Effect of Dietary Levels of Ammoniated Wheat Straw with Rice Bran on Rumen Metabolism in Buffaloes Sureshkumar P., Tomar S.K.*, Sengar S.S. Animal Nutrition Division, Indian Veterinary Research Institute, Izatnagar-243 122, India. *Reprint request: Dr. S.K. Tomar, Dairy Cattle Nutrition Division, National Dairy Research Institute, Karnal-132 001, India. Tel: +91-184-259080; Fax: +91-184-250042; E-mail: sktomar@ndri.hry.nic.in
Abstract Three complete diets (D1, D2, D3) containing 50, 60 and 70 per cent ammoniated wheat straw and 37, 27 and 17 per cent deoiled rice bran, respectively, alongwith molasses (10%), mineral mixture (2%) and common salt (1%) were fed to three rumen fistulated male buffaloes ad libitum in a 3 x 3 latin square design. The rumen liquor samples collected at 0, 2, 4, 6 and 8 h post-feeding were analysed for nitrogen (N) fractions, total volatile fatty acids and pH. Total N and non-protein N peaked at 6 h post-feeding, whereas trichloroacetic acid (TCA)-precipitable N and ammonia N were at peak at 8 h post-feeding. Significantly higher (P < 0.05) ammonia and TCA precipitable nitrogen were recorded in rumen liquor of the animals offered highest level of ammoniated wheat straw. Top Key words Ammoniaton, Wheat straw, Complete diets, Rumen fermentation. Top |