RESPON SUPLEMENTASI MINERAL TERHADAP SINTESIS PROTEIN MIKROBA PADA TERNAK SAPI LOKAL DI SUMATERA BARAT

Maramis , Maramis and Evitayani, Evitayani (2009) RESPON SUPLEMENTASI MINERAL TERHADAP SINTESIS PROTEIN MIKROBA PADA TERNAK SAPI LOKAL DI SUMATERA BARAT. Working Paper. Pascasarjana Unand. (Unpublished)

Microsoft Word (RESPON SUPLEMENTASI MINERAL TERHADAP SINTESIS PROTEIN MIKROBA PADA TERNAK SAPI LOKAL DI SUMATERA BARAT) - Supplemental Material Available under License Creative Commons Public Domain Dedication. Download (6Mb)

Abstract

An experiment was carried out to evaluate the effect of Ca, P, Mg and S supplementation on digestibility and characteristics of rumen fluid. In the present experiment, the highest quality of ammoniated-rice straw as assesed by in vitro methods in the previous experiment, was combined with various levels concentrate . The concentrate consisted of 25% rice bran, 8% cassava waste, 5 % tofu waste dan 2 % blood meal and 60% rice straw. For experimental rations were allocated according to completely randomized design, its treatment was replicated in four replications. One rumen cannulated cattle has been used as source as rumen fluid for in vitro digestion trials. The following experimental diets : 60% ammoniated-rice straw + 40 concentrate (ration A); 60% ammoniated-rice straw + 40 concentrate and Ca, P suplementation (ration B), 60% ammoniated-rice straw + 40 concentrateand Ca, P, Mg suplementation (ration C) 60% ammoniated-rice straw + 40 concentrate and Ca, P, Mg and S Supplementation (ration D). Objective of the present experiment was to find the best the combination of mineral suplementation consist it Ca, P, Mg and S of rice straw. The result showed that ratio of ammoniated rice straw and concentrate in ration significantly (p<0.05) affect the digestibility of nutrients. Digestibility of dry matter, organic matter, crude protein, NDF and ADF were significantly higher (P<0.05) in ration D than those A, B and C rations. However, the characteristiks of ruminal condition were not significantly affected by any treatment rations, in which the ruminal pH, concentrations of ruminal NH3-N and total VFA were almost constant for all the treatment rations. The concentrations of NH3-N ranged from 7.77-8.88 mg/100ml, total VFA from 56.13-80.43 mM and ruminal pH ranged from 7.23-7.56. From these results it could be concluded that ration D of ammoniated rice straw and concentrate in the ration with supplemmentation of Ca, P, Mg and S affected nutrient digestibility and characteristics of ruminal condition. Key Words : mineral supplementation, rumen fluid, digestibility

Actions (login required)

View Item