| comparative pharmacokinetics of antifungal drugs in domestic turkeys, red-tailed hawks, broad-winged hawks, and great-horned owls. | the present research was to test in vitro activity of thiabendazole, 5-fluorocytosine, and amphotericin b against 11 isolates of aspergillus fumigatus from avian species. additionally, the plasma concentrations of these drugs were determined in four avian species given a range of dosages by oral, intravenous, and intratracheal routes. thiabendazole inhibited most isolates in vitro at concentrations between 25 and 50 micrograms/ml; however, there were no detectable inhibitory concentrations in th ... | 1985 | 3907612 |
| prevalence of encysted toxoplasma gondii in raptors from alabama. | little is known about the prevalence of encysted toxoplasma gondii in wild birds. we examined the hearts and breast muscles from 101 raptors for encysted t. gondii. all of the raptors had been submitted for necropsy to the state veterinary diagnostic laboratory, auburn, alabama. tissues were digested in acid-pepsin solution and inoculated into groups of 3-5 laboratory mice. toxoplasma gondii was isolated from 27 of 101 (26.7%) raptors: 8 of 12 (66.7%) red-shouldered hawks (buteo lineatus), 13 of ... | 1993 | 8277379 |
| plasmodium forresteri n. sp., from raptors in florida and southern georgia: its distinction from plasmodium elongatum morphologically within and among host species and by vector susceptibility. | plasmodium forresteri n. sp. naturally infects eastern screech-owls (otus asio), great horned owls (bubo virginianus), barred owls (strix varia), bald eagles (haliaeetus leucocephalus), red-shouldered hawks (buteo lineatus), broad-winged hawks (buteo platypterus), and red-tailed hawks (buteo jamaicensis) in florida and southern georgia. schizonts occur in mature or nearly mature erythrocytes, produce 2-6 merozoites arranged most commonly in fan or cruciform configuration, with mean dimensions am ... | 1997 | 9379302 |
| prevalence of encysted apicomplexans in muscles of raptors. | an acid-pepsin digestion technique was used to examine portions of breast muscle and heart from raptors for encysted protozoans. apicomplexan zoites were present in 52 (45.6%) of the 114 samples examined: 11 of 12 (91.7%) red-shouldered hawks (buteo lineatus), 20 of 34 (58.8%) red-tailed hawks (buteo jamaicensis), two of seven (28.6%) cooper's hawks (accipiter cooperi), three of four (75%) sharp-shinned hawks (accipiter striatus), one (100%) mississippi kites (ictinia misisippiensis), one of two ... | 1999 | 9950339 |
| antibody prevalence and isolation of viable toxoplasma gondii from raptors in the southeastern usa. | raptors are good indicators of the prevalence of toxoplasma gondii in the environment because they prey on small mammals and birds. these prey species are a major source of infection in domestic cats ( felis catus ), which shed the environmentally resistant oocysts. we assessed t. gondii infection in 281 opportunistically available raptors at a rehabilitation facility between 2012 and 2014. antibodies to t. gondii were assayed by a modified agglutination test (cutoff 1:25) and found in serum of ... | 2016 | 27243150 |
| hematologic parameters in raptor species in a rehabilitation setting before release. | to be considered for release, raptors undergoing rehabilitation must have recovered from their initial injury in addition to being clinically healthy. for that purpose, a good understanding of reference hematologic values is important in determining release criteria for raptors in a rehabilitation setting. in this study, retrospective data were tabulated from clinically normal birds within 10 days of release from a rehabilitation facility. hematologic values were compiled from 71 red-tailed hawk ... | 2011 | 22216719 |
| respiratory nematodiases in raptors in quebec. | this is a retrospective study on wild raptors submitted to the université de montréal (quebec, canada) from 1989 to 1996. cyathostoma spp. (nematoda: syngamidae) adults and/or eggs were found in air sacs, lungs, bronchi, and trachea of 12 raptors (falconiformes and strigiformes) from quebec, canada, belonging to eight different species, five of which are first host records for this parasite: barred owl (strix varia), snowy owl (nyctea scandiaca), northern harrier (circus cyaneus), northern gosha ... | 1999 | 10231766 |
| amblyomma auricularium (ixodida: ixodidae) in florida: new hosts and distribution records. | previous published evidence for the occurrence of an exotic armadillo tick, amblyomma auricularium (conil), in florida is scant, but we found it is fully established and integrated into the state's tick fauna. we collected 11,192 specimens of this tick from naturalized nine-banded armadillos, dasypus novemcinctus l., and 14 other species of wild native mammals and birds in florida, while sampling statewide during 2004 through 2007. in all, we document its specific presence only in 14 contiguous ... | 2017 | 28082640 |
| retinal structure of birds of prey revealed by ultra-high resolution spectral-domain optical coherence tomography. | to reveal three-dimensional (3-d) information about the retinal structures of birds of prey in vivo. | 2010 | 20554605 |
| acoustic discrimination of predators by black-capped chickadees (poecile atricapillus). | smaller owls and hawks are high-threat predators to small songbirds, like chickadees, in comparison to larger avian predators due to smaller raptors' agility (templeton et al. in proc natl acad sci 104:5479-5482, 2005). the current literature focuses only on high- and low-threat predators. we propose that there may be a continuum in threat perception. in the current study, we conducted an operant go/no-go experiment investigating black-capped chickadees' acoustic discrimination of predator threa ... | 2020 | 32107658 |
| spectral-domain optical coherence tomography imaging of normal foveae: a pilot study in 17 diurnal birds of prey. | to describe and to establish normative data for the foveae of diurnal birds of prey using spectral-domain optical coherence tomography (sd-oct). | 2020 | 31981286 |
| artificially decreased dissolved oxygen increases the persistence of trichomonas gallinae in water. | water containing organic material has been shown to increase the persistence of the avian pathogenic protozoa, trichomonas gallinae. we hypothesized that the decrease in dissolved oxygen due to microbes in the organic material could increase persistence of the microaerophilic trichomonads. using simulated birdbaths, we determined 1) the levels of dissolved oxygen in distilled water with various amounts of organic material, 2) the concentration of the oxygen-scavenging enzyme oxyrase® needed to a ... | 2019 | 31011532 |