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Ectoparasitic dermatitis in free-ranging swamp wallabies (Wallabia bicolor) in New South Wales 总被引：1，自引：1，他引：0
We report extensive dermatological lesions in three, free-ranging, adult, male swamp wallabies ( Wallabia bicolor ), presented to Taronga Western Plains Zoo wildlife hospital. All three animals were moderately infested with the louse species Heterodoxus ualabati , and two were concurrently infested with a previously undescribed sarcoptiform mite of the genus Diabolicoptes . Histological changes included moderate to marked compact hyperkeratosis, focal deep pyoderma and superficial dermatophytosis. Mild to moderate hyperplastic perivascular and periadnexal dermatitis with marked superficial and follicular hyperkeratosis was evident in the skin of the inguinal region and lateral thigh of the two wallabies infested with the Diabolicoptes species. This is the first report of ectoparasitic dermatitis in free-ranging swamp wallabies and the first report of mites of the genus Diabolicoptes from a macropodid. 相似文献
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Assessing the productivity of indigenous chickens in an extensive management system in southern Nyanza, Kenya 总被引：3，自引：3，他引：0
Portas Odula Olwande William O. Ogara Samwel O. Okuthe Gerald Muchemi Edward Okoth Maurice O. Odindo Rubin F. Adhiambo 《Tropical animal health and production》2010,42(2):283-288
The present study was conducted to assess the performance of indigenous chickens under extensive system in southern Nyanza, Kenya. The study was carried out in two phases in Komolorume and Kawere villages in Rongo and Rachuonyo districts, respectively. The first phase was a cross-sectional study in 81 farms selected by cluster sampling to get the overview of the indigenous chicken production. A four-month prospective longitudinal study in 60 farms randomly selected from the previous 81 farms followed. Mean flock sizes per household were 20 and 18 birds in Komolorume and Kawere, respectively. Overall mean flock size was 19 birds ranging from 1to 64. The mean clutch size, egg weight and hatchability were 12 eggs, 48 g and 81% respectively in Komolorume and 10 eggs, 45 g and 70%, respectively, in Kawere. The chick survival rates to the age of eight weeks were 13% and 10% in Komolorume and Kawere, respectively. Mean live weights for cocks and hens were 2096 g and 1599 g in Komolorume and 2071 g and 1482 g in Kawere, respectively. The mean household cock to hen ratio was 2:5 and 2:4 for Komolorume and Kawere, respectively. The mean chick to grower to adult ratio per household was 8: 6:6 in Komolorume and 8:4:6 in Kawere. Clutch sizes and hatchability rates were significantly higher in Komolorume village (P?<?0.5). The productivity of the indigenous chickens was shown to be low compared to that of the improved chickens in other parts of the world. 相似文献
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B Behr D Rath TB Hildebrandt F Goeritz S Blottner TJ Portas BR Bryant B Sieg A Knieriem SP de Graaf WMC Maxwell R Hermes 《Reproduction in domestic animals》2009,44(2):273-277
Flow cytometric sexing of spermatozoa followed by application in artificial insemination or in vitro fertilization provides a unique opportunity to predetermine the sex of offspring and might enhance the conservation management of endangered species in captivity such as the elephant and rhinoceros. To obtain an indication of the sortability of spermatozoa from these species, the relative DNA differences between X and Y chromosome bearing spermatozoa (fresh, frozen thawed, epididymal) from three rhinoceros species [white ( Ceratotherium simum ), black ( Diceros bicornis ), Indian ( Rhinoceros unicornis )] and both elephant species, the Asian and the African elephant ( Elephas maximus, Loxodonta Africana ), were determined through separation of spermatozoa into X and Y chromosome bearing populations, using a modified high speed flow cytometer. The head profile areas of spermatozoa from all five species were measured using light microscopy. By multiplying the relative DNA differences and the head profile areas, the sperm sorting indices were calculated to be 47, 48 and 51 for white, black and Indian rhinoceros respectively. The calculated sorting index for the Asian elephant was 66. In the African elephant, we determined the highest sorting index of 76. These results indicate the practicability of flow cytometric sex sorting of spermatozoa from the tested rhinoceros species and both elephant species. The lower sorting indices in rhinos indicate that sex sorting of spermatozoa from the rhinoceros will be more challenging than in elephants. 相似文献
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THE ISOLATION OF MYCOPLASMAS FROM CATS WITH RESPIRATORY DISEASE 总被引：1，自引：0，他引：1
P. B. Spradbrow B.V.Sc. Ph.D. Judy Marley B.Sc. B. Portas G. Burgesss 《Australian veterinary journal》1970,46(3):109-110
Mycoplasma were isolated from 11 of 160 samples from cats with respiratory disease. Most isolations were made from nasal swabs. Two of the isolates were tested for metabolic activity, and one fermented glucose while the other metabolized arginine. Metabolism-inhibiting antibodies active against the arginine metabolizing mycoplasmas were present in 6 of 20 cats serums at titres of from 1/2 to 1/8. Antibodies against the glucose fermenting mycoplasma were not present in any of the 20 serums. 相似文献
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TJ Portas TB Hildebrandt BR Bryant F Göritz R Hermes 《Australian veterinary journal》2010,88(1-2):57-60
A testicular mass was identified by ultrasonography performed during a routine reproductive evaluation of an adult male southern black rhinoceros ( Diceros bicornis minor ). Histological examination of a testicular biopsy supported a presumptive diagnosis of testicular neoplasia. Hemi-castration was performed to excise the affected testis and a pathological diagnosis of a seminoma was made. Assessment of semen suggested reduced fertility as a consequence of the neoplastic process, but hemi-castration prevented further growth and metastasis of the tumour and ensured the animal's breeding potential. This is the second documented case of a seminoma in a rhinoceros species and the first case in a black rhinoceros. 相似文献
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