Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey

SARI, Mehmet; TİLKİ, Muammer; ÇOLAK, Mehmet

Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey

Muammer TİLKİ, (Kafkas Üniversitesi, Veteriner Fakültesi, Kars, Türkiye)

Mehmet ÇOLAK, (Bahri Dağdaş Uluslararası Tarımsal Araştırma Enstitüsü, Konya, Türkiye)

Mehmet SARI (Kafkas Üniversitesi, Veteriner Fakültesi, Kars, Türkiye)

Kafkas Üniversitesi Veteriner Fakültesi Dergisi

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Yıl: 2009 Cilt: 15 Sayı: 3 Sayfa Aralığı: 397 - 400 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey

Öz:

Bu çalışma, 1987 ile 1999 yılları arasında kayıt altına alınan 298 Esmer ırk sığırın süt veriminin varyans unsurları, genetik parametreleri ve damızlık değerlerini tahmin etmek için yapılmıştır. Sığırlara ait 305 günlük süt veriminin genetik parametreleri, varyans bileşenleri ve damızlık değeri 2 farklı model kullanılarak elde edilmiştir. Birinci laktasyon kayıtları model 1 ile analiz edilmiş, tesadüfî faktör olarak yalnızca direkt genetik etki dâhil edilmiştir. Tüm laktasyon kayıtları model 2 ile analiz edilmiştir, model 1’den farklı olarak hayvan ile ilgili kalıcı çevresel etkiler de analize dâhil edilmiştir. Birinci laktasyon ve tüm laktasyon süt veriminin kalıtım dereceleri sırasıyla 0.23 ve 0.19 olarak bulunmuştur. 305 günlük süt veriminin fenotipik ve genetik değerlerinde yıllara göre devamlılık gösteren bir eğilim yoktur. Genellikle düzensiz dalgalanmalar gözlenmiştir. Bu düzensiz dalgalanmalar, sürüde herhangi bir standart seleksiyon programı uygulanmadığının göstergesi olabilir.

Anahtar Kelime: genetik eğilim süt verimi damızlık değeri genetik parametreler değişkenlik unsurları İsviçre Esmeri(sığır ırkı)

Konular: Veterinerlik

Bahri Dağdaş uluslararası tarımsal araştırma enstitüsünde yetiştirilen esmer ırk sığırların 305 günlük süt veriminin genetik parametreleri

Öz:

This study was conducted to estimate variance components, genetic parameters and breeding values of 298 Brown Swiss cows milk yield recorded between 1987 to 1999. Estimates of variance components, genetic parameters and estimates of breeding values of 305- day milk yield were obtained for each of animals using two different models. First lactation records were analysed in a model (Model 1) that included direct genetic effect as the only random factor. All lactation records were analysed in a model (Model 2) that was the same as Model 1 but permanent environmental effects associated with animal were also taken into account. The heritability of milk yield for first lactation and all lactations were 0.23 and 0.19 respectively. According to analyses among the years, there was no any constant trend for phenotypic and genetic values of 305 day milk yield. Generally an irregular fluctuation was observed. This irregular fluctuation may demonstrate that there was no any standard selection programme in the herd.

Anahtar Kelime: breeding value genetic parameters variance components Swiss Brown genetic trend milk yield

Konular: Veterinerlik

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	TİLKİ M, ÇOLAK M, SARI M (2009). Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. , 397 - 400.
Chicago	TİLKİ Muammer,ÇOLAK Mehmet,SARI Mehmet Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. (2009): 397 - 400.
MLA	TİLKİ Muammer,ÇOLAK Mehmet,SARI Mehmet Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. , 2009, ss.397 - 400.
AMA	TİLKİ M,ÇOLAK M,SARI M Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. . 2009; 397 - 400.
Vancouver	TİLKİ M,ÇOLAK M,SARI M Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. . 2009; 397 - 400.
IEEE	TİLKİ M,ÇOLAK M,SARI M "Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey." , ss.397 - 400, 2009.
ISNAD	TİLKİ, Muammer vd. "Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey". (2009), 397-400.

APA	TİLKİ M, ÇOLAK M, SARI M (2009). Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 15(3), 397 - 400.
Chicago	TİLKİ Muammer,ÇOLAK Mehmet,SARI Mehmet Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. Kafkas Üniversitesi Veteriner Fakültesi Dergisi 15, no.3 (2009): 397 - 400.
MLA	TİLKİ Muammer,ÇOLAK Mehmet,SARI Mehmet Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, vol.15, no.3, 2009, ss.397 - 400.
AMA	TİLKİ M,ÇOLAK M,SARI M Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. Kafkas Üniversitesi Veteriner Fakültesi Dergisi. 2009; 15(3): 397 - 400.
Vancouver	TİLKİ M,ÇOLAK M,SARI M Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey. Kafkas Üniversitesi Veteriner Fakültesi Dergisi. 2009; 15(3): 397 - 400.
IEEE	TİLKİ M,ÇOLAK M,SARI M "Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey." Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 15, ss.397 - 400, 2009.
ISNAD	TİLKİ, Muammer vd. "Genetic parameters of 305-day milk yield for brown swiss reared in the Bahri Dağdaş international agricultural research institute in Turkey". Kafkas Üniversitesi Veteriner Fakültesi Dergisi 15/3 (2009), 397-400.