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Abstract: A juvenile ostrich (Struthio camelus) was castrated in 2 procedures (right and left hemicastrations) at 3 and 4 months of age. The bird had 3 episodes of depression, inappetence, and head-shaking with apparent dysphagia of 1-3 days duration during the 4 months after the first surgical procedure. It was found dead at 7.5 months of age with no clinical signs in the days immediately preceding the death. At necropsy, the intestine was found entrapped in the right pulmonary ostium. Death likely resulted from compression of the air sacs and heart by the dilated bowel. Care should be taken to avoid disrupting the air sac wall integrity between the thoracic and abdominal regions of the coelom during the castration of juvenile ostriches. Key words: castration, avian, ostrich, Struthio camelus Clinical Report A juvenile ostrich (Struthio camelus) was found abandoned by its parent and was treated for hypothermia and dehydration with supplemental heat and warmed subcutaneous fluids (Ringer's solution) at 5% of body weight. The bird was unable to be reintroduced to either its mother or a surrogate female ostrich, and it quickly became heavily imprinted on humans. At 10 weeks of age, the bird was sexed as male by examining the cloaca and determining the presence of a phallus. Because of the dangers an intact, imprinted, adult male ostrich may pose to zoo keepers and members of the public and the reported reduced aggression after castration in adult ostriches, (1) castration of the juvenile ostrich was elected. At 11 weeks of age (weight = 6.9 kg), a right lateral celiotomy was performed. Anesthesia was induced with propofol (Diprivan 1% w/v, 10 mg/ ml, AstraZeneca Pty Ltd, North Ryde, NSW, Australia) at 10 mg/kg IV (right jugular vein) and maintained with isoflurane administered through a noncuffed, 6.0-mm endotracheal tube. Butorphanol (1 mg/kg IM, Torbugesic, Fort Dodge Australia Pty Ltd, Baulkham Hills, NSW, Australia) was given perioperatively to provide analgesia, and Ringer's solution (20 ml/kg/h) was administered through an intravenous catheter in the medial saphenous vein during surgery. Because the surgeon was left-handed, a right lateral approach, similar to that described for parrots, (2) was used rather than the traditional left lateral approach. A paramedian incision was made in the right lateral...
Source Citation (MLA 8 th Edition)
Pye, Geoffrey W. "Intestinal entrapment in the right pulmonary ostium after castration in a juvenile ostrich (struthio camelus)." Journal of Avian Medicine and Surgery, vol. 21, no. 4, 2007, p. 290+. Academic OneFile, Accessed 21 Sept. 2018.
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