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The Effect of Citric Acid Added to Piglets' Diets

Chen Bin Liu Xiaochun Liu Kangzhu Zhang Guisheng( Department of Animal Science, Northwester Agricultural University, Yangling,Shaanxi, 712100)( Swine Breeding Farm of Xian,Sanqiao, Yian,china,710086)  
This experiment invloving 126 large Yorkshire piglets was conducted toinvestgate the effect of adding citric acid to the diets for piglets at the age of 29~58 daysold. There were 5 treatment groups with citric acid added to five levels of 0%,0.5%,1,0%,1.5%or 2.0%. The statistics on weight gain,feed/gain efficiency and the diar-rhea of every group at different ages were analysed. The results also indicated thatpiglets in all the groups with citric acid added to their diets improved their weight gainand feed/gain efficiency after weanling(at the age of 41~58 days),and that the pigletswere fed with diets with 1.5%of citric acid added to gained weight faster than those on-ly fed with the diets in the control (P0. 01) and 2.0%of citric acid diets(P0.05).All the groups of piglets with their diets added with citric acid can decrease the incidenceof diarrhea in comparision with the piglets in the control. Therefore,it is suggested thatonly 1.0%~1.5%of citric acid be added to piglets'diets.
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