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Evaluation of a technique for testing the performance of african bulls


, : Evaluation of a technique for testing the performance of african bulls. South African Journal of Animal Science 7(2): 147-148

A group of 109 African breed bulls of the Agricultural Research Institute in Glen (South Africa) were used to study growth with natural grazing and phenotypic correlations. Intensive feeding (with alfalfa additives) and a determination of weight gain were also conducted. Phenotypic correlations were calculated for various criteria by covariance analysis. The correlation coefficients were tabulated, and the weight at weaning was highly significant when related to final weight in the field, in the feeding shed and the time factor. The information obtained reveals the results on each animal of various feeding levels and permits a biological evaluation of each bull.

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