Burdur Mehmet Akif Ersoy University, Burdur Food Agriculture and Livestock Vocational School, Department of Food Processing, 15030, Burdur, Turkey.
Kırşehir Ahi Evran University, Agriculture Faculty, Department of Animal Science, 40100, Kırşehir, Turkey.
Trop Anim Health Prod. 2021 Oct 30;53(6):526. doi: 10.1007/s11250-021-02969-9.
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.
本研究旨在确定土耳其泰克地区（安塔利亚、布尔杜尔、德尼兹利和伊斯帕尔塔省）饲养的荷斯坦奶牛的产奶量和繁殖特性、遗传趋势和育种值。本研究使用了 2010 年至 2017 年期间的 9844 份荷斯坦弗里生奶牛的泌乳和繁殖记录。为此，根据繁殖特性的产犊间隔（CI）和每配种受胎次数（NIC）以及泌乳期长度（LL）、305 天产奶量（305 DMY）和干奶期（DP）计算了方差分量和遗传力。结果表明，CI、NIC、LL、305 DMY 和 DP 分别为 0.11、0.10、0.11、0.33 和 0.01。305 DMY 的遗传趋势为 111.5 kg/年。2005 年至 2009 年期间平均育种值为负值，2010 年至 2015 年期间为正值。总之，本研究中 305 DMY 的遗传力普遍高于土耳其其他研究报告的数值，且 305 DMY 的遗传趋势为正值且较高，表明泰克地区荷斯坦奶牛的育种值较高。因此，可以建议在该地区继续进行荷斯坦奶牛的系谱育种，仔细记录系谱和产量记录，为具有优良产量特性的动物估计育种值，并将其用于后代，将当前的生物技术方法纳入育种计划，以提高选择效率。
