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Effect of Duodenal Infusion of Glucose on Blood Parameters, Heal Flow, and Digestibility in Preruminant Calves Fed a Nonclotting Milk Replacer

Département de Zootechnie, and Centre de Recherche en Nutrition, Université Laval, Québec, Québec G1K 7P4 Canada

M. Ivan²

Animal Research Centre, Agriculture Canada, Ottawa, Ontario K1A 0C6 Canada

G. J. Brisson

Département de Zootechnie, and Centre de Recherche en Nutrition, Université Laval, Québec, Québec G1K 7P4 Canada

ABSTRACT

Four Holstein male calves, each fitted with a simple duodenal cannula and a reentrant ileal cannula at 7 to 10 d of age, were fed a nonclotting milk replacer based on skim milk powder. The calves were divided into two groups and were infused with either saline (control) or a saline-glucose solution (treatment) according to a switchover design. Glucose infusion improved N retention and decreased plasma concentration of amino acids and urea. Insulin and triglycerides in plasma were not different between the two groups. Ileal flow and digestibility of dietary components were not affected by glucose infusion. The data suggest that additional energy as glucose is needed to optimize N utilization in preruminant calves fed a nonclotting milk replacer.

¹ Present address: Research Station, Agriculture Canada, C.P. 90, Lennoxville, Québec J1M 1Z3, Canada.

² Contribution Number 1472 from the Animal Research Centre.