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Biomedical subjects

J H Samour

Publications and source records attributed to J H Samour.

41 records · Page 3Linked to original sources
PubMedDate not supplied

Radiographic monitoring of the ossification of long bones in kori (Ardeotis kori) and white-bellied (Eupodotis senegalensis) bustards.

A serial radiographic study was conducted on eight kori bustard (Ardeotis kori) and four white-bellied bustard (Eupodotis senegalensis) chicks to determine the pattern of long bone development and to establish radiographic standards for assessing skeletal maturity. The ossification pattern, appearance of secondary ossification centres, and epiphyseal fusion of the long bones in kori and white-bellied bustards were similar to those in houbara bustards (Chlamydotis undulata macqueenii), rufous-crested bustards (Eupodotis ruficrista), domestic fowl (Gallus gallus), house wrens (Troglodytes aedon aedon), racing pigeons (Columba livia). and barn owls (Tyto alba). Secondary ossification centres were present at the proximal and distal tibiotarsus, proximal tarsometatarsus and proximal metacarpal III. The ossification of long bones occurred earlier in female kori bustards compared with males.

Animals↗
PubMedDate not supplied

Causes of morbidity in bustards in the United Arab Emirates.

The findings of 1746 clinical examinations of 594 bustards of six different species are presented, and the differences of causes of morbidity between imported adult, captive adult, and captive juvenile bustards are discussed. Wing tip trauma, keel trauma, and other soft tissue-related traumatic injuries were the most commonly diagnosed clinical conditions in captive adult bustards, accounting for 50.7% of the total findings in this category. Soft tissue-related related traumatic injuries accounted for 26.3% and 5.3% of the findings of imported adult and captive juvenile bustards, respectively. Musculoskeletal disorders were the most commonly diagnosed clinical conditions in captive juvenile bustards, accounting for 61.3% of the total findings in this category. Nutritional bone disease was the single most important musculoskeletal disorder in captive juvenile bustards, accounting for 24% of total findings. Musculoskeletal disorders accounted for 22.9% and 4.9% of findings in captive adult and imported adult bustards, respectively. Parasitic observations accounted for 24.7% of the total findings in imported adult bustards. Infectious viral diseases were almost exclusively confined to the imported adult bustards, making up 20.1% of findings in this group. Opthalmologic conditions accounted for 15.1% of findings in imported adult bustards.

Animals↗
PubMedDate not supplied

Postmortem findings in bustards in the United Arab Emirates.

A review was conducted of 236 postmortem examinations of six species of captive and imported bustards in the United Arab Emirates for the period 1979-94. The most common causes of death in adult imported houbara bustards (Chlamydotis undulata macqueenii) were euthanasia due to Newcastle disease, aspergillosis, and post-transportation-related deaths. Helminth parasites were a common finding in imported houbara bustards, and large parasite burdens occasionally caused intestinal obstruction and death. The most common causes of death in adult captive houbara bustards were trauma-related deaths and euthanasia for or death following treatment for capture myopathy. Fatty liver change was an important postmortem finding of captive adult houbara bustards. The main cause of death in juvenile houbara bustards was yolk-sac infection and septicemia. The most common causes of death in adult kori bustards (Ardeotis kori) were capture myopathy and handling injuries or euthanasia following these injuries. The most common causes of death in adult rufouscrested bustards (Eupodotis ruficrista) were post-transportation deaths in imported birds and trichomoniasis and trauma in captive birds. Juvenile rufous-crested bustards appeared to be highly susceptible to gizzard impactions and foreign-body obstructions of the gastrointestinal tract. Nutritional bone disease is an important disease of all juvenile bustards, particularly kori and houbara bustards. Aspergillosis was also a common postmortem finding in captive and imported adult houbara bustards and also caused mortality in juvenile kori and houbara bustards.

Animals↗
PubMedDate not supplied

Antimicrobial resistance and minimum inhibitory concentrations of bacteria isolated from bustards in the United Arab Emirates.

The resistance to 11 antimicrobial agents of bacteria isolated from clinical and postmortem cases of five species of bustards maintained in captivity in the United Arab Emirates (UAE) from 1995 to 1997 was determined by disc sensitivity. Of 226 isolates, 169 (74.8%) were gram-negative bacilli, with the majority identified as Escherichia coli (28.8%) and Pseudomonas aeruginosa (19%). The isolates of E. coli showed a high prevalence of resistance to amoxycillin (69%), tetracycline (66.7%), and sulphamethoxazole (43.3%). Moderate resistance to enrofloxacin was observed in E. coli (30%) and P. aeruginosa (19%) isolates. The minimum inhibitory concentrations (MICs) to seven antimicrobial agents were determined for 133 bacterial isolates from bustards during 1996 to 1997. Enrofloxacin (concentration required to inhibit 50% of the isolates [MIC50] < 0.5 microgram/ml) and gentamicin (MIC50 < or = 1.0 microgram/ml) exhibited good activity against both gram-negative bacilli and staphylococci isolated from bustards. Enrofloxacin (MIC50 < or = 1.5 micrograms/ml), gentamicin (MIC50 < or = 2.0 micrograms/ml), and piperacillin (MIC50 < or = 4.0 micrograms/ml) exhibited good activity against P. aeruginosa isolates. Amoxycillin/clavulanic acid showed good activity (concentration required to inhibit 90% of the isolates [MIC90] < or = 2.0 micrograms/ml) against gram-positive cocci and moderate activity (MIC50 < or = 3.0 micrograms/ml) against E. coli, Salmonella spp., and Klebsiella spp. Amoxycillin exhibited good activity (MIC50 < or = 0.5 microgram/ml) against gram-positive organisms and moderate activity (MIC50 < or = 1.0 microgram/ml) against Salmonella spp. These results provide information on the prevalence of resistant bacterial strains and the MICs of organisms derived from bustards in the UAE.

Amoxicillin↗