Recently, some investigations on increasing of the cannibalism with the aggressive behaviours in laying flocks have been reported by the researchers who are interested in avian genetics. Therefore, in this study, effects of aggression and social hierarchy on the egg production and behavioural activities food intake, preening, sitting, standing, cage pecking, dustbatching and fearing were investigated. Moreover, differences between genotypes used were also discussed in terms of those traits. Ten white layers Lohmann LSL and ten brown iayers H & N Brown Nick ware used. In the beginning of the study, ten dominant and ten recessive birds from each genotype were classified with respect to social hierarchy and in order to establishing of the social order, one dominant and one recessive bird selected from different genotypes were placed in the same cage. Effects of social hierarchy on all parameters were not significant p>0.05 . Egg production of the white layers 15.7±2.81 was lower than the brown layers 25.6±2.81 and differences between the groups were found to be significant p
Yumurtac ı tavuk ı slahç ı ları n ı n, son yı llarda art ış gösteren kanibalizmi agresyonun artmas ı na bağlamaları bu çalışman ı n ç ı kış noktas ı n ı oluşturmaktad ı r. Bu bağlamda agresyonun ve sosyal. hiyerarşinin yumurta verimine ve baz ı davran ış özelliklerine yem tüketimi, tüy temizleme, yatnıa, ayakta dikilme, tel gagalarna, kum banyosu ve ürkeklik etkisi ara şt ı rı lmış , genotip farkl ığı irdelenmiştir. Sosyal hiyerarşi aç ı sı ndan onu bask ı n ve onu Okinik olmak üzere, on tane beyaz Lohmann, LSL on tane kahverengi H & N, Brown Nick yumurtac ı tavuk çal ışmanin materyal ıni oluşturmuştur. Bu tavuklar kafesiere, biri beyaz bi' ri kahverengi olmak üzere bir bask ı n bir çekinik olarak yerle ştirilmişlerdir. Sosyal hiyerarşinin etkisi tüm özellikler için önemsiz bulunmu ştur p>0,05 . Beyaz yumurtac ı tavuklarda yumıı rta verimi 15,7±2,81 kahverengilere nazaran 25,6±2,81 istatiksel olarak önemli düzeyde daha dü şük gerçekleşmiştir p
Primary Language | Turkish |
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Journal Section | Research Article |
Authors | |
Publication Date | January 1, 2000 |
Submission Date | January 1, 2000 |
Published in Issue | Year 2000 |
Journal of Agricultural Sciences is published open access journal. All articles are published under the terms of the Creative Commons Attribution License (CC BY).