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Effects of Cu (II)-exchanged Montmorillonite on Growth Performance, Intestinal Microflora, Bacterial Enzyme Activities and Morphology of Broilers
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 Title & Authors
Effects of Cu (II)-exchanged Montmorillonite on Growth Performance, Intestinal Microflora, Bacterial Enzyme Activities and Morphology of Broilers
Xu, Z.R.; Ma, Y.L.; Hu, C.H.; Xia, M.S.; Guo, T.; Jin, H.L.;
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Two hundred forty 1-d-old Arbor Acres broiler chicks were used to investigate the effects of Cu (II)-exchanged montmorillonite (CEM) or montmorillonite on the growth performance, intestinal microflora, bacterial enzyme activities and morphology of broilers. The chicks were assigned randomly into three groups with 80 chicks per treatment. The three dietary treatments were basal diet only (control group), basal diet +1 g montmorillonite, and basal diet +1 g CEM. The results showed that the addition of CEM to the diet increased significantly the body weight and feed efficiency, but a similarly significant increase was not found in broilers fed the diet containing montmorillonite. Supplementing the CEM in the diet of broilers also decreased the numbers of Clostridium perfringens and Escherichia coli in the small intestine and cecum. The addition of either CEM or montmorillonite to the diet depressed the activities of -glucosidase and -glucuronidase in the small intestinal and cecal contents. Data of villus height and crypt depth for duodenum, jejunum and ileum indicated that dietary addition of CEM or montmorillonite improved the small intestinal mucosal morphology.
Growth Performance;Intestinal Microflora;Bacterial Enzyme;Intestinal Morphology;Montmorillonite;Broiler;
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