Effects of Dietary Yeast Cell Wall on Reproductive Performance, Milk Composition and Immunological Parameters of Sows

LUO Guangbo; SU Guoqi; HU Liang; LUO Yi; XUAN Yue; FANG Zhengfeng; LIN Yan; XU Shengyu; CHE Lianqiang; WU De

doi:10.3969/j.issn.1006-267x.2014.05.029

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 5: 1353 - 1361

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.05.029

Short Communications

Effects of Dietary Yeast Cell Wall on Reproductive Performance, Milk Composition and Immunological Parameters of Sows

LUO Guangbo ,
SU Guoqi ,
HU Liang ,
LUO Yi ,
XUAN Yue ,
FANG Zhengfeng ,
LIN Yan ,
XU Shengyu ,
CHE Lianqiang ,
WU De

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Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China

Received date: 2013-11-15

Online published: 2014-05-05

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Abstract

This study was carried out to evaluate the effects of dietary yeast cell wall (YCW) on reproductive performance, milk composition and immunological parameters of sows. Eighty PIC sows were allotted to two groups (40 replicates per group and 1 piglet per replicate) according to the parity (3 to 6 parities) and body condition score, receiving a basal diet (control group) and the basal diet supplemented with 0.2% YCW (YCW group), respectively. The experimental period was from the first day of gestation to parturition and lasted until the day 21 of lactation. The results showed that compared with control group, dietary YCW significantly decreased the number of stillborn piglets (P<0.05) and the occurrence rate of intrauterine growth retardation (IUGR) piglets (P=0.01); moreover, the weaning weight and weight gain of piglets tended to improve(P<0.10); accordingly, weaning litter weight and litter weight gain of piglets were improved (P=0.05); moreover, the contents of protein (P<0.05), non-fat solids (P<0.05) and lactose (P=0.01) in milk on the day 10 of lactation were significantly increased; additionally, lactose content in milk tended to be increased on the day 21 of lactation (P=0.08); the contents of immunoglobulin in both serum and colostrums at farrowing did not markedly differ among the two groups (P>0.05), but feeding YCW diet markedly down-regulated the gene expression levels of Toll-like receptor-2 and interleukin-1β in placental tissue of sows (P=0.05), while the placental gene expression of factor receptor associated factor-6 in sows tended to decrease (P=0.10). In conclusion, dietary YCW throughout gestation and lactation markedly reduces the number of stillborn piglets and the occurrence rate of IUGR piglets, which may be associated with the better placental innate immunity by YCW diet. Meanwhile, feeding YCW diet can enhance the growth performance of neonatal piglets via improving the milk composition of sows.

Key words： yeast cell wall; sow; reproductive performance; milk composition; immunity

Cite this article

LUO Guangbo , SU Guoqi , HU Liang , LUO Yi , XUAN Yue , FANG Zhengfeng , LIN Yan , XU Shengyu , CHE Lianqiang , WU De . Effects of Dietary Yeast Cell Wall on Reproductive Performance, Milk Composition and Immunological Parameters of Sows[J]. Chinese Journal of Animal Nutrition, 2014 , 26(5) : 1353 -1361 . DOI: 10.3969/j.issn.1006-267x.2014.05.029

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