日粮中添加发酵木薯渣对蛋鸡生产性能及蛋品质的影响  

Effects of dietary supplementation with fermented cassava residues on the performance and egg quality of laying hens

作　　者：马旭东[1] 左清清[1] 孙海彦[2] 郑永清[1] 李伯松[1] MA Xudong;ZUO Qingqing;SUN Haiyan;ZHENG Yongqing;LI Bosong(Chinese Academy of Tropical Agricultural Sciences Guangzhou Experimental Station,Guangzhou 510140,China;Hainan Key Laboratory of Tropical Microbe Resources,Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China)

机构地区：[1]中国热带农业科学院广州实验站,广东广州510140 [2]中国热带农业科学院热带生物技术研究所海南省热带微生物资源重点实验室,海南海口571011

出　　处：《广东畜牧兽医科技》2022年第2期18-21,36,共5页Guangdong Journal of Animal and Veterinary Science

基　　金：广州市科技计划项目(201904010201);财政部和农业农村部:国家现代农业产业技术体系资助(CARS-11-GDLBS);中国热带农业科学院基本科研业务费专项资金(1630112020001)。

摘　　要：试验旨在探讨发酵木薯渣对海兰褐蛋鸡生产性能及蛋品质的影响。选取39周龄240只健康海兰蛋鸡,随机分成4组,每组设5个重复,每个重复12只。第1组为对照组,饲喂基础日粮,第2组、第3组、第4组为试验组,分别饲喂添加5%、10%、15%发酵木薯渣的试验饲粮。试验期28天。结果显示:(1)各组平均蛋重差异不显著;第2组与第1组生产性能指标均无显著差异(P>0.05),随着发酵木薯渣添加比例的提高,采食量与料蛋比显著提高(P<0.05),产蛋数、产蛋率和总蛋重显著降低(P<0.05);(2)发酵木薯渣对鸡蛋的蛋形指数无影响,随着添加比例的提高,蛋壳厚度显著降低(P<0.05),哈氏单位和蛋黄颜色指数显著提高(P<0.05);(3)试验期内,第2组经济效益比第1组增加7.61元。试验表明,海兰褐蛋鸡日粮中添加5%发酵木薯渣,可有效改善蛋品质,提高养殖效益。The current study aimed to investigate the effects of dietary supplementation with fermented cassava residue on the performance and egg quality of Hy-Line brown laying hens. A total of 240 healthy Hy-Line laying hens aged 39 weeks were randomly allocated to 4 groups with 5 replicates per group and 12 hens per replicate. The control group was fed with basic diet,while the experimental groups were fed diets with 5%,10% and 15% fermented cassava residue,respectively. The experiment lasted for 28 days. The results showed as follows:(1) The feed intake and feed/egg were significantly increased with the increase of the proportion of fermented cassava residue(P<0.05),while the number of egg production,laying rate,and total egg weight were significantly decreased(P<0.05).(2) The shell thickness were significantly decreased with the increase of the proportion of fermented cassava residue(P<0.05),while the haugh unit and yolk color index were significantly increased(P<0.05). However,the egg shape index had no difference among the different groups(P>0.05).(3) Compared with control group,dietary supplementation with 5%fermented cassava residue increased the economic benefits by 7.61 yuan. Overall,our results indicated that dietary supplementation with 5% fermented cassava residue in Hy-Line brown laying hens increased the egg quality and improved the breeding efficiency.

关 键 词：发酵木薯渣 蛋鸡 生产性能 蛋品质 

分 类 号：S816.6[农业科学—饲料科学]