Analyze of reproduction activity in dairy cows in Vrancea region

Published in Scientific Papers. Series D. Animal Science, Vol. LV
Written by Paul TĂPĂLOAGĂ, Dana TĂPĂLOAGĂ, Alexandru ȘONEA, Iuliana NEAGU, Monica MARIN

The basis of cattle development, livestock increasing, quality improvement, milk yield and economic efficiency increasing is the reproduction activity process. The researches in the present paper were carried out in Vrancea region, in the south-east of Romania, on a 1000 Holstein Frisian cows livestock, in different lactations, raised in different location. There were analyzed the main reproduction activity indicators resulted following the artificial insemination biotechnology activity: the age at first calving, number of inseminations per one pregnancy, the fecundity index, the length of service-period and calving interval. The primary data were statistically processed, being calculated the main statistic population parameters: average, its error, standard deviation, coefficient of variability. There were recorded the data following every pregnancy, from the first one to the third and there was established the moment of the best results. The obtained results represented key-points in technologic flow optimization of the artificial insemination biotechnology in the studied region, having in view the sustainable agriculture development principles.

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Tăpăloagă P., Tăpăloagă D., Șonea A., Neagu I., Marin M., 2012, Analyze of reproduction activity in dairy cows in Vrancea region. Scientific Papers. Series D. Animal Science, Vol. LV, ISSN-L 2285-5750, 142-145.

 


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