CASTRATION OF CRYPTORCHID STALLIONS

After a brief literature summary, the authors have reported the develo pment of testes, forms of cryptorchism (complete and incomplete abdomi nal cryptorchism are shown in Figs 2 and 3, inguinal cryptorchism in F ig 4) and their symptoms, as well as diagnosis have been detailed. Fir st it should be clarified whether the animal had not been castrated be fore. After the visual examination of scrotum and inguinal region, the most important event is the rectal examination. This can fail because of the temperament behaviour and small body measures of the animal. I n such a case can be used the hormone test (Cox, 1975). Possible surgi cal methods have been described in connection with the treatment. The entrance can be inguinal (Figs 6, 7 and 8), parainguinal, para-median suprapubical, median or psoacal in case of an operation carried out in general anaesthesia. Removal of testis by laporoscopy - as a new meth od - has been detailed (Figs 9, 10 and 11). The operation is carried o ut in general aneaesthesia in recumbent horses. on an operating board declined towards the head. The abdominal cavity has been filled up wit h carbon dioxide through a small wound prepared in the median plane an d the rigid endoscope connected with a camera is introduced through th is. The testis is searched, lifted and removed by a forceps introduced through a working canal prepared besides the median plane. The durati on of the operation is 30 to 40 minutes, during which the horse is bre athed artificially.