STUDIES CONCERNING THE CRYOPRESERVATION OF RAM SPERM

G. Darie, Elena Cibotaru, Nina Bradu, Irina Djenjera, Alisa Pîrlog

Abstract
    Researches were made on native breeds ram sperm Tigaie, Karakul. It was studied the particularities of sperm cryopreservation. Diluents used in the research were GHŢS, GŢJD, GŢGE. Thus, sperm motility does not change major in the early hours balancing independent of dilution medium and race. It was found that during balancing sperm for 2 hours at a temperature of 4C is optimal. Diluent GŢJG, in the composition of which was introduced glycerol in a ratio of 5%, afforded the best postcongelate mobility, compared with other media taken in research (28,5 ± 0,70).

Key words: ram, semen, volume, mobility, concentration, sperms, ejaculate, race