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Title

EFFECT OF STARCH REPLACEMENT WITH SOLUBLE FIBER ON FEED DIGESTIBILITY AND CARCASS CHARACTERISTICS OF LAMBS FED HIGH CONCENTRATE DIET AND GAS PRODUCTION OF LOW QUALITY FORAGE SOURCES

Pages

 Start Page 47 | End Page 64

Abstract

 In order to investigate effects of partial replacement of starch with neutral detergent soluble fiber (NDSF), 16 lambs were used in completely randomized design. The length of the experiment was 90 days. Dietary treatments were 1- Control (without beet pulp), 2-18% beet pulp, 3-36% beet pulp and 4-54% beet pulp (high soluble fiber). Dry matter and Organic matter DIGESTIBILITY was highest in treatment 1 and lowest in treatment 4. NDF and ADF DIGESTIBILITY significantly increased with increasing amount of beet pulp in the diet. Rumen ammonia nitrogen decreased significantly with increasing level of beet pulp in the diet. Highest and lowest hot carcass weight observed in treatment 1 and 4 respectively. Treatment 3 and 1 showed highest full and empty rumen weight respectively. Total carcass fat decreased with increasing level of beet pulp in the diet. Potential GAS PRODUCTION was the same between treatments but the rate of GAS PRODUCTION between straw and sugar cane pith were different. The results of this study indicate that partial replacement of starch with neutral detergent soluble fiber from beet pulp to 36% of ration dry matter could improve fiber DIGESTIBILITY and reduce rumen ammonia nitrogen concentration but inclusion of 54% beet pulp in the diet could not support growth like the high starch diet.

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