Effect of Raw Material for Distillers Grains Production on Protein Quality for Ruminants
Effect of Raw Material for Distillers Grains Production on Protein Quality for Ruminants作者机构：Animal Production Research Centre Nitra Institute for Nutrition Lu2ianky 95141 Slovak Republic
出 版 物：《Journal of Life Sciences》 (生命科学（英文版）)
年 卷 期：2011年第5卷第10期
页 面：814-820页
学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 08[工学] 09[农学] 083203[工学-农产品加工及贮藏工程]
主 题：DDGS crude protein amino acids in situ degradability intestinal digestibility.
摘 要：The present experiment was focused on quality of dry distillers＇ grains with solubles （DDGS） produced from corn （DDGSc）, wheat （DDGSw）, triticale （DDGSt）, and wet distillers grains from corn （WDGc） for ruminants. The products were tested for dry matter （DM）, crude protein （CP）, neutral detergent fibre （NDF）, acid detergent fibre （ADF） acid detergent insoluble nitrogen （NIAD）, amino acid （AA） profile, CP degradability and intestinal digestibility （ID） of rumen undegraded protein （RUP）. The average content of CP （g/kg DM） ranged from 289.9 （DDGSc） to 356.9 （DDGSw）. The highest content of essential AA was in WDGc （440.1 g/160g N） followed with DDGSc. The most variable was the content of Lys in DDGSw （from 13.69 to 22.79 g/160 g N）. The NIAD was found the highest for DDGSw （from 16.8% to 36.2%）, effective CP degradability was only 50.2% and ID of RUP 82.2%, total essential AA 81.2%, Lys 77.69% and Met 81.4%. Lys was generally the least digestible AA. The ruminally degradable CP fraction was in the range from 52.6% to 70.2% for DDGSc. ID of total and essential by-pass AA was very high 96.2% and 96.1%, Lysine 90.9% and Methionine 96.7%. From these data it can be concluded that DDGS from grains are a good source of protein for ruminants.
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