动物营养学报2017，Vol.29Issue(12)：4440-4446,7.DOI:10.3969/j.issn.1006-267x.2017.12.024
枯草芽孢杆菌对围产期母猪繁殖性能和子代生长的影响
Effects of Bacillus subtilis on Reproductive Performance of Sows and Growth of Their Offspring during Perinatal Period
摘要
Abstract
This study was conducted to determine the effects of Bacillus subtilis on reproductive performance of sows and growth of their offspring during perinatal period.Forty healthy Large White sows at close to 85 d of gestation during 2 to 4 parities were used and randomly allocated to 2 groups with 20 pigs per group.The sows in the control group were fed a basal diet, and others in the experiment group were fed the basal diet supple-mented with 250 g/t Bacillus subtilis preparation.The trial period was from pregnancy 85 d to postpartum 21 d. The backfat thickness of sows were measured at pregnancy 85 and 112 d and postpartum 21 d, respectively, to calculate the backfat loss;at postpartum 1 and 21 d, the blood samples of sows were collected by ear vein into heparin coated-tubes, respectively, to obtain the plasma by centrifuging for analysis of plasma biochemical pa-rameters.At postpartum 1 d, the litter size and alive litter size were recorded, as well as the litter birth weight of piglets.At postpartum 21 d, the litter weight of weaned piglets was weighed to calculate weaning daily gain per litter.The diarrhea occurrence of piglets was observed per day throughout the experiment to calculate the di-arrhea rate.The results showed that compared with the control group, dietary supplementation with Bacillus subtilis did not affect the reproductive performance of sows (P>0.05), but significantly reduced the diarrhea rate of piglets from 1 to 7 days of age and 1 to 21 days of age ( P<0.05) , and significantly increased the plas-ma immunoglobulin M ( IgM) content of sows at postpartum 21 d ( P<0.05) , as well as increased the contents of albumin ( ALB) ( P=0.087) and IgM ( P=0.096) in plasma at the postpartum 1 d and backfat thickness ( P=0.096) of sows at postpartum 21 d ( P>0.05) .Collectively, dietary supplementation with Bacillus subtilis preparation do not affect on reproductive performance of sows, but can enhance the utilization of protein and immunity of sows, and reduce diarrhea rate of piglets.关键词
芽孢杆菌/妊娠母猪/哺乳仔猪/繁殖性能/生化指标Key words
Bacillus subtilis/pregnant sows/suckling piglets/reproductive performance/biochemical param-eters分类
农业科技引用本文复制引用
韩丽,孔祥峰,赵越,解培峰,高乾坤,章文明,印遇龙,王占彬..枯草芽孢杆菌对围产期母猪繁殖性能和子代生长的影响[J].动物营养学报,2017,29(12):4440-4446,7.基金项目
国家重点研发计划课题(2017YFD0500503) （2017YFD0500503）
赢创德固赛(中国)投资有限公司横向课题 （中国）
