Effectiveness of the use of the Vytelle system in evaluating bulls in Kazakhstan
Eficácia da utilização do sistema Vytelle na avaliação de touros no Cazaquistão
Kazhgaliyev N. Issabekova S. Shaikenova K. Senkebayeva D. Omarova K. Makhanbetova A.
2023Instituto Internacional de Ecologia
Brazilian Journal of Biology
2023#83
This article presents the results of the introduction of Canadian digital technologies Vytelle GrowSafe in the beef cattle breeding of Kazakhstan to assess Residual Feed Intake (RFI). The experiments were carried out with Qazaq Aqbas Breed in the Privet Farms of North Kazakhstan (Akmola and Pavlodar farms). As part of the ration in Akmola farm for a bull of 350 kg of weight, are contained 77 MJ or 7.6 kg of DM, in Pavlodar farm for a bull weighing 290 kg contains 65 MJ or 6.5 kg of DM. Studies have shown that in the Akmola farm the RFI index ranged from-2.08 to +2.88, in the Pavlodar farm from-1.89 to +2.06. According to the results of research in the Akmola farm, the RFI assessment show, 7 out of 26 bulls are suitable for breeding sale, in the Pavlodar farm out of 55 bulls 18. The assessment of the productive effect of feed on RFI, mainly (by 80%), coincided with the assessment of the ratio of gain to consumed dry matter, and some bulls showed deviations in terms of residual average daily live weight gain and the corrected value of the ratio of feed costs to live weight gain, which led to incomplete manifestation of the productive potential of the consumed feed.
beef cattle breeding , GrowSafe , Qazaq Aqbas breed , residual feed intake , Vytelle , weight , welfare
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S. Seifullin Kazakh Agrotechnical University, Department of Technologies of Production and Processing of Livestock Products, Astana, Kazakhstan
S. Seifullin Kazakh Agrotechnical University
10 лет помогаем публиковать статьи Международный издатель
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