ATAK-S Erkek Civcivlerinin Farklı Yetiştirme Sistemlerinde Büyüme Performansları ve Karkas Özelliklerinin Belirlenmesi

Bu çalışmada, yumurta verim yönlü bir hat olan ATAK-S genotipi erkek civcivlerinin kapalı ve serbest (free range) yetiştirme sistemlerinde et verim yönü incelenmiştir. Çalışma, Kahramanmaraş Sütçü İmam Üniversitesi (KSÜ), Hayvansal Üretim Uygulama ve Araştırma Merkezinde,12 hafta süre ile yürütülmüştür. Kapalı yetiştirme sistemi grubunda 3 tekerrür, her tekerrür için 7,5 m² kapalı alan, serbest (free range) yetiştirme sistemi grubunda yine 3 tekerrür, her tekerrür için 7,5 m² kapalı alan ve buna ilave olarak 31,25 m² yonca ekili serbest gezinti alanı bırakılmıştır. Her tekerrürde 28 adet, toplam 168 adet civciv kullanılmıştır. Her iki muamele grubuna aynı yemler sınırsız verilmiştir. Çalışmada kapalı ve serbest yetiştirme sistemi için; canlı ağırlık, yem tüketimi, yem dönüşüm oranı, yaşama gücü, karkas-parça oranları, yenilebilir iç organ ağırlıkları-oranları, testis ağırlıkları-oranları, rektal sıcaklık ve tonik immobilite süreleri incelenmiştir. İncelenen özelliklerden but oranı serbest yetiştirme sisteminde daha fazla, boyun oranı ise kapalı yetiştirme sistemde daha fazla bulunmuş, incelenen diğer özellikler arasında istatistiki olarak fark bulunmamıştır.

Anahtar Kelimeler:

ATAK-S erkek civcivleri, Yetiştirme sistemleri, Besi performansı, Karkas özellikleri

Determination of Growth Performance and Carcass Characteristics of ATAK-S Male Chicks in Different Raising Systems

In this study, meat production performance of male chicks of the ATAK-S genotype, which is an egg-yielding line, were examined in both indoor and free range raising systems. The study was carried out at the Kahramanmaras Sutcu Imam University (KSU), Animal Production Application and Research Centre for 12 weeks. Each treatment was represented by 3 replications containing of 28 male chicks (84 male chicks per treatment). During the indoor treatment, the chicks were raised in floor pens in a conventional house (3.7 birds/m2). In the free-range treatment, the chickens were housed in a similar indoor house (3.7 birds/m2); in addition, they also had a free-range clover paddock (0.9 birds/m2). All birds were provided with the same diets as ad-libitum. Results showed that the thigh rate of the chickens in the free-range treatment were higher than that of the chickens in the indoor floor treatments, but the neck rate of the chickens in the free-range treatment were lower than that of the chickens in the indoor floor treatments. There was no significant effect of the free-range raising system on live weight, feed intake, feed conversion ratio, survival rate, eviscerated carcass, breast, thighs, wings, back rates, edible giblets, testes weight, rectal temperature and tonic immobility.

Keywords:

Atak-S male chicks Raising systems, Growth performance, Carcass characteristics, Welfare,

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