ÇİNKO VE METİYONİNİN BUZAĞILARDA PERFORMANS ÜZERİNE ETKİSİ

Yıl 2011, Cilt: 20 Sayı: 3, 195 - 202, 01.12.2011

İsmail Ülger Osman Küçük

Öz

Bu çalışmanın amacı buzağılara süt ile birlikte verilen çinko (Zn) ve metiyoninin (Met) canlı performansa ve bazı kan parametrelerine etkisinin değerlendirilmesidir. Çalışmada her grupta 20 adet olmak üzere toplam 80 adet yeni doğmuş Holstein buzağı (erkek dişi karışık) kullanılmıştır. Buzağılara doğduktan sonra 3 gün kolostrum verilmiştir. 3. günden sonra buzağıların canlı ağırlıkları alınarak sütten kesilinceye kadar (8 hafta) sırasıyla sadece süt, 30 mg/kg Zn, %1 Met, ve 30 mg/kg Zn+ %1 Met ilaveli süt tüketmeleri sağlanmıştır. Gruplardaki buzağı canlı ağırlıkları uygulamalardan etkilenmemiştir (P≥0.151). Genel olarak canlı performans (cidago yüksekliği, kalça ölçüsü, göğüs ölçüsü) sütlerine Zn ve Met’in kombine halinde katıldığı buzağı gruplarında daha yüksek bulunmuştur (P≥0.005). Buzağı grupları arasında kan parametreleri bakımından serum Cu konsantrasyonu hariç anlamlı farklar bulunamamıştır (P≥0.063). Sütlerine Zn ve Zn+Met kombinasyonu katılan buzağı gruplarının serum Zn düzeyleri diğer gruplara (kontrol ve Met) oranla bir miktar yükselmiş ancak bu istatistiki manada anlamlı olmamıştır (P=0.934). Çalışma sonuçlarına göre yeni doğan buzağıların sütlerine çinko ve metiyoninin, sırasıyla 30 mg/kg ve %1 düzeyinde kombine şekilde ilave edilmelerinin büyüme için uygun olacağı söylenebilir

Anahtar Kelimeler

Buzağı, çinko, metiyonin, performans

Effects of Zinc and Methionine on Live Performance of Calves Consuming Milk

Öz

The objective of the study was to investigate the effects of zinc (Zn) and methionine (Met) on live performance and some blood parameters of calves consuming milk. A total of 80 Holstein calves (male and female mixed) were fed colostrums on first 3 days after delivery and assigned into 4 groups 20 per group, namely control (no supplement, only milk), milk plus 30 mg/kg Zn, milk plus 1% Met, and milk plus 30 mg/kg Zn and 1% Met until weaning (8 weeks). Body weight changes were similar between groups (P≥0.151). Live performance in general (wither height, hearth girth, hip width) improved better in calves supplemented with a combination of Zn and Met (P≥0.005). Except Cu concentrations, blood parameters remained similar among treatments (P≥0.063). Statistically insignificant as it was (P=0.934), zinc inclusion in Zn and Zn+Met group caused an increase in serum Zn concentrations. Therefore, it is recommended that new born calves should be supplemented with Zn at 30 mg/kg with Met at 1% for a better growth performance

Anahtar Kelimeler

Calf, Methionine, Performance, Zinc

Kaynakça

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