Reproductive Surgery Flashcards
What are the advantages of castration of farm animals?
Prevents mating - Reduces aggression - Improves carcass quality
What are the disadvantages of castration of farm animals?
Reduced growth rate - Pain afterwards - Fatter carcass - Loss of potential breeding
Which animals are required to receive anaesthesia for castration?
Bull - Goat - Ram
What are the advantages of a bloodless castrator? What are the disadvantages?
No wound - Pain, high failure rate
Describe the technique for a burdizzo castrator
Clamp 4cm above testis - Second clamp 1cm distal to first
What is the technique for an open castration?
Infiltrate local anaesthetic - Incision at bottom of scrotum - Only touch tissues being removed
What complications can occur with an open castration?
Haemorrhage - Oedema - Infection - Inguinal herniation
When there is a choice between a caesarean and a foetotomy what should be performed and why?
Caesarean - Less exhausting, quicker, safer
What would indicate the need of a caesarean?
Feoto-maternal disproportion - Incomplete dilation of cervix - Irreducible uterine torsion - Foetal deformity - Faulty foetal disposition
How would you know the foeto-maternal disproportion requires caesarean?
Head and both elbows (stifles in posterior) can’t be pulled into pelvic canal by traction by one person with a calving aid
When performing a caesarean, what should you make sure goes in early? Why?
Local anaesthetic - takes time to act
What are the options for anaesthesia for a caesarean?
Paravertebral (T13, L1, L2, L3) - Local (line block or inverted ‘L’ block) - Epidural if straining
Why should you prepare the needle and suture material before starting the caesarean?
As soon as you have pulled the calf out, it is essential to keep a hold of the uterus and begin suturing as it can go away inside the cow quickly
When incising the abdomen for a caesarean, what muscle layers are you cutting through? Why is this significant?
External obliques - Internal obliques - Transverse abdominal - The muscle fibres all run in different directions so give good landmarks
When suturing the uterus, what technique and material should you use?
Continuous inverting pattern - Catgut
