Siyah Alaca ve Simental ineklerde damızlıkta kalma süresi, sürüden çıkarma nedenleri ve süt verim özellikleri üzerine bir araştırma

Yıl 2018, Cilt: 31 Sayı: 3, 325 - 328, 03.12.2018

Nurcan Karslıoğlu Kara , Mehmet Koyuncu

https://doi.org/10.29136/mediterranean.443409

Cited By: 3

Öz

Son yıllarda süt sığırı yetiştiricileri, Holstein
ırkı ineklere göre daha düşük süt verimli olmalarına rağmen daha yüksek
damızlıkta kalma süresi ve daha düşük hastalık insidansı gibi nedenlerle
Simental ırkı inekleri tercih etmektedirler. Bu doğrultuda bu çalışmanın amacı,
söz konusu tercihin doğruluğunu araştırmak için iki ırk arasında, damızlıkta
kalma süresi, sürüden çıkarma nedenleri ve bazı süt verim özelliklerini
araştırmaktır. Çalışmada
kullanılan tüm veriler Bursa Karacabey TİGEM işletmesinde 2015-2016 yıllarında
sürüden çıkartılan hayvanların kayıtlarından elde edilmiştir. Damızlıkta kalma
süresi Siyah Alaca inekler için 33.6±1.08 ay ve Simental inekler için 33.7±1.21
ay olarak bulunmuştur. Ortalama laktasyon süt verimi (LSV), 305 gün süt verimi
(LSV₃₀₅) ve sağılan gün sayısı (SGS), Siyah Alaca inekler için
sırasıyla; 8515.63±196.507 kg, 7517.98±148.289 kg ve 403.75±9.575 gün, Simental
inekler için, 6079.75±163.126 kg, 5525.71±117.931 kg and 351.40±8.559 gün
bulunmuştur. İki ırk arasında damızlıkta kalma süresi ve sürüden çıkarma
nedenleri arasındaki fark önemli bulunmazken, laktasyon süt veriminin Siyah
Alacalarda Simentallere göre daha yüksek olduğu bulunmuştur. Sonuç olarak yerel
şartlarda süt sığırı yetiştiricileri için doğru ırk seçiminin Siyah Alaca
olduğu söylenebilir.

Anahtar Kelimeler

Damızlıkta kalma süresi, Süt verimi, Sürüden çıkarma, Süt sığırı yetiştiriciliği

A research on longevity, culling reasons and milk yield traits in between Holstein and Simmental cows

Öz

In recent years, dairy cattle breeders prefer Simental cows due to higher breeding time and lower incidence of disease, although they have lower milk yield than Holstein cows. Thus, the aim of the present study was to investigate longevity, the culling reason and some milk yield traits in between the two breeds to investigate the accuracy of this preference. All data that used were collected from herd (Bursa–Karacabey state farm) records belongs to culling cows in two years (2015-2016) and analysed. Longevity for Holstein and Simmental cows were determined 33.6±1.08 month and 33.7±1.21 month. Average lactation milk yield (LMY), 305 days milk yield (305-dMY) and days in milk (DIM), were found to be 8515.63±196.507 kg, 7517.98±148.289 kg and 403.75±9.575 days respectively for Holstein cows and 6079.75±163.126 kg, 5525.71±117.931 kg and 351.40±8.559 days for Simental cows. While the differences between two breeds in terms of longevity and culling reasons were not significant, Holstein cows had higher milk yield than Simmental cows. As a conclusion, it can be said that Holstein cows is the best choice for dairy breeders in local circumstances.

Anahtar Kelimeler

Longevity, Milk yield, Culling, Dairy cow breeding

Kaynakça

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