Mikail Baylan
Vocational School, Mustafa Kemal University, Turkey
Sibel Canogullari
Vocational School, Mustafa Kemal University, Turkey
Tugay Ayasan
Cukurova Agricultural Research Institute, Adana, Turkey
Ahmet Sahin
Agriculture Faculty, Hatay, Turkey
ABSTRACT
The present study was conducted to evaluate the effects of dietary threonine amino acid supplementation on growth performance and carcass characteristics of Japanese quails. Day old, two hundred and seventy quail chicks were divided into six dietary treatment groups comprising 45 birds each, which consisted of 3 subgroups containing 15 birds for each replicate. Experimental diets were prepared and contained 0.81, 0.86, 0.91, 0.96, 1.01 and 1.06 % threonine amino acid, respective to groups 1-6, on fresh matter basis. Birds were fed these experimental diets respective to treatment for 35 days. Total feed intakes and the changes in body weights were determined on weekly basis. At the end of experiment 35-d, birds were killed humanly to determine their edible carcass parts. Results showed that threonine supplementation to the diet did not affect growth performance and edible carcass parts (p>0.05), assuming that birds can make metabolic adaptation to current dietary threonine supplementations.
How to cite this article
Mikail Baylan, Sibel Canogullari, Tugay Ayasan and Ahmet Sahin, 2006. Dietary Threonine Supplementation for Improving
Growth Performance and Edible Carcass Parts in Japanese Quails, Coturnix
coturnix Japonica. International Journal of Poultry Science, 5: 635-638.
DOI: 10.3923/ijps.2006.635.638
URL: https://scialert.net/abstract/?doi=ijps.2006.635.638
DOI: 10.3923/ijps.2006.635.638
URL: https://scialert.net/abstract/?doi=ijps.2006.635.638