2020 - Beefmaster SA · Cover Amberdene Beefmasters & Bos Blanco Back Cover. Official Journal of...

2 0 2 0 A M P T E L I K E J O E R N A A LO F F I C I A L J O U R N A L

CATTLE BREEDERS’ SOCIETY OF SABEESTELERSGENOOTSKAP VAN SA

Official Journal of Beefmaster SA 20202

Official Journal of Beefmaster SA 2020 3


INHOUD | CONTENT

Presidentsbrief 7Redaksie brief 9IN DIE KOLLIG • BBU Genomiese projek 10 • Kudde van die jaar 15 • Nasionale Karkaskompetisie - Samic 20 • Toekennings 2019 22DIE BOER EN DIE WETENSKAP • Breeding values - Blup 28 • Die Verskil tussen die Speen Direkte en Speen Maternale (Melk) Teelwaarde 33 • Corrective Mating 36BOER SLIM • DIe rol van die stoetbedryf 43 • How to use breeding values to select cattle 50 • Vleis van veld 55 • Dekgewasse se invloed op die vloei van voer, vee en kontant 59BLY INGELIG • Bek-en-Klouseer 64 • Langtermyn klimaat vooruitsigte 68 • Wat maak jy met jou rykdom 70 • Beesbrusselose 76 • Metaangasse se lang skaduwee 82BEEFMASTER BLY GEFOKUS • Nasionale Veiling 2019 97 • Groot sukses op NAMPO 103 • Beefmaster kraai weer koning by ALFA 106 • Weston Agricultural College at the Royal Show 110 • Assessering van Ermelo Hoërskool leerders 112 • Mpumalanga Toer 116KEURDERS KURSUSSE 119KLUB VERSLAE 124ALGEMEEN • In die lens foto kompetisie 132 • Uit Ouma se kombuis 133 • Veilings datums 2020 134 • Veilings uitslae 2019 138 • Ledelys Beefmaster 144

Dekblad foto geborg deur: Andre Pretorius Fotografie

Fotograaf: Andre Pretorius


ADVERTEERDERSADVERTISERS

ADVERTISER PAGEDreamworld Inside Front

CoverMilestone 1Vleissentraal 2Blinkmeneer Beefmasters 11Sandspruit Beefmasters 12Andre Pretorius Photography 13Amakosi Beefmasters 14Hardus Steenkamp Beefmasters 19Algar 25Schyff Beefmasters 26-27Riverglen Wildlife 31Brico Beefmasters 35Rhenoster Vallei Beefmasters 37Mponjwana Beefmasters 39WO Beefmasters 40-41Benchmark Beefmasters 42BKB 45Alzu Beefmasters 48-49Daybreaker Beef Off Grass 54Igwa Beefmasters 58Magmar Beefmasters 62Pleasant View Stud 63Janzel Beefmaster 66Van-Dev Beefmasters 67

ADVERTISER PAGEJosephus Beefmasters 69Impact Beefmasters 71Keerkring Beefmasters 72Molatek 75Super Beef & Vova Genetics 78-79Budler Beefmasters 81Kalahari Beefmaster 84-85ProAgri 87Elanco Rumensin 90-91Ottershaw Beefmasters 93Sizana Beefmasters 94-95Rock Valley 100-101Majesto Beefmasters 104-105Nooitverwag Beefmasters 108-109Bos Blanco Beefmasters 114-115Quardsen Beefmaster 118Rensgrow Beefmasters 121Nutri Feeds 122Agen Landgoed 127Ivukile 128Human Beefmaster 130-131Petana 150Petana Inside Back

CoverAmberdene Beefmasters & Bos Blanco Back Cover


PRESIDENTBOODSKAP VAN DIE

Great things never came from comfort zones.

I think we will all agree that the continuous drought in large parts of South Africa, as well as the outbreak of foot-and-mouth disease left us in

a very uncomfortable position this past year.

The ripple effect of this together with other factors outside our control had a negative influence on cattle prices. We all had to adjust to this. When I look back, I still feel the year had a positive outcome with great learning opportunities for all, as the demand for quality livestock was still high, irrespective of these factors. Fortunately people are very adaptable, and these very adaptions cause progress. Nothing brings us hope like good rains! We started 2020 with welcome rain where it was critically needed. With green fields everybody can be enthusiastic and excited about the 2020 auction season! This is a golden opportunity for us to grow our Beefmaster market share. Knowing that quality will always be in demand, astringent selection is

necessary in favourable conditions to ensure the high standards our buyers nationwide became accustomed to.

It is an honour to thank every breeder for your selfless input to better and promote our breed. Not only through your hard work, but also through our involvement and participation in amongst others the Alfa Show, Royal Show, Nampo and good results at the slaughter-ox competitions, confirms that we all pull together and put in hard work with one communal goal: Good Better Beefmaster!

To my fellow stock farmers: may this be a year of highlights, with enough green grass, enough gratitude and tolerance, and prices that will excite your heart over our Beefmaster Breed!

Enjoy the read. Enjoy farming!

Wilhelmus van der Schyff


RAAD | COUNSIL

DAVE ARMITAGESkole; Inligtingsdae;

Skoue & Toere; Streeksverteenwoordiger

Kwazulu Natal

PIERRE HARTRasbevordering & Farmers Weekly

WERNER HARMSEStreeksverteenwoordiger

Vrystaat

HARDUS STEENKMAPLandbou Weekblad &

Streeksverteenwoordiger Limpopo

ERHARD PRINSLOOStreeksverteenwoordiger

Gauteng

NIEL VAN PLETZENSA Stamboek &

Konstitioneel

JAN DU TOITNampo & Alfa &

Streeksverteenwoordiger Noord Wes

PAT BAILEYStreeksverteenwoordiger

Eastern Cape

DAWIE DU PLESSISWebblad

DR HENDRIK MEYERFinansies

FRANS ODENDAALGenomika &

Buitelandse Sake

WILHELMUS VAN DER SCHYFFPresident & Uitvoerende dag bestuur

JAN SCHOEMANUitvoerende dagbestuur, Lede

aangeleenthede & Streeksverteenwoordiger Noord Kaap

GERRIE JANSEN VAN RENSBURGVisie President & Uitvoerende dagbestuur;

Rasverbetering; Keurings; Inspeksies; Opleiding; Kursusse & K I Bulle;

Streeksverteenwoordiger Mpumalanga

JOHAN PRETORIUSFacebook &

Elektroniese Kalender

MAGDA BOUKESKantoor

RIANA DE BEERJoernaal

STEPHAN DU PLESSISNasionale Borge



Die bogenoemde gesegde is duidelik deur die Beefmaster uitgebeeld gedurende die afgelope jaar. Ons ras groei van krag tot

krag in gewildheid en getalle en die prestasie van die Beefmaster maak almal opgewonde en stel niemand teleur nie.

Dit is ‘n voorreg om deel te wees van die Beefmaster-familie wat oor soveel positiewe energie beskik... mense met ‘n passie om die ras vorentoe te dryf.

Baie dankie aan elkeen se bydrae met advertensies en artikels om van die Beefmaster Joernaal ‘n koffietafel uitgawe te maak.

Spesiale dank aan Graydient Creative Consultants vir die ontwerp van die uitgawe en ook aan Magda Boukes vir al haar hulp en bystand.

Ons vertrou u sal die Beefmaster Joernaal interessant en insiggewend vind en goed sal kan benut in die bemarking van Beefmaster.

Ons ontvang graag u voorstelle en idees insake die Joernaal per epos by [email protected]

Geniet dit en lekker lees!

Vriendelike groeteRiana de Beer

TRUST THE VIBESENERGY DOESN'T LIE

The above-mentioned saying is a true reflection of what the Beefmaster achieved this past year. The breed is growing from

strength to strength in popularity and numbers, and the performance of the Beefmaster excites everyone and disappoints no-one.

It is a privilege to be part of the Beefmaster-family who has so much positive energy... people with a passion to promote the breed even further.

Thank you to everyone’s contributions with advertisements and articles to help make the Beefmaster Journal a coffee table edition.

Special thanks to Graydient Creative Consultants for the design of this edition and to Magda Boukes for all her assistance.

We trust you will find the Beefmaster Journal interesting and informative and that it will serve well in promoting the Beefmaster.

Your suggestions and ideas regarding the Journal can be emailed to [email protected]

Enjoy the reading!

Kind regards,Riana de Beer

REDAKSIONEEL | EDITORIAL


IN DIE KOLLIG

The South African Beefmaster breeders and the buyers of their bulls have been at the forefront of breeding since the introduction of

genomic information in their BLUP breeding values. GEBVs, as the Genomically enhanced Breeding Values are known, enable breeders to reduce risks when selecting from the pool of selection

candidates, especially bulls, as replacement stock in their herds. From the onset, the latest technology that science has to offer is used to predict genetic merit accurately. Beefmaster breeders are also known not to show any bias in comparing any potential breeding stock and to evaluate them on equal terms, as is required for fair comparison in BLUP breeding value predictions. The combination of clearly defined trait definitions, objective measurements, accurately recorded parentage, fair comparisons, well-constructed selection indices and sensible breeding plans are the elements to successfully make use of GEBVs.

Participation in the Beef Genomics Program (BGP), funded by the Technology Innovation Agency (TIA), has resulted in enabling SA Stud Book to develop and implement GEBVs, based on the application of Single Step methodology, for the Beefmaster Breeders’ Society of South Africa (BBSSA). As a key of this methodology, it makes use of the true genetic relationships among animals in the breed, based on similar single nucleotide polymorphism (SNP) patterns on the genome when the genotypes of animals are known. The associations of such

related families and individuals with differences in genetic merit in the breed, for all the traits with BLUP breeding values, assist in enhancing the accuracy of genetic merit prediction for young animals, those that cannot be recorded (like maternal ability/milk or daughter fertility for bulls or scrotum circumference for females) and for with limited recording (like real

time ultrasound and feed intake for some bulls). The implementation of genomic selection has also resulted in more and more breeders genotyping their animals to benefit from making use of this technology. Genotyping has also assisted in identifying animals with markers associated with traits influenced by single genes, such as double muscling and polledness.

The next step

On the other side of the Atlantic Ocean, Beefmaster Breeders United (BBU) in the USA has also implemented similar methodologies for the genetic merit predictions for the Beefmaster cattle of their members. Of special significance is the fact that the USA and South African Beefmaster populations are genetically connected since the breed originated in the USA and genetic material is constantly exported to South Africa on a regular basis. Normally, the genetic merit of individual animals from two populations will only be comparable if data is pooled prior to BLUP breeding value predictions or when a methodology, such as MACE (multiple across

THE NEXT STEP IN GENOMIC SELECTION

...SET THE BAR.

&

Vervolg op bl. 13


AWARDED BEST BREEDER AT EASTERN FREE STATE

VELD BULL CLUB - 2019

Sired by: Bos 10-0432Cow Value:

Sired by: WO 14-179Cow Value:

TOP GENETICS

WO 13-225Milk:Calf Growth:


[email protected]


country genetic evaluations) employed by Interbull is used where known BLUP values of the same bulls in both countries are known. Due to a limited number of progeny per bull, MACE is not a practical alternative.

The real step-up is to use genomic information to link the two Beefmaster populations effectively. BBU and BBSSA immediately realised the value of exchanging genotypes of animals between the two bodies. This will not only establish the true genetic relationship between the two populations but the inclusion of the information in Single Step Genomic Selection evaluations will enable breeders to immediately compare the genetic merit of these animals in both populations. South African Beefmaster breeders will therefore be able to compare the genetic merit of USA bulls on the local scale, given that they are genotyped.

This merit can immediately be compared to that of local bulls and, more importantly, specific cow herds. USA bulls will also receive BLUP breeding values for all traits locally included in genetic merit predictions, including the Cow Value, Growth Value and Production Value. This puts decisions on semen imports to a new level. Similarly, USA Beefmaster breeders will immediately be able to market their bulls with confidence in South Africa as the progeny performance will be predicted more accurately.

Although mind boggling, technologies involving genomic information are accelerating the pace of selection. The Beefmaster Cattle Breeders’ Society of South Africa and their BBU counterparts break new ground and is lifting the bar for future developments and practical implementation of the latest scientific discoveries in animal breeding.


Die Rhenostervallei-Beefmasterstoetery van dr. Hendrik en me. Ronel Meyer het vanjaar kuddes van verskeie ander telers en beesrasse geklop om die prys as Vleissentraal en SA Stamboek se Vleisbeesstoetkudde van die Jaar in te palm.

Meyer het ’n veeartspraktyk in Boksburg en hy en Ronel, ’n wiskundige, boer met die Beefmasters op die plase Roodepoort by Mookgopong en Rhenostervallei by Radium in Limpopo.

Hy sê die belangrikste rede hoekom sy Beefmaster-kudde syns insiens die prys ontvang het, is omdat hy soveel klem op die bepaling van ouerskap lê. Hy kan met wetenskaplike akkuraatheid deur middel van DNS-toetse elke bul, koei en kalf se ouerskap bewys.

“As ek kan bewys wie ’n bul of koei se pa en ma is, kan ’n koper die syfers wat ek oor ’n dier aanbied, as die absolute waarheid aanvaar.”

Hy self koop nie ’n bul vir sy kudde as sy ouerskap nie bewys is nie. Dit laat reg geskied aan hul leuse: “We value genetic traceability.”

Toe hy met stoetteling begin het, het Meyer soms agtergekom die dier wat hy gekoop het, is nie presies wie die verkoper gesê het hy is nie omdat hy ’n ander pa het, byvoorbeeld omdat ’n ander buloor die heining gespring het. Die akkurate bepaling van ouerskap kan slegs gedoen word deur sterthare met DNS te laat ontleed.

Wanneer ’n teler bevestiging van die ouerskap van sy hele kudde het, kan hy werklik vooruit boer en sy kudde se genetiese samestelling verbeter deur aandie hand van teelwaardes korrektiewe paring toe te pas. Hy kan dus ’n bul met goeie teelwaardes vir bepaalde eienskappe gebruik om koeie te dek waarvan hy die ooreenstemmende eienskappewil verbeter.

Sodoende het Meyer se stoetery se tussenkalfperiode(TKP) van 420 dae tot 370 dae verbeter, die speengewig van bulletjies van 240 kg tot 310 kg en dié van versies van 210 kg tot 260 kg, en die ouderdom met eerste kalf van 33 maande tot 23 maande.

IN DIE KOLLIG

WENKUDDERegte DNS lei tot wenkudde.

Kombineer ’n veearts se kennis van diere en gesondheid, die ervaring van boerdery wat hy by sy oupas en kliënte gekry het, en sy vrou se aanleg vir syfers en aandrang op presiesheid, dan kry jy hierdie egpaar wie se Beefmasterstoetery vanjaar as Suid-Afrika se beste vleisbeesstoetkudde aangewys is. Die heel belangrikste is egter goeie kos.

Vervolg op bl. 16

Bulle op die plaas by Radium waar hulle op die veld grootgemaak word met net ’n lek om te verseker hulle het geen tekort aan noodsaaklike voedingstowwe nie.


DEELTYDSE BOER

Meyer het in 1996 deeltyds begin boer – aanvanklik met wild en kommersiële Bonsmaras op ’n plaas by Rust de Winter. In 2007 het hy die Beefmasterstoetery op Rhenostervallei begin en in 2014 die plaas Roodepoort gekoop, waar hy die koeikudde aanhou, terwyl die bulle op die plaas by Radium loop.

Hy het intussen van die wildboerdery ontslae geraak – voordat die pryse so drasties gedaal het.Sy ervaring van boerdery kom van sy oupas aan vaders- en moederskant, onderskeidelik dr. Tom Meyer van Bothaville en mnr. Hendrik Meyer van Bapsfontein.

Uit die aard van sy werk as veearts het hy ook baie van die fynere kunsies van boerdery by sy kliënte geleer. Hy het sy eerste stoet-Beefmasters in 2007 by mnr. Mike Bosch van Bela-Bela gekoop. Bosch, ’n raskeurder, het Meyer se beeste gekeur en hom raad gegee.

Meyer het spoedig geweet watter tipe bees hy wil teel, en vandag is hy uiteindelik by dié teeldoelwit. ’n Vroulike dier vir sy omgewing moet medium- tot grootraam wees, wigvormig met ’n goeie uier, sterk bene, sterk bek en lang ore. “Hoe groter die ore, hoe meer is die Bos indicus-bloed in haar, wat op gehardheid dui,” sê hy.

’n Bul moet sterk en manlik vertoon, sterk oogbanke, bene en pote hê, asook goeie breedte, kapasiteit en ’n goeie skrotum wat op vrugbaarheid dui. Teling en bestuur is op ses eienskappe gerig, naamlik vrugbaarheid, temperament, gewig, bouvorm, gehardheid en melkproduksie.

TEELWAARDES KOM EERSTE

Meyer sê wanneer hy selekteer, gee hy eerste aandag aan teelwaardes voordat hy na voorkoms kyk, want genotipe is belangriker as fenotipe. As die dier goeie syfers het, beoordeel hy hom of haar verder volgens voorkoms en bouvorm en besluit dan of dié bul of koei ’n rol sal speel om die kudde geneties te verbeter.

Die stoetery het al baie sedert daardie vroeë jare gevorder. Daarin speel voeding ’n groot rol. “Sukses met veeboerdery word grootliks deur die woordjie ‘kos’ bepaal. Jy kan potensieel die beste bulle in die land gebruik om voortreflike koeie te dek, maar as hulle nie genoeg kos kry nie, help die gene nie baie nie. Boere wil dikwels by my as veearts weet wat hulle die beeste kan inspuit sodat hulle presteer. Myantwoord is altyd: Gee hulle goeie kos.

Die vyf belangrikste, meetbare aspekte, naamlik speengewig, melk, tussenkalfperiode, ouderdom met eerste kalf en langlewendheid, is almal van kos afhanklik.”

Hy doen nie sinchronisering en kunsmatige inseminasie (KI) nie omdat hy vanweë sy werk as veearts nie pal op die plaas is nie. Meyer sorg egter dat die Beefmasters die regte kos gedurende bepaalde produksiestadiums kry.

“Niks is egter vas nie. Jy moet jou plaas, veld en die gras en bosse se voedingswaarde ken sodat jy weet wanneer om die lekke te verander. ’n Maer koei raaknie sommer so dragtig nie, ook nie ’n oorvet koei nie. ’n Kondisietelling van 3,5 is vir my die ideaal. Dan vat hulle byna oornag.”

BEPLAN VOERVLOEI

Die beplanning van ’n stoetboerdery is dus van goeie voervloei regdeur die jaar afhanklik. “Daar is nie foefies nie. Sorg net dat die beeste regdeur die jaar goeie kos kry,” sê hy. Weens die gereelde

Een van die topklas-Beefmasterbulle wat dr. Hendrik Meyer geteel het. Die kudde het reeds groot opgang gemaak, maar hy mik steeds hoër.


droogtes is dit nie maklik nie, maar dit neem nie die verantwoordelikheid van die boer weg nie.

By Mookgophong loop die 170 stoetkoeie slegs op aangeplante weidings omdat dit so belangrik is dat hul kondisie eksieperfeksie is om maklik dragtig te raak en swaar kalwers te speen. “Die plaas is baie sanderig en het swak natuurlike weiding gehad. Ek het die plaas ontbos, op 40 ha ná ál die veldgras uitgeploeg en smutsvinger- en Brasiliaanse gras gesaai,” sê Meyer.

Daarvan word 40 ha nou met spilpunte besproei en 210 ha is aangeplante droëlandweiding. Dit word regdeur die jaar benut – in die somer as groen weiding en in die winter as staande hooi. Die koeiewei in die winter ook op 40 ha hawerlande wat besproei word.

As hy ’n oorskot gras het, sny hy dit af en baal dit vir gebruik gedurende die winter of om te verkoop. Die droëlandweiding het verlede somer só goed geproduseer dat hy 3 000 bale kon maak. Die oorblywende 40 ha veldgras gaan ook mettertyd met aangeplante weiding vervang word.

Die koeie kry in die somer gedurende die drie maande vanaf kalf ’n produksielek teen 2 kg per koei per dag. Ná speen het hulle toegang tot ’n gewone somerlek. Wanneer hulle in die winter op die hawerwei, skakel Meyer oor na ’n fosfaatlek.

BULLE OP VELD

Die bulle loop by Radium deur die jaar op natuurlike soetveld, bestaande uit wit en blou buffelsgras. Hulle kry deur die jaar lekke om voedingstekorte te voorkom, want die bulle moet gedurende die dektyd in ’n goeie kondisie wees. Daar is ook baie rosyntjiebosse wat tesame met witgatbome, raasblaar en jakkalsbessie goeie kos vir die bulle bied.

Die jong bulle ondergaan ná speen ’n fase D-toets op die veld waar hulle in die winter ’n produksielek teen 1,5 kg per dier per dag kry en in die somer ’n somerlek, ook teen 1,5 kg.

Die eerste seleksie van bulkalwers is volgens speengewig. Dié wat redelik ver onder die gemiddelde van die kontemporêre groep speen, word uitgeskot en aan voerkrale verkoop. Die

bulkalwers wat hierdie seleksie slaag, word na die bulplaas verskuif en dan in die fase D-toets op die veld geëvalueer.

Die beste presteerders in dié groeitoets word op grond van ’n kombinasie van groei én voorkoms geselekteer. Meyer gebruik die heel bestes vir ’n jaar as teelbulle. Die res word op sy produksieveilingop Bela-Bela aangebied.

Die verse word volgens hul gewig op 12 maande oud geëvalueer. Ligte verse word verkoop om geslag te word. Koeie word ook vervang as hulle een keer niekalf nie of twee jaar ná mekaar ’n kalf speen wat nie vir die stoetery geregistreer kan word nie. “Dit is my eie seleksieriglyne en is strenger as die riglyne vir TKP en ander aspekte wat deur die Beefmastergenootskap voorgeskryf word,” sê Meyer.

GOEIE KUDDEGESONDHEID

As veearts weet Meyer wat die waarde van goeie kuddegesondheid is. Hulle toets die beeste elke jaar vir tering en brucellose. Hy ent die verse met speentyd, voordat hulle die eerste keer gedek word, en ná kalf met die RB51-stam teen brucellose in. Verder ent hulle die beeste in teen spons-, lam-, milt-, drie-dae-stywe-, knopvel- en olifantvelsiekte.

Hartwater kom ook voor. Voorkomende behandeling is moeilik omdat daar soveel verskillende hartwaterstamme is. Meyer sê dis die beste as ’n kalf in die eerste 28 dae ná geboorte deur hartwaterbosluise gebyt word om immuniteit op te bou. Dis hoekom Meyer se kalftyd in die somer is wanneer die bosluisdruk hoog is.

In dié tyd moet die kalf bies kry om ook vanaf sy ma af ’n mate van immuniteit te kry, maar hy moenie gedip word nie. Daarna moet die beeste goed dopgehou word en sodra een koors kry, met oksitetraklien of sulfamiddels geblok word. Op dié maniere is vrektes weens hartwater in Meyer se kudde net sowat 4%, teenoor 15-20% by sommige ander beesboere.

GOEIE SPANWERK

Meyer en sy vrou werk as ’n span saam. Hulle probeer een keer per week by die boerdery uitkom,

Vervolg op bl. 18


wat deesdae makliker gebeur omdat hul dogter dr. Rika Uys, seun, dr. Schabort Meyer, en dié se vrou,dr. Melissa Meyer, ook deel van die veeartspraktyk is. Tussendeur is hul bestuurder, mnr. Rudi Yzelle, in beheer van die boerdery op Mookgopong. Die bejaarde mnr. Philemon Monaheng sorg op Radium dat alles klopdisselboom met die bulle verloop.

Die verkoop van stoetvee is hul belangrikste inkomste. Hulle het al R200 000 vir ’n bul en R125 000 vir ’n vers gekry.

Meyer sê hy is tevrede met hul vordering. Hulle is egter nog nie by die einddoel nie. Ronel bevestig hulle

Dr. Hendrik MeyerE-pos: [email protected]

kan die stoetery verder verbeter. “Ons streef daarna om van elke koei elke jaar ’n geregistreerde kalf te kry.” In die algemeen konsentreer hulle nou op die verbetering van die teelwaardeindeks vir geboorte – direk (die kalf se bydrae tot sy eie geboortegewig) én maternaal (die ma se bydrae tot die kalf se geboortegewig) en die voeromsettingsverhouding.

As ’n koei nie genoeg melk het nie, kan sy nie ’n swaar kalf speen nie. Té veel melk is ook nie wenslik nie, want dan boet ’n koei op TKP in. ’n Té hoë melk-indeks het ook ’n nadelige invloed op bulkalwers semanlikheid. Uiteindelik is ’n goeie middeweg die antwoord.

Die vroulike diere loop op aangeplante weiding en kry in die winter ook hooi en lekke om te verseker hulle bly in die beste kondisie om weer dragtig te raak wanneer die bulle hulle dek.

Aangeplante weiding wat besproei word. Agter staan ’n spilpunt. Die koeie het toegang tot aangeplante Brasiliaanse gras, smutsvingergras en hawer in die winter. Die plaas waar die koeie gehou word, is op 40 ha na onder aangeplante weidings gevestig.


Teelwaardes IndekseDoelwit Kudde 2019 Ras

Koeiwaarde 113 113 100

Groeiwaarde 109 103 100

Produksiewaarde 112 109 100

Stamboek

Platinumkoei

2019

goueElite Kudde2019

083 653 5610 [email protected] Steenkamp

Rhenostervallei Beefmasters: 11 SEPTEMBER 2020 Limpopo-telers 13 NOVEMBER 2020

Veilingskrale BELA BELA


IN DIE KOLLIG

Dit is vir SAMIC ‘n besonderse groot voorreg om aan te kondig dat produsente wat met Beefmasters en Beefmasters kruisings

boer, ‘n besonderse tot ‘n uitsonderlike goeie jaar beleef het met hulle deelname aan die Nasionale Karkaskompetisies in Suid-Afrika.

Die karkasse wat aan die haak gewen of goeie plekke behaal het, is ‘n spieëlbeeld van wat presies die verbruiker se behoeftes is met betrekking tot die aankope van beesvleis, in besonder egalige genoegsame vetverspreiding en goed bespierde primêre snitte, wat ‘n toonbeeld van goeie bouvorm en dus perfekte genetika is.

Die uitstaande prestasies van die 2018/2019 Nasionale Karkaskompetisie siklus was die feit dat Mev CJ Steyn, alreeds in haar tagtigs, met ‘n suiwer Beefmaster Nasionaal enkelkarkas gewen het, met ‘n formidabele punt van 99.93%.

NASIONALE KARKASKOMPETISIE

Verdere besonderse prestasies was die 5de plek in die groep afdeling, wat gewen was deur Aberfield, met ‘n groep punt van 94.76%.

Verdere vermelding van goeie prestasies met betrekking tot die Beefmaster ras, was in die enkel afdeling, Mnr DJ Marais wat Nasionaal 13de gekom het, met ‘n punt van 95.15%.

JJM Farming was Nasionaal 16de met ‘n punt van 94.93 %, Blikfontein Boerdery was Nasionaal 18de, met ‘n punt van 94.79% en Western Agricultural College was Nasionaal 20ste, met ‘n punt van 94.54%.

Dit dien ook vermeld te word dat voormelde 20ste plek, die Royal Agricultural Skou se 2019 Enkel Skou Wenner was.

CCM Farms cc was Nasionaal 21ste met ‘n punt van 94.53%, Peach Boerdery was Nasionaal 27ste met ‘n punt van 93.81%, P Rushmere was Nasionaal 28ste met ‘n punt van 93.67%, DM Anderson was Nasionaal 39ste met ‘n punt van 91.05% en JC Mahne met ‘n Beefmaster x was Nasionaal 44ste met ‘n punt van 90.50%.

By die Groepe naas die vyfde plek Nasionaal van Aberfield, was Blikfontein Boerdery Nasionaal 9de met ‘n punt van 92.91%, Peach Boerdery was Nasionaal 16de met ‘n punt van 91.43%, DJ Marais was Nasionaal 23ste met ‘n punt van 89.72%, P Rushmere was Nasionaal 26ste met ‘n punt van 89.11%, CCM Farms cc was Nasionaal 33ste met ‘n punt van 88.48%, Western Agricultural College was Nasionaal 36ste en was terloops ook die wenner van die Royal Agricultural Show in die groep afdeling, met ‘n punt van 88.03%, DM Anderson was Nasionaal 38ste met ‘n punt van 87.47%, K Smit was Nasionaal 41ste met ‘n punt van 86.93%, CCM Farms cc was Nasionaal 42ste met ‘n punt van 86.79% en JC Mahne was Nasionaal 46ste met ‘n punt van 85.81%.


Inaggenome die bovermelde inligting, is SAMIC trots daarop om geassosieer te word met die Beefmaster ras, wat uit voormelde resultate ‘n uitsonderlike goeie jaar beleef het en verseker baie trots daarop kan wees om te kan weet dat die betrokke ras voldoen aan die basiese vereistes wat die verbruiker stel, vir die aankoop van goeie, gesonde en heilsame beesvleis.

SAMIC dra hiermee hulle algehele gelukwensing oor aan ‘n besonderdere teelgenootskap met ‘n besondere goeie karkas en derhalwe ‘n besondere goeie eindproduk, vir ‘n optimale prys.


IN DIE KOLLIG - TOEKENNINGS

DINEE 2019

Landbouweekblad - SA Stamboek Elite Platinum Koei toekenning - G A STEENKAMP

Veeplaatt - SA Stamboek Elite Platinum Bul toekenning - W L PIETERSE

Vleissentraal - SA Stamboek Elite 2019 Stoetkudde van die jaar Finalis Vleisbees - GW VAN DER SCHYFF VENNOOTSKAP


Vleissentraal - SA Stamboek Elite 2019 Stoetkudde van die jaar Finalis Vleisbees - G A STEENKAMP

Vleissentraal - SA Stamboek Elite 2019 Stoetkudde van die jaar WENNER Vleisbees - J H MEYER

Beefmaster Persoonlikheid van die jaar 2019 - J H SCHOEMAN


DUBBEL GOUD TOEKENNINGSTOET KONTAK PERSOON PROVINSIE

RHENOSTERVALLEI BEEFMASTERS HENDRIK MEYER LIMPOPO

GOUE TOEKENNINGSSTOET KONTAK PERSOON PROVINSIE

SCYFF BEEFMASTERS WILHELMUS VAN DER SCHYFF VRYSTAAT

SUPERFARM BEEFMASTERS CHRIS DWEN KWAZULU NATAL

QUARDSEN BEEFMASTER RIANA DE BEER VRYSTAAT

WAGNOU BOERDERY DR A DIPPENAAR & JOHAN NAMIBIE

SARWIPI BEEFMASTERS WILLEM EN SARIE PIETERSE MPUMALANGA

BEEF ON GRASS PTY LTD THEUNIS OOSTHUIZEN UYS LIMPOPO

MAJESTO BEEFMASTERS THEO COETZEE NOORD-WES

NOOITVERWAG BEEFMASTERS GERRIE EN KERNEELS JANSEN VAN RENSBURG MPUMALANGA

HARDUS STEENKAMP BEEFMASTERS HARDUS STEENKAMP LIMPOPO

JANZEL BEEFMASTERS JAN DU TOIT NOORD-WES

SILWER TOEKENNINGSSTOET KONTAK PERSOON PROVINSIE

VAN DEV BEEFMASTERS PIETER VAN DEVENTER NOORD-WES

KANDYS BEEFMASTERS JOHAN PRINSLOO VRYSTAAT

SPOLIDORO BEEFMASTER TONY SPOLIDORO NOORD-WES

BRICO BEEFMASTERS DEWALD SCHOLTZ NOORD-WES

DELTA BEEFMASTERS STEPHAN DU PLESSIS MPUMALANGA

W O BEEFMASTERS FRANS EN WILLEM ODENDAAL VRYSTAAT

IVUKILE BEEFMASTERS DRIES DE KLERK OOS-KAAP

OPEN RANGE BEEFMASTERS JAN VAN HEERDEN GAUTENG

JALOUMA BEEFMASTERS JAN DE KOCK NOORD-WES

BRONS TOEKENNINGSSTOET KONTAK PERSOON PROVINSIE

HUMAN BEEFMASTERS PIET HUMAN VRYSTAAT

PETANA BEEFMASTERS PETIE KOEKEMOER NOORD-WES

BOS BLANCO BEEFMASTERS DENNIS STAAL VRYSTAAT

CORBETT BEEFMASTERS MARIUS CORBETT OOS-KAAP

STONECHREST BEEFMASTERS JUAN STEENKAMP NOORD-WES

AGEN LANDGOED RIA STEYN VRYSTAAT

MUIRFONTEIN BEEFMASTERS PETER MUIR KWAZULU NATAL

IN DIE KOLLIG - TOEKENNINGSSTAMBOEK ELITE VLEISBEES KUDDES


BRONS TOEKENNINGSSTOET KONTAK PERSOON PROVINSIE

RENSGROW BEEFMASTERS GUY RENSBURG OOS-KAAP

MPONJWANA BEEFMASTERS DAVE ARMIAGE KWAZULU NATAL

MILESTONE BEEFMASTERS JOHAN PRETORIUS MPUMALANGA

PSB BEEFMASTERS NICO PRETORIUS NOORD-WES

KAINGO BEEFMASTER PAUL JANSE VAN VUUREN LIMPOPO

OTTERFONTEIN BEEFMASTERS QUINTIN DE JAGER GAUTENG

BENCHMARK BEEFMASTERS MARK FORD OOS-KAAP

IDAHO BEEFMASTERS KALLIE FOURIE NOORD-WES

OSTERLOH BEEFMASTERS EUGENE OSTERLOH OOS-KAAP

SIZANA BEEFMASTERS IGNUS VAN NIEKERK MPUMALANGA

STEINBERG BEEFMASTERS WILHELM STEINBERG GAUTENG


Without going into too much detail, the history of modern-day farm animal breeding is briefly as follows:

Early history, after the domestication of livestock species, clearly show the impact of the symbiotic relationship between man and animal. Migration of livestock species and breeds are mostly linked to the movements of people. Not only were preferences shown in terms of the function of animals, but in many cases, it is also linked to cultural or status significance. Simply think of the value of specific cattle hide colours for the manufacturing of shields for a king’s army, in an African context, for example. Murals at the Egyptian pyramids not only depict the utilisation of livestock for food, fibre and milk, but also even depicts the application of reproduction and breeding practices. The well-known description in the Bible of the application of selection and breeding of small stock also come to mind. Jacob managed to select for specific colour patterns as well as for production efficiency among the sheep of his uncle. According to the story, he was very successful in applying hand mating by keeping the rams at the water points waiting for the ewes to quench their thirst.

Modern day breeding can be traced back to Sir Robert Bakewell that coined the phrase: “Like begets like”. He noticed that the performance or other properties that distinguish some breeding animals from others run in families (even breeds). One of his “secrets” was to “mate best with best”, to combine the good properties of good parents and other related animals in their progeny.

Although this principle seems to be sound, many years later Professor Jay Lush remarked that: “Like does not always begets like”.

DIE BOER EN DIE WETENSKAPBLUP BREEDING VALUES: STILL RELEVANT IN MODERN DAY LIVESTOCK BREEDING?

Historic perspective and relevance

This is one of the basic principles of BLUP breeding values, namely that related animals share common genes, especially those genes responsible for differences in progeny performance.

This describes the second very important principle in BLUP breeding values, namely that each animal receives a random sample of genes from its parents.

Being random means that the likelihood might be biggest that the genetic merit of an individual will be the average of its parents (mid-parent), but this will hardly ever exactly be the case. This random sample received is referred to as the “Mendelian sampling effect”, named after Gregor Mendel, the person who discovered the fundamental laws of inheritance (based on single gene expressions).

During the “Golden Age” of Population Genetics brilliant scholars like Haldane, Fisher and Wright were producing their great work and were instrumental in reconciling biometry with genetics and thereby creating a new science. The relationships and expected behavioural patterns through selection (natural and artificial) is best described by the handbook that all modern-day geneticists and animal breeding students had to endure at University, namely “An introduction to Quantitative Genetics” by Falconer (and in later editions Falconer & Mackay). The most important concepts, when dealing with traits of economic importance in farm animals (and probably with all other living organisms), is the role and parameters associated with additive gene actions. The variation in the contribution of additive genes to the observed (or measured) variation among farm animals in a defined set of environmental and other known parameters (such as the sex of the animal, the age of its dam, its own age, the way it was treated, especially in terms of nutrition, and others) is of special interest as this is normally described as a


The third and, as important, source to be included in BLUP breeding value predictions, is the additive (genetic) variance (and covariance when more than one trait or other random effects are included in the predictions) in relation to the observed or measured variation, therefore accounting for differences in heritabilities among traits and populations (breeds and/or breed groups).

ratio when compared to total phenotypic (observed or measured) variance (in the same set of the defined environmental or known parameters). This ratio is called the heritability (in the “narrow sense” for the specific trait). Visscher, et al (Nature reviews in GENETICS Volume 9, 2008) refer as follows to the term heritability:

“Heritability allows a comparison of the relative importance of genes and environment to the variation of traits within and across populations. The concept of heritability and its definition as an estimable, dimensionless population parameter was introduced by Sewall Wright and Ronald Fisher nearly a century ago. Despite continuous misunderstandings and controversies over its use and application, heritability remains key to the response to selection in evolutionary biology and agriculture, and to the prediction of disease risk in medicine. Recent reports of substantial heritability for gene expression and new estimation methods using marker data highlight the relevance of heritability in the genomics era.”

Charles Henderson showed the world how to combine all these sources and to utilise them to accurately predict the genetic merit of animals. Not only did he brilliantly and elegantly constructed a complete set of equations for breeding value predictions and variance component (heritabilities genetic correlations) but also solved one of the marvels of modern day science by explicitly drafting the inverse of the matrix describing the relationships among all the animals included in the equations, something that was not possible to calculate with the computing power at the time (still not possible today for large datasets). An appropriate quote from one of Henderson’s students are:

“Henderson, over the years, introduced matrix algebra as a tool to a reluctant set of animal breeders. Matrix formulation made description and derivation of properties of the Mixed Model

A side comment:

Shortly before his death, Henderson addressed an audience of mostly young scientists present. He ended with some advice to them:

1. Study methods of your predecessors.2. Work hard.3. Do not fear to try new ideas.4. Discuss your ideas with others freely.5. Be quick to admit errors. Progress comes

by correcting mistakes.6. Always be optimistic. Nature is benign.7. Enjoy your scientific work. It can be a

great joy.

Equations much easier. Matrix algebra also led to Henderson’s second most important discovery, one that ensured the Mixed Model Equations would become the foundation both for genetic evaluation systems worldwide and for estimation of the necessary genetic variances and covariances. He knew that records of relatives of an animal provide information about the genetic value of that animal.”

Continue on p. 30


Henderson’s ground-breaking ideas and work were published as early as the 1950’s and is still the foundation of accurate breeding value (genetic merit) prediction for farm animals (and a wider variety of other species).

In principle, BLUP breeding values rely on a few assumptions:

• A distribution in observations and/or measurements that is close to a “normal” distribution (the known “bell curve”), especially within contemporary groups.

• Relationships among animals included in the prediction rely on an “average” relationship. This is especially important for collateral sibs (brothers and sisters, cousins, and others). Due to the randomness in the formation of gametes, the true relationship is not known, except when other means, such as molecular information is used to determine specific relationships.

• Genetic parameters, such as additive genetic variation within a trait (and resultant heritability estimate) and covariances among traits (and resultant genetic correlations) reflect that of the population (breed) the breeding value predictions are intended for.

It is therefore reasonable to enquire if these assumptions are met and if not, what impact that may have on the accuracy of genetic merit (breeding value) predictions with mixed model technologies.

The rapid developments and expansion of computer technologies, outstripping the predictions of Moor’s Law made in 1965, as well as the battery of animal geneticists involved with the expansion of Henderson’s ground work have been instrumental that BLUP breeding values have became common practice to accurately rank production (and other) animals on genetic merit as parents for a next generation of breeding animals.

Without going into too much detail, the assumptions, or lack of adherence are either overcome or, have no marked influence on the final ranking of animals for genetic merit based on BLUP breeding value predictions. • Models and application of mathematical

techniques, such as curve-fitting or modelling and minimum contemporary group size address the first assumption. This is even the case for

non-linear traits, those with uneven distribution and being expressed as a threshold character (such as calving or lambing ease, female fertility, etc.).

• The advent of the incorporation of the genomic information of individual animals into genetic merit predictions for BLUP breeding values initially focused on using a multitude of SNP markers to enhance the direct prediction ability through establishment of, so called, SNP effects and enhancing the parent average (or subsequent) BLUP breeding value predictions in an elegant blending. This has now been replaced using genomic information to establish “true” genetic relationships among all animals with known genotypes and replacing the assumed “average” values used previously. This exiting development immediately links animals correctly, those with BLUP breeding values that are very accurately predicted due to them being based on extensive progeny recordings, with young potential breeding candidates.

• Genetic parameter estimations are carried out using representative samples of the population where BLUP breeding values are employed. The best methodologies employed (such as the restricted maximum likelihood methodologies and their derivatives initially developed by Henderson) and recalculated from time to time to reflect possible changes due to selection or genetic drift.

One of the main concerns, mostly unfounded, is that a BLUP breeding value for a specific trait will not accurately predict the expected progeny differences when such progeny will have to perform in environments different to the ones where the parents or other related animals were recorded. This is mostly overcome through one or more of the following:

• Good linkages among herds and flocks by regular exchanging of males or males that are related to those used in other herd of flocks.

• BLUP models that include possible genotype by environmental interactions as adding additional (“random”) effects, such as sire by herd or “standardisation” of phenotypic (recoded) data to account for possible heterogeneity in performance of animals over contemporary groups (where there are vast differences in variation from one contemporary group to the

Continue on p. 32

Official Journal of Beefmaster SA 2020 31Martin de Waal C: 082 551 8410 T: 011 997 1500 PO Box 8100, Edenglen, 1613

G ebou op B e proe fd e G e ne t i ka

Produksieveiling 09 September 2020 Middelburg, Mpumalanga

www.riverglenwildlife.co.za


next) that might influence re-ranking of BLUP breeding values.

• Encouragement for all breeders in a breed to take part in recording, thereby covering all possible environmental effects and production systems that might influence any possibility of such re-ranking.

• Educate breeders to make sure that their production systems and management regimes are as close as possible to those of the buyers of their breeding stock.

A BLUP breeding value is simply a tool to achieve a breeding objective.

A BLUP breeding is still the most accurate tool for the job and should not be blamed when used wrongly. The latest developments for the incorporation of genomic information to enhance the accuracy of prediction even further increases the responsibility using BLUP correctly even more. Despite the deep-rooted scientific principles that BLUP breeding values are built on and the advanced technologies used for the prediction of genetic merit, any breeder and producer of animal products can easily apply it to increase production efficiency. Never use single trait selection as the correlated responses will usually result in lowering the overall productivity in future generations. Genetic merit should be linked

to economic value, by focusing on well-constructed selection indices (“Selection values”) linking genetic variances and covariances to profit-linked values.

Accurate measurements, where animals are fairly compared in contemporary groups and the keeping of accurate pedigrees are keys to success for breeders to rely on this tool. Where genomic information is used in BLUP breeding value predictions, breeders should seriously consider adding it to their arsenal to reduce the risk of decisions even more.

The Interbull sub-committee of the International Committee for Animal Recording celebrated ten years of Genomic Selection in Dairy Cattle during 2019. Although the initial uptake was slow locally, the Genomic wave is now also hitting South Africa. Local breeders should make sure that the “genomically enhanced” breeding values offered to them resulted in a BLUP evaluation based on the local population of their breed and adhered to all the conditions stipulated in this article.

When correctly done ….

BLUP is more relevant today than ever before.


Dr. Japie van der Westhuizen

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