Effects of chromium supplementation on chicken broiler growth and carcass characteristics
Kroliczewska, B.(Agricultural Univ., Wroclaw (Poland))E-mail:[email protected] | Zawadzki, W. | Skiba, T. | Mista, D.
One-day-old 90 Hubbard ISA male broiler chicks were divided into one control and two experimental groups. The two experimental groups were fed a basal diet supplemented with chromium-enriched yeast in doses of 300 or 500 microg/kg. The supplementation of 500 microg/kg significantly increased the body weight (BW), body weight gain (BWG), and feed conversion ratio (FCR). The dressing percentage was the highest (75.6%) in the group fed 500 microg/kg. This value differed significantly from those of the two other groups. The use of chromium yeast in the feeding of chickens caused a decrease in cholesterol and fat concentrations in muscles. The largest differences were observed in breast muscles in the group fed 500 microg/kg with a cholesterol decrease by approximately 19% (P less than 0.05). There was no effect of Cr supplementation on organoleptic properties, dry matter and protein concentrations in breast and leg muscles.
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