Turkish Journal of Veterinary and Animal Sciences

Yazarlar: O. Nihat ERTAŞ, Kazım ŞAHİN

Konular:-

Anahtar Kelimeler:Heat stress,Egg production,Serum metabolites,Digestibility

Özet: In this study, the effects of different density diets (15% HP, 2700 kcal/kg ME, Diet N; 18% HP, 3025 kcal/kg ME, Diet Y), and different feeding methods on yield, egg quality, blood acid-base balance, serum metabolites, and nutrient digestibility were determined in laying hens at heat stress. Sixteen-week-old hens (Ross Brown) were divided into 6 group of 30 hens each and study was conducted in a 3 x 2 factorial experimental design. The diets were given to animals by three methods during heat stress. The feeding methods were as follows. Both diets were given to hens through traditional ways (Control Group N and Y); during the hottest hours of the day, feed withdrawal was conducted and the darkening was excluded (Withdrawal Group N and Y); and the house was darkened by black curtains between 1400-1800 and feed withdrawal was not done Darkening Group N and Y. During the treatments, diets and feeding methods had significant effects on feed intake (p

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