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1	Lietuvos žalųjų ir žalmargių galvijų genealoginė struktūra, produktyvumo, reprodukcinių bei eksterjero savybių analizė / The genealogical structure and analysis of the production, reproductive and exterior traits of the Lithuanian Red and Red -and- White cattle Oberauskas, Darius 12 April 2005 (has links) The study was carried out at the Laboratory of Animal Breeding Value Establishment and Selection of Lithuanian Veterinary Academy in the time of postgraduate studies from 2003 to 2005. During the last seven years Lithuanian red and red-and-white controlled dairy cattle breeds average yield increased 41.7%, milk fat production - 50.9%, milk proteins production – 46.1%. Between milk fat and milk proteins was found medium positive correlation coefficient (rp =0.36-0.56; p<0.01), which show milk fat increasing has positive effect to milk proteins increasing. Correlation coefficient between milk production and milk fat, milk proteins is very high (rp =0.87-0.96; p<0.01). The analysis of Variance showed the breed influence on reproductive traits of cow to be statistically reliable (p<0.001). The breed had the greatest influence on cows age during calving. The influence of bulls line on many traits of cows exterior is statistically reliable (p<0,001). Zootechny Pieno baltymingumas Lithuanian Red cattle breed Exterior Eksterjeras Milk fat Pieno riebumas Fertility Milk protein Lietuvos žalųjų galvjų veislė Milk Reprodukcija Pienas