Repeatability of Egg Number and Egg Weight in Two Strains of Layer Type Chicken
نویسندگان
چکیده
منابع مشابه
The effect of florfenicol egg-injection on embryonated chicken egg
Pathogens are an important and significant hazard for human and animal health. In recent years, antibiotics are used to treat different types of infection caused by bacterial agents. In veterinary medicine, antibiotics injected into hatching eggs to eliminate pathogens and prevention of egg transmission of disease, but the adverse effects of drugs have always been a major conc...
متن کاملThe effect of florfenicol egg-injection on embryonated chicken egg
Pathogens are an important and significant hazard for human and animal health. In recent years, antibiotics are used to treat different types of infection caused by bacterial agents. In veterinary medicine, antibiotics injected into hatching eggs to eliminate pathogens and prevention of egg transmission of disease, but the adverse effects of drugs have always been a major conc...
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The study was conducted to determine the effects of turkey (Meleagris gallopavo)egg weight on certain egg traits and hatching performance. A total of 178 turkey eggs comprising of three different egg weight groups below 60 g (G I), 61 to 69 g (G II) and above 70 g (G III) were used for this study. Average egg weight (g), egg length (cm), egg breadth (cm) and egg volume (cm3) values increased wi...
متن کاملEstimating Repeatability of Egg Size
—Measures of repeatability have long been used to assess patterns of variation in egg size within and among females. We compared different analytical approaches for estimating repeatability of egg size of Black Brant. Separate estimates of repeatability for eggs of each clutch size and laying sequence number varied from 0.49 to 0.64. We suggest that using the averaging egg size within clutches ...
متن کاملEstimation of Per Capita Consumption of Chicken Egg and Attitude of Tehrani Families towards Factors Influencing Egg Consumption in 2018
Background: Eggs are of the few naturally occurring foods that meet the needs of human body in a balanced manner. The present study was conducted to determine the rate of egg per capita consumption in Tehran city in 2018. Methods: The present cross-sectional study was conducted on 4.213 heads of families living in 22 regions of Tehran. Selected randomly using multistage cluster sampling meth...
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ژورنال
عنوان ژورنال: International Journal of Poultry Science
سال: 2010
ISSN: 1682-8356
DOI: 10.3923/ijps.2010.675.677