摘要
试验旨在研究复合益生菌发酵全价料对Z型鸭生长性能、屠宰性能和各脏器指数、血清生化指标及营养物质表观消化率的影响。采用单因素试验设计,选择1日龄公雏鸭480只,随机分为4组,每组6个重复,每个重复20只。对照组饲喂基础日粮,试验组(试验Ⅰ组、Ⅱ组、Ⅲ组)分别用复合益生菌发酵全价料替代干物质的7%、14%、21%的基础日粮进行饲喂,预饲期3 d,正试期40 d。结果表明:与对照组相比,全期平均日增重各组间差异不显著(P>0.05),料重比Ⅱ组和Ⅲ组极显著下降(P<0.01);LDL-C含量试验Ⅱ组极显著下降(P<0.01),Ⅲ组呈显著下降(P<0.05);TG、AST含量试验组极显著下降(P<0.01);UA含量试验Ⅱ组和Ⅲ组极显著降低(P<0.01);血清GH、INS和IGF-1含量试验组均极显著高于对照组(P<0.01);试验组粗蛋白和淀粉的表观消化率均显著高于对照组(P<0.05)。日饲喂成本分别下降了12.90%、9.68%和8.06%,增重收益分别增加了16.13%、22.58%和12.90%。综合分析,Z型鸭日粮中添加14%复合益生菌发酵全价料可促进营养物质消化吸收,降低养殖成本,提高养殖经济效益。
The study was conducted to investigate the effects of compound probiotics fermented complete feed on growth performance,slaughter performance and organ indices,serum biochemical indices and apparent digestibility of nutrients of Z-Type ducks.The total of 480(1 days of age) Z-Type drakes were randomly divided into four groups,with six replicates per group(20 drakes per replicate).Basic diet was fed the control group ducks,the air-ary basis fermentation of complete feed(7%-14% and 21%) and basic diet were mixed to feed experimental groups ducks.The experiment period lasted for 43 d that including the pre-feeding period was 3 d and the formal test period was 40 d.Results showed as the followings:Compared with the control group,the ADG of the whole experimental period were no significantly differences among the groups(P>0.05),the F/G were significantly decreased in the groups Ⅱ and Ⅲ(P<0.01).The levels of LDL-C were significantly decreased in the serum of groups Ⅱ(P<0.01) and Ⅲ(P<0.05).The TG concentration and AST concentration of serum in groups Ⅰ,Ⅱ andⅢ were significantly decreased(P<0.01).The concentration of serum UA in groups Ⅱ and Ⅲ was significantly decreased(P<0.01).The serum concentration of GH,INS and IGF-1 were greater in groups Ⅰ,Ⅱ and Ⅲ than that in the control group(P<0.01).The apparent digestibility of protein and starch were significantly greater in groups Ⅰ,Ⅱ and Ⅲ than that in the control group(P<0.05),and the cost of daily feeding decreased by 12.90%,9.68% and 8.06%,revenue increased by 16.13%,22.58% and 12.90%,respectively.The results of this study provided evidence for adding 14% compound probiotics fermented complete feed to the Z-type ducks could promote the digestion and absorption of nutrients,reduce the breeding cost and improve the economic benefits of breeding.
作者
刘泽
郭云霞
郭晓军
杨会英
赵婷婷
张昭
张月肖
郝庆红
LIU Ze;GUO Yunxia;GUO Xiaojun;YANG Huiying;ZHAO Tingting;ZHANG Zhao;ZHANG Yuexiao;HAO Qinghong(Hebei Agricultural University,Hebei Baoding 071001,China;Baoding Animal Husbandry Workstation,Hebei Baoding 071051,China;Agricultural and Rural Bureau of Wuqiang County,Hebei Hengshui 053000,China;Wuqiang Bairun Co.,Ltd.,Hebei Hengshui 053000,China)
出处
《饲料工业》
CAS
北大核心
2021年第15期57-64,共8页
Feed Industry
基金
河北省自然基金项目[C2019204284]
河北省现代农业产业技术体系[HBCT2018140203]。
关键词
发酵全价料
肉鸭
生长性能
血清生化指标
表观消化率
fermented complete feed
Z-type duck
growth performance
serum biochemical indices
ap⁃parent digestibility
