Physiological values of selected serum biochemical indices in broiler chickens

This paper deals with normal values of some serum biochemical parameters in broiler chickens with regard to their age and sex. Studies were carried ou t every week on clinically healthy broiler chickens of the Vedetta race, bo th females and males aged 2-7 weeks. In blood serum collected from the bird s, levels of total protein, glucose, Fetal cholesterol, triglycerides, calc ium (Ca) and inorganic phosphorus (P) as well as the activity of some enzym es including alanine aminotransferase (ALT), aspartate aminotransferase (AS T), alkaline phosphatase (AP), lactate dehydrogenase (LDH), creatine kinase (CK), cholinesterase (ChE) were determined. No differences in the analysed biochemical index values between the females and the males mere found. The following indices were found to be age dependent: levels of total protein (increased from 5 weeks of age), triglycerides and AP activity (decreasing with age), CK activity (increased in females from 5 and in males from 6 wee ks of age), ChE activity (decreased in females from 6 and in males from 5 w eeks of age).