Münevver AKGÜNDÜZ, Nihat MERT, Handan GÜNDÜZ, Vedat AKGÜNDÜZ

Merinos melezi koyunlarda bazı biyokimyasal kan parametreleri ile verim arasındaki ilişkiler 1-Eritrosit potasyum ve glutatyon

Farklı koyun ırklarında biyokimyasal parametrelerle verim arasındaki ilişkileri araştırmak için planlanan bu çalışmada, Bandırma Koyunculuk Araştırma Enstitüsü Müdürlüğü'nde yetiştirilen dört farklı etçi koyunla melezlenmiş toplam 111 Merinos koyun canlı materyal olarak kullanıldı. 31 Hampshire Down x Merinos, 33 Dorset Down x Merinos, 27 Siyah Başlı Alman (SBA) x Merinos ve 20 Border Leicester x Merinos melezi koyunun kanları alındı.Tüm kanda glutatyon (GSH) ile eritrosit potasyum ($K^+$) düzey ve tipleri saptandı. Koyunlarda verini özellikleri olarak kirli yapağı ağırlıkları ve kuzu doğum ağırlığı ile biyokimyasal parametreler arası ilişkiler bulundu. SBA x Merinos melezlerinde yapağı verimi ile yüksek glutatyon ($GSH^H$) ve düşük potasyum (LK) düzeyleri, Dorset Down x Merinos melezlerinde ise düşük glutatyon ($GSH^h$) ile kuzu doğum ağırlığı arasında önemli ilişkiler hesaplandı.

Correlation between biochemical parameters and production traits in merino crosses sheep 1-Erythrocyte potassium and glutathione

To determine the relationship between biochemical parameters and production traits in sheep, 111 sheep raised in Bandırma Sheep Research Institute were used as living material. Blood samples of 31 Hampshire Down x Merino, 33 Dorset Down x Merino, 27 German Black Headed x Merino and 20 Border Leicester x Merino crosses were taken. The levels and types of blood glutathione (GSH) and erythrocyte potassium ($K^+$) were determined. Correlations between some production traits such as greasy fleece weight and lamb birth weight were estimated. Statistical significance was found in greasy fleece weight and high glutathione ($GSH^H$) and low potassium (LK) SBA x Merino crosses, but in Dorset Down x Merino crosses only low glutathione ($GSH^h$) type was shown to have significance with regards lamb birth weight.

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