河南农业科学Issue(10)：133-136,4.
枯草芽孢杆菌J4制剂对肉鸡肠道酶活力及消化性能的影响
Effects of B acillus subtilis J-4 Preparation on Actirity of Digestive Enzymes in Intestinal T ract and Digestive Performance of Broiler
摘要
Abstract
In the present work ,the effects of Bacillus subtilis J-4 preparation on broilers were studied by allotting 3 000 4-day-old broilers to the test group and the control group randomly . Compared to the control group fed with basal diet ,the test group diet was added with 0 .1% J-4 preparation from 4 to 21 days .The weight gain ,feed conversion ratio ,digestive enzyme activities , and conventional organic nutrient contents were determined by taking fecal samples .The results showed that compared to the control group ,the average daily gain of broiler in the test group in-creased by 11 .99% ,feed weight ratio decreased by 11 .03% ,activities of α-amylase ,protease ,li-pase ,and cellulase in fecal samples of the test group increased by an average of 39 .82% ,31 . 56% ,44 .60% and 45 .30% ,respectively .Contents of crude protein ,starch ,crude fat ,and crude fi-ber were decreased by 39 .74% ,32 .09% ,28 .23% and 22 .62% ,respectively .After stopping feed-ing the J-4 preparation ,the grow th performance ,enzyme activities and nutrient contents of the test group gradually approached to those of the control group .This indicates that Bacillus subtilis J-4 preparation can effectively improve the activities of intestinal digestive enzymes ,the feed con-version rate and the grow th performance of broiler .关键词
枯草芽孢杆菌/肉鸡/消化酶/生产性能Key words
Bacillus subtilis/broiler/digestive enzymes/grow th performance分类
农业科技引用本文复制引用
刘涛,张冬冬,姜军坡,朱宝成,王世英..枯草芽孢杆菌J4制剂对肉鸡肠道酶活力及消化性能的影响[J].河南农业科学,2013,(10):133-136,4.基金项目
国家星火计划项目（2010GA105010）；石家庄市科学技术研究与发展计划项目 （）
