Effects of Dietary Addition of Tiger Nut or Tiger Nut Meal on Reproductive Performance,Serum Immune Indexes and Fecal Microbial Composition of Sows in Late Pregnancy
The aim of this experiment was to investigate the effects of dietary addition of tiger nut or tiger nut meal on reproductive performance,serum immune indexes,placental activity factors,fecal short-chain fatty acid contents and fecal microbial composition of sows in late gestation.In this experiment,70 primiparous ges-tating sows with the same litter size,body condition and gestation period were selected and randomly divided into 7 groups,which were control group(CK group),5％tiger nut addition group(5％TN group),10％ti-ger nut addition group(10％TN group),15％tiger nut addition group(15％TN group),10％tiger nut meal addition group(10％TNM group),15％tiger nut meal addition group(15％TNM group),and 20％tiger nut meal addition group(20％TNM group),with 10 replicates of 1 pig per group.The experiment was conducted from the 70th day of gestation to the end of farrowing.The results showed as follows:1)compared with the control group,the length of labor was significantly shorter in the 5％TN group and 20％TNM group(P＜0.05);the healthy litter rate was significantly higher in both the 10％TN group and 10％TNM group(P＜0.05).2)Compared with the control group,serum interleukin-6(IL-6)content was significantly lower in the 10％TN group,15％TN group,and 10％NM group(P＜0.05);serum interleukin-10(IL-10)content in the tiger nut added group,10％TNM group and 15％TNM group was significantly higher(P＜0.05);serum tumor necrosis factor-alpha(TNF-α)and exdotoxin contents were significantly lower in both tiger nut and tiger nut meal added groups(P＜0.05);and serum zonulin content was significantly lower in tiger nut added groups(P＜0.05).nitric oxide(NO),vascular endothelial generating factor(VEGF)contents and endothelial nitric oxide synthase(eNOS)activity were significantly elevated in the placental tissues of the tiger nut added groups(P＜0.05).3)Compared with the control group,propionic acid content in the feces of the tiger nut added group and tiger nut meal added groups(P＜0.05);butyric acid content was found to be a significant compo-nent in both the 10％TN group and 10％TNM group(P＜0.05).Isobutyric acid and isovaleric acid contents were significantly higher in the 10％TNM group and 20％TNM group(P＜0.05).4)At the genus level of fe-cal microbial composition,compared with the control group,10％TN group of Lachnospiraceae_NK4A136_group,Parabacteroides,Megasphaera,Lachnoclostridium,and Prevotellaceae_UCG-004 group in the 10％TN group compared with the control group(P＜0.05),and g_Lachnoclostridium and Prevotellaceae_UCG-004 group in the 10％TNM group(P＜0.05).In conclusion,the addition of 10％tiger nut or 10％tiger nut meal to the diet can significantly improve the healthy litter rate and serum immune indexes of sows in the late gestation period;the addition of tiger nut to the diet can significantly enhance the content or activity of placental activa-ting factor in sows;the addition of 10％of tiger nut or 10％of tiger nut meal to the diet can significantly regu-late the intestinal microbial composition of sows and increase the contents of short-chain fatty acids in the intes-tine.[Chinese Journal of Animal Nutrition,2024,36(8):4896-4909]
万方数据
维普
