RADIOLOGICAL STUDIES ON THE EFFECT OF VITAMIN A ON THE RATE OF FOOD PASSAGE IN FAYOUMI CHICKEN

Document Type : Research article

Authors

Department of Physiology and Dept. of Surgery, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt

Abstract

Three groups of one-day-old chicken were raised for a period of 8 weeks on a ration which differed only in the level of Vit. A content. At the end of this period the rate of passage of food along the alimentary tract of the birds were investigated radiologically using barium sulphate as a radioopaque substance. It was found that hyper-as well as hypovitaminosis A both lead to retardation of the rate of passage of food along the digestive tract with consequent retardation of the growth. The reasons for such retardation have been discussed.