Written Exam - Food Animal Castration Flashcards
what are some age-related problems for castration?
size of testicles
onset of puberty - take them before puberty
behavior/aggression
what castration methods are shown here?
elastrator bands - EZE bander & callicrate
what is banding?
castration method used in sheep & goats (young animals)
causes ischemia of the testes & necrosis - testicles & scrotum slough 3 weeks later
what are the basic steps of castration?
- incise scrotum - below testicles
- isolate spermatic cord from fascia
- hemostasis for testicular artery & vein
- transect testicle
- maintain ventral drainage or close the incision
how does a newberry knife work for castrating animals?
creates a cranial & caudal skin flap in the scrotum - still need to ligate cords or apply emasculator
when is castration performed in calves?
males < 500lb - improves aggression
what is the influence of castration of calves?
intact males - higher daily rate of weight gain & produces a leaner carcass
castrated males - increased fat content in carcass & more flavorful beef
what is the toxic dose of lidocaine for calves?
6mg/kg
do you fast juvenile animals prior to castration?
no
when do potbelly pigs hit puberty?
3 months
when do production breed pigs hit puberty?
6-8 months
why are pigs castrated?
eliminate boar taint, prevent aggressive behavior, decreased sexual behavior
what castration complication are swine predisposed to?
inguinal hernias
when are production pigs castrated?
between 2 days to 2 weeks old - only restraint
what vaccine is important to give when castrating large animals?
tetanus vaccine
