数字农科院2.0

Live Yeast Supplementation in Gestating and Lactating Primiparous Sows Improves Immune Response in Dams and Their Progeny

文献类型： 外文期刊

作者： Xia, Tian;Yin, Chenggang;Comi, Marcello;Agazzi, Alessandro;Perricone, Vera;Li, Xilong;Jiang, Xianren

作者机构：

关键词： live yeast;primiparous sows;weaning piglets;immunity

期刊名称： ANIMALS

ISSN： 2076-2615

年卷期： 2022 年 12 卷 10 期

页码：

收录情况： SCIE（2022版）

摘要： Simple Summary Primiparous sows are usually associated with poor lactation performance and low weaning weight piglets. Live yeast (LY) supplementation in gestation and lactation diets have been shown to improve sow health status, milk composition, and growth performance of suckling piglets. However, little is known about the carryover effects of LY supplementation during gestation and lactation on primiparous sows and their offspring. In the present study, LY supplementation significantly increased the serum concentrations of IgA and IgG of sows at farrowing and weaning stages, and of piglets at post-weaning on day 14 and 28. These results suggest that LY addition in the diets of gestating and lactating primiparous sows might improve the maternal and progeny health by increasing the immunity of sows and their offspring. The present study determined the effects of live yeast (LY) supplementation during middle-late gestation and the lactation period in primiparous sows on reproductive parameters, lactation performance, and immunity, and also explores the carryover effects in their offspring. On day (d) 60 of gestation, 16 crossbred primiparous sows were randomly assigned to two dietary treatments (with or without supplementation of 425 mg/kg of live yeast; LYT and CT, respectively) homogeneous for body weight (BW) and backfat thickness. Experimental diets were applied from day 60 of gestation to the end of lactation. At weaning, 60 piglets with an average BW of each treatment were selected based on their source litter and assigned to two groups corresponding to the original treatments received by their mothers. Each group had five replicates of six piglets each and was fed a basal diet for 42 days. The results showed that LY supplementation significantly increased the serum IgA and IgG concentrations of sows at farrowing and weaning stages, and of piglets on day 14 and 28 post weaning. No significant differences were found in reproductive and lactation performance, while minor effects were observed on antioxidant capacity. In conclusion, live yeast addition during middle-late gestation and the whole lactation period resulted in enhanced immunity of primiparous sows and their offspring, therefore, improving maternal and progeny health.

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