Calcium Requirements of Turkey Breeder Hens
نویسندگان
چکیده
منابع مشابه
Iron requirements of broiler breeder hens.
A study was conducted to investigate Fe requirements of broiler breeders. One-hundred-fifty-six Cobb 500 broiler breeder hens were individually placed in electrostatically painted cages at 22 weeks. The study was composed of an adaptation phase, in which hens were fed corn-soy-wheat bran diets until 35 wks. An Fe deficient mash diet (24.6 ppm Fe) was provided from 35 to 46 wk in order to induce...
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متن کاملAhemeral lighting of turkey breeder hens. 2. Early age at lighting and reproductive performance.
An experiment was conducted to determine whether ahemeral lighting (AH) could be used to obtain increased egg weight and poult weight and otherwise normal reproductive performance in Large White turkey hens lit as early as 26 wk of age. The experimental design utilized a 2 x 2 factorial arrangement of treatments that evaluated two light cycle lengths (24 h, control and 28 h, ahemeral) at two he...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1964
ISSN: 0032-5791
DOI: 10.3382/ps.0430378