Assisted Reproduction
Using a Bottle or Tube with a Spiral Catheter
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Preparation for
service
When training tick off |
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1 |
Remove
the boar from sight and sound of
the sow for at least one hour prior to breeding |
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2 |
Parade a
boar in front of the
female outside the pen. If the signs of oestrus are demonstrated sit on her back and prove she will stand still |
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3 |
Only
inseminate females which demonstrate "standing reflex" |
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4 |
Wipe vulva
clean with a dry tissue. If the vulva is clean do not clean with tissue |
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5 |
Place
gloves on both hands |
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6 |
Select
semen bottle by checking it is the required boar |
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7 |
Mix settled
semen by gently rotating bottle (top over bottom 6 times) then place mixed
semen in overall top pocket |
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8 |
Wipe
clippers clean with dry tissue and put clean clippers in overall top pocket |
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9 |
Take a
new catheter and lubricate on both sides of the spiral. Take
care not to put any lubricant in or near the hole |
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Insemination
procedure |
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1 |
Part
vulva lips and gently insert catheter into vagina forwards and upward to
prevent catheter entering bladder |
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2 |
Push
catheter straight forward until the ridges of the cervix are felt. Do not twist |
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3 |
Rotate
anticlockwise until a lock (flick-back) is felt. Rotate clockwise to release
lock, push catheter further forward.
Rotate anti-clockwise until firm lock is felt |
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4 |
Take
semen from pocket, gently rotate (top over bottom once), cut top 1 cm off
spout |
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5 |
Re-lock
the catheter and maintain twist with one hand, then insert semen bottle
firmly into catheter. Apply gently
pressure to the bottle to prime the catheter.
Keep bottle at an upwards angle of about 30• |
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6 |
Use
free hand to rub female flanks, and apply back pressure, during insemination
to stimulate and maintain standing still reflex |
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7 |
Maintain
lock on the catheter during insemination.
Allow the female to draw semen,
Apply gentle pressure on the bottle to overcome vacuum pressure It may be necessary to remove bottle half
way through to allow air back into bottle to release vacuum pressure |
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8 |
If no
semen flows apply firm even pressure to bottle, if still no flow turn
catheter 1/2 turn clockwise and try again |
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9 |
If
any leak back occurs, stop inseminating immediately, remove bottle from
catheter. Re-lock catheters and start
again. If excessive leak back occurs
it many be best to re-inseminate with another bottle of semen or serve using
the boar |
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10 |
When
bottle empty slowly remove catheter by rotating clockwise |
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11 |
Record
service and score quality of service |
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12 |
If
this is the first insemination, re-inseminate 24 hours later if the female
passes the standing reflex |
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