Effect of nitrogen sources in diet on chemical composition and proteolytic enzyme activity in calf duodenal contents. Pt. 1. Duodenal content composition
1990
Morawiec, M. (Polska Akademia Nauk, Jablonna (Poland). Inst. Fizjologii i Zywienia Zwierzat)
An experiment on bull-calves fed only a milk replacer or milk replacer and concentrate or only concentrate diet was carried out. Urea supplement in diet did not affect the protein digestion in the abomasum and duodenum of calves. The dry matter content and dry matter non-protein N content in duodenum decreased with the calf age. The increase by 3.5 percent of amino acid content in 60 days old calf duodenum was observed
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