RESEARCHES CONCERNING THE COMPARISON OF MILK PRODUCTION BETWEEN CATTLE OF AUSTRIAN BROWN CATTLE (ÖSTERREICHISCHES BRAUNVIEH) AND BRUNA OF MARAMURES BREEDS

I. Gîlcă, Valerica Gîlcă, C. Pascal, T. Zus, P. Avram, C. Gînga

Abstract
    The main aim of this study was to compare the milk performance realized by cattle of Österreichisches Braunvieh breed imported from Austria and the indigenous breed Bruna of Maramures. The analysis was performed into a farm at the first and second lactations. The imported dairy cattle (Österreichisches Braunvieh breed) were compared with contemporaries indigenous breed (Bruna of Maramures) calved in the same period. Both breeds were kept in the same conditions and with the same feeding. The first lactation records were analyzed according to the following linear model: Y_ij = µ + H_i + C_j + e_ij. The second lactation records were analyzed according to the following linear model: Y_ijk =µ + H_i + C_j + J_k + e_ijk. The difference in milk production between Österreichisches Braunvieh and Bruna of Maramures breeds, at first and second lactations, were not statistically significant. The cattle Österreichisches Braunvieh compared Bruna of Maramures breeds achieved higher fat, protein and lactose percentage at the first lactation (4.25% and 3.99%, 3.32% and 3.26%, respectively 4.74% and 4.62%) and at the second lactation (4.16% and 4.03%, 3.40% and 3.26%, respectively 4.99% and 4.82%). These differences were statistically highly significant (P<0.01).