Title of article :
Seasonal Variation of Vitamin A and Beta-Carotene Levels in Ghezel Sheep
Author/Authors :
AFSHARI, Gholamreza university of tehran - Faculty of Veterinary Medicine - Department of Clinical Sciences, تهران, ايران , HASANPOOR, Ali islamic azad university - Faculty of Veterinary Medicine - Department of Clinical Sciences, ايران , HAGPANAH, Hadi islamic azad university - Graduate of the Faculty of Veterinary Medicine, تبريز, ايران , AMOUGHLI-TABRIZI, Bahram islamic azad university - Faculty of Veterinary Medicine - Department of Clinical Sciences, ايران
Abstract :
Abstract: The present study was conducted to investigate the variations in blood serum and hepatic levels of vitamin A and â- carotene in Ghezel sheep throughout the year. From 1000 sheep aged 1-5 years, blood and liver samples were collected before and after slaughter. The levels of vitamin A and â-carotene in both samples were determined spectrophotometrically. The results showed significant differences between summer and winter values (P 0.05), but no differences were found between the sexes (P 0.05). There were significant correlations between the vitamin A levels in serum and the liver (P 0.05). Due to low levels of vitamin A and â-carotene in Ghezel sheep during the winter, supplementary feeding of vitamin A is recommended during this season.
Keywords :
Vitamin A , Beta , carotene , Ghezel sheep , serum , liver , spectrophotometry
Journal title :
Turkish Journal of Veterinary and Animal Sciences
Journal title :
Turkish Journal of Veterinary and Animal Sciences
