This study was conducted to
determine the genetic correlation and heritability for age at sexual maturity,
body weight at sexual maturity, egg yield, egg weight, egg shape index and L*,
a*, b* values of egg shell in a Barred Rock line was applied selection. For
this aim, a total of 1622 pedigreed Barred Rocks were selected. The present
estimated heritability values for investigated traits were found between
moderate-to-high. However, the heritability of egg yield, eggshell color and
body weight at sexual maturity were found lower than those of other traits. It
was calculated positive correlations among monthly egg yields, especially
between egg yield at the second month with total egg yield. As a conclusion,
selection studies did not cause much decrease in genetic variation of studied
traits, except for egg yield and body weight at sexual maturity. Monthly egg
yield data can be used selection studies.
Genetic correlation heritability layer breeder performance traits
Birincil Dil | İngilizce |
---|---|
Konular | Veteriner Cerrahi |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 9 Eylül 2019 |
Yayımlandığı Sayı | Yıl 2019Cilt: 66 Sayı: 4 |