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

Makale detayları

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

Yazarlar:

Muammer TİLKİ | Mustafa SAATCI | Mehmet ÇOLAK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2008 Vol.32 Issue 4, pp.287-292

Belge Tipi:

Makale

Yayın Tarihi:

3/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000767947

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Anahtar kelimeler:

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.

 

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.

Makale detayları

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

Yazarlar: Muammer TİLKİ | Mustafa SAATCI | Mehmet ÇOLAK

Yayıncı: TUBITAK

Dergi: Turkish Journal of Veterinary and Animal Sciences 2008 Vol.32 Issue 4, pp.287-292

Belge Tipi: Makale

Yayın Tarihi: 3/2008

Belge Dili: Türkçe

Document ID (Org No.): 2000767947

Sıklık: İki Aylık

eISSN: 1303-6181

pISSN: 1300-0128

Brown Swiss

birth weight

genetic parameters

breeding values

maternal effect

Sayı

Yazarlar:

Muammer TİLKİ | Mustafa SAATCI | Mehmet ÇOLAK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2008 Vol.32 Issue 4, pp.287-292

Belge Tipi:

Makale

Yayın Tarihi:

3/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000767947

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128