E hypovitaminosis in broiler chicken
2000
B"chvarova, I. (Tsentralen Veterinarnomeditsinski Institut "Prof. d-r G. Pavlov, Sofia (Bulgaria)) | Bajchev, Zh. | Grozdanova, S.
Studies were carried out on 21-32 days old broilers chicken with clinical signs of E hypovitaminosis to assess the etiological factors causing morbidity due to tocopherol deficiency. It is established that increase of raw fat content in broiler diet from 2,5 to 4,87% leads to increase of liver tocopherol with 13,71%. Feeding broilers with fourages containing raw fats with a high rate of oxidation results in appearance of initial symptoms of E hypovitaminosis after 7-10 days. Lasting deviations of the appropriate temperature and humidity regimen provoke the clinical signs of tocopherol deficiency in broiler chicken.
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