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العنوان
Possibilities of Indirect Selection for Some Quantitative Characters in Poultry
الناشر
Ain Shams University. Faculty of Agriculture. Animal Production Department
المؤلف
Ismaiel,Ismaiel Habieb .
هيئة الاعداد
باحث / ismail habib ismail
تاريخ النشر
1980 .
عدد الصفحات
184 p.
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علم الحيوان والطب البيطري
تاريخ الإجازة
1/1/1980
مكان الإجازة
جامعة عين شمس - كلية العلوم - تربية الدواجن.
الفهرس
Only 14 pages are availabe for public view

from 203

from 203

Abstract

This investigation is designed to study the genetic and phenotypic parameters of some quantitative characters to estimate the genetic correlated response for some important traits and the possibilities of improving these traits through solution of other traits. Parental birds are hatched, brooded and reared till 20 weeks of age. Body weight and body measurements (comb length, wattle length, keel length and shank length) are recorded for each sex separately. Age at sexual maturity, egg production traits (weight of first egg and number and weight of egg production during the first 90 days of production) are measured. Phenotypic correlation between the previous traits is estimated.