不同硒水平对淮南麻鸭生长性能及屠体性状的影响  

Effects of Different Selenium Levels on Growth Performance and Carcass Characteristics of Huainan Duck

作　　者：李建柱 唐雪峰[1] 赵云焕[1] 陈敏[1] 曲哲会[1] 赵聘[1] 

机构地区：[1]信阳农林学院牧医工程学院,河南信阳464000

出　　处：《河南农业科学》2015年第11期133-136,共4页Journal of Henan Agricultural Sciences

基　　金：河南省科技攻关项目(112102110061);河南省科技成果转化计划(农业)项目(142201110022);信阳农林学院青年教师科研基金项目(201201002)

摘　　要：为研究不同硒水平对淮南麻鸭生长性能及屠体性状的影响,选择144只1日龄健康且体质量相近的淮南麻鸭,随机分为4组,每组6个重复,每个重复6只鸭。Ⅰ组为对照组,饲喂基础饲粮;Ⅱ、Ⅲ、Ⅳ组为试验组,分别饲喂添加0.1、0.2、0.3 mg/kg亚硒酸钠的基础饲粮,试验期9周。结果表明:与Ⅰ组相比,Ⅱ、Ⅲ、Ⅳ组9周龄淮南麻鸭的体质量分别极显著提高了6.39%、12.21%、7.34%,Ⅱ、Ⅲ、Ⅳ组的日增质量比Ⅰ组极显著提高了6.41%、12.23%、7.35%,但Ⅱ组与Ⅳ组之间差异不显著;与Ⅰ组相比,Ⅱ、Ⅲ、Ⅳ组的料重比分别极显著降低了5.97%、11.64%、6.92%,且Ⅲ组料重比最低;Ⅱ、Ⅲ、Ⅳ组的采食量与Ⅰ组之间差异不显著;Ⅱ、Ⅲ组死淘率较Ⅰ组降低,但差异不显著;与Ⅰ组相比,Ⅲ组屠宰率、半净膛率和全净膛率分别显著升高1.50%、0.88%、1.66%。综上,在饲粮中添加0.2 mg/kg的亚硒酸钠效果最佳。To investigate the effects of different levels of selenium on growth performance and carcass characteristics,a total of 144 one-day-old healthy Huainan ducks with similar body weight were randomly allotted into 4 groups with 6 replicates of 6 ducks each. For 9 weeks,the groups were fed with basal diet supplemented with sodium selenite of 0 mg / kg（ group Ⅰ）,0. 1 mg / kg（ group Ⅱ）,0. 2 mg / kg（ groupⅢ）,0. 3mg /kg（ group Ⅳ）,respectively. The results indicated that compared with the group I,the growth in group Ⅱ,Ⅲ,Ⅳ increased by 6. 39%（ P〈0. 01）,12. 21%（ P〈0. 01） and 7. 34%（ P〈0. 01）. The average daily gain significantly increased by 6. 41%,12. 23%,7. 35% in group Ⅱ,Ⅲ,Ⅳ（ P〈0. 01）,however,there was no difference between group Ⅱ and group Ⅳ（ P〈0. 05）. Compared with group I,the feed conversion ratio（ FCR） decreased extremely significantly by 5. 97%,11. 64% and 6. 92%（ P〈0. 01）in group Ⅱ,Ⅲ,Ⅳ,and the FCR of group Ⅲ was the lowest. There were no difference on the daily intake among the four groups. The mortality decreased insignificantly in group Ⅱ,Ⅲ compared with group I. The slaughter rate,the percentage of half-eviscerated weight,percentage of eviscerated weight of the ducks significantly increased by 1. 50%,0. 88%,1. 66% in group Ⅲ compared with group I（ P〈0. 05）. Theseresults indicated that diets supplemented with sodium selenite could inprove growth performance in Huainan ducks,the appropriate dose of which was 0. 2 mg / kg.

关 键 词：亚硒酸钠 淮南麻鸭 生长性能 屠体性状 

分 类 号：S816.7[农业科学—饲料科学]