Mehmet Koyuncu

Effects of stall type and bedding materials on lameness and hygiene score and effect of lameness on some reproductive problems in dairy cattle

This study determined the effects of two different stall types and three different bedding materials on lameness during June 2009. Effect of lameness was also examined and was searched between hygiene score and reproductive problems in this study. Seven hundred and nine cows that housed a total of 37 dairy herds were examined, and locomotion score (lameness) of cows that were housed in free-stall was found lower than tie-stall on concrete bedding (P<0.05). Locomotion score was compared only in the free-stall herds between different bedding materials, and there were no significant differences between mean of locomotion scores on concrete, sand or rubber bedding in this study. Herds that have higher mean of hygiene score was seen also have higher mean of locomotion score (r=0.649, P<0.01) and it was determined that retained placenta and repeat breeding were dependent on lameness.

Kuzuların Gelişimi Üzerine Koyunların Doğum Dönemindeki Vücut Kondisyonu ve Canlı Ağırlığın Etkisi

Bu arastirma, 3-4 yaslarindaki 115 bas Kivircik koyunda, dogum donemindeki vucut kondisyon skoru (VKS) ve canli agirligin kuzularin dogum ve sutten kesim agirligina etkilerini belirlemek icin yurutulmustur. Koyunlarda VKS dogumu takip eden gun icinde, bel bolgesinde omurlarin uzerindeki ve cevresindeki kas ve yag birikiminin palpasyonu ile 1-5 araliginda puanlanarak yapilmistir. Veriler VKS ve canli agirligi iceren bir model ve uretim ozelliklerini etkileyen diger faktorler kullanilarak analiz edilmistir. Dogum donemindeki koyunlarin VKS, canli agirligi, kuzularin dogum agirligi, sutten kesim agirligi ve gunluk canli agirlik artisi (dogumdan sutten kesime kadarki donemde) degerlerinin ortalamasi sirasiyla 2.9, 57.1 kg, 4.5 kg, 23.6 kg ve 0.249 kg olarak saptanmistir. Ele alinan ozelliklerden VKS ile koyunlarin canli agirligi, kuzu dogum agirligi ve gunluk canli agirlik artisi arasinda pozitif onemli korelasyonlar 0.440, 0.301 ve 0.219 bulunmustur (P<0.01; P<0.05). VKS’nin kuzularda sadece dogum agirligi uzerine onemli (P<0.01) bir etkiye sahip oldugu saptanmistir. Sonuc olarak Kivircik koyun surusunde gebelik doneminin sonunda VKS’nin 3.0-3.5 olmasi ve ayni zamanda gebelik boyunca da bu degerin altina dusmemesinin onemi ortaya konmustur.