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Abstract

Mecistocirrus digitatus is a hematophagous abomasal nematode which causes significant blood and production losses in cattle. The objectives of the present study were to: (1) report the reappearance of M. digitatus in cattle from the Mexican tropics using microscopy, scanning electron microscopy...

Author(s)
Son-de-Fernex, E. von; Alonso-Díaz, M. Á.; Mendoza-de-Gives, P.; Valles-de la Mora, B.; Liébano-Hernández, E.; López-Arellano, M. E.; Aguilar-Marcelino, L.
Publisher
American Society of Parasitologists, Lawrence, USA
Citation
Journal of Parasitology, 2014, 100, 3, pp 296-301
Abstract

The legume Cratylia argentea associated to Brachiaria brizantha-Toledo-grass (Bb+Ca) and Toledo-grass alone (Bb) were evaluated under grazing conditions by Holstein × Zebu heifers. Three evaluation periods during three consecutive years, were performed. We measured, daily live-weight gains of...

Author(s)
Valles-de la Mora, B.; Castillo-Gallegos, E.; Alonso-Díaz, M. Á.; Ocaña-Zavaleta, E.; Jarillo-Rodríguez, J.
Publisher
Springer, Amsterdam, Netherlands
Citation
Agroforestry Systems, 2017, 91, 6, pp 1057-1068
Abstract

The objectives of this study were: (1) to determine the prevalence and factors associated with Rhipicephalus microplus, resistant to cypermethrin and amitraz, from cattle farms in Veracruz, Mexico, and (2) to determine in vitro mortality percentages of field populations of R. microplus exposed to...

Author(s)
Fernández-Salas, A.; Rodríguez-Vivas, R. I.; Alonso-Díaz, M. Á.
Publisher
American Society of Parasitologists, Lawrence, USA
Citation
Journal of Parasitology, 2012, 98, 5, pp 1010-1014
Abstract

The objectives of the present study were: (1) to report the percentage of cattle farms with gastrointestinal nematodes (GINs) resistant to levamisole in Veracruz, Mexico, (2) to identify the genera of GINs involved in resistance, and (3) to identify factors associated with these resistances. The...

Author(s)
Becerra-Nava, R.; Alonso-Díaz, M. A.; Fernández-Salas, A.; Quiroz, R. H.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2014, 204, 3/4, pp 285-290
Abstract

This study reports the percentage of cattle farms with ivermectin (IVM) resistant gastrointestinal nematodes (GINs) in Veracruz, Mexico, and identifies the GIN genera involved in the resistances. It also describes management practices of anthelmintic (AH) use on the surveyed farms. Twenty-one farms ...

Author(s)
Alonso-Díaz, M. A.; Arnaud-Ochoa, R. A.; Becerra-Nava, R.; Torres-Acosta, J. F. J.; Rodriguez-Vivas, R. I.; Quiroz-Romero, R. H.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2015, 212, 3/4, pp 439-443
Abstract

The aim of this study was to determine the annual population dynamics of Boophilus microplus in two cattle genotypes. The study was carried out in Martinez de la Torre, Veracruz, Mexico (tropical humid region). Twenty 10-month-old steers, 185 kg of body weight and naturally infested with B....

Author(s)
Alonso-Díaz, M. Á.; López-Silva, B. J.; Magalhães-Labarthe, A. C. L. de; Rodríguez-Vivas, R. I.
Publisher
Revista Veterinaria-Mexico, Facultad de Medicina Veterinaria y Zootecnia, Mexico City, Mexico
Citation
Veterinaria México, 2007, 38, 4, pp 503-509
Abstract

Background: Fasciolosis due to Fasciola hepatica is the most important hepatic disease in veterinary medicine. Its relevance is important because of the major economical losses to the cattle industry such as: reduction in milk, meat and wool production; miscarriages, anemia, liver condemnation and...

Author(s)
Alvarez-Mercado, J. M.; Ibarra-Velarde, F.; Alonso-Díaz, M. Á.; Vera-Montenegro, Y.; Avila-Acevedo, J. G.; García-Bores, A. M.
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Veterinary Research, 2015, 11, 45, pp (27 February 2015)
Abstract

The objectives of the present study were: (i) to identify the frequency of cattle farms with a cohabitation of Amblyomma cajennense and Rhipicephalus microplus, (ii) to determine the status of susceptibility or resistance to acaricides used in Veracruz, Mexico, on A. cajennense populations and...

Author(s)
Alonso-Díaz, M. A.; Fernández-Salas, A.; Martínez-Ibáñez, F.; Osorio-Miranda, J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2013, 197, 1/2, pp 326-331
Abstract

The objectives of the present study were to (1) determine the status of resistance or susceptibility to ivermectin (IVM) in Rhipicephalus microplus tick populations in Veracruz, Mexico, (2) determine the level of resistance (resistance ratios [RR] and lethal concentrations for 50% [LC50] and 99%...

Author(s)
Fernández-Salas, A.; Rodríguez-Vivas, R. I.; Alonso-Díaz, M. A.; Basurto-Camberos, H.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 190, 1/2, pp 210-215
Abstract

We document the presence of a Rhipicephalus microplus tick population resistant to acaricides (organophosphates (OP), synthetic pyrethroids (SP), amitraz) and macrocyclic lactones (ML) (ivermectin). Engorged females of R. microplus were collected from a cattle farm in Veracruz, Mexico, to evaluate...

Author(s)
Fernández-Salas, A.; Rodríguez-Vivas, R. I.; Alonso-Díaz, M. A.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2012, 183, 3/4, pp 338-342

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