Asian Journal of Animal and Veterinary Advances1683-99191996-3289Academic Journals Inc.10.3923/ajava.2017.247.253GogerHuseyin DemirtasSahnur Erdogan YurtogullariSermin 52017125Background and Objective: The sex determination of pure lines of one-day-old chicks was achieved by vent-sexing which has some challenges and the risks, so it was decided that the sex determination of chicks by the feathering rate should be used. In the present study, fast- and slow- feathering of RIR, BAR and L54 genotypes were developed and investigated the effect of feathering rate on egg production and hatching traits. Materials and Methods: Data of body weight and age at first egg, egg number and egg weight up to 43 weeks age were collected from total of 10717 hens and analysed. The following genetic parameters were estimated from a three generation selection study: Age at first egg (AFE), Body Weight at First Egg (BWFE), Egg Number (EN) and Egg Weight (EW) by the Restricted Maximum Likelihood (REML) procedure. Statistical evaluation was performed using one-way analysis of variance and genetic parameters were estimated by the restricted maximum likelihood (REML) procedure for egg production and hatching traits. Results: Mean egg production trait values were determined as follows: 149.42-161.29 days (AFE), 1562.90-1748.10 g (BWFE) 117.54-129.36 eggs (EN) and 54.70-58.93 g (EW). Statistically significant differences (p<0.01) were observed between the genotype groups according to the fertility, embryonic mortality and hatchability values. Predicted heritabilitys for egg production traits ranged from 0.11-0.59 and it was determined that AFE was positively correlated with BWFE except for L54-F and L54-S. The EN was negatively correlated with AFE, BWFE and EW in all genotypes. The AFE was negatively correlated with EW except for RIR-F and L54-S. The BWFE was positively correlated with EW except for RIR-F and RIR-F genotypes. Conclusion: The results of this study showed that one-day-old hybrid chicks from fast-and slow-feathering parent genotypes can be accurately sexed by feathering rate. It was observed that fast-feathering genotypes were generally higher than slow ones with respect to egg production and hatching traits, with the exception of egg weight.]]>Weissmann, A., S. Reitemeier, A. Hahn, J. Gottschalk and A. Einspanier,2013in ovo gender identification.]]>80199205Luo, C., X. Shen, Y. Rao, H. Xu and J. Tang et al.,20123962836288Kaleta, E.F. and T. Redmann,200864391399Mincheva, N., M. Lalev, M. Oblakova, P. Hristakieva and I. Ivanova,2012+) on laying performance, hatchability parameters and some body measurements in two lines of white plymouth rock hens.]]>28405414Khosravinia, H. and M. Manafi,2016+) genes: Effects of environmental stressors on physiological adaptive indicators up to 56 h posthatch.]]>9517191725Khosravinia, H.,2008+) feathering gene on growth performance and skeletal dimensions of broiler chickens selected for cut up carcass value.]]>2914NRC.,19949th Edn.,Molapo, S.M. and P. Kompi,20166884888Mardia, K.V.,2014Pages: 356Pages: 356Minitab Inc.,1998Boldman, K.G., L.A. Kriese, L.D. Van Vleck, C.P. Van Tassell and S.D. Kachman,1995Lowe, P.C. and V.A. Garwood,19816011231126Harris, D.L., V.A. Garwood, P.C. Lowe, P.Y. Hester, L.B. Crittenden and A.M. Fadly,198463401413Durmus, I., H. Goger, S.E. Demirtas and S. Yurtogullari,201056671Ledvinka, Z., L. Zita, M. Hubeny, E. Tumova, M. Tyller, P. Dobrovolny and M. Hruska,2011565242249Ledvinka, Z., L. Zita, M. Tyller, P. Dobrovolny, L. Klesalova and H. Tyllerova,20142014661471Durmus, I., H. Goger, S.E. Demirtas and S. Yurtogullari,201252945948Flock, D.K., R. Preisinger and M. Schmutz,20012001pp: 5562Gowe, R.S., R.W. Fairfull, I. McMillan and G.S. Schmidt,19937214331448Nurgiartiningsih, V.A.M., N. Mielenz, R. Preisinger, M. Schmutz and L. Schuler,20056998102Pym, R.,20152015Xie, M., L. Liu, J. Xie, W. Tang and Y. Wu et al.,2013258488