M. A. Ketata, M. Letourneau-Montminy, Frédéric Guay
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引用次数: 0
Abstract
This study aimed to evaluate the effect of dietary zinc and copper levels on their apparent ileal digestibility (AID) and total tract digestibility (ATTD), and that of calcium, manganese, iron, phosphorus, and fibre in pigs. The experiment was carried out with six individuals fitted with a T-cannula. Pigs received one of four diets with two levels of zinc (100 [low] and 500 [high] mg/kg) and copper (40 [low] and 80 [high] mg/kg). HighZinc increased AID of zinc and manganese but decreased that of calcium (P < 0.05). HighCopper tended to improve AID of copper but only when highZinc was used (Zinc×Copper, P = 0.051). ATTD of zinc, copper, manganese, and phosphorus was greater in highZinc (P < 0.05). HighCopper also increased ATTD of copper, but reduced that of calcium (P < 0.05) as it likely did for ATTD of phosphorus in lowZinc (Zinc×Copper, P = 0.065). There was an improving trend for ATTD of NDF (Zinc×Copper, P = 0.069), and ATTD of ADF was increased with a combination of highZinc and highCopper (Interaction, Zinc×Copper P < 0.05). This research showed that levels of copper and zinc modified the digestibility of minerals but also the degradability of fibre.
期刊介绍:
Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.