Journal of Animal Science, Vol 72, Issue 6 1591-1599, Copyright © 1994 by American Society of Animal Science

JOURNAL ARTICLE

Influence of chromium picolinate on glucose usage and metabolic criteria in growing Holstein calves

L. D. Bunting, J. M. Fernandez, D. L. Thompson Jr and L. L. Southern
Department of Dairy Science, Louisiana State University Agricultural Center, Baton Rouge 70803.

Holstein calves, 10 steers (98 +/- 16 kg; Exp. 1) and 14 heifers (122 +/- 7 kg; Exp. 2), were fed either corn-cottonseed hull basal diets (CON; 15.1 and 13.2% CP, respectively) or CON plus 370 micrograms/kg of Cr as Cr-tripicolinate (CrP). After either 58 (Exp. 1) or 56 (Exp. 2) days of ADG and DMI measurement, calves were individually fed 1.4% of their BW every 12 h through the end of each experiment. Nitrogen balance, i.v. glucose tolerance tests (IVGTT), i.v. insulin challenge tests (IVICT), baseline growth hormone (GH) measurements, and GH-releasing hormone challenges were then performed on calves in split groups on d 70 through 87 in Exp. 1. In Exp. 2, all challenges began on d 78 and N balance was not determined. Inclusion of CrP did not affect (P > .10) ADG, DMI, or ADG/DMI of pooled data from Exp. 1 and 2 or N balance criteria in Exp. 1. Plasma glucose, insulin, and NEFA concentrations were not affected (P > .10) by CrP. Total plasma cholesterol was lower (P < .05) for CrP- than for CON-fed calves at wk 4 in Exp. 1 and wk 6 in Exp. 2. During IVGTT, calves fed CrP vs CON had higher (P < .05) clearance rates for glucose in Exp. 1 (2.68 vs 1.88%/min) and in Exp. 2 (2.64 vs 2.08%/min). During IVICT, calves fed CrP vs CON had higher clearance rates for glucose in Exp. 1 (2.98 vs 2.34%/min; P = .12) and in Exp. 2 (2.89 vs 2.00%/min; P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)

This article has been cited by other articles:

				P. S. Chan, J. W. West, J. K. Bernard, and J. M. Fernandez Effects of Dietary Cation-Anion Difference on Intake, Milk Yield, and Blood Components of the Early Lactation Cow J Dairy Sci, December 1, 2005; 88(12): 4384 - 4392. [Abstract] [Full Text] [PDF]

				K. L. Smith, M. R. Waldron, J. K. Drackley, M. T. Socha, and T. R. Overton Performance of Dairy Cows as Affected by Prepartum Dietary Carbohydrate Source and Supplementation with Chromium Throughout the Transition Period J Dairy Sci, January 1, 2005; 88(1): 255 - 263. [Abstract] [Full Text] [PDF]