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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0941    [Accepted] Published online August 3, 2019.
Effects of early commercial milk supplement on the mucosal morphology, bacterial community and bacterial metabolites in jejunum of the pre-and post-weaning piglets
Ping Hu1, Qingyan Niu1, Yizhi Zhu1, Chao Shi1, Jing Wang1,*, Weiyun Zhu1
National Center for International Research on Animal Gut Nutrition, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, Joint International Research Laboratory of Animal Health and Food safety, National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Jiangsu Province 210095, China
Correspondence:  Jing Wang, Tel: +86-13851482337, Fax: +86-25-84395314, Email: jwang8@njau.edu.cn
Received: 11 December 2018   • Revised: 17 March 2019   • Accepted: 6 July 2019
Sow milk may not be able to meet the piglet’s nutritional needs in late lactation. Hence, this study was conducted to investigate the effects of early commercial milk supplement on the mucosal morphology, bacterial community and bacterial metabolites in jejunum of piglets.
Ten litters of newborn piglets [(Yorkshire × Landrace) × Duroc] were randomly divided into 2 groups of 5 litters. The piglets in the control group were suckled by the sow (sow milk, SM), while the piglets in the treatment group (commercial milk supplement, CM) were supplemented with a commercial milk supplement along with suckling from d 4 to d 28 of age.
No significant differences were observed about jejunal mucosal morphology on d 28 and d 35 between two groups. On d 28, the activity of lactase in the jejunum was significantly decreased in the CM group, while the activity of sucrase and the ratio of maltase to lactase were significantly increased (P < 0.05). On d 35, the activity of maltase in the jejunum was significantly increased in the CM group (P < 0.05), and maltase to lactase ratio tended to increase in the CM group (P = 0.065). In addition, piglets in the CM group had a higher abundance of Clostridium XI, Tuicibater and Moraxella in the jejunum on d 28, while the abundance of Lactobacillus was significantly increased on d 35 (P < 0.05).
The early commercial milk supplement improved the maturation of the jejunum to some extent by enhancing the maltase and sucrase activities. Moreover, the early commercial milk supplement could help maintain the homeostasis of internal environment in jejunum by increasing the microbial-derived metabolites.
Keywords: Bacterial Community; Bacterial Metabolites; Commercial Milk Supplement; Jejunum; Mucosal Morphology; Piglets

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