Clinicochemical follow-up of broiler rearing--a five-week study.
Commercial broilers were raised in a 5-week period and a detailed clinicochemical follow-up was carried out, to characterise a flock selected for one-sided muscle mass production. Blood samples were drawn at the ages of 1 day, 1, 2, 3, 4 and 5 weeks, and plasma enzyme activities, metabolite and ion concentrations were determined. Early increases were found for all plasma nitrogenous compounds (total protein, albumin, creatinine and urate). Triglyceride showed a posthatch peak with a significant effect of age. Plasma total cholesterol was characterised by a marked post-hatch concentration peak, while during the first week its concentration decreased markedly. Plasma AST showed an increase during the rearing, while a one-magnitude increment was found for creatine kinase activity during the study. The main results of the study outlined a typical precocial bird (post-hatch triglyceride peak; decreasing cholesterol and early peaking plasma protein and urate concentrations) with very quick skeletal muscle mass growth (increasing creatine kinase and AST activities, slight hyperkalaemia).
Szabó
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Faculty of Animal Science, University of Kaposvár, H-7400 Kaposvár, Guba S. u. 40, Hungary. szan1125@freemail.hu
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D000410:Alanine Transaminase / Q000097:blood; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D001774:Blood Chemical Analysis / Q000662:veterinary*; D001798:Blood Proteins / Q000032:analysis; D001835:Body Weight; D002118:Calcium / Q000097:blood; D002645:Chickens / Q000097:blood* / Q000254:growth & development*; D002712:Chlorides / Q000097:blood; D002784:Cholesterol / Q000097:blood; D003402:Creatine Kinase / Q000097:blood; D003404:Creatinine / Q000097:blood; D005916:Globulins / Q000378:metabolism; D007501:Iron / Q000097:blood; D018482:Muscle, Skeletal / Q000254:growth & development*; D010710:Phosphates / Q000097:blood; D011188:Potassium / Q000097:blood; D012964:Sodium / Q000097:blood; D014280:Triglycerides / Q000097:blood; D014527:Uric Acid / Q000097:blood
D001798:Blood Proteins; D002712:Chlorides; D005916:Globulins; D010710:Phosphates; D014280:Triglycerides; D014527:Uric Acid; D002784:Cholesterol; D012964:Sodium; D003404:Creatinine; D007501:Iron; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D003402:Creatine Kinase; D011188:Potassium; D002118:Calcium