The Effect of Chromium-Methionine on Growth Performance and Carcass Characteristics of Broiler Chickens under Heat Stress

September 30, 2025Journal of Animal EcologyOpen Access

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This study aims to examine the effects of chromium-methionine on growth performance and carcass characteristics of broiler chickens experiencing heat stress.
600 Ross 308 broiler chickens were randomly assigned to 10 experimental treatments with varying chromium levels (0, 350, 700, 1400, and 2800 µg/kg) from chromium-methionine.
Performance metrics including body weight, feed intake, and feed conversion ratio were measured periodically.
At the end of the study, 2 birds from each cage were selected to assess carcass characteristics and organ weights.
No significant effects on body weight and feed conversion ratio were observed across treatment groups (p<0.05).
Daily feed intake was significantly higher in the group receiving 2800 ppb chromium (p<0.05).
No meaningful differences were found in carcass characteristics or organ weights across treatments (p<0.05).

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Evaluates chromium-methionine on growth and meat quality in broiler chickens under heat stress, suggesting limited benefits.

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Babaei et al. (2025) studied this question.

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