ESTIMATION OF BREEDING ACTIVITY FOR THE KARAKUL OF BOTOSANI BREED
M.A. Florea, I. Nechifor, C. Pascal
Research has had as its main purpose the carrying out of an analysis of the reproductive activity to one of the breeds formed in Romania, respective the Karakul of Botosani. To obtain more real results, the analysis was based on data obtained during several consecutive seasons of breeding carried out in the period between 2012 and 2016. In every season treatment was the same and referred to: stimulant feeding of type flushing, drawing up a list naming of homogeneous, detection of sheep in estruses, mating and if needed repeat mating.
Based on the processing of data, it was found that the proportion of female mounted at the first sexual cycle registered the lowest value in the year 2012, reaching the value of 66.59%, after which in the years 2013 and 2014 there is a considerable increase with 6.23% respectively with 3.87%. From 2014 to 2016 the differences are not very large, the highest value is passed in the year 2016, being of 77.69%.
Also, the percentage of un-mounted females recorded the highest value in 2012, of 11.1% after that in 2013 it has a significant drop with 6.35%. The smallest value is recorded in the year 2015, respectively 2% and a slight increase is recorded in the year 2016 with about 0.52%.
Calving index at the adult females recorded the highest value in the breeding season 2013-2014 and was of 84.67%, and the lowest value is recorded in the breeding season 2012-2013 respectively of 79.06%.
For the adult females the double calving index has recorded the highest value in the breeding season 2015-2016, being of 10.76%, and lowest in 2012-2013 when it was only 4.25%.
Based on the data obtained may indicate that through technological interventions aimed at a better management of reproduction of the Karakul of Botosani breed, from one season to the other, the main indices specific to the reproductive function have a positive and rising trend.
Key words: pelts, Karakul of Botosani, reproduction sheep, fecundity