IJSR - International Journal of Scientific Research

Hadar H. Al–Bataat; Asaad Y. Ayied

Volume : VI, Issue : VIII, August - 2017

THE IMPACTS OF AGE, SEX AND GENOTYPE ON CARCASS TRAITS, BIOCHEMICAL BLOOD PARAMETERS AND HORMONE CONCENTRATIONS OF CATTLE

Hadar H. Al Bataat, Asaad Y. Ayied

Abstract :

The current study was conducted to compare the carcass traits, blood biochemical parameters and hormone concentrations for different genotypes, age and sex of cattle slaughtered at Basra slaughterhouse. Total 100 animals of Brahman, cross (Jenubi x Friesian), Jenubi and Roman were randomly selected and divided into (24, 28, 26 and 22 respectively). Each studied genotype was divided into a nearly equal number of male and female. The selected animals were divided into 1, 2 and 3 years old. Carcass traits were included live body weight, carcass weight and dressing percentages. The means of blood metabolic parameters include glucose, urea, cholesterol, triglycerides, total protein, albumin, globulin and hormone insulin, thyronine (T3) and thyroxine (T4) were compared among experimental animals. The results revealed that Brahman eed recorded the highest and significant body and carcass weight with highest dressing% (424.00 kg, 279.32 kg and %66.06 respectively). Males‘ body weight and carcass weight were significantly higher than those of females (378.99 and 245.16 kg vs. 317.27 and 195.70 kg respectively). Body and carcass weights increased significantly with the animal‘s age. There were no significant differences in mean concentrations of total protein, albumin, globulin and cholesterol of different genotypes, sex and age groups. However, significant differences were observed in mean concentrations of triglyceride, glucose and urea level among genotypes. No significant differences were seen between two sexes in urea and glucose serum concentration, whereas it was significant in a triglyceride. Age has no significant effect on triglyceride, while glucose and urea serum concentration were differ significantly with age. Hormones T3, T4 and insulin were differed significantly among genotypes, but they were not between the sexes. Ages had no significant effects on T3 and T4 serum concentration.