STUDY OF ROMANIAN YELLOW SPOTTED BREED PRODUCTIVE PERFORMANCES FROM BISTRIŢA-NĂSĂUD COUNTY

E. Jurco, Gh. Mureşan, Şt. Cîrcu

Abstract
This research aims to highlight the main productive traits in cattle raised for milk production in Bistrita-Nasaud county, while Romanian Spotted breed has the largest share with Romanian Black Spotted breed. A number of 7399 milk cows were taken into research which produced a total of 24508 lactations. Production and reproduction data were obtained through the official control of milk production, the existing databases at UARZ units (origin, reproduction and production) from the named county and there were taken, processed and statistically interpreted. The variability of milk production at Romanian Spotted breed in Bistriţa-Năsăud holdings was very pronounced, with a range between 584 kg and 10.400 kg milk, with an average length of service of four lactations and birth rate that is at 85.78%.

Key words: Romanian Yellow Spotted breed, milk production, evolutions