动物营养学报Issue(5)：1327-1332,6.DOI:10.3969/j.issn.1006-267x.2014.05.025
酵母细胞壁和益生素对蛋鸡生产性能及免疫功能的影响
Effects of Yeast Cell Wall and Probiotics on Performance and Immunity of Laying Hens
摘要
Abstract
This study was conducted to investigate the effects of different dose combinations of yeast cell wall and probiotics on the performance and immunity of laying hens.A total of 512 Hy-Line Brown layers aged 19 weeks ( similar weight, healthy) were selected and randomly assigned into 4 groups.Layers were fed a basal diet ( control, group A) , basal diet+0.4 mg/kg yeast cell wall+50 mL/t probiotics ( group B) , basal diet+0.8 mg/kg yeast cell wall+100 mL/t probiotics ( group C) , basal diet +1.2 mg/kg yeast cell wall+150 mL/t probiotics ( group D) , respectively.Preliminary trial lasted for 1 week, and experimental period lasted for 8 weeks.The results showed as follows:1) in the whole experimental period, there were no significant differ-ences in average egg weight and daily feed intake among all groups ( P>0.05) .Compared with group A, daily egg production and laying rate of groups B, C and D were increased by 2.76%( P>0.05), 6.22%( P<0.05), 2.26%(P>0.05) and 2.83%(P>0.05), 6.19%(P<0.05) and 2.27%(P>0.05), respectively;feed/egg of groups B, C and D were decreased by 3.83%(P<0.05), 6.70%(P>0.05) and 2.87%(P>0.05) , respectively.Daily egg production and laying rate of group C was significantly higher than those of groups B and D ( P<0.05) , feed/egg was decreased by 2.99%( P>0.05) and 3.94%( P<0.05) , respective-ly.2) At the 14th and 28th day of the experiment, Newcastle antibody titers of groups B, C and D were sig-nificantly increased compared with group A ( P<0.05 or P<0.01); Newcastle antibody titer of group C was higher than that of group A, but there was no significant difference ( P>0.05) .3) At the 14th and 28th day of the experiment, lymphocyte transformation rate of groups B, C and D were significantly higher than that of group A (P<0.05 or P<0.01); lymphocyte transformation rate of group C was higher than that of groups B and D, but there was no significant difference ( P>0.05) .In conclusion,it has obvious effects of the different dose combinations of yeast cell wall and probiotics on performance and immunity of layer.It has the best effects by adding 0.8 mg/kg yeast cell wall+100 mL/t probiotics.关键词
蛋鸡/酵母细胞壁/益生素/生产性能/免疫功能Key words
layer/yeast cell wall/probiotics/performance/immunity分类
农业科技引用本文复制引用
林伯全,杨慧,王恬..酵母细胞壁和益生素对蛋鸡生产性能及免疫功能的影响[J].动物营养学报,2014,(5):1327-1332,6.基金项目
福建省创新基地配套项目（2013-JD-18）；2013年国家支撑计划 （）
