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《Journal of the Chinese Cereals and Oils Association》 2015-04
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Effects of Attapulgite on Growth Performance,Metal Content in Blood,Muscle and Meat Quality of Growing-Finishing Pigs

Yang Xue;Leng Zhixian;Yan Rui;Chen Xing;Wu Dawei;Zhou Yanmin;College of Animal Science and Technology,Nanjing Agricultural University;  
This experiment has been conducted to study the effects of both dietary attapulgite and heat-modified attapulgite on the growth performance,metal content and meat quality of growing-finishing pigs. A total of 60 healthy pigs( variety of half-bred of Duroc × Landrace × Yorkshire) with the middle weight about 47 kg were randomly allocated into three groups with four replicates. The pigs in control group were fed the diet without attapulgite while the other two groups were provided with 2% attapulgite and 2% heat-modified attapulgite respectively. The results showed that: 1) the addition of attapulgite and heat-modified attapulgite in diet have no effects on growth performance( P 0. 05); 2) attapulgite and heat-modified attapulgite significantly decreased As,Pb,Cr contents in blood and Cr contents in leg muscle( P 0. 05),hot-modified attapulgite significantly increased Mg content in blood( P 0. 05); 3) attapulgite decreased the malondialdehyde content( MDA) in eye muscle( P 0. 05); attapulgite and heat-modified attapulgite reduced the total anti-oxidative capacity( T-AOC) of eye muscle( P 0. 05); 4) attapulgite increased the value of p H45 min,a*45 minin eye muscle while attapulgite decreased the value of L*45 min,b*24 hwith pressure loss( P 0. 05). The results indicated that the diets supplemented with attapulgite and heat-modified attapulgite could decrease deposition amount of heavy metal in the animal tissues,enhance antioxidant capacity and improve meat quality. The heat-modified attapulgite should lead a better effect.
【Fund】: 江苏省产学研联合创新资金-前瞻性联合研究项目(BY2012206)
【CateGory Index】: S828.5
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