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1.
J Zoo Wildl Med ; 51(1): 170-176, 2020 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-32212560

RESUMEN

Yersinia enterocolitica (YE) bioserotype 1B/O:8 (YE 1B/O:8) was identified in routine culture of a variety of zoo species housed at Omaha's Henry Doorly Zoo and Aquarium (OHDZA) from April to July 2011. Animal cases representing 12 species had YE detected from 34 cases during routine fecal monitoring and/or during postmortem examination: Coquerel's sifakas (Propithecus coquereli, two cases), black & white (BW) ruffed lemurs (Varecia variegata variegata, six cases), red ruffed lemurs (Varecia rubra, seven cases), white handed gibbon (Hylobates lar albimana, one case), black lemurs (Eulemur macaco, three cases), mongoose lemurs (Eulemur mongoz, two cases), African hunting dogs (Lycaon pictus, five cases), agile gibbons (Hylobates agilis, three cases), siamangs (Hylobates syndactylus, two cases), colobus monkey (Colobus angolensis palliates, one case), argus pheasant (Argusianus argus, one case), and orangutan (Pongo pygmaeus, one case). Most species were not symptomatic; however, three symptomatic cases in Coquerel's sifakas (two) and a white handed gibbon (one) showed clinical signs of diarrhea and lethargy that resulted in death for the Coquerel's sifakas. One unexpected death also occurred in a BW ruffed lemur. To the authors' knowledge, this is the first report of YE 1B/O:8 in such a large variety of zoo species. The source of the YE could not be identified, prompting the initiation of a diseases surveillance program to prevent further cases for the species that are sensitive to YE. To date, no additional cases have been identified, thus suggesting a single introduction of the YE 1B/O:8 strain into the zoo environment.


Asunto(s)
Carnívoros , Galliformes , Primates , Yersiniosis/veterinaria , Yersinia enterocolitica/fisiología , Enfermedad Aguda/epidemiología , Animales , Animales de Zoológico , Derrame de Bacterias , Nebraska/epidemiología , Serogrupo , Yersiniosis/microbiología , Yersiniosis/mortalidad , Yersiniosis/transmisión , Yersinia enterocolitica/genética , Yersinia enterocolitica/aislamiento & purificación
2.
J Zoo Wildl Med ; 44(4): 875-81, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24450045

RESUMEN

Until the majority of the great ape population is trained for conscious cardiac evaluations, most individuals will require general anesthesia to perform echocardiograms. Within the veterinary community, concern exists that certain anesthetic protocols may exacerbate or artificially induce signs of cardiac disease. Because of potential cardiovascular effects, medetomidine has generally been used cautiously in patients with cardiac disease. The combination of ketamine and medetomidine is frequently used by many institutions because of its reversibility. To date, no published studies have obtained physiologic or echocardiographic parameters comparing different anesthetic protocols. In this study, with the use of seven adult male gorillas (Gorilla gorilla gorilla) with and without cardiac disease, echocardiographic and indirect blood pressure data during three phases of an anesthetic protocol were collected. The initial echocardiographic study was completed with ketamine/ medetomidine alone (5-7 mg/kg, i.m., and 0.05-0.07 mg/kg, i.m., respectively); the second study was completed after the addition of sevoflurane inhalant anesthesia to this procedure; and the third study was completed after reversal of medetomidine by administration of atipamezole (5:1 with the medetomidine dose given at induction). Without exception, ejection fractions were 15-25% lower under anesthesia with medetomidine as compared to ejection fractions after administration of atipamezole. Indirect blood pressures were higher on ketamine/ medetomidine, lower with addition of sevoflurane, and considerably lower after administration of atipamezole.


Asunto(s)
Anestesia General/veterinaria , Anestésicos/farmacología , Presión Sanguínea/efectos de los fármacos , Ecocardiografía/veterinaria , Animales , Gorilla gorilla , Masculino , Respiración/efectos de los fármacos
3.
Comp Med ; 60(2): 149-53, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-20412691

RESUMEN

Numerous cases of urate nephrolithiasis in managed collections of common bottlenose dolphins (Tursiops truncatus) have been reported, but nephrolithiasis is believed to be uncommon in wild dolphins. Risk factors for urate nephrolithiasis in humans include low urinary pH and hypocitraturia. Urine samples from 94 dolphins were collected during April 2006 through June 2009 from 4 wild populations (n = 62) and 4 managed collections (n = 32). In addition, urine uric acid and pH were tested in a subset of these animals. Our null hypothesis was that wild and managed collection dolphins would have no significant differences in urinary creatinine, citrate, and uric acid concentrations and pH. Among urine samples from all 94 dolphins, the urinary levels (mean +/- SEM) for creatinine, citrate, uric acid, and pH were 139 +/- 7.6 mg/dL, 100 +/- 20 mg citrate/g creatinine, 305 +/- 32 mg uric acid/g creatinine, and 6.2 +/- 0.05, respectively. Of the 4 urinary variables, only citrate concentration varied significantly between the 2 primary study groups; compared with wild dolphins, managed collection dolphins were more likely to have undetectable levels of citrate in the urine (21.0% and 81.3%, respectively). Mean urinary citrate concentrations for managed collection and wild dolphin populations were 2 and 150 mg citrate/g creatinine, respectively. We conclude that some managed collections of dolphins, like humans, may be predisposed to urate nephrolithiasis due to the presence of hypocitraturia. Subsequent investigations can include associations between metabolic syndrome, hypocitraturia, and urate nephrolithiasis in humans and dolphins; and the impact of varying levels of seawater ingestion on citrate excretion.


Asunto(s)
Delfín Mular/orina , Ácido Cítrico/orina , Nefrolitiasis , Ácido Úrico/orina , Animales , Creatinina/orina , Humanos , Concentración de Iones de Hidrógeno , Nefrolitiasis/orina , Nefrolitiasis/veterinaria , Factores de Riesgo , Agua de Mar
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