Association between chronic Anaplasma marginale and Babesia spp. infection and hematological parameters of taurine heifers.

Autor:	Rahal NM; Núcleo de Pesquisa, Ensino e Extensão em Pecuária - NUPEEC, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil., Luz GB; Núcleo de Pesquisa, Ensino e Extensão em Pecuária - NUPEEC, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil., Martins KR; Laboratório de Biologia Molecular Veterinária - LaBMol-Vet, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil., Gasperin BG; Rede Fibra, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, RS, Brasil., Feijó JO; Núcleo de Pesquisa, Ensino e Extensão em Pecuária - NUPEEC, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil., Dalto AGC; Rede Fibra, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, RS, Brasil.; Setor de Grandes Ruminantes, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brasil., Rovani MT; Rede Fibra, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, RS, Brasil.; Setor de Grandes Ruminantes, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, RS, Brasil., Cunha RC; Laboratório de Biologia Molecular Veterinária - LaBMol-Vet, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil., Corrêa MN; Núcleo de Pesquisa, Ensino e Extensão em Pecuária - NUPEEC, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.
Jazyk:	angličtina
Zdroj:	Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria [Rev Bras Parasitol Vet] 2023 Sep 01; Vol. 32 (3), pp. e006423. Date of Electronic Publication: 2023 Sep 01 (Print Publication: 2023).
DOI:	10.1590/S1984-29612023052
Abstrakt:	The aim of this study was to investigate the association between chronic Anaplasma marginale and Babesia spp. infection and hematological parameters of pregnant and non-pregnant taurine heifers. Blood samples from 94 females were collected on the first day (D-10) of timed artificial insemination (TAI) protocol and on pregnancy diagnosis (D+34). Hematological parameters were determined and compared between pregnant (PG) and non-pregnant (NPG) heifers, and within group at different sampling days. Real-time PCR (qPCR) was used to determine A. marginale and Babesia bovis infection, and for absolute quantification of Babesia spp. between PG and NPG groups. Correlation analysis was performed between the number of gDNA copies (CN) of Babesia spp. and hematological parameters. On D-10, mean hemoglobin concentration was higher for NPG, and hematocrit and total plasma protein were higher on D+34 for both groups. There was no difference in Babesia spp. CN between groups. In the first qPCR, all heifers were positive for A. marginale and B. bovis. Significant correlations were found between hemoglobin and erythrocyte and between hemoglobin and hematocrit (r = 0.8082 and r = 0.3009, respectively). Low levels of A. marginale and Babesia spp. did not affect hematological parameters of chronically infected pregnant and non-pregnant taurine heifers.
Databáze:	MEDLINE
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