Yetiştirici Elinde Bulunan Zom Koyunlarının Bazı Laktasyon Özellikleri ve Laktasyon Süt Verimini Etkileyen Faktörler

Öz

Bu araştırma, Zom koyunlarının laktasyon süt verimini, laktasyon süt verimine etki eden faktörleri ve bazı

laktasyon özellikleri arasındaki ilişkileri araştıran ve tanımlayan ilk bilimsel çalışmadır. Araştırma, Diyarbakır,

Şanlıurfa ve Mardin şehirlerinin çevrelediği Karacadağ bölgesinde bulunan Çınar ilçesinde yürütülmüştür. Üç

farklı sürüde bulunan ve 2010 ve 2011 üretim yıllarında toplam 303 baş koyuna ait 309 tamamlanmış laktasyon

kaydı analizlerde kullanılmıştır. Ortalama (±SH) laktasyon süresi (LS), laktasyon süt verimi (LSV) ve günlük

ortalama süt verimi (GOSV) sırasıyla 171±1.8 gün, 130±2.2 kg and 770±22.7 g olarak tespit edilmiştir. Etkileri

incelenen faktörlerden yıl, sürü ve kuzulama mevsimi LU üzerinde (P<0.05), sürü, kuzulama sezonu ve laktasyon

sırası ise LSV ve GOSV üzerinde önemli etkiye sahip olmuştur (P<0.05).

Araştırma sonucuna göre, koyunların taze meradan daha iyi yararlanarak daha yüksek LSV’ye sahip olmaları için,

koç katım zamanının kuzulamanın bahar mevsimine yakın aylarda gerçekleşebilecek şekilde ayarlanması gerekmektedir.

Kuzulamadan sonraki ilk üç ayda üretilen süt miktarının, toplam laktasyon süt veriminin tahmininde ve

dolayısıyla laktasyon süt veriminin erken seleksiyonunda kullanılabileceği sonucuna varılmıştır.

Anahtar Kelimeler

• Zom koyunu, Laktasyon süt verimi, Çevre faktörleri, Erken seleksiyon

Factors Affecting Lactation Milk Yield and Some Lactation Characteristics of Zom Sheep in Farmer Conditions

Öz

This is the first scientific study for investigating and describing relationships among some lactation

characteristics and environmental factors influencing lactation milk yield of Zom sheep in Turkey. The research

was carried out in Çınar County in the distric of Karacadağ surrounded by Diyarbakır, Şanlıurfa and Mardin provinces.

A total of 309 completed lactations belonging to 303 Zom ewes in three flocks for the years 2010 and 2011

were included in the analyses. Overall means (±SE) of lactation milk yield (LMY), lactation length (LL) and average

daily milk yield (ADMY) were 171±1.8 days, 130±2.2 kg and 770±22.7 g, respectively. LL was significantly

affected by year, flock and lambing season (P<0.05) while LMY and ADMY were significantly affected by flock,

lambing season and parity (P<0.05).

It was concluded that the matings should be arranged so that the lambings occur in month(s) closer to spring season

in order to increase LMY by means of having ewes taken benefits of fresh pasture. Milk yield records in the first

three months of lactation can be used to predict LMY and be used as an early selection criteria for increasing LMY.

Anahtar Kelimeler

• Zom sheep,Lactation milk yield,Environmental factors,Early selection

Kaynakça

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