Genetic trends of body weight and some scanning traits of Karayaka lambs

DOI: 10.18805/ijar.B-698    | Article Id: B-698 | Page : 1119-1123
Citation :- Genetic trends of body weight and some scanning traits of Karayaka lambs.Indian Journal Of Animal Research.2018.(52):1119-1123
Zafer Ulutaº, Yüksel Aksoy, Aziz ªahin, Emre ªirin, Ugur ªen and Mehmet Kuran ugur.sen@ahievran.edu.tr
Address : Omer Halisdemir University, Faculty of Ayhan Sahenk Agricultural Sciences and Technologies, Department of Animal Production and Technologies, 51240, Nigde, Turkey
Submitted Date : 25-01-2017
Accepted Date : 23-11-2017

Abstract

This investigation was conducted to estimate the breeding values and genetic trends for body weight (BW), scanning fat depth (SFD) and scanning muscle depth (SMD) of Karayaka lambs (n= 1059) at 140 ± 3.36 day of age. Experiments were conducted in a nucleus flock of Karayaka sheep under a selective breeding program to increase productivity at research farm of Gaziosmanpasa University between the years 2006 - 2011. Breeding values were estimated with ASREML software. While genetic trend for BW and SMD showed a smooth ascending trend, SFD exhibited a descending trend throughout the experimental period. The genetic trend for BW, SFD and SMD of Karayaka lambs were observed as 0.433 kg / year, - 0.00686 mm / year and 0.00786 mm / year, respectively. The results showed that applying of a selection program on BW, SMD and SFD characteristics would increase BW and SMD values and decrease SFD value in Karayaka lambs. 

Keywords

Breeding value Genetic trend Karayaka Lamb

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