| Summary: | Livestock population increasement in Indonesian cattle industry require
serious consideration. In effort to increase the livestock population, the utilization
of frozen semen is considered as an option in artificial insemination. The major
drawback in artificial insemination is the poor handling of frozen semen, and
many other factor such as temperature prolonged post thawing time. The aim of
this research is to understand the viability of simmental�s frozen semen in
variouse media tempreature and post thawing time.
The thawing in research executed by picking 60 straws of Simmental Bull
semen, 20 straws is thawed at 4- 8oC cold water, 20 more is thawed in tap water
of 27 � 28oC temperature, and the last 20 straws is thawed in 35-37oC water, each
thawing is executed for 20 second, and evaluated its spermatozoa post-thawing
viability in every <1, 10, 30 minute, and 5 hour time range, under the microscope
after applying eosin-negrosin staining. Obtained data will be analyzed with one
way ANOVAs and t-test analysis tool.
The research about Simmental bull frozen semen viability showed that
there was significant differences of thawing results of cold, tap, and warm water
thawing. The optimum result of thawing was done by warm water of 35-37oC
temperature that only have <1 minute post thawing time.
Keyword: Frozen semen, Simmental, thawing, post thawing
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