Effects of chromium supplementation on growth rate and metabolism in fattening bulls
Effects of chromium supplementation on growth rate and selected metabolic indexes including interactions with trace elements (zinc, copper) were investigated in 8-month-old bulls divided into one experimental (E, n=8) and one control (C, n=9) group with mean live weights 284.9+/-33.9 and 279.6+/-27....
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Published in | Acta veterinaria Brno Vol. 71; no. 4; pp. 535 - 541 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
01.12.2002
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Subjects | |
Online Access | Get full text |
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Summary: | Effects of chromium supplementation on growth rate and selected metabolic indexes including interactions with trace elements (zinc, copper) were investigated in 8-month-old bulls divided into one experimental (E, n=8) and one control (C, n=9) group with mean live weights 284.9+/-33.9 and 279.6+/-27.0 kg, respectively. The experimental group was fed a diet supplemented with chromium-enriched yeasts in a dose corresponding to the intake of 5 mg of Cr per animal per day in the first phase (up to day 136) and 8 g per animal per day in the second phase (days 136 to 220) of the fattening period. The bulls were weighed and blood samples were collected on days 1, 136 and 220 of the experimental period. Favourable effects of chromium supplementation were evident from significantly higher weight gains in the first fattening phase (1.04 vs. 0.82 kg). The diference diminished and was not significant in the second phase of fattening (0.82 vs. 0.74). The concentrations of protein on days 136 and 220, total cholesterol on day 136, copper on days 136 and 220 were significantly higher and concentrations of magnesium on day 220, phosphorus on days 136 were significantly lower in experimental than in control bulls. No effects on the concentrations of glucose, urea, Na, K, Zn, AST, GMT, LD, ALP, and CK were observed. |
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Bibliography: | Q55 L52 L51 2003000287 |
ISSN: | 0001-7213 1801-7576 |
DOI: | 10.2754/avb200271040535 |