Effects of Dietary Bacillus subtilis on Growth Performance and Plasma Biochemical Parameters of Nursery Piglets

DING Hao; HUANG Pan; ZHANG Wenming; HE Jianhua; KONG Xiangfeng

doi:10.3969/j.issn.1006-267x.2020.02.016

Chinese Journal of Animal Nutrition >

2020 , Vol. 32 >Issue 2: 605 - 612

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.02.016

SWINE NUTRITION AND FEED

Effects of Dietary Bacillus subtilis on Growth Performance and Plasma Biochemical Parameters of Nursery Piglets

DING Hao ,
HUANG Pan ,
ZHANG Wenming ,
HE Jianhua ,
KONG Xiangfeng

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1. College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation of Animal Production Safety, Changsha 410128, China;
2. Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolism Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
3. Evonik Degussa(China) Co., Ltd., Beijing 100600, China

Received date: 2019-07-26

Online published: 2020-02-21

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Abstract

This study was conducted to investigate the effects of dietary Bacillus subtilis on growth performance and plasma biochemical parameters of nursery piglets. A total of 64 Large White×Landrace piglets (castrated male) weaned at 21 days of age were randomly allocated to two groups with eight replicates per group and four piglets per replicate. The piglets in the control group were fed a basal diet, and the Bacillus subtilis group was fed the basal diet supplemented with 500 g/t Bacillus subtilis DSM32315. The piglets were fed a same creep feed for 7 days after weaning, and the preliminary experiment period lasted for 3 days. The experiment period lasted for 42 days. The results showed that, compared with the control group, average daily gain in Bacillus subtilis group significantly increased (P<0.05), while feed/gain significantly decreased on days 1 to 14 of the experiment (P<0.05), as well as the diarrhea rate on days 1 to 14, days 15 to 28, and days 1 to 42 of experiment (P<0.01). On day 14 of experiment, the plasma total protein (TP) content and hepatic lipase (LIPC) activity in Bacillus subtilis group significantly increased (P<0.05), while lactic dehydrogenase (LDH) activity, urea nitrogen (UN) and ammonia(NH₃) contents significantly decreased (P<0.05); on day 28 of experiment, the plasma TP content significantly increased in Bacillus subtilis group (P<0.01), and the plasma glucose (GLU) and triglyceride (TG) contents, alanine transaminase (ALT) and α-amylase (α-AMY) activity significantly increased (P<0.05), while LDH activity significantly decreased (P<0.05); on day 42 of experiment, the plasma TP, albumin (ALB), GLU, TG, and high density liptein-cholesterol(HDL-C) contents significantly increased in Bacillus subtilis group (P<0.05), while LDH activity significantly decreased (P<0.05). These findings suggest that dietary supplementation with 500 g/t Bacillus subtilis DSM32315 can alter the plasma biochemical parameters related to the metabolism of nitrogen, glucose and lipid, reduce the diarrhea rate, and promote the growth in nursery piglets.

Key words： Bacillus subtilis; nursery piglets; growth performance; diarrhea rate; plasma biochemical parameters

Cite this article

DING Hao , HUANG Pan , ZHANG Wenming , HE Jianhua , KONG Xiangfeng . Effects of Dietary Bacillus subtilis on Growth Performance and Plasma Biochemical Parameters of Nursery Piglets[J]. Chinese Journal of Animal Nutrition, 2020 , 32(2) : 605 -612 . DOI: 10.3969/j.issn.1006-267x.2020.02.016

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