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Effect of concentration of the diet and crude cellulose content on energy and protein expenditure in fattening young bulls, and on the comparison of bulls and heifers


, : Effect of concentration of the diet and crude cellulose content on energy and protein expenditure in fattening young bulls, and on the comparison of bulls and heifers. Agronomski Glasnik 35(1/2): 99-114

Fattening trials lasting 5 months were made on cattle of Simmental type, 37 bulls and 68 heifers, in 8 groups. The cattle were self-fed on concentrates alone or with hay of poor or good quality. As fattening progressed energy intake increased and conversion of feed became less efficient. Provision of hay adversely affected feed conversion. Mean weight gain of heifers was 16% less than that of bulls in the first two-thirds of fattening and 28.6% less in the last third.

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