Effects of Bacillus subtilis on Reproductive Performance of Sows and Growth of Their Offspring during Perinatal Period

HAN Li, KONG Xiangfeng, ZHAO Yue, XIE Peifeng, GAO Qiankun, ZHANG Wenming, YIN Yulong, WANG Zhanbin

doi:10.3969/j.issn.1006-267x.2017.12.024

2017 , Vol. 29 >Issue 12: 4440 - 4446

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.12.024

Molecular Nutrition

Effects of Bacillus subtilis on Reproductive Performance of Sows and Growth of Their Offspring during Perinatal Period

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1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China;
2. Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
3. Evonik Degussa(China) Co., Ltd., Beijing 100600, China

Received date: 2017-06-30

Online published: 2017-12-04

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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 supplemented 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 parameters. 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 diarrhea 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 plasma 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.

Key words： Bacillus subtilis; pregnant sows; suckling piglets; reproductive performance; biochemical parameters

Cite this article

HAN Li, KONG Xiangfeng, ZHAO Yue, XIE Peifeng, GAO Qiankun, ZHANG Wenming, YIN Yulong, WANG Zhanbin . Effects of Bacillus subtilis on Reproductive Performance of Sows and Growth of Their Offspring during Perinatal Period[J]. Chinese Journal of Animal Nutrition, 2017 , 29(12) : 4440 -4446 . DOI: 10.3969/j.issn.1006-267x.2017.12.024

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