The Role of Chromium in Animal Nutrition by Committee on Animal Nutrition

Author:Committee on Animal Nutrition
Language: eng
Format: epub
Tags: Agriculture : Animal Health and Nutrition
Publisher: NATIONAL ACADEMY PRESS
Published: 1997-10-15T00:00:00+00:00

Sows

As a follow-up to feeding 200 µg Cr/kg of diet as CrPic to growing swine, Lindemann (1995b) continued feeding 200 µg Cr/kg to gilts through two parities. They found that sows fed chromium had more total pigs born, more live pigs born, and more pigs at 21 days than did sows fed an unsupplemented diet. They also observed that changes in serum insulin concentrations and insulin-to-glucose ratios in the sows indicated an improvement in the efficiency of insulin action as a result of chromium supplementation.

In another study, Lindemann et al. (1995a) used gilts that had received no previous dietary chromium supplementation. The treatments evaluated were no supplemental chromium, 200 µg Cr/kg of diet as CrPic during nonlactation only, 200 µg Cr/kg during lactation only, or 200 µg Cr/kg during both periods. No effects of supplemental CrPic were observed on total pigs born, live pigs born, or pigs alive at 21 days. The authors surmised that these results, which did not support those of Lindemann et al. (1995b), provided evidence of the need for chromium supplementation early in the gilt’s life (from 18 kg body weight).

No information describing chromium toxicity for swine was found in the literature.

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