STUDY OF PRODUCTIVE AND REPRODUCTIVE TRAITS IN COWS OF ROMANIAN BLACK SPOTTED BREED FROM PRIVATE FARMS IN THE NORTH-EAST DEVELOPMENT'S REGION

I. Gîlcă, Valerica Gîlcă, Anca Roman-Popovici, D. Şumovschi, M.C. Prisacaru

Abstract
The study was conducted on a herd of 325 cows, Romanian Black Spotted breed, exploited in various private farms in the North East Development's region, and analyze the main of productive and reproductive indices. Thus, was pursued quantitative and qualitative milk production in first lactation, body development in second lactation, respectively the age at first calving (VP), dry period (RM), calving interval (CI), service period (SP) and their evolution in the successive lactations (from I to VI).

Key words: Romanian Black Spotted, cattle, indices, reproductive, productive