Bali Damızlık Sığır (Bos javanicus) Sürülerinde Akrabalık Durumu

Öz

Akrabalı yetiştirme çiftlik hayvanlarında verim özellikleri üzerinde olumsuz etkilere sahiptir. Bu çalışmada Endonezya'da yetiştirme merkezinde (çiftliğindeki) yetiştirilen Bali (Bos javanicus) sığırlarının akrabalık durumu 2013 - 2018 yılları arasındaki kayıtlara dayalı olarak ortaya konmuştur. Üvey kardeş ebeveynlerin (ID: 0874 ve 0881) birleşmesinden 2 akrabalı yetişmiş buzağı (ID: 0991 ve 0812) elde edilmiştir. Böylece bir akrabalı yetişmiş buzağı (ID: 0812) doğumdan bir gün sonra öldü. Böylece akrabalı yetişme katsayısı (Fx) her iki buzağıda da 0.125. Genel olarak akrabalı yetişmiş sığırların doğumda ve ergin yaştaki performansı ebeveynlerinden düşük olmaktadır.

Anahtar Kelimeler

• Bali sığır
• Akrabalı yetiştirme katsayısı
• Akrabalı yetişmiş buzağı
• Yetiştirme merkezi

The Inbreeding Case of Bali Cattle (Bos javanicus) at Breeding Station

Abstract

Highly inbreeding level in the livestock had negative effect to productivity traits. This study was carried out to report first inbreeding case of Bali cattle (Bos javanicus) based on the records data from year 2013 to 2018 at breeding center of Indonesia. Two inbred calves (ID: 0991 and 0812) were born from the inbreeding mating between paternal halfsib parental (ID: 0874 and 0881). One inbred calf (ID: 0812) was dead one day after birth. The inbreeding coefficient (Fx) in both inbred calves were 0.125. It was seen that birth and adult performances in the inbred cattle were lower than their parents. It can be concluded that the level inbreeding 12.5% in Bali cattle had negative effect of low performance and calf’s dead case.

Keywords

• Bali cattle
• Inbreeding coefficient
• Breeding center
• Inbred calves

Kaynakça

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