Genetic improvement is the base for progress in farm animal breeding. It is easily
accomplished by several methods of artificial insemination that allow the rapid spread of …

Cervical anatomy limits the use of transcervical intrauterine artificial insemination (TC AI) in
sheep. We have developed an instrument to cope atraumatically with the cervix; although …

A transcervical technique (the Guelph System for transcervical AI) was used to inseminate
2060 ewes on 65 farms (average 31 ewes, range 5 to 107) in Ontario, Canada, from October …

In sheep industry, genetic progress rate achieved by artificial insemination (AI) is limited by
the convoluted anatomy of the cervix, which does not allow the passage of an insemination …

Artificial insemination has an important role in the sheep industry and sheep genetic
improvement. The complexity of the sheep cervix limits the development of trans-cervical …

The application of assisted reproductive technologies play an important role in sheep
breeding. The genetical progress, selection and preservation can be provided by these …

Simple Summary The anatomical barriers of the female reproductive tract and the low quality
of the frozen thawed semen of rams are limiting factors in spreading superior genotypes in …

Abstract In 1994/95, 239 ewes on 5 farms were inseminated transcervically with frozen
semen in late May or 1 June. Penetration of the insemination catheter through the cervix was …

In general, artificial insemination (AI) in sheep using frozen-thawed (FT) semen in
commercial scale islimited due to the fact that the FT semen of sheep needs to be deposited …

The difficulty of traversing the cervix severely limits transcervical artificial insemination (TC
AI) in sheep. Cervical trauma and poorly designed instruments can reduce fertility after AI …