Results 251 to 260 of about 9,285 (298)

Bacteriology of preserved stallion semen and antibiotics in semen extenders

Theriogenology, 1998
Three experiments were conducted to evaluate the effects of different antibiotics in a milk-glucose semen extender on motility of equine sperm and elimination of bacteria following storage of extended semen in vitro. In Experiment 1, 7 antibiotics were compared: amikacin, gentamicin, streptomycin, potassium penicillin, sodium penicillin, ticarcillin ...
D D, Varner, C M, Scanlan, J A, Thompson, G W, Brumbaugh, T L, Blanchard, C M, Carlton, L, Johnson   +6 more
openaire   +2 more sources

Preservation and evaluation of semen for artificial insemination

Reproduction, Fertility and Development, 2004
Many years of research have been devoted to improving the fertility of preserved semen of small ruminants. There have been few significant advances in preservation in recent times, but considerable knowledge has been gained on the effect of preservation on the structure and function of spermatozoa.
Lindsay, Gillan, W M Chis, Maxwell, Gareth, Evans   +2 more
openaire   +2 more sources

Superoxide dismutase mimics improves semen quality during chilled preservation of rabbit spermatozoa

Livestock Science, 2019
In rabbit farms, artificial insemination is usually undertaken using semen preserved around 18 ºC. However, increased reactive oxygen species levels during preservation produce sperm dysfunction.
Ahmed Gad, Maria Rodríguez, P G Rebollar   +2 more
exaly   +2 more sources

Human Artificial Insemination and Semen Preservation

, 1980
David, Georges, International Symposium on Artificial Insemination and Semen Preservation 1979 Paris   +1 more
openaire   +2 more sources

Cryogenic Preservation of Low-Quality Human Semen

Archives of Andrology, 1990
The article describes the technical strategies for clinical cryogenic preservation of low-quality human semen. To compensate for sperm dilution resulting from the use of a cryogenic medium, ejaculated semen was concentrated before freezing by means of continuous-step density gradient centrifugation.
S, Kaneko, T, Kobayashi, H K, Lee, W K, Won, T, Oda, Y, Izumi, T, Ohono, R, Iizuka   +7 more
openaire   +2 more sources

Preservation and artificial insemination of sexed semen in sheep

Reproduction, Fertility and Development, 2004
Sperm-sexing technology using flow cytometry is in advanced stages of development for the sperm of several species. The sorting process could compromise sperm viability and sperm require specific handling procedures both before and after sorting to maintain the integrity and function of the sorted sperm.
G, Evans, F K, Hollinshead, W M C, Maxwell   +2 more
openaire   +2 more sources

Large-scale preservation of human semen

Cryobiology, 1972
Abstract Data were obtained and analyzed from the freezing of ejaculates of men storing semen prior to vasectomies and for donor insemination. Recoveries comparable to those previously published were obtained. Individual variability in percentage of recovery of sperm was noted but no correlations between the parameters measured and percentage of ...
openaire   +2 more sources

Control and Preservation of Semen

Proceedings of the British Society of Animal Production, 1946
By control of semen I mean those tests which are applied to a semen sample to determine whether the sample is likely or not to be fertile when used for insemination, and to determine the extent to which it can be successfully diluted. For those who are not familiar with the methods of artificial insemination, I will try to give a very ...
openaire   +1 more source

Insemination with Cryo-Preserved Semen

1982
The concept of cryopreservation of germinal cells is attributed to Spallanzani; Mantegazza was the first to suggest the use of frozen semen banks (Sherman, 1973). The results of attempted cryopreservation of semen have been quite variable and related to the development of the field of cryobiology. The discovery of the superior cryoprotective properties
S. Leto, J. D. Paulson
openaire   +1 more source

Recent progress in the preservation of ram semen

Animal Reproduction Science, 1996
Abstract The processing and storage of ram semen reduce the motility and disrupt the membrane integrity of spermatozoa. It is generally assumed that these changes are detrimental and are associated with a loss of fertilising capacity. Despite many years of empirical research that has established a variety of methods for the processing, storage and ...
W.M.C. Maxwell, P.F. Watson
openaire   +1 more source