摘要
该试验旨在研究酿酒酵母培养物对哺乳母猪繁殖性能、仔猪生长性能及免疫力的影响。试验选取2~4胎健康妊娠后期长白×大白二元母猪20头,随机分为4组,分别为饲喂玉米-豆粕型基础日粮(对照组),5%酿酒酵母培养物日粮组(5%YC),10%酿酒酵母培养物日粮组(10%YC)和15%酿酒酵母培养物日粮组(15%YC)。结果表明:(1)各组母猪产后7 d采食量差异不显著。(2)与对照组相比,5%YC添加组窝产活仔数和初产窝质量显著增加(P<0.05),5%YC和15%YC添加组的断奶窝重显著提高(P<0.05),但试验组断奶体重和断奶成活率与对照组相比差异不显著(P>0.05)。(3)5%YC、10%YC添加组中仔猪血液总蛋白含量和碱性磷酸酶、乳酸脱氢酶的活性显著高于对照组(P<0.05)。与对照组相比,15%YC添加组中仔猪血液中碱性磷酸酶的活性显著增加(P<0.05),5%YC添加组中仔猪血液球蛋白含量显著提高(P<0.05)。(4)母猪日粮添加5%、10%、15%YC可显著提高仔猪血清中IgG和IgM水平(P<0.05)。由此可见,该试验条件下,哺乳母猪日粮中添加酿酒酵母培养物有利于提高母猪繁殖性能及仔猪生长性能,增强仔猪免疫力。
This experiment aimed to study the effect of yeast culture on the reproductive performance of lactating sows,growth performance of piglets and immunity.The experiment selected 20 Landrace×Yorkshire binary sows in the late gestation period and randomly divided them into 4 groups,which were fed corn-soybean meal basal diet(control group),5%Yeast Culture diet group(5%YC),and 10%Yeast Culture diet group(10%YC)and 15%Yeast Culture diet group(15%YC).The results show that:(1)there was no significant difference in the feed intake of the sows in each group at 7 d postpartum.(2)Compared with the control group,alive litter size and litter birth weight of piglets in the 5%YC supplementation group increased significantly(P<0.05),and the weaning litter weight in the 5%YC and 15%YC addition groups increased significantly(P<0.05),but the test group's weaning weight and weaning survival rate were not significantly different from those of the control group(P>0.05).(3)The blood TP content and ALP and LDH activities of piglets in the 5%YC and 10%YC supplementation group were significantly higher than those in the control group(P<0.05).Compared with the control group,the ALP activity in the blood of piglets in the 15%YC supplementation group was significantly increased(P<0.05),and the GLB content in the blood of piglets in the 5%YC supplementation group was significantly increased(P<0.05).(4)Supplementing 5%,10%,15%YC in the sow's diet can significantly increase the levels of IgG and IgM in the piglet's serum(P<0.05).Under the conditions of this experiment,adding yeast culture to the diet of lactating sows is beneficial to improve the reproductive performance of sows and growth performance of piglets,and enhance the immunity of piglets.
作者
罗强
李宁
郑梓
刘仲昊
周定方
闫峻
LUO Qiang;LI Ning;ZHENG Zi;LIU Zhonghao;ZHOU Dingfang;YAN Jun(Institute of Animal Husbandry and Veterinary Medicine,Tianjin Academy of Agricultural Sciences,Tianjin 300381,China;College of Animal Science and Technology,Northwest A&F University,Yangling 712100,China;College of Animal Science and Veterinary Medicine,Tianjin Agricultural University,Tianjin 300384,China;Jiangsu Gaosheng Biological Feed Co.,Ltd.,Siyang,Jiangsu 223700,China)
出处
《家畜生态学报》
北大核心
2021年第12期67-72,共6页
Journal of Domestic Animal Ecology
基金
天津市自然科学基金(18JCQNJC15100)
天津市生猪产业技术体系创新团队(IT-TPRS2021005)
天津市“131”创新型人才团队(20180338)
天津市种业科技专项(19ZXZYSN00120)。
关键词
酿酒酵母培养物
哺乳母猪
仔猪
繁殖性能
采食量
免疫
yeast culture
lactating sows
piglets
reproductive performance
feed intake
immunity
