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At least 379 records · Page 21Linked to original sources
PubMed1983

[Fatal cryptococcosis in a bird fancier. A clinical case report on pathology, diagnosis and epidemiology of cryptococcosis].

In a 69 year-old female patient who had been a pet bird enthusiast, cryptococcosis of the central nervous system was surprisingly established as cause of death at postmortem. Clinically, a diagnosis of cirrhosis of the liver associated with atypical coma hepaticum had been suspected. Apart from damage due to alcohol abuse, no other underlying disease could be found. The fecal matter of a budgerigar (Melopsittacus undulatus) has been suggested as the probable source of infection. Using Guizotia abyssinica creatinine agar, Cryptococcus neoformans could be isolated from dry fecal matter collected from the bird cage. In a pet shop in the neighbourhood of the patient's home, fecal matter from various pet bird species was collected. Using the same method, examination also revealed the presence of Cr. neoformans. Contrastingly, masses of pigeon manure found in the garret of the patient's house did not contain Cr. neoformans. The epidemiological significance of the fecal matter of pet birds as a habitat for Cr. neoformans is discussed.

Aged↗
PubMed1984

Egg binding in caged and aviary birds.

Egg binding most often affects budgerigars, cockatiels, finches and canaries. Causes include oversized or malpositioned eggs, lack of exercise, nesting too early or late, excessive egg laying, uterine damage or infection, obesity, malnutrition, sudden drops in ambient temperature and genetic factors. Clinical signs are perching unsteadily with ruffled feathers and half-closed eyelids, frequent tail-wagging or straining, swelling over the tail base, and sitting on the cage bottom. Diagnosis is by physical examination and radiography. Treatment may involve increasing the ambient temperature to 85-90 F, lubricating the vent, IM injections of Ca solution and/or oxytocin, egg aspiration and laparotomy.

Animals↗
PubMedDate not supplied

Mycoplasma challenge studies in budgerigars (Melopsittacus undulatus) and chickens.

An upper respiratory condition that resulted in 20% mortality in a flock of yellow-naped Amazon parrots was apparently caused by a concomitant infection of mycoplasmas and bacteria. Mycoplasma gallisepticum (MG), M. iowae, and an unidentified mycoplasma were isolated from the affected parrots. Budgerigars were experimentally infected with a parrot strain of MG designated MG(P) 1669 as well as with the R strain of MG and the F10-2 strain of M. synoviae (MS). Air-sac lesions were evident in all groups of challenged budgerigars, and MS and MG were cultured from the tracheas, air sacs, and lungs of the budgerigars up to 5 weeks postexposure. Serological findings were ambiguous and therefore considered unreliable. White leghorn and commercial broiler chickens challenged with the MG(P) 1669 isolate did not exhibit any significant air-sac lesions relative to the controls. However, MG was cultured from both groups of experimentally infected birds. Eight weeks after exposure, the white leghorns were seropositive to all MG antigens used in the agglutination test.

Air Sacs↗
PubMed1982

Acute toxicosis of budgerigars (Melopsittacus undulatus) caused by pyrolysis products from heated polytetrafluoroethylene: clinical study.

Polytetrafluoroethylene (PTFE), a synthetic polymer widely used as a nonstick surface in cookware, releases toxic pyrolysis products when exposed to excessive heat. Thirty-two budgerigars (Melopsittacus undulatus) were exposed to pyrolysis products of either heated PTFE cookware or plain aluminum cookware in a specially designed exposure chamber for given periods. Clinical signs were recorded and necropsies were done on all birds at the termination of each exposure period. The PTFE products caused acute respiratory distress and rapid death in many of the exposed birds. At necropsy, lesions were seen only in the respiratory tract--extensive pulmonary hemorrhage and congestion.

Acute Disease↗
PubMed1982

Acute toxicosis of budgerigars (Melopsittacus undulatus) caused by pyrolysis products from heated polytetrafluoroethylene: microscopic study.

An ultrastructural study was performed on the respiratory system of budgerigars (including 6 controls) which were acutely affected by inhalation of toxic fumes from heated polytetrafluoroethylene (PTFE pyrolysis products) or had survived fro 24 hours after a sublethal exposure. The controls were exposed to fumes from heated plan aluminum (ie, not coated with PTFE). The microanatomy of lungs of the controls was described and compared with that of lungs of the birds exposed to PTFE pyrolysates. The PTFE pyrolysates caused extensive, severe necrotizing and hemorrhagic pneumonitis. These lesions were associated with amorphous elongate conglomerates of particles which were similar to those isolated on membrane filters from fumes generated from heated PTFE--this supporting the hypothesis that the toxic principle in PTFE pyrolysates is at least, in part, related to generated particulates.

Acute Disease↗
PubMed1981

Unusual disease conditions in pet and aviary birds.

Ninety percent ot 100% mortality in budgerigar (Melopsittacus undulatus) nestlings from 2 aviaries was attributed to giardiasis. Treatment with dimetridazole in drinking water was effective in controlling mortality. Aeromonas hydrophila infection incriminated in acute deaths of aviary canaries (Serinus canarius) was successfully treated with chlortetracycline. Aeromonas hydrophila also was isolated in pure culture from a toucan (ramphastos toco) with acute nephrosis and a cockatiel (Nymphicus hollandicus) with chlamydiosis (psittacosis). Coccidiosis associated with hemorrhagic enteritis, diarrhea, and mortality was diagnosed in budgerigars originating from 3 aviaries. Sporulated oocysts from 1 group of budgerigars were identified as Eimera sp. Sulfamethazine in drinking water was an effective treatment.

Aeromonas↗