Tamer SEZENLER, Ertan KÖYCÜ, Yalçın YAMAN, AYHAN CEYHAN, Mustafa KÜÇÜKKEBAPÇI, Mehmet Akif YÜKSEL

Reproductive and Growth Characteristics During The First Age of Kıvırcık, Sakız and Gökçeada Indigenous Sheep Breeds

Bu çalışma, Bandırma Koyunculuk Araştırma İstasyonunda yetiştirilen Kıvırcık, Sakız ve Gökçeada yerli koyun ırklarımızın ilk yaş üreme özellikleri ve büyüme performansını belirlemek amacıyla yapılmıştır. Araştırmada ilk yaş üreme özellikleri için 15 baş Kıvırcık, 8 baş Sakız ve 10 baş Gökçeada dişi kuzu, büyüme özellikleri için ise 16 baş Kıvırcık, 12 baş Sakız ve 11 baş Gökçeada dişi kuzunun verileri kullanılmıştır. Kızgınlık tespitleri kuzuların beşinci ayını doldurması ile beraber arama koçları ile on iki saat arayla günde iki kez yapılmıştır. Kıvırcık, Sakız ve Gökçeada kuzularında ilk kızgınlık canlı ağırlığı sırasıyla; 37,93; 33,35 ve 29,75 kg, ilk kızgınlık yaşı; 315, 320 ve 337 gün, kızgınlık süresi; 30,99; 25,85 ve 20,28 saat, kızgınlık siklusu; 16,59; 17,91 ve 17,76 gün bulunmuştur. Kıvırcık, Sakız ve Gökçeada dişi kuzuların doğum ağırlığı sırasıyla; 3,64; 3,90; 3,28 kg, sütten kesim ağırlığı; 31,01; 25,44 ve 23,67 kg, altıncı ay canlı ağırlığı; 32,87; 26,95 ve 24,15 kg, bir yaş canlı ağırlığı; 39,01; 30,95 ve 30,27 kg ve günlük canlı ağırlık artışı; 0,271; 0,257 ve 0,202 kg bulunmuştur.

Kıvırcık, Sakız ve Gökçeada Yerli Irk Dişi Kuzuların İlk Yaş Üreme ve Büyüme Özellikleri

This study was conducted to determine first age reproduction characteristics of indigenous Kıvırcık, Sakız and Gökçeada sheep breeds and growth performances of ewe lambs which have been kept in Bandırma Sheep Research Station (BSRS). The data of reproduction characteristics of ewes and growth characteristics of lambs were collected on 15 Kıvırcık, 8 Sakız and 10 Gökçeada ewes, and on 16 Kıvırcık, 12 Sakız and 11 Gökçeada lambs, respectively. After the lambs completed their fifth month ages, estrus detection was carried out with a teaser ram twice a day with 12 hour intervals. For the Kıvırcık, Sakız and Gökçeada lambs, the first oestrus weights were 37.93, 33.35 and 29.75 kg; first oestrus ages were 315, 320 and 337 days; oestrus durations were 30.99, 25.85 and 20.28 hours and the duration of the oestrus cycles were 16.59, 19.91 and 17.76 days, respectively. The birth weights of Kıvırcık, Sakız and Gökçeada lambs were found to be 3.64, 3.91, 3.28 kg; the weaning weight (WW), 31.01, 25.44 and 23.67 kg, the six month live weight (SMLW), 32.87, 26.95 and 24.15 kg, the yearling live weight (YLW), 39.01, 30.95 and 30.27 kg and the average daily weight gain (ADWG), 0.271 0.257 and 0.202 kg, respectively

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