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Abstract

Twenty-five white-tailed deer (Odocoileus virginianus yucatanensis) (WTD), 4 mazama deer (Mazama temama) (MD), and the ticks they host in Yucatan, Mexico were sampled to run a molecular survey for tick-borne rickettsial agents. The prevalence of rickettsial agents was 20% in WTD (5/25) and 50% in...

Author(s)
Ojeda-Chi, M. M.; Rodriguez-Vivas, R. I.; Esteve-Gasent, M. D.; León, A. P. de; Modarelli, J. J.; Villegas-Perez, S.
Publisher
Elsevier GmbH, München, Germany
Citation
Ticks and Tick-borne Diseases, 2019, 10, 2, pp 365-370
Abstract

Rickettsial infection in dog-associated ticks in three rural communities of Yucatan, Mexico was investigated using qPCR and nested PCR assays. A total of 319 dogs were studied and ticks samples were collected. A total of 170 dogs were infested with ticks (frequency of 53.4%). Overall, 1,380 ticks...

Author(s)
Ojeda-Chi, M. M.; Rodriguez-Vivas, R. I.; Esteve-Gasent, M. D.; León, A. A. P. de; Modarelli, J. J.; Villegas-Perez, S. L.
Publisher
Wiley, Berlin, Germany
Citation
Transboundary and Emerging Diseases, 2019, 66, 1, pp 102-110
AbstractFull Text

Ticks and the diseases they transmit cause great economic losses to livestock in tropical countries. Non-chemical control alternatives include the use of resistant cattle breeds, biological control and vaccines. However, the most widely used method is the application of different chemical classes...

Author(s)
Rodríguez-Vivas, R. I.; Pérez-Cogollo, L. C.; Rosado-Aguilar, J. A.; Ojeda-Chi, M. M.; Trinidad-Martinez, I.; Miller, R. J.; Li, A. Y.; Pérez de León, A.; Guerrero, F.; Klafke, G.
Publisher
Colégio Brasileiro de Parasitologia Veterinária, São Paulo, Brazil
Citation
Brazilian Journal of Veterinary Parasitology, 2014, 23, 2, pp 113-122
Abstract

In the Neotropics the control of tick infestations in red deer (Cervus elaphus) is achieved primarily through the use of acaricides and macrocyclic lactones. In Mexico, resistance to one or multiple classes of acaricides has been reported in Rhipicephalus microplus infesting cattle, but information ...

Author(s)
Rodríguez-Vivas, R. I.; Miller, R. J.; Ojeda-Chi, M. M.; Rosado-Aguilar, J. A.; Trinidad-Martínez, I. C.; Pérez de León, A. A.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2014, 200, 1/2, pp 179-188
Abstract

A study was conducted to evaluate the efficacy of cypermethrin, amitraz, and piperonyl butoxide (PBO) mixtures, through in vitro laboratory bioassays and in vivo on-animal efficacy trials, for the control of resistant Rhipicephalus (Boophilus) microplus on cattle in the Mexican tropics. Also, to...

Author(s)
Rodriguez-Vivas, R. I.; Li, A. Y.; Ojeda-Chi, M. M.; Trinidad-Martinez, I.; Rosado-Aguilar, J. A.; Miller, R. J.; León, A. A. P. de
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 197, 1/2, pp 288-296
Abstract

The objective of the present study was to determine simultaneously the status of resistance against ivermectin (IVM) in gastrointestinal nematodes (GIN) and Rhipicephalus microplus (Canestrini, 1888) ticks in 12 cattle farms where IVM was used for the control of GIN in the Mexican tropics. Six...

Author(s)
Alegría-López, M. A.; Rodríguez-Vivas, R. I.; Torres-Acosta, J. F. J.; Ojeda-Chi, M. M.; Rosado-Aguilar, J. A.
Publisher
Entomological Society of America, Annapolis, USA
Citation
Journal of Medical Entomology, 2015, 52, 2, pp 214-221
Abstract

Rhipicephalus microplus is the most economically important cattle tick in the Mexican tropics. Wild ungulate species, including red deer (Cervus elaphus), are gaining popularity in diversified livestock ranching operations in Mexico. However, there is no information available on the susceptibility...

Author(s)
Rodríguez-Vivas, R. I.; Ojeda-Chi, M. M.; Rosado-Aguilar, J. A.; Trinidad-Martínez, I. C.; Torres-Acosta, J. F. J.; Ticante-Perez, V.; Castro-Marín, J. M.; Tapia-Moo, C. A.; Vázquez-Gómez, G.
Publisher
Springer, Amsterdam, Netherlands
Citation
Experimental and Applied Acarology, 2013, 60, 4, pp 543-552
Abstract

The objective of the present study was to evaluate the efficacy of Metarhizium anisopliae on the control of Rhipicephalus microplus in cattle infested naturally in the Mexican tropics. The study was carried out on a ranch in the Mexican tropics. Base on the number of adult and immature (larvae and...

Author(s)
Rodríguez-Alcocer, U. J.; Rodríguez-Vivas, R. I.; Ojeda-Chi, M. M.; Galindo-Velasco, E.; Lezama-Gutiérrez, R.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2014, 17, 2, pp 223-229
Abstract

The aim of the present study was to evaluate the effect of Metarhizium anisopliae to control Rhipicephalus microplus under laboratory and field conditions (larvae on vegetation) in the Mexican tropics. In the laboratory study, Ma34, Ma14 and a mixture of Ma34+Ma14 strains of M. anisopliae were...

Author(s)
Ojeda-Chi, M. M.; Rodriguez-Vivas, R. I.; Galindo-Velasco, E.; Lezama-Gutiérrrez, R.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2010, 170, 3/4, pp 348-354

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