| larval recovery of toxocara canis in organs and tissues of experimentally infected rattus norvegicus. | the aim of this note was to record for the first time the recovery of toxocara canis larvae from tissues and organs of rattus norvegicus (berkenhout, 1769), wistar strain, until the 60th day after experimental infection. rats were orally infected with embryonated t. canis eggs, killed on days 3, 5, 8, 10, 15, 30, and 60 after inoculation and larvae were recovered from liver, lungs, kidneys, brain, and carcass after acid digestion, showing a pattern of migration similar of that previously observe ... | 2004 | 15558175 |
| behavioral changes in rattus norvegicus experimentally infected by toxocara canis larvae. | toxocara canis is a common canine nematode parasite and one of its possible transmission mechanisms is the predation of infected rodents by canids. fifty rattus norvegicus were used to study behavioral alterations in rodents infected by t. canis larvae. the rats were divided into three groups: g1, 20 rats infected with 300 t. canis eggs; g2, 20 rats infected with 2,000 t. canis eggs; and g3, 10 non-infected rats. thirty and 60 days post-infection, rats from all the groups were submitted to an op ... | 2010 | 21049227 |
| behavioural changes and muscle strength in rattus norvegicus experimentally infected with toxocara cati and t. canis. | toxocara canis and toxocara cati are nematode parasites in dogs and cats, respectively, transmitted by ingestion of embryonated eggs, transmammary and transplacental (t. canis) routes and paratenic host predation. many parasites use mechanisms that change the behaviour of their hosts to ensure continued transmission. several researchers have demonstrated behavioural changes in mouse models as paratenic hosts for t. canis. however, there have been no studies on behavioural changes in laboratory r ... | 2015 | 24725503 |
| behavioral changes in rattus norvegicus coinfected by toxocara canis and toxoplasma gondii. | using an elevated plus maze apparatus and an activity cage, behavioral changes in rattus norvegicus concomitantly infected by toxocara canis and toxoplasma gondii were studied, during a period of 120 days. rats infected by toxocara canis or toxoplasma gondii showed significant behavioral changes; however, in the group coinfected by both parasites a behavioral pattern similar to that found in the group not infected was observed thirty days after infection, suggesting the occurrence of modulation ... | 2013 | 23328726 |
| muscular strength decrease in rattus norvegicus experimentally infected by toxocara canis. | the muscular strength of experimental infected rattus norvegicus with 3rd. stage toxocara canis larvae was investigated. fifty wistar rats, divided in three groups (g1-20 rats infected by 300 eggs of t. canis; g2-20 rats infected by 2,000 eggs of t. canis and g3-10 rats without infection) had been used. ten and 30 days after infection the muscular strength in the fore-feet of the rats was checked; at the same time, the body weight was determined. no significative differences in the body weight w ... | 2009 | 19390734 |
| distribution of toxocara infection in the environment and in definitive and paratenic hosts in estonia. | the aim of the study was to elucidate the distribution and possible transmission routes of toxocara spp. infection in estonia. out of 454 faecal and sand samples collected from park lawns and sandpits in the town of tartu, 19 were toxocara positive (4.2%). out of the 45 sandpit samples 17.8% were toxocara positive. cat faeces was found in 21 sandpit samples. parasitological necropsies were performed on 41 euthanised stray dogs and 27 cats in the tallinn dog home. additionally, 13 wild free-roami ... | 2006 | 17020143 |