枯草芽孢杆菌对围产期母猪繁殖性能和子代生长的影响

发布时间：2018-02-01 11:26

本文关键词： 芽孢杆菌妊娠母猪哺乳仔猪繁殖性能生化指标　出处：《动物营养学报》2017年12期 　论文类型：期刊论文

【摘要】：试验旨在研究枯草芽孢杆菌对围产期母猪繁殖性能和子代生长的影响。试验选用2~4胎次、预产期相近的妊娠85 d的健康大白猪40头,随机分为2组,每组20头。对照组饲喂基础饲粮,试验组在基础饲粮中添加250 g/t的枯草芽孢杆菌制剂。试验期为妊娠85 d至产后21 d。分别于母猪妊娠85、112 d和产后21 d测量母猪背膘厚并计算背膘损失。于产后1和21 d耳缘静脉采血,肝素抗凝,离心分离血浆,测定血浆生化指标。于产后1 d记录母猪的产仔数和产活仔数,并称取仔猪出生窝重。于产后21 d称取仔猪断奶窝重并计算断奶窝日增重;每天观察并记录每窝仔猪腹泻情况,计算腹泻率。结果表明:与对照组相比,饲粮添加枯草芽孢杆菌制剂对母猪繁殖性能无显著影响(P0.05),但显著降低了仔猪1~7日龄和1~21日龄腹泻率(P0.05),显著增加了产后21 d母猪血浆免疫球蛋白M(Ig M)含量(P0.05),且产后1 d母猪血浆白蛋白(P=0.087)和Ig M(P=0.096)含量以及产后21 d背膘厚(P=0.096)均呈增加趋势。综上所述,饲粮添加枯草芽孢杆菌制剂虽然不影响母猪繁殖性能,但可增强机体对蛋白质的利用和免疫力,降低仔猪腹泻率。
[Abstract]:The purpose of the experiment was to study the effect of Bacillus subtilis on reproductive performance and progeny growth of perinatal sows. Forty healthy white pigs with a similar gestational period of 85 days were randomly divided into two groups. The control group was fed with basic diet. In the trial group, 250 g / t Bacillus subtilis preparation was added to the basal diet. The trial period was 85 days from pregnancy to 21 days postpartum. The backfat thickness of sows was measured on the 112th day and the 21st day postpartum, and the backfat loss was calculated. The blood was collected from the auricular vein on the 1st and 21st day postpartum, the heparin was anticoagulant and the plasma was separated by centrifugation. The plasma biochemical indexes were measured. The litter size and live litter size of sows were recorded on the first day of postpartum, and the birth litter weight of piglets was measured. The weaning litter weight of piglets was measured at 21 days postpartum and the daily gain of weaning litter was calculated. The diarrhea rate of each litter of piglets was observed and recorded every day. The results showed that the diet supplemented with Bacillus subtilis preparation had no significant effect on the reproductive performance of sows compared with the control group (P 0.05). However, the diarrhea rate of piglets at the age of 7 days and 21 days after delivery was significantly decreased, and the content of plasma immunoglobulin Ig M was significantly increased at 21 days postpartum (P 0.05). The contents of plasma albumin (P0. 087) and Ig MU (0. 096) and backfat thickness (P0. 096) of sows on day 1 postpartum increased. Although the diet supplemented with Bacillus subtilis preparation did not affect the reproductive performance of sows, it could enhance the body's utilization of protein and immunity, and reduce the diarrhea rate of piglets.
【作者单位】：河南科技大学动物科技学院;中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室;赢创德固赛(中国)投资有限公司;
【基金】：国家重点研发计划课题(2017YFD0500503) 赢创德固赛(中国)投资有限公司横向课题
【分类号】：S828.5
【正文快照】： 母猪生产是生猪养殖中的关键环节,其健康状况和繁殖性能是影响养猪场经济效益的重要因素[1]。但随着集约化水平的提高,目前的母猪生产存在繁殖性能低下、产后乳质差或无乳、乏情、母猪炎症、抵抗力下降、采食量降低、使用年限缩短等问题,还间接引起仔猪初生重和断奶重低、腹泻

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