Biomedical subjects
Publications and source records attributed to M L Penrith.
This paper describes similar congenital cardiac anomalies in 2 half sibling Jersey calves. Both calves had ventricular septal defects with dextraposition of the aorta and hypertrophy of the right ventricle, consistent with Eisenmenger's complex. One of the calves also had patent foramen ovale. The 2 calves had been sired by the same bull, and collateral relationships existed between the sire and the 2 dams.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Foci of necrosis with formation of heterophilic granulomas in the medullary region of the thymus were found in apparently normal slaughtered crocodiles from 4 South African crocodile farms. The comparative pathology of these lesions is discussed. From these preliminary results it may be assumed that thymic necrosis occurs commonly in intensively reared slaughter crocodiles. The cause of this condition, however, remains obscure.
The incidence of cloacal prolapse in ostrich chicks hatched and raised on the Oudtshoorn Experimental Farm during the 1992-1993 breeding season was investigated. The condition which occurred primarily in male chicks, affected 14.65% of the total number of chicks hatched. The mortality rate amongst chicks with cloacal prolapse was very high. Although the pathogenesis and aetiology of the condition is unknown, a species of Cryptosporidium was present in large numbers in affected cloacas. Treatment with systemic antibiotics was found to be effective in some cases.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Light grey macules developed on the skin and in the mouths of juvenile caimans, (Caiman crocodilus fuscus) (n = 8), kept in the quarantine section of the reptile park at the National Zoological Gardens, Pretoria, Republic of South Africa. The gross, histopathological and ultrastructural features of the lesions were commensurate with pox virus infection. This outbreak closely resembled the disease described elsewhere in 3 juvenile captive caimans.