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標題: Effect of threonine addition to a low protein diet on IgG levels in body fluid of first-litter sows and their piglets
作者: Hsu, C.B.
Cheng, S.P.
Hsu, J.C.
Yen, H.T.
關鍵字: immunoglobulin G;piglets;pregnancy diets;sows;threonine;immunoglobulins igg;feeding level;amino-acids;serum;gestation;pregnancy;lactation;swine;gilts;milk
Project: Asian-Australasian Journal of Animal Sciences
期刊/報告no:: Asian-Australasian Journal of Animal Sciences, Volume 14, Issue 8, Page(s) 1157-1163.
First-litter gilts were used to determine how different dietary treatments during gestation affect the reproductive performance of gilts and immunity development of their piglets. Twenty two crossbred Landrace X Yorkshire gilts were randomly assigned to three dietary treatments. Following conception, the gilts were fed experimental diets until farrowing occurred. The diet for treatment 1 was low protein diet (8% CP). treatment 2 had an additional supplement of 0.14% threonine that was added to the low protein diet. and treatment 3 was a control diet containing 12% CP. During gestation, net body weight gain of sows in treatment group 2 was higher than in treatment group 1 (p=0.075). However during lactation there was no difference between all treatments groups on body weight loss and their live piglets at birth. Although milk IgG between treatments did not differ, treatment groups 2 and 3 were slightly higher than treatment group was. Plasma IgC concentrations in piglets were however equal within all treatment groups at birth and at 7 days of age, at 21 days of age. it was higher in treatment group 1 than it was in the other two groups (p <0.01). Threonine supplementation to a low protein diet Juring gestation slightly increases milk Ige of sows. It is beneficial for piglets to acquire more passive immunity. but a suppressive effect was also noted on the endogenous IgG synthesis in piglets. A gestation diet of 8% CP for gifts can stimulate immune-system of her piglets.
ISSN: 1011-2367
Appears in Collections:動物科學系

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