عنوان البحث | ملخص البحث | Research Abstract |
تأثير الإستجابة للمناعة للمستضد SRBC والجنس على تركيز الجلوبيولينات المناعية
ووزن الغدد الليمفاوية في الدجاج | | ABSTRACT: A total number of 320 birds of Norfa strain from both males and females were used in the present experiment. At 20-wk of age, the primary antibody (Ab) titers for sheep red blood cells (SRBC) were determined for each individual at |
EFFECT OF BREEDING SEASON AND SEX RATIO ON FERTILITY AND HATCHABILITY PERCENTAGES OF OSTRICH EGGS | | ABSTRACT:
A total number of 8 birds of mature black neck bred ostriches (3 males and 5 females) and 130 chicks at hatch were used in the present study, for two consecutive breeding seasons, in order to study some productive and reproducti |
THE INTERACTION EFFECT AMONG AGE OF LAYER, STRAIN OF CHICKEN AND YEAR OF LAYING ON INTERNAL EGG QUALITY TRAITS | | ABSTRACT:
The present study was conducted to compare the internal egg quality traits in two local developed strains (Sinai and Norfa) with two foreign commercial strains (Lohman Selected Leghorn and Lohman Brown) of chicken at sexual matu |