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A Comparison of Copper Methionine, Tribasic Copper Chloride and Copper Sulfate as Copper Sources for Swine

Author(s): Hengxiao Zhai | Limin Gong | Yongxi Ma

Journal: Journal of Animal and Veterinary Advances
ISSN 1680-5593

Volume: 5;
Issue: 8;
Start page: 623;
Date: 2006;
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Keywords: Pig | performance | copper sulfate | copper methionine | tribasic copper chloride

Two experiments were conducted to investigate the effects of added copper on pig performance, tissue copper concentrations and fecal copper excretion. In experiment one, 18 crossbred (Yorkshire x Landrace) barrows weighing an average of 14.271.39 kg were housed in stainless metabolism cages for 14 weeks and fed one of three corn-soybean meal based diets (n=6) supplemented with either 0, 125 or 250 ppm copper from copper sulfate. The total fecal collection method was used to calculate daily fecal copper excretion. All pigs were slaughtered and samples of tissue were collected from the central right liver lobe, left kidney cortex and left longissimus muscle at the 10th rib. Copper excretion increased with increasing levels of dietary copper addition (p

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