RESEARCHES REGARDING THE GROWING CAPACITY AND FEED CONVERTING CAPACITY IN MEAT PRODUCTION AT ROMANIAN CATTLE BREEDS

Authors

  • Livia Vidu Universitatea de Ştiinţe Agronomice şi Medicină Veterinară Bucureşti, Facultatea de Zootehnie, 59 Mărăşti Avenue, Bucharest
  • Vasile Bacila Universitatea de Ştiinţe Agronomice şi Medicină Veterinară Bucureşti, Facultatea de Zootehnie, 59 Mărăşti Avenue, Bucharest
  • Nicoleta Alina Udroiu Universitatea de Ştiinţe Agronomice şi Medicină Veterinară Bucureşti, Facultatea de Zootehnie, 59 Mărăşti Avenue, Bucharest
  • Vladu Marius Universitatea din Craiova, Facultatea de Agronomie, 19 Libertăţii Street, Craiova

Abstract

The purpose of this paper is to highlight the productive potential of male fattening youth from local cattle breeds –Brown type Schwyz (B), Romanian Spotted type Simmental (BR) and Romanian Black Spotted type Holstein (BNR). The researches were conducted on a number of 108 young bulls (male calves) of the three breeds listed above (20 from breed B - group I, 44 animals from BNR breed – group II and 44 animals from BR breed - group III). The animals were kept in the same artificial environmental conditions and were fed with identical rations. The average birth weight of the three groups was 39.92 kg, with variations between 37.5 kg in group I and 41 kg in group III. At the age of delivery to slaughter the weight achieved by the three groups (group I 399.31 kg, group II 445.06 kg and group III 464.09 kg) showed very significant differences (P<0,001). In the first fattening period (80-150 days) for the animals from group I the daily average gain of the period was 867, 5 g, with a variability of 5.51%, for the group II the average daily gain was 911.2 g and the group III had gains of over 1000 g (1054.02 g). At this age between groups I and III, respectively II and III the differences are very significant (P<0,001). The feed conversion was made with very significant differences between groups, the best specific feed consumption for the body mass unit were realized by the animals of BR breed.

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Published

2015-12-27