Ruiming Li;Ling ZeJi;Song XiaoBai;Qin Jin;Xie YingXue;Yujing Sh

Veterinary College, Yangzhou University, Yangzhou 225009, Chin;Veterinary College, Yangzhou University, Yangzhou 225009, China

oligosaccharide;piglets;enhanced;isomalto;production performance;0

[Objective]To study the effects of different oligosaccharides on immunity and production performance of piglets.[Method]A total of 75 Yorkshire×Rongchang piglets were assigned into five groups,15 in each group.Isomalto-oligosaccharide,fructo-oligosaccharide,mannan-oligosaccharide,and mixed oligosaccharide were supplemented to basic diet (7.5 g/kg) ,respectively.The control group was also set.The experimental period lasted for 53 d.The clinic symptoms and diarrhoea were observed.All piglets were weighed once a week.Feed intake was also recorded.Blood was collected via precaval vein for determination of immunology indexes at the age of 30 and 60 d,respectively.[Result]Isomalto-oligosaccharide and fructo-oligosaccharide enhanced cellular immunity of 30-day-old piglets significantly (P0.05) ,and isomalto-oligo-saccharide also enhanced their humoral immunity.Mannan-oligosaccharide enhanced cellular immunity and humoral immunity of 60-day-old piglets significantly (P0.05) .It also improved production performance largest,and its diarrhoea rate was the lowest.[Conclusion]Different oli-gosaccharides have various effects on immunity and production performance of piglets.