LA Sx, Q3, I
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Why specifically do we castrate boars and billys?
- Improve meat flavor
- arrest scent glands in billys
What is a negative factor of castration?
- decreased rate of gain/feed efficiency
- (esp if castrated around 1 yr old there is a large difference)
How old is a horse when you castrate ideally?
Early castration of bulls can increase the incidence of what urinary problem?
In pigs, sheeps and goats when do we typically castrate?
within first 2 weeks of life
what is a possible urgical complication of animals fed spoiled sweet clover?
bleeding out- because the clover has dicumerol which is an anticoagulant
In my PE before castrationg what should I palpate?
testes and inguinal ring
What are advantages to castrating a colt standing?
- -rapid procedure
- -no injury in going down or getting up with anesthesia
- -reduced anesthetic complications
What are the disadvantages of castrating a colt while standing?
- -increased risk to surgeon
- -restraint is not as reliable
- -harder to manage any surgical complications that do occur
What drug used to be used as chemical restraint for castration in horses that we dont use any more? why?
succinylcholine- just a mm relaxer, no pain relief
What local blocks can we use for castration? during which one are you more likely to get your ass kicked?
- -testicular block w/lidocaine
- -spermatic cord block- more dangerous!
Using Xylazine and ketamine combos are common in equine castration, how long do these last?
For bovine castration do we use anesthesia commonly?
no- sometimes local anesthetics
What is one restraint technique i can use when castrating a bull that prevents kicking?
force tail up and over their back so they are less likely to kick
How do i restrain a piglet for castration?
hold piglet by rear legs and cradle body in between knees
Do we use anesthesia on piglets or mature boars? what do we use?
mature Boars- pentobarbitol injection into testicle or pentothal into ear vein
When castrating what is a risk of using just ligatures instead of an emasculator?
more hemmorrhage =(
How many incisions am I making into the scrotum for equine castrations? where are they?
2 incisions on most caudal/ventral scrotum
Is the cutting edge of the emascultor cranial or caudal on the spermatic cord?
- cutting edge is distal
- (we want to crush it first then cut it!)
do i need to keep tension on the spermatic cord when the emasculator is closed?
NO!- no tension when emasculator is closed- this helps it crush better
what is the most common castration post-op problem?
poor drainage predisposing to infection
When do i place a horse in dorsal recumbancy for a castration?
when i suspect the patient is cryptorchid
What is the clotting time for equine blood?
What testical is removed first when a horse is castrated in lateral recumbancy?
remove lower testicle first
Scrotal ablation is more commonly done in what age of horse?
When do we use an emasculatome?
when tetanus is a problem, mainly in cattle
What is the henderson castrating tool and what does it do?
- -a power drill with a clamp w/ 2 jaws attached
- -clamps spermatic cord and twists until it breaks
What are the 2 methods used in bovine castration for the incision placement?
- 1. remove ventral 1/3 of scrotum
- 2. verticle incisions over each testicle
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