Acute Toxoplasmosis in Squirrel Monkeys.
نویسندگان
چکیده
منابع مشابه
Enzootic toxoplasmosis in caged squirrel monkeys Saimiri sciureus.
Spontaneous and experimental toxoplasmosis have been reported sporadically as the cause of death in nonhuman primates. These reports indicate that New World monkeys and marmosets (cebidae and hapalidae), are more susceptible to infection by Toxoplasma gondii, or more often develop disease in response to this infection than monkeys and baboons of the Old World (cercopithecidae). This difference ...
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The goal of this study was to understand the basis for high androgen levels in squirrel monkeys (Saimiri spp.). Mass spectrometry was used to analyze serum testosterone, androstenedione, and dihydrotestosterone of male squirrel monkeys during the nonbreeding (n = 7) and breeding (n = 10) seasons. All hormone levels were elevated compared with those of humans, even during the nonbreeding season;...
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Two monkeys were reinforced for responding to the card which displayed fewer number of entities (three randomly selected sizes of filled circles) than the other card in any given pair. Area and brightness cues were controlled (at least for the successive numerousness discriminations), as were specific-pattern learning cues. Training proceeded in the order 2 versus 7 (2:7), 2:6, 2:5...2:3, 3:7, ...
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Captive-born male and female squirrel monkeys spontaneously 'invented' a cup tool use technique to Contain (i.e., hold and control) food they reduced into fragments for consumption and to Contain water collected from a valve to drink. Food cup use was observed more frequently than water cup use. Observations indicate that 68% (n = 39/57) of monkeys in this population used a cup (a plastic slip ...
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ژورنال
عنوان ژورنال: Journal of Veterinary Medical Science
سال: 1997
ISSN: 0916-7250,1347-7439
DOI: 10.1292/jvms.59.593