Pig cervix penetration
nature of the cervix in the ewe prevents routine transcervical intrauterine AI; did not permit complete cervical penetration and had an adverse effect on conception rate. AI in pigs Steps in the insemination procedure in pigs are shown in Fig.
Boar Penis & Urethra - Pig Reproductive Anatomy & Physiology - photographs
23 Mar Once the female is ready, we will wait min for the sow's cervix to relax, and then proceed with the insertion of the cervical inner cannula.
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Litter size and vagina-cervix catheter penetration length in gilts. - PubMed - NCBI
Optimization of post-cervical insemination in pigs: critical points
Description:The extension of the penis causes tension in the fibroelastic tissues of the boar penis and causes twisting of the free end of the penis to form a corkscrew shape. Thus, there is no way that the penis actually penetrates in a corkscrew fashion. Here is a schematic of the reproductive organs of the pig: When artifical insemination was first developed in swine in the s, it was usual to use a catheter with a coiled tip to give the same sealing effect. The litter size was lowest in group Ih 7. The penis attaches to the ischial arch of the pelvis by 2 roots called the crura, which can be seen in this mounted specimen. Fraser says "The manner of intromission in the pig is unique; the male when mounted makes thrusting actions with the penis in semi-rotary actions.
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