Hüseyin GÖGER, Şahnur ERDOĞAN DEMİRTAŞ, Şermin YURTOĞULLARI

Developments in the performance of brown egg layer parental stocks for superior hybrid

This study examines the effect of grandparent, parent, and hybrid brown chickens, selected from 3 generations of pure lines, on hybrid egg-laying performance. The study was conducted at the Poultry Research Station of Ankara. In the first stage, 4 grandparent lines were derived from 2 pure line base populations. Grandparent lines included 2 male lines (low body weight and high egg weight) and 2 female lines (low body weight and high egg production). In the second stage, grandparent male and female lines were reciprocally crossed to produce 4 parent lines. In the third stage, male and female parental lines were crossed to produce 4 hybrid lines. The average age at first egg of grandparents, parents, and hybrids was 147.68, 154.46, and 157.53 days, respectively; body weight was 1662.95, 1699.19, and 1684.24 g, respectively; average number of eggs was 128.10 (43 weeks), 241.84 (64 weeks), and 303.89 (72 weeks), respectively; and egg weight was 57.46 (43 weeks), 58.28 (64 weeks), and 68.89 g (72 weeks), respectively. As a result, this study produced 4 parent lines with good combining ability for hybrids.

Anahtar Kelimeler:

Laying hen, female line, male line, hybrid material, genetic correlations

Developments in the performance of brown egg layer parental stocks for superior hybrid

Keywords:

Laying hen, female line, male line, hybrid material, genetic correlations,

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