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

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

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 b...

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Veröffentlicht in:Indian journal of animal research 2018-08 (of)
Hauptverfasser: Ulutaº, Zafer, Aksoy, Yüksel, ªahin, Aziz, ªirin, Emre, ªen, Ugur, Kuran, Mehmet
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creator Ulutaº, Zafer
Aksoy, Yüksel
ªahin, Aziz
ªirin, Emre
ªen, Ugur
Kuran, Mehmet
description 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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