Milk Production Traits and Their Repeatabilitıes of Brown Swiss Cows Raised at Çumra Agricultural Highschool in Konya Province

Authors : Birol DAĞ, İsmail KESKİN, Uğur ZÜLKADİR, Saim BOZTEPE
Pages : 13-17
View : 34 | Download : 19
Publication Date : 2003-06-25
Article Type : Research Paper
Abstract :This study was carried out to determine milk production traits and their repeatabilities of Brown Swiss herd raised at Çumra Agricultural High school in Konya Province. The least squares means of Lactation Period insert ignore into journalissuearticles values(LP);, Lactation Milk Yield insert ignore into journalissuearticles values(LMY);, Average Daily Milk Yield insert ignore into journalissuearticles values(ADMY); and Maximum Daily Milk Yield insert ignore into journalissuearticles values(MDMY); were determined as 266.334.740 days, 2578.7143.230 kg, 9.590.469 kg and 15.190.217 kg respectively. Repeatabilities of LP, LMY, ADMY and MDMY were found as 0.2750.0860, 0.2550.0870, 0.2340.0870 and 0.1720.0880 respectively. The year had a significant effect on LMY insert ignore into journalissuearticles values(p<0.01);, LP, ADMY and MDMY insert ignore into journalissuearticles values(p<0.05);. Effect of Lactation Number on LP insert ignore into journalissuearticles values(p<0.05);, LMY, ADMY and MDMY insert ignore into journalissuearticles values(p<0.01); and effect of calving season on all traits insert ignore into journalissuearticles values(p<0.01); were found to be statis-tically significant.
Keywords : Esmer inek, Süt verim özellikleri, Tekrarlanma Derecesi

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