Báo cáo khoa học: " Growth performance and nutrient utilization in black Bengal bucks (Capra hircus) supplemented with graded doses of chromium as chromium chloride hexahydrate"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Growth performance and nutrient utilization in black Bengal bucks (Capra hircus) supplemented with graded doses of chromium as chromium chloride hexahydrate | J. Vet. Sci. 2005 6 1 33-40 JOURNAL OF Veterinary Science Growth performance and nutrient utilization in black Bengal bucks Capra hircus supplemented with graded doses of chromium as chromium chloride hexahydrate Tarun K. Paul Sudipto Haldar Tapan K. Ghosh Department of Animal Nutrition Faculty of Veterinary and Animal Sciences West Bengal University of Animal and Fishery Sciences Kolkata 700037 India Black Bengal bucks Capra hircus were supplemented with 0 or mg elemental chromium Cr as chromium chloride hexahydrate per day for 70 days. Intake of dry matter p crude protein p and neutral detergent fiber p increased due to Cr supplementation. The apparent total tract digestibility of dry matter p organic matter p crude protein p and acid detergent fiber p improved and the total body weight gain and the live weight gain to feed intake ratio also increased p due to supplemental Cr feeding. The intake and apparent absorption p of Cr was enhanced due to its supplementation. The intake of copper zinc manganese and iron was also more p in the Cr supplemented bucks. As supplementation progressed plasma glucose concentration was elevated particularly in mg Cr supplemented bucks and a significant day x dose interaction effect p with this parameter. The activity of plasma alkaline phosphatase increased p and that of glutamate pyruvate transaminase in plasma decreased p in the Cr supplemented bucks. Supplemental Cr had minimal p effect on the plasma half life k and clearance rate of glucose T1 2 during an intravenous glucose tolerance test. Area under the response curve from 0 to 180 minutes after glucose loading was lower p in the control group of bucks. The study revealed that Cr supplementation might promote growth and nutrient utilization in black Bengal bucks. However little difference between the and mg Cr supplemented bucks suggested limited benefit of increasing the

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