AI Summary & Key Takeaways
AI InsightIt was found that the survival rate were 84.1 and 64.7% for experimental groups and 96.8 and 73.0% for control group at the first and second week respectively.
📌 3 Key Takeaways
Abstract
This study was carried out to investigate of possibilities of establishing inbred lines in quail, for producing high productive hybrids. The effects of inbreeding on reproduction and production traits were investigated. For the initial and first three generation, the values of fertility were 83.2, 51.8, 72.4 and 72.2% in experimental groups and 84.0, 79.5, 75.9 and 74.2% for control respectively. The hatchability were 81.9, 60.9, 57.5 and 55.7% for experimental groups and 80.6, 67.0, 66.5 and 66.3% for control, and hatching yield were 68.1, 31.5, 41.6 and 40.2% for experimental groups and 67.7, 53.3, 50.0 and 49.2% for control, at the same order. As a result of inbreeding, the survival rate were reduced for the first two weeks at an important level (P<0.01). There were also nonsignificant decrease for the later weeks. It was found that the survival rate were 84.1 and 64.7% for experimental groups and 96.8 and 73.0% for control group at the first and second week respectively. The body weight was 146.8 g for experimental groups and 144.4 g for the control group at $43^ {rd}$ day. Age at the first egg was 51.5 days for experimental groups and 54.6 days for control. The age at first egg was earlier in the experimental groups than the control but egg weight and egg production were low in the experimental groups. According to the 45 days results, egg production were 36.3 and 40.5 for the experimental and control groups, respectively. The values of experimental group were lower than control at the $1^ {st}$ ,$15^ {th}$, $30^ {th}$ and $45^ {th}$days for egg weight. As a conclusion, because of serious negative effects in reproduction, the rate of inbreeding should be increase slowly and gradually in quails.
Özet
Bu arastırma, yüksek verimli hibridler üretmek amacıyla, bıldırcınlarda akraba hatlar olusturma olasılıklarını incelemek için yapılmıs ve akrabalı yetistirmenin üreme ve verim özellikleri üzerine etkisi incelenmistir. Baslangıç ve ilk üç generasyonda döllülük oranı; deneme grubunda sırasıyla %83.2, 51.8, 72.4 ve 72.2, kontrol grubunda %84.0, 79.5, 75.9 ve 74.2 bulunmustur. Çıkım gücü deneme grubunda %81.9, 60.9, 57.5 ve 55.7, kontrol grubunda %80.6, 67.0, 66.5 ve 66.3 bulunmustur. Kuluçka randımanı deneme grubunda %68.1, 31.5, 41.6, ve 40.2, kontrol grubunda %67.7, 53.3, 50.0, ve 49.2 olarak bulunmustur. Akrabalı yetistirme sonucunda yasama gücü ilk iki haftada önemli oranda (P<0.01) düsmüstür. Daha sonraki haftalarda da önemli olmayan düzeyde düsmeler olmustur. Birinci ve ikinci haftada yasama gücü deneme grubunda sırasıyla %84.1, 64.7 ve kontrol grubunda %96.8 ve 73.0 bulunmustur. Canlı agırlık 43. günde deneme grubunda 146.8 g ve kontrol grubunda 144.4 g olarak bulunmustur. lk yumurtlama yası deneme grubunda 51.5 gün, kontrol grubunda 54.6 gün bulunmustur. lk yumurtlama yası deneme grubunda, kontrol grubuna göre daha küçük, fakat yumurta agırlıgı ve yumurta verimi deneme grubunda daha düsüktür. Kırkbes günlük yumurta kayıtlarına göre deneme grubunda yumurta verimi 36.3 adet, kontrol grubunda 40.5 adet olarak tespit edilmistir. Yumurta agırlıgı deneme grubunda ilk, onbesinci, otuzuncu ve kırkbesinci günlerde, kontrole göre daha düsük bulunmustur. Sonuç olarak, bıldırcınlarda özellikle dölverimindeki ciddi olumsuz etkileri nedeniyle akrabalı yetistirme oranının yavas ve kademeli olarak artması gerekmektedir .