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Dergiler / Turkish Journal of Veterinary and Animal Sciences / 2008 / Cilt: 32 - Sayı: 4

Genetic Parameters for Direct and Maternal Effects and Estimation of Breeding Values for Birth Weight in Brown Swiss Cattle

Muammer TİLKİ
Mustafa SAATCI
Mehmet ÇOLAK
Sayfa
287–292
Yayın Tarihi
2008-04-01
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

More detailed accurate data are needed to establish the applied method on the livestock sector in Turkey.

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Amaç & Hipotez:Variance components, genetic parameters, and breeding values for birth weight in Brown Swiss cattle reared in Bahri Dağdaş International Agricultural Research Institute were estimated by REML-BLUP procedures using MTDFREML computer programme.
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Temel Bulgular & Veri:The most detailed model (model 6) provided the best fit to the used dataset.
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Sonuç & Katkı:More detailed accurate data are needed to establish the applied method on the livestock sector in Turkey.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Brown Swiss · birth weight · genetic parameters

Özet

Variance components, genetic parameters, and breeding values for birth weight in Brown Swiss cattle reared in Bahri Dağdaş International Agricultural Research Institute were estimated by REML-BLUP procedures using MTDFREML computer programme. Six different animal models were fitted for the trait ranging from a simple to the most comprehensive model. The most detailed model (model 6) provided the best fit to the used dataset. Heritability was higher in the model without maternal effect. Although maternal effect had a significant place for the data, environmental effect due to dam was not important. Heritability (h2), maternal heritability (m2), and the genetic correlation between these 2 parameters (rAM) were 0.15, 0.06 and 0.92, respectively, according best model (model 6). Breeding values were also calculated for the trait, but no positive or negative change has been observed between years. More detailed accurate data are needed to establish the applied method on the livestock sector in Turkey.

Abstract

Variance components, genetic parameters, and breeding values for birth weight in Brown Swiss cattle reared in Bahri Dağdaş International Agricultural Research Institute were estimated by REML-BLUP procedures using MTDFREML computer programme. Six different animal models were fitted for the trait ranging from a simple to the most comprehensive model. The most detailed model (model 6) provided the best fit to the used dataset. Heritability was higher in the model without maternal effect. Although maternal effect had a significant place for the data, environmental effect due to dam was not important. Heritability (h2), maternal heritability (m2), and the genetic correlation between these 2 parameters (rAM) were 0.15, 0.06 and 0.92, respectively, according best model (model 6). Breeding values were also calculated for the trait, but no positive or negative change has been observed between years. More detailed accurate data are needed to establish the applied method on the livestock sector in Turkey.

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Bu Makaleye Atıf Yap

TİLKİ, M., SAATCI, M., ÇOLAK, M. (2008). Genetic Parameters for Direct and Maternal Effects and Estimation of Breeding Values for Birth Weight in Brown Swiss Cattle. Turkish Journal of Veterinary and Animal Sciences, Cilt: 32 - Sayı: 4, 287–292. https://ajindex.com/articles/122465

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Kaynakça (11)

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