RESEARCHES CONCERNING THE COMPARISON OF MILK YIELD BETWEEN CATTLE OF BRUNA OF MARAMURES AND BRAUNVIEH BREEDS IMPORTED FROM AUSTRIA

I. Gîlcă, Valerica Gîlcă, R.M. Radu Rusu, C. Gîngă, P. Avram, Roxana Mihalache, T. Zus, Elena Ignat

Abstract
   The main aim of this study was to compare the milk performance realized by cattle of 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 (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 Braunvieh and Bruna of Maramures breeds, at first and second lactations, were not statistically significant. The Braunvieh breed cattle achieved higher fat, protein and lactose percentage at the first lactation (4.25% and 3.94%, 3.42% and 3.20%, respectively 4.67% and 4.49%) and at the second lactation (4.29% and 4.02%, 3.42% and 3.21%, respectively 4.59% and 4.43%). These differences were statistically highly significant (P<0.01).

Key words: milk yield, cattle breed, Bruna of Maramures, Braunvieh

CERCETĂRI COMPARATIVE PRIVITOARE LA PRODUCŢIA DE LAPTE INREGISTRATĂ LA VACILE DIN RASA BRUNĂ DE MARAMUREŞ ŞI RASA BRAUNVIEH IMPORTATA DIN AUSTRIA

I. Gîlcă, Valerica Gîlcă, R.M. Radu Rusu, C. Gîngă, P. Avram, Roxana Mihalache, T. Zus, Elena Ignat

Rezumat
   Scopul principal al acestui studiu a fost compararea producţiei de lapte realizată de vacile din rasa Braunvieh importate din Austria şi rasa autohtonă Bruna din Maramureş. Analiza a fost efectuată într-o fermă la prima şi a doua lactaţie. Vacile de lapte importate (rasa Braunvieh) au fost comparate cu rasele indigene contemporane (Bruna din Maramureş) fătate în aceeaşi perioadă. Ambele rase au fost crescute în aceleaşi condiţii şi cu aceeaşi raţie furajeră. Producţiile la prima lactaţie au fost analizate după următorul model liniar: Y_ij =µ + H_i + C_j + e_ij. Producţiile la a doua lactaţie au fost analizate după următorul model liniar: Y_ijk =µ + H_i + C_j + J_k + e_ijk. Diferenţele la producţia cantitativă de lapte între rasele Braunvieh şi Bruna de Maramureş, la prima şi a doua lactaţie, nu au fost semnificative statistic. Vacile din rasa Braunvieh au realizat un procent mai mare de grăsime, proteină şi lactoză la prima lactaţie (4,25% - 3,94%, 3,42% - 3,20%, respectiv 4,67% - 4,49%) şi la a doua lactaţie (4,29% - 4,02%, 3,42% - 3,21%, respectiv 4,59% - 4,43%). Aceste diferenţe au fost semnificative statistic (P <0,01).

Cuvinte cheie: milk yield, cattle breed, Bruna of Maramures, Braunvieh