Vasectomy and castration Flashcards

1
Q

List 2 bloodless castration methods

A

Burdizzo
rubber rings

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2
Q

Describe how are rubber rings used for castration

A

rubber ring stretched over the whole scrotum and released - ensuring both testicles are below the ring

blood flow is cut and the testicles and scrotum atrophy and eventually slough

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3
Q

Describe how burdizzos are used for castration

A

burdizzo crushes the spermatic cord - prevents blood flow into the testicular artery, testicle atrophies but the scrotum remains

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4
Q

in calves/lambs, when does rubber ringing have to be done by

A

within 7 days of birth

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5
Q

at what point is it required for vet to castrate a calf

A

more than 2 months of age

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6
Q

at what point is it required for vet to castrate a lamb

A

more than 3 months of age

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7
Q

how would we castrate a calf or bull surgically

A

via an open technique

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8
Q

what anaesthetic do we give to bulls when castrating

A

subcut LA under the skin and 1-5ml in both spermatic cords

provide post op NSAIDs

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9
Q

Describe calf castration- twisting method

A

standard skin prep
make incision through the scrotal skin and vaginal tunic
separate vaginal tunic from the testicle by tearing the ligament
pull testis down and twist the cord repeatedly occasionally stretching until it snaps - or you can use an emasculator to cut the testicle off

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10
Q

if you have a cryptorchid animal, what castration method do you need to use

A

surgical

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11
Q

what age can the burdizzo technique be used up to

A

2 months

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12
Q

what is a vasectomy

A

bilateral surgical removal of a part of the vas deferens

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13
Q

what is the effect of manipulating a ewes oestrus cycle by presenting her to a ram

A

2 week advancement by using a teaser ram

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