نتایج جستجو برای: fertility and hatchability

تعداد نتایج: 16833043  

2018

Chickens are kept in many parts of the world irrespective of climate, traditions, life standard, and there is no religious taboo related to consumption of eggs and chicken meat like those for pig meat [1]. To the poor majority people of rural areas, chickens serve as an immediate source of meat and income when money is needed for urgent family requirement [2]. It renders a significant contribut...

ژورنال: علوم آب و خاک 1999
قیصری, عباسعلی ,

This study aims to determine the effects of storage period and egg weight on albumen pH and hatchability of hatching eggs. For this purpose, the eggs produced by native breeder hens (28 - 31 weeks of age) were used in a completely randomized design with a 3 × 8 factorial arrangement. The main factors were 3 egg weight ranges (46 - 49, 50 - 52 and 53 - 56) and 8 storage periods (1, 3, 6, 9, 12, ...

قیصری, عباسعلی ,

This study aims to determine the effects of storage period and egg weight on albumen pH and hatchability of hatching eggs. For this purpose, the eggs produced by native breeder hens (28 - 31 weeks of age) were used in a completely randomized design with a 3 × 8 factorial arrangement. The main factors were 3 egg weight ranges (46 - 49, 50 - 52 and 53 - 56) and 8 storage periods (1, 3, 6, 9, 12, ...

2012
S. A. El - Safty

A total number of 330 native Libyan chicken eggs were collected from smallholders over different areas of south Libya to determine and classify some quantitative and qualitative traits in Libyan native fowls. The quantitative traits studied in the current trial were fertility and hatchability percent, egg weight, eggshell characteristics (weight, thickness, area), chicks weight and body measure...

2012
M. A. A. Abdel - Mageed S. A. M. Shabaan

A 12-wk laying trial, using 240 hens and 24 cocks of 52-wk old Fayoumi chicken strain, was conducted to determine whether hatchability can be improved by dietary biotin supplementation during the late stages of egg production and to study its effect on progeny performance. Birds were divided into 4 equal groups of 6 replicates each. A corn-soybean meal basal layer diet was formulated to contain...

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