Abstract
White Leghorn layer chicken experienced cold stress during December, 2019 to January, 2020 with lowestminimum AT and lowest average temperature during later part of January, 2020. Cold stress caused increasein HSP70 and SOD of White Leghorn layer chicken. Supplementation of chromium picolinate (@ 400 μg/kgfeed) and vitamin C (@ 250 mg/kg of feed) alleviated cold stress and cold induced oxidative stress in White Leghornchicken. Alleviation of stress by supplementation of chromium picolinate and vitamin C could be estimated bythe measure of drop in HSP70 and SOD. Supplementation of chromium picolinate and vitamin C also had beneficialimpacts on egg length during cold stress. Combination of chromium picolinate and vitamin C was best to alleviatecold stress while vitamin C was best to lower oxidative stress in layer.
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