Intrauterine growth restriction alters nutrient metabolism in the intestine of porcine offspring
文献类型： 外文期刊
作者： Li, Tiantian 1 ; Huang, Shimeng 1 ; Lei, Long 2 ; Tao, Shiyu 1 ; Xiong, Yi 2 ; Wu, Guoyao 1 ; Hu, Jie 1 ; Yuan, Xiongkun; 1 ;
作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, State Key Lab Anim Nutr, Beijing 100193, Peoples R China
2.Wuhan Polytechn Univ, Hubei Key Lab Anim Nutr & Feed Sci, Hubei Collaborat Innovat Ctr Anim Nutr & Feed Saf, Wuhan 430023, Peoples R China
3.Texas A&M Univ, Dept Anim Sci, College Stn, TX 77843 USA
4.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Inst Qual & Stand Agroprod, Hangzhou 310021, Peoples R China
5.Chinese Acad Agr Sci, Key Lab Agrifood Safety & Qual, Inst Qual Stand & Testing Technol Agr Prod, Minist Agr & Rural Affairs, Beijing 100081, Peoples R China
关键词： Absorption; Digestion; Fermentation; IUGR pigs; Portal vein
期刊名称：JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY （ 影响因子：5.032； 五年影响因子：5.922 ）
ISSN： 1674-9782
年卷期： 2021 年 12 卷 1 期
页码：
收录情况： SCI
摘要： Background Intrauterine growth restriction (IUGR) has negative impacts on the postnatal survival, growth and development of humans and animals, with not only on newborns but also adulthood. However, the characteristics for nutrient digestion and absorption in IUGR offspring are still largely unknown. Therefore, the normal birth weight (NBW) and IUGR growing pigs were used in this study to investigate their differences in nutrient utilization, with an expectition for further nutritional optimization of the IUGR offspring during their later life. Methods Twelve IUGR and 12 NBW growing pigs were fitted with catheters in their portal vein to measure blood flow rate as well as nutrients and metabolites in plasma. The digestibilities of nutrients in different intestinal segments, and bacterial fermentation in the large intestine were examined to reveal the characteristics of nutrients utilization in IUGR versus NBW pigs. Results The rate of portal venous blood flow did not differ beween IUGR and NBW pigs. Plasma concentrations of total cholesterol, triglycerides and glucose were much lower but those of urea were higher in the portal vein of IUGR pigs, compared with the NBW pigs. The ileal digestibility of dry matter, gross energy and starch were lower in IUGR pigs than in NBW pigs. IUGR increased hindgut microbial diversity and bacterial fermentation activity in the caecum. In vitro cross-fermentation of ileal digesta by caecal microbes of NBW and IUGR pigs showed that gas production was much higher for IUGR ileal digesta regardless of the source of caecal inocula. Conclusion IUGR impairs the nutrient digestion and absorption in small intestine, reduces caecal microbial diversity and promotes bacterial fermentation in the large intestine during the growing phase. These findings aid in our understanding of nutrient metabolism in IUGR pigs and provide the basis for future nutritional interventions.
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