Influence of some natural-climatic factors on the sperm production of north-east Bulgarian fine-fleece breed
2009
Stefanov, R. | Sabev, M. | Nikolov, I., Bulgarian Academy of Sciences, Sofia (Bulgaria). Institute of Biology and Immunology of Reproduction | Anev, G., Experimental Station of Agriculture, Targovishte (Bulgaria) | Ivanova-Kicheva, M. | Miteva, K. | Lazov, K., Bulgarian Academy of Sciences, Sofia (Bulgaria). Institute of Biology and Immunology of Reproduction
The investigations related to the effect of some natural-climatic factors - temperature, humidity, precipitations and duration of light day on the ram sperm production of north-east Bulgarian fine fleece breed, are carried out. The studies are conducted during the reproductive season (preparatory and generative period). Seventeen clinically health ram sperm donors under the selection control, are used. The differences are established in the values parameters of sperm studies, related to the sperm motility, presence of pathologiocal spermatozoa and their thermo resistance, comparing to those during the generative period. The results are interpreted by the natural-climatic factors influence on the sperm production. The data are informative, related to the possibilities, related to the quality ejaculates selection, related to the high fertility achievement.
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