Investigations on the influence of duodenal histidine infusion on nitrogen and amino acid turnover of growing German Holstein bulls.
作者： Aenne Schoof , M. Gabel , J. Voigt , Ulrike Schönhusen , H. Kluth
DOI: 10.1080/17450390009381954
关键词: Histidine 、 Protein intake 、 Nitrogen 、 Duodenum 、 Limiting 、 Proximal duodenum 、 Chemistry 、 Low-protein diet 、 Amino acid 、 Animal science 、 Internal medicine 、 Endocrinology
摘要: The effect of a continuous duodenal infusion L‐histidine (His) (8 g/d) on the retention nitrogen was investigated in two experiments (I, II), each which carried out using young bulls. In Exps. I and II, animals (150–250 kg BW) were fitted with re‐entrant cannula proximal duodenum fed diets containing 125 g CP/kg DM 11.5 MJ ME/kg DM. A third experiment (III) bulls (140–200 simple T‐cannula infusing 6 L‐His. low protein diet (94 11 DM). study done to find whether or not L‐His is first limiting amino acid (AA) for growing ruminants. N 28 31, 38 38, 22 24 g/d without I, II III, respectively. Both standard supply II) reduced (III), no significant differences found between periods wi...
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