COMPARATIVE STUDY ON THE MILK PRODUCTION IN TWO ROMANIAN BLACK AND WHITE COW POPULATIONS FROM WESTERN ROMANIA

The aim of this study was to compare the milk production of the Romanian Black and White cows raised in two counties (Timiş and Caraş-Severin) from the western Romania. Researches were carried out on 3,579 lactations (3,110 from Timiş and 469 from Caraş-Severin) finished in year 2008. Results showed that cows in CaraşSeverin produced significantly more milk per lactation compared to cows from Timiş (p0.05). On average, cows from Caraş-Severin produced 4710.9 kg milk with 3.939% butterfat, 186.13 kg butterfat, 3.337% protein and 156.92 kg protein per normal lactation, while cows from Timiş produced 4216.5 kg milk with 3.948% butterfat, 166.22 kg butterfat, 3.130% protein, and 131.22 kg protein. Differences for milk production per total lactation were lower, but still significantly different (p