Birth and weaning weights of Awassi lambs raised in the GAP International Agricultural Research and Training Center

ŞİRELİ H. D., Vural M. E., Karatas A., Akca N., KONCAGÜL S., TEKEL N.

ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.62, sa.2, ss.139-145, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 62 Sayı: 2
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1501/vetfak_00000020587
  • Dergi Adı: ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.139-145
  • Anahtar Kelimeler: Awassi sheep, environment, genetic parameters, lamb growth, phenotypic evaluation, GROWTH-CHARACTERISTICS, REPRODUCTIVE-PERFORMANCE, TRAITS, SLAUGHTER
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, the data were collected from 1271 heads of Awassi lambs raised in the GAP International Agricultural Research and Training Center in Diyarbakir, Turkey. Birth and weaning weight (at 90 days) of lambs were measured and average daily weight gain from birth to weaning was calculated. The effect of the years and season of lambing, age of dam, sex and birth type on birth weight (BWT), weaning weight (WWT) and average daily weight gain (ADWG) from birth to weaning were investigated. Overall means were 4.81 +/- 0.022 kg for BWT, 22.99 +/- 0.196 kg for WWT and 201.67 +/- 1.173 g for ADWG. The all tarits in the analyses were significantly (P<0.05) affected by all factors in the model. In addition, lambs born heavier grew faster and reached heavier WWT (p<0.01). Based on the single and multiple trait analyses, heritability estimates ranged from 0.21 to 0.25 for BWT, from 0.13 to 0.17 for WWT and from 0.13 to 0.17 for ADWG. Estimates of genetic correlations between BWT with WWT and ADWG were 0.61 and 0.61, respectively.