Effect of dietary methionine on performance, carcase characteristics and breast meat composition of heterozygous naked neck (Na/na plus ) birds under spring and summer conditions


Yalcin S. , Ozkan S. , Acikgoz Z. , ÖZKAN K.

BRITISH POULTRY SCIENCE, cilt.40, ss.688-694, 1999 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 40 Konu: 5
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1080/00071669987098
  • Dergi Adı: BRITISH POULTRY SCIENCE
  • Sayfa Sayısı: ss.688-694

Özet

1. Heteroxygous naked neck (Na/na+) birds and their normally feathered counterparts (na+/na+) were fed from 0 to 7 weeks on 3 diets differing in methionine concentrations. From 0 to 3 and 3 to 7 weeks, respectively, the concentrations were: low containing 4.3 and 3.3 g/kg; optimum containing 5.0 and 3.8 g/kg and; high with 5.7 and 4.4 g/kg under spring (optimum ambient temperature) and summer conditions (high ambient temperature). Performance, carcase characteristics and breast meat chemical composition were determined.