Influence of Bovine Somatotropin and Replacement of Corn Dextrose with Concentrate on the Performance of Mid-Lactating Buffaloes Fed Urea-Treated Wheat Straw

Authors : Muhammed SARWAR, Muhammed Aasif SHAHZAD

Pages : 259-265

View : 7 | Download : 4

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The study examined the effect of bovine somatotropin insert ignore into journalissuearticles values(bST); in mid-lactating Nili-Ravi buffaloes insert ignore into journalissuearticles values(n = 18); given varying levels of Enzose insert ignore into journalissuearticles values(corn dextrose); in a urea-treated wheat straw insert ignore into journalissuearticles values(UTWS); based ration on nutrient intake, digestibility, nitrogen insert ignore into journalissuearticles values(N); utilisation, milk yield, and its composition in a completely randomised design with a 2 x 3 factorial arrangement. The control ration contained 60% UTWS and 40% concentrate. The other 2 rations were formulated to replace 50% or 100% concentrate portions of the ration with Enzose of equivalent energy. Enzose is a liquid derived from the enzymatic conversion of corn starch to dextrose, and is light amber in colour. These rations were offered to buffaloes administered 0 or 250 mg bST, biweekly, for a period of 100 days. The bST administration increased insert ignore into journalissuearticles values(P < 0.05); dry matter insert ignore into journalissuearticles values(DM);, crude protein insert ignore into journalissuearticles values(CP);, nitrogen insert ignore into journalissuearticles values(N); retention, neutral detergent fibre insert ignore into journalissuearticles values(NDF);, and acid detergent fibre insert ignore into journalissuearticles values(ADF); intakes. Buffaloes fed a ration containing 50% Enzose as replaced by concentrate had higher DM, CP, NDF, and ADF intakes than those fed 100% Enzose. The NDF and ADF digestibilities, daily milk yield, and milk fat% were also increased by bST administration while the reverse was true for buffaloes fed replacement of 100% concentrate. Overall N balance was not affected either by bST administration or Enzose addition to the ration. Enzose interacted insert ignore into journalissuearticles values(P < 0.05); with bST for milk yield and milk ash contents. The bST administration in buffaloes increased milk production by 37%. Up to 50% concentrate can be replaced with Enzose in the ration.
Keywords : Bovine somatotropin, Enzose, digestion, intake, milk, nitrogen balance, buffalo