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Genetic parameters and genetic trend of some yield traits of Holstein Friesian cattle population in Tropical Region (Teke)       
Yazarlar
Yahya Öztürk
Türkiye
Prof. Dr. Mehmet SARI Prof. Dr. Mehmet SARI
Kırşehir Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Serdar GENÇ Doç. Dr. Serdar GENÇ
Türkiye
Özet
This study was conducted to determine the milk yield and reproduction characteristics, genetic trend, and breeding values of Holstein cattle reared in Teke region (Antalya, Burdur, Denizli, and Isparta provinces) of Turkey. In this study, 9844 lactation and reproductive records of Holstein Friesian dairy cattle for the period of 2010 to 2017 were used. For this purpose, variance components and the heritability were calculated based on calving interval (CI) and number of inseminations per conception (NIC) from fertility characteristics and lactation length (LL), 305-day milk yield (305 DMY), and dry period (DP). It was determined that CI, NIC, LL, 305 DMY, and DP were 0.11, 0.10, 0.11, 0.33, and 0.01, respectively. The genetic trend of 305 DMY was 111.5 kg/year. The average breeding value was negative between 2005 and 2009 and positive between 2010 and 2015. In conclusion, the fact that especially 305 DMY heritability was generally higher in this study than the values reported by other studies conducted in Turkey and the genetic trend for 305 DMY was positive and high indicates that breeding value of Holstein cattle in the Teke region is high. Therefore, it can be recommended to continue the pedigree breeding of Holstein cattle in this region, keep pedigree and yield records meticulously, estimate breeding values for selecting animals with superior yield characteristics and using them in future generations, and include current biotechnological methods in breeding program to increase the efficiency in selection.
Anahtar Kelimeler
Breeding value | Genetic trend | Heritability | Teke region
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı TROPICAL ANIMAL HEALTH AND PRODUCTION
Dergi ISSN 0049-4747
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 12-2021
Cilt No 53
Sayı 6
Doi Numarası 10.1007/s11250-021-02969-9
Makale Linki http://dx.doi.org/10.1007/s11250-021-02969-9