草业学报Issue(5)：134-140,7.DOI:10.11686/cyxb20150516
杂交狼尾草青贮饲喂肉猪效果研究
Effects of feeding hybrid Pennisetum silage on commercial hog production
摘要
Abstract
This study investigated silage quality and its feeding effect on market pigs by adding enzymes prepa-rations to hybrid Pennisetum silage.150 Duroc-Landrace-Yorkshire pigs (100 days old,50 kg body weight) were divided into five groups (a control group and four experimental groups I-IV).Each group had three rep-licates of 10 pigs.Pigs in the control group were fed only a basal diet,while pigs in the experimental groups were fed as follows:(1 )I was fed basal diet+wheat bran+hybrid Pennisetum silage;(2)Ⅱ was fed basal diet+wheat bran+hybrid Pennisetum silage treated by cellulose;(3)Ⅲ was fed basal diet+wheat bran+hy-brid Pennisetum silage treated by cellulose bacterium fluid;and (4)Ⅳ was fed basal diet+wheat bran+hybrid Pennisetum silage treated by Lactobacillus .The results revealed no significant differences between the control and four experimental groups in average daily weight gain.However,the experimental groups I,Ⅱ,Ⅲ and Ⅳ showed respectively 2.3%,8.6%,4.4% and 2.2% higher absolute average daily gains than the control group. The concentrated feed conversion ratios were respectively 9.7%,14.9%,11.4% and 9.5% less in the four ex-perimental groups compared with the control,which accounted for economic benefit increases in the order of 11.3%,36.0%,21.6% and 14.0% respectively.Results also indicated that feeding silage can reduce the length and weight of the small intestine,while increasing back fat thickness,meat color,and the weight of flare fat and stomach,and having no effect on the weight of the large intestine.The results thus indicate that cellulose-decomposing micro-organisms can improve silage quality,with the increased feeding value for pigs bringing economic benefits.关键词
杂交狼尾草/肉猪/酶制剂/青贮Key words
Pennisetum americanum ×P .purpureum/commercial hog production/enzymes preparation/silage引用本文复制引用
黄勤楼,黄秀声,黄水珍,冯德庆,钟珍梅,陈钟佃..杂交狼尾草青贮饲喂肉猪效果研究[J].草业学报,2015,(5):134-140,7.基金项目
“十二五”国家科技支撑计划项目（2011BAD17B02-06，2012BAD14B15），福建省自然基金（2013J01105），福建省发改委五新项目和福建省农业科学院科技创新团队（CXTD-1-05）资助。 （）
