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A Novel Method for Predicting Litter Size in Pigs by Evaluation of Semen_Chung-Ang Univ.
Korea Health Industry Development Institute (KHIDI) South Korea flag South Korea
Abstract ID:
A Novel Method for Predicting Litter Size in Pigs by Evaluation of Semen...
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Technology Overview



The core technology of Chung-Ang University is to provide a method of predicting pig litter size by evaluating semen and a method of predicting pig litter size using an in vitro sperm penetration assay (SPA). This is a novel method of predicting in vivo fertilization using SPA in vitro after optimizing each step of the procedure. Thus, it can more accurately predictindividuals for producing smaller or larger litters.



Background and unmet needs



Porcine artificial insemination is a means to stimulate improvement in pig breeding, increase fertility, decrease breeding costs and manpower, and prevent spread of diseases. Thus, the rate of its application has increased about three times over the last 15 years. However, artificial insemination lacks productivity compared to its high application rate, and the results of its application to breeding widely vary. That is, while the rate of its application has increased, artificial insemination has not been used effectively to improve pig breeding.



Due to poor quality of semen commercially provided by the artificial insemination center, which focuses just on quantitative improvement of artificial insegmentation, pig breeders are increasinngly turning back to natural insemination. The isolation and provision of high-quality semen is crucial to efficient application of artificial insemination



Discovery and Achievements



The data obtained from the SPA were expressed as a sperm fertility index (SFI).



SFI = {the mean number of penetrated sperm per ovum (the number of enlarged sperm heads + the number of decondensed sperm heads) +( the number of pronuclei per ovum x 2)} / the number of ova


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FEATURED
Last Updated Jun 2016
Technology Type MECHANISM
Phase of Development EARLY STAGE
GOVERNMENT INSTITUTE