Trypanoxyuris (Trypanoxyuris) minutus (Schneider, 1866) among Alouatta guariba clamitans (Cabrera, 1940) in the state of Rio de Janeiro, Brazil

Abstract

This study reports on infection by Trypanoxyuris (Trypanoxyuris) minutus among Alouatta guariba clamitans through biometry on adults and eggs. A total of 58 adult helminths were recovered from the small segment of the animal's large intestine. This study is the first report of this parasite among A. guariba clamitans in Rio de Janeiro.

Infection by Prosthernorchis elegans (Diesing, 1851) in captive Callithrix aurita (É. Geoffroy, 1812) and Leontopithecus rosalia (Linnaeus, 1766) from Rio de Janeiro, Brazil

“…There was also a variation in the testicles' size in another report 15 . This diversity in the helminths biometrics was already expected, as they may occur due to geographic variation and intensity of parasitic infection in the host 4 …”

“…15 This diversity in the helminths biometrics was already expected, as they may occur due to geographic variation and intensity of parasitic infection in the host. 4 In molecular analysis, a high similarity in the sequences of P. elegans from C. aurita and L. rosalia was verified. However, they were not identical.…”

“…In captivity, primates are generally allocated in groups and in environments smaller than their natural habitat, have more contact with humans, and are exposed to different management conditions. These circumstances can determine stress and a drop in primates’ immunity, favoring parasitic infections 3,4 . Among the parasites, the Phylum Acanthocephala stands out.…”

“…These circumstances can determine stress and a drop in primates' immunity, favoring parasitic infections. 3,4 Among the parasites, the Phylum Acanthocephala stands out. These can be transmitted to NHP through the ingestion of infected arthropods, mainly cockroaches and beetles, that can determine morbidity and mortality.…”

Face to face

“…Nowadays, I also work on the assessment of parasite biodiversity in captive and free living wild animals, both in urban and wild environments, including protected areas in Atlantic Forest biome such as Serra dos Órgãos National Park, Itatiaia National Park and PedraSelada State Park, and in their surroundings. [ 1 2 3 4 5 ] In addition, our research groups have been working with protozoa that can cause damage to the health of animals and even problems to public health due to the potential for zoonotic transmission evidenced by any of these agents. Within this context, helminths and apicomplexan protozoa are included, which can infect domestic animals in urban and rural environments.…”