Document Type : Articles

Authors

1 University of Basrah / College of Veterinary Medicine / Department of Veterinary Public Health

2 University of Basrah / College of Agriculture / Department of Animal Production

Abstract

This study was conducted in the animal field of the research station of the College of Agriculture - University of Basrah, where thirty Arabi females' sheep were randomly selected and divided into three weight groups (26-15), (27-38) and (above 39) kg. Blood samples were taken from the jugular vein and centrifuged to separate blood plasma to study the effect of body weight on some biochemical parameters (cholesterol, total protein, GOT, GPT and ALP enzymes) and some sex hormones (estrogen, progesterone, FSH and LH) and metabolic hormones (growth hormone, IGF-1 and leptin). The results showed a significant increase (P<0.05) in the concentration of cholesterol, total protein and ALP enzyme in blood serum when body weight increased. There was also a significant increase in the concentration of sex hormones and some metabolic hormones when body weight increased from 15 to more than 39 kg. Growth hormone did not show a significant difference compared to other weight groups.