Modeling the performance of broilers under heat stress
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چکیده
منابع مشابه
Effects of different levels of zinc on the performance and immunocompetence of broilers under heat stress.
Male broilers were used to evaluate the effect of zinc on performance and immune competence during heat stress (HS). Broilers raised in either a thermoneutral (TN, 23.9 degrees C constant) or HS (23.9 to 35 degrees C cycling) environment were fed a low zinc diet (LZ; 34 mg/kg), an adequate zinc diet (AZ; 68 mg/kg), or a supplemental zinc diet (HZ; 181 mg/kg). Humoral immunity was assessed by in...
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This study was aimed to investigate the effects of encapsulated nano- and microparticles of peppermint (Mentha piperita) extract on the growth performance, blood parameters and immune system of broilers under heat stress conditions. In total, 320 one-day-old broilers (Ross, 308) were assigned into 4 experimental treatments: the control, peppermint alcoholic extract (PE, 200 ppm/kg body weight (...
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This study was conducted to find out the effects of drinking water containing lemon juice and thyme supplemented diet on growth performance, serum concentration of cholesterol and triglycerides, heterophils (H), lymphocytes (L), H/L ratio and enzyme activity of glutathione peroxidase (GPX) in broilers under heat stress condition. The experiment was carried out as a 2 × 3 factorial arrangement w...
متن کاملSHORT COMMUNICATION Pathology of heart, lung, liver and kidney in broilers under chronic heat stress
Aengwanich, W. and Simaraks, S. Pathology of heart, lung, liver and kidney in broilers under chronic heat stress Songklanakarin J. Sci. Technol., 2004, 26(3) : 417-424 The purpose of this experiment was to investigate pathological changes in broilers under chronic heat stress. Fifteen birds (n = 15), twenty-eight days old were kept at 33 + 1oC environmental temperature for 21 days. While broile...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 2021
ISSN: 0032-5791
DOI: 10.1016/j.psj.2021.101338