发酵饲料和单宁对产蛋鸭产蛋性能、蛋品质、血清免疫及抗氧化指标的影响  

Effects of Fermented Feed and Tannin on Egg-Laying Performance, Egg Quality, Serum Immunity and Antioxidant Indexes of Laying Ducks

作　　者：任善茂[1] 许婷 陶勇[1] 杨晓志[1] 曹云[1] 袁燕[2] 王健[1] REN Shanmao;XU Ting;TAO Yong;YANG Xiaozhi;CAO Yun;YUAN Yan;WANG Jian(Jiangsu Agri-Animal Husbandry Vocational College,Taizhou 225300,Jiangsu,China;College of Veterinary Medicine,Yangzhou University,Yangzhou 225009,Jiangsu,China)

机构地区：[1]江苏农牧科技职业学院,江苏泰州225300 [2]扬州大学兽医学院,江苏扬州225009

出　　处：《四川农业大学学报》2022年第5期696-706,共11页Journal of Sichuan Agricultural University

基　　金：江苏省农业科技自主创新资金项目(CX(18)1004);泰州市科技支撑计划(农业)项目(TN201918)。

摘　　要：【目的】旨在研究发酵饲料和单宁对产蛋鸭产蛋性能、蛋品质、血清免疫及抗氧化指标的影响。【方法】采用2×2二因素试验设计,选取52周龄体重相近的产蛋高峰期苏邮2号健康产蛋鸭600只随机分为4组(每组5个重复,每个重复30只):对照组饲喂基础饲粮,各试验组分别饲喂添加5%发酵饲料、2 g/kg单宁、5%发酵饲料+2g/kg单宁的试验饲粮。正试期28 d。【结果】(1)5%发酵饲料显著提高了产蛋鸭平均日采食量(P<0.05);发酵饲料、单宁在产蛋鸭采食量上有显著的互作(P<0.05),发酵饲料和单宁复合添加组产蛋鸭的采食量最高(P<0.05)。(2)试验第2周,5%发酵饲料改善了蛋壳强度(P<0.05);2 g/kg的单宁降低了蛋黄重(P<0.05);发酵饲料、单宁在蛋壳强度、蛋白高度、哈夫单位和蛋壳相对重上均存在显著的互作(P<0.05)。复合添加组蛋壳强度、蛋白高度和哈夫单位均显著小于发酵饲料组(P<0.05);单宁组蛋壳强度和蛋壳相对重均大于对照组(P<0.05);发酵饲料组蛋壳强度大于对照组(P<0.05)。试验第4周,5%发酵饲料增加了鸭蛋蛋壳强度(P<0.05),2 g/kg单宁提高了蛋壳相对重(P<0.05)。(3)2 g/kg单宁显著升高了血清总蛋白、尿素氮及铁的含量(P<0.05)。5%发酵饲料显著降低了血清T-SOD含量(P<0.05)。【结论】由此可见,产蛋鸭日粮中添加发酵饲料有利于提高采食量、改善蛋壳强度、但不利于抗氧化能力改善。添加单宁提高了体内的脱氨作用,但对蛋品质的影响与其作用持续时间有关。两者联合使用有助于提高产蛋鸭的采食量。[Objective] This experiment was conducted to investigate the effects of fermented feed and tannin on the production performance,egg quality,serum immune and antioxidant indexes of laying ducks.[Method] A 2×2 two-factor experimental design was performed.Six hundred healthy ducks of Suyou No.2 during peak laying period with similar body weights at the age of 52 weeks were selected and randomly divided into 4 groups(5 repetitions in each group,30 per repetition).The control group was fed with basic diet,and the test groups were fed with 5% fermented feed,2 g/kg tannin,5% fermented feed+2 g/kg tannin,respectively.The trial lasted for 28 days.[Result]①Adding 5% of fermented feed significantly increased the feed intake of laying ducks. There was a significant interaction between fermented feed and tannin on the feed intake of laying ducks(P<0.05), and the combined addition of fermented feed and tannin had the highest feed intake(P<0.05).②In the second week of the experiment,adding 5% fermented feed improved eggshell strength(P<0.05);adding 2 g/kg tannin reduced egg yolk weight(P<0.05);there were significant interactions between fermented feed and tannin on eggshell strength,albumen height,Huff unit and relative eggshell weight(P<0.05).The eggshell strength,albumen height and Huff unit of the compound supplement group were significantly lower than that of the fermented feed group(P<0.05);the eggshell strength and relative eggshell weight of the tannin group were higher than that of the control group(P<0.05);the shell strength of the eggs in the fermented feed group was greater than that of the control group(P<0.05).In the fourth week of the experiment, adding 5% fermented feed increased the eggshell strength of duck eggs(P<0.05), and 2 g/kg tannin increased the relative eggshell weight(P<0.05).③Adding 2 g/kg tannin significantly increased serum total protein,urea nitrogen and iron content(P<0.05).Adding 5% fermented diet significantly decreased serum T-SOD content(P<0.05).[Conclusion] It is concluded that the add

关 键 词：发酵饲料 单宁 产蛋鸭 生产性能 蛋品质 免疫 抗氧化 

分 类 号：S834.5[农业科学—畜牧学]