Some reproductive and growth traits of crossbred genotypes produced by crossing local sheep breeds of Kivircik × White Karaman and Chios × White Karaman in steppe conditions

ÜNAL N., Akcapinar H., Atasoy F., Aytac M.

Archiv fur Tierzucht, cilt.49, sa.1, ss.55-63, 2006 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 1
  • Basım Tarihi: 2006
  • Dergi Adı: Archiv fur Tierzucht
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.55-63
  • Anahtar Kelimeler: Breed crossing, Live weight, Reproductive traits, Sheep, Steppe conditions, Survival rate
  • Ankara Üniversitesi Adresli: Evet

Özet

The aim of this study was to investigate some production traits of crossbred genotypes produced for lamb production by crossing local sheep breeds of Kivircik (K) × White Karaman (W) and Chios (C) × White Karaman in steppe conditions. W breed is raised in steppe conditions while K and C breeds are raised in Mediterranean climate conditions in Turkey. A total of 340 ewes was used through 3 years. The litter size for W, KWF1 and CWF 1 ewes were 1.26, 1.19 and 1.52 (P<0.05), respectively. The least squares means of W, KW F2. KW B1, CW F2 and CW B1 lambs were 91.2, 95.7, 95.6, 87.3 and 94.2% for survival rate at weaning (90 days); 4.4, 4.3, 4.1, 4.2 and 4.1 kg for birth weight; 21.1, 20.3, 19.6, 20.3 and 19.9 kg for weaning weight; 31.9, 29.4. 30.3, 30.5 and 30.1 kg for 180 day weight, respectively. The differences among genotypes for survival rates and growth performance of lambs were not statistically significant (P>0.05). The results indicated that Chios crossbred ewes had the highest reproductive performance while all genotypes had similar performance in terms of survival and growth of lambs in steppe conditions.