Comparative response of IGA and IGG activity and hematological parameters among four main beef-cattle breeds infected with gastrointestinal nematodes in the warm humid tropic of Mexico

Autor: J. Alfonso Hinojosa-Cuéllar, Javier Arece García, Pedro Mendoza de Gives, Jorge Oliva Hernández, Roberto González-Garduño, María Eugenia López Arellano, Carine Marie-Magdeleine, Glafiro Torres Hernández
Přispěvatelé: Universidad Autonoma Chapingo, Unidad Regional Universitaria Sursureste, Centro national de investigacion disciplinaria en parasitologia veterinaria (INIFAP ), Centro nacional de investigacion disciplinaria en parasitologia veterinaria (INIFAP ), Estacion Experimental de Pastos y Forrajes, Universidad de Matanzas, Unité de Recherches Zootechniques (URZ), Institut National de la Recherche Agronomique (INRA), Instituto de Recursos Genéticos y Productividad, Ganaderia, Colegio de Posgraduados, Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias [Mexico] (INIFAP), Universidad Popular de la Chontalpa, Universidad Autónoma de Chapingo (UACh), Centro nacional de investigacion disciplinaria en parasitologia veterinaria, South Regional Unit from Chapingo University : IP-2013/02
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Annals of Animal Science
Annals of Animal Science, 2017, 17 (3), pp.1-15. ⟨10.1515/aoas-2016-0089⟩
ISSN: 1642-3402
Popis: This study determined the immunoglobulin (A and G) activity against gastrointestinal nematodes (GIN) and also the hematological parameters in four beef-calf breeds naturally infected in a tropical region of Mexico. Thirty-six infected calves were used to determine the fecal nematode egg counts (FEC), the IgA and IgG activity in serum and saliva, the packed cell volume (PCV), the plasmatic protein (PP) and the differential leukocyte counts. These parameters were measured for a five-month period. ELISA assay was performed using adult worm crude antigen (AWCA) from Haemonchus contortus, Trichostrongylus colubriformis, Mecistocirrus digitatus and Cooperia punctata. The variables were analyzed using a fixed model according to the breed group. The FEC records (means ± standard deviation) for the different breeds were: Brangus (122±115), Charolais (391±507), Guzerat (294±326) and Brown Swiss (413±395). No statistical differences (P>0.05) were found among breeds. Cooperia and Haemonchus were the main identified genera in the coprocultures. Differences in hematological parameters were observed among breeds (P9 cells L-1). Differences between Guzerat and Charolais were only detected in eosinophils, neutrophils and lymphocytes. Increased activity of IgA was observed against M. digitatus (21% OD) compared with the response against C. punctata in serum samples (13% OD). The lowest IgA activity in serum and saliva was found in Guzerat calves. Charolais and Brown Swiss showed the highest IgA activity in serum and the highest value in saliva was found in Brangus.
Databáze: OpenAIRE