ORGANİK VE KONVANSİYONEL SÜT SIĞIRI İŞLETMELERİNDE YETİŞTİRİLEN SIĞIRLARIN VERİM ÖZELLİKLERİNİN VE SAĞLIKLARININ KARŞILAŞTIRILMASI

Son yıllarda organik süt sığırı işletmesi sayısında ve süt üretiminde artış görülmektedir. Buna paralel olarak, organik işletmelerde yetiştirilen sığırların döl, süt verimleri, sağlık ve refahlarını konvansiyonel yetiştirme sistemiyle karşılaştıran çalışmalar gerçekleştirilmiştir. Bu çalışmalardan elde edilen bulgulara göre, organik sığırların süt verimi, konvansiyonellere göre önemli miktarda daha düşük olmuştur. Döl verimi, iki yetiştirme sisteminde birbirine yakındır. Organik işletmelerde yetiştirilen sığırların muhtelif dönemlerdeki canlı ağırlıkları daha düşük, yemden yararlanmaları ise daha yüksek bulunmuştur. Çoğu çalışmada, organik yetiştirilen sığırların sağlık ve refahlarının daha iyi olduğu bildirilmekle birlikte, bunun aksi durumunu bildiren az da olsa çalışmalara da rastlanmaktadır. İlgili çalışmaların tümünde, metabolik hastalıklar bakımından organik yetiştirilen sığırların daha iyi durumda olduğu bildirilmiştir.

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