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Defective eggs and their relationship to egg yield, egg and body weight in hens of five original laying lines
hens cracked eggs double-yolk eggs
2015/6/5
We investigated 3 985 individually housed hens of five original laying lines of two breeds RIR and BPR. The proportion of abnormal eggs out of the eggs laid before the age of 240 days ranged between 7...
Effects of Maternal Factors on Day-old Chick Body Weight and Its Relationship with Weight at Six Weeks of Age in a Commercial Broiler Line
Broiler Line Maternal Effects Animal Model Restricted Maximum Likelihood Procedure Heritability Genetic Variance
2010/5/4
The present study aimed to investigate the effects of maternal factors on body weight at hatching (day-old) and at six weeks of age in a commercial broiler line. A total of 6,765 records on body weigh...
Canonical correlation analysis for studying the relationship between egg production traits and body weight, egg weight and age at sexual maturity in layers
canonical correlation egg production body weight egg weight age at sexual maturity
2005/6/1
In this study, canonical correlation analysis was applied to layer data to estimate the relationships of egg production with age at sexual maturity, body weight and egg weight. For this purpose, it wa...