Genetic trends of body weight and some scanning traits of Karayaka lambs

Creative Commons License

Ulutas Z., AKSOY Y., Sahin A., Sirin E., Sen U., Kuran M.

INDIAN JOURNAL OF ANIMAL RESEARCH, cilt.52, sa.8, ss.1119-1123, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 52 Sayı: 8
  • Basım Tarihi: 2018
  • Doi Numarası: 10.18805/ijar.b-698
  • Dergi Adı: INDIAN JOURNAL OF ANIMAL RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1119-1123
  • Anahtar Kelimeler: Breeding value, Genetic trend, Karayaka, Lamb, SELECTION, SHEEP, PARAMETERS, GROWTH, MUSCLE
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

This investigation was conducted to estimate the breeding values and genetic trends for body weight (BW), scanning fat depth (SFD) and scanning muscle depth (SMD) of Karayaka lambs (n= 1059) at 140 +/- 3.36 day of age. Experiments were conducted in a nucleus flock of Karayaka sheep under a selective breeding program to increase productivity at research farm of Gaziosmanpasa University between the years 2006 - 2011. Breeding values were estimated with ASREML software. While genetic trend for BW and SMD showed a smooth ascending trend, SFD exhibited a descending trend throughout the experimental period. The genetic trend for BW, SFD and SMD of Karayaka lambs were observed as 0.433 kg / year, 0.00686 mm / year and 0.00786 mm / year, respectively. The results showed that applying of a selection program on BW, SMD and SFD characteristics would increase BW and SMD values and decrease SFD value in Karayaka lambs.