March 2011 for web.indd - OVK

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grazing systems will yield better performances than a conventional system. It is better to keep animals in a small camp for a day than to let them graze as they like. Pastures must not be grazed before the regrowth is 20 cm. The animals have to move from the camp when the average length of the pastures is 10 cm. This will insure that the pastures are utilized properly and not under- or over grazed. As described earlier the pastures cannot supply in the total nutritional demand of the animal. Therefore the farmer must supply some supplemental feed to ensure the best performance possible. The aim must be just to supplement and not to substitute the pastures. It is important to ensure that the supplemental feed constitute not more than 15 to 20 % of the daily intake of the animals. Because of the high rumen degradable protein content of the pastures the aim must be to supply more undegradable protein. Undegradable protein sources are cotton, soy and sunflower oilcake. It is also better to have a combination of natural protein sources rather than one source. The reason is the different sources have different amino acid content and to get the best mix of amino acids for maximum performance they must be mixed together. The energy content of pastures is very low and therefore the farmer must supply energy. The starch in the energy 40 sources are also a problem when feeding animals on pastures. The reason is that when the starch content is too high, it triggers the brain to tell the animal to stop eating grass because it feels its stomach is full, thus the intake of grass drops and also the performance. The more energy sources a farmer can use the better, because this will ensure a better utilization of the energy and will ensure a better performance. It is of utmost importance that the supplement contains all the necessary minerals and vitamins. It also must contain an ionophore to enhance the digestion of starch. To improve performance and lower cost, a feeding pro - gram must be followed. This is to ensure that the farmer does not under- or oversupply nutrients. The steers must grow at a rate of at least 500 g/day before the supple ment can be made available. Before this they must only get a normal phosphorus lick. When they grow faster than 500 g/day, the supplement must be available at 1 500 g/day/animal. The supplement must be available for at least 120 days to ensure a good growth and fat deposits. If the animal’s fat de - posits is not up to standard, then extra energy (chop) Contents can be mixed with the supplement to ensure the right • grading (A2 or A3) at slaughtering. Any system has pros and cons. The pros of veld fat ten ing are numerous, like more natural meat to the con sumer, no Inhoud
antibiotics, no feedlot, less capital needed and a lot more. Veld fattening has a few cons and the most important is the greater feed conversion (10.6:1 to feedlot 6:1). This means a lot more feed is needed to fatten a steer. The other big concern is the price the producer gets for the carcass. According to a recent study the veld fattening carcass must get a premium of R6,25/kg to compete with the feedlot carcass. Some of the abattoirs also discriminate against yellow fat that is more visible in a veld fattened carcass than a feedlot carcass. This also lowers the profit margin for the veld fatteners. If everything is taken into consideration it is still an econo mical option to fatten steers from the veld. The most im portant is to stick to the guidelines and also to get the help of a professional to help you with the pastures and the supplements you need. The market is growing for this type of meat and it is of utmost importance that the producers stick together and ensure that they can supply constantly and the same must apply for the quality of the meat. JACOBSDAL-EKSPO GAAN UITBREI Die Rietrivier-landbou-ekspo wat in 2010 die eerste keer by die T.L.-boer dery by Jacobsdal gehou is, gaan uit- 41 gebrei en ’n jaarlikse in stel ling word, sê Tjaart Erasmus, een van die organiseerders. Dit was verlede jaar reeds ’n groot sukses, maar van jaar word ’n groter geleentheid beplan met ’n vee veiling, die ekspo en ’n slaglamkompetisie. Wild- en veeboere van die omgewing gaan ook by die dag betrek word. Die demonstrasies gaan uit gebrei word. Vanjaar se ekspo gaan oor twee dae aangebied word op 28 en 29 Oktober. Dippie Dippenaar, OVK se direkteur korporatief, sê dit is vir OVK ’n voorreg om as een van die hoof borge betrokke te wees. Hy was onder andere ook deel van die span wat OVK se uitstalling van onder andere landboukundige dienste en meganisasie beman het. Van die beste landboutoerusting en nuwe tegnologie is op die ekspo uitgestal. Van die besprekings by die geleentheid was oor ’n wye reeks bedrywe in die landbou, soos aar tap pels, koring, lusern, katoen, wingerd en voer krale. Belangstellendes het die jongste inligting van kenners oor kultivars, bemesting, spuit pro gramme, waterbehoeftes, siektes, Contents • onkruid doders, veemedisyne en toerusting gekry. Goeie demonstrasies van landbou-toerusting op die lande het baie aandag getrek. Inhoud
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March 2011 for web.indd - OVK

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