Researches Regarding the Influence of the Season on the Raw and Processed Semen Production

Abstract

The objective of this study was to present productivity performances regarding semen production of eight Fleckvieh bulls maintained in S.C. Semtest Targu-Mures center and the manner in wich the season acts on the semen production and implicitly on the quality of semen material. In this way they were made researches on the quality of the semen material after collection and after dilution, at a number of 1946 ejaculates and which were analized and evaluated depending on the season and per calendar year. Thus, they were determined the following parameters: the volume of the ejaculate, sperm concentration, sperm mobility in raw semen material, sperm mobility in defrosted semen material, obtained and admited doses. Following the researches it was established that the semen material volume is influenced by the conditions of the collection year, the environment being a strong influence on the studied character; the mobility and the sperm concentration they are not influenced by the season in which the collection was done, and regarding the average number of obtained and admitted dosages per ejaculate, was the highest in the autumn season, when were obtained 485 doses, respectively 441 doses, and the most reduced values were obtained in the winter season 434 doses respectively 374 admitted doses.