Indian Journal of Animal Research

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Research Article

Indian Journal of Animal Research, volume 52 issue 8 (august 2018) : 1119-1123

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

Zafer Ulutaº, Yüksel Aksoy, Aziz ªahin, Emre ªirin, Ugur ªen, Mehmet Kuran
1Omer Halisdemir University, Faculty of Ayhan Sahenk Agricultural Sciences and Technologies, Department of Animal Production and Technologies, 51240, Nigde, Turkey
Cite article:- Ulutaº Zafer, Aksoy Yüksel, ªahin Aziz, ªirin Emre, ªen Ugur, Kuran Mehmet (2018). Genetic trends of body weight and some scanning traits of Karayaka lambs. Indian Journal of Animal Research. 52(8): 1119-1123. doi: 10.18805/ijar.B-698.

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. 

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