Effects of genotype and egg weight on hatchability traits and hatching weight in Japanese quail

ALKAN S., KARABAĞ K., GALİÇ A., BALCIOĞLU M. S.

SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE, cilt.38, sa.3, ss.231-237, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 38 Sayı: 3
  • Basım Tarihi: 2008
  • Dergi Adı: SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.231-237
  • Anahtar Kelimeler: Coturnix coturnix japonica, egg weight, hatching weight, fertility, hatchability, PARENTAL AGE, SIZE, PERFORMANCE, GROWTH
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The effects of genotype and egg weight on hatching weight, fertility, hatchability of fertile eggs and incubated eggs were investigated in Japanese quail. The birds were obtained at an age of 20 weeks from four genetic lines selected for I I generations for either a high (HL) or a low body weight (LL) at five weeks of age, a randomly bred control line (C) and a layer line (L) selected for egg production over 120 days. Eggs were allocated according to their weight to < 10.0 g, 10.1 - 11.0 g, 11.1 - 12.0 g, 12.1 - 13.0 g and > 13.1 g groups. There was a significant difference between groups in terms of hatching weight, fertility, hatchability of fertile eggs and hatchability of incubated eggs. The highest hatching weights were recorded in the > 13.1 g egg weight group. Genotype affected egg weight significantly, with the highest egg weights recorded in the HL genotype and lowest in the LL genotype. There was a significant positive phenotypic correlation (r = 0.72) between egg weight and hatching weight, and hatching weight increased with an increase in egg