Prevalence of inflamatory processes in the reproductive tracts of crossbred dairy cows

Authors

  • Paula Batista de Alvarenga Universidade Federal de Uberlândia
  • Danilo Oliveira Universidade Federal de Uberlândia
  • Thaisa Reis Santos Universidade Federal de Uberlândia
  • Soraia Rage Rezende Universidade Federal de Uberlândia
  • Oglênia Pereira Ramos Universidade Federal de Uberlândia
  • Paula Mara Ribeiro Troncha Universidade Federal de Uberlândia
  • Alessandra Aparecida Medeiros Universidade Federal de Uberlândia
  • Pablo Gomes Noleto Universidade Federal de Uberlândia
  • Selwyn Arlington Headley Universidade Estadual de Londrina http://orcid.org/0000-0002-1614-0185
  • Ricarda Maria dos Santos Universidade Federal de Uberlândia
  • João Paulo Elsen Saut Universidade Federal de Uberlândia

DOI:

https://doi.org/10.14393/BJ-v34n3a2018-37263

Keywords:

Cervicitis, Cytology, Cytobrush, Endometritis, Histology

Abstract

This study evaluated the prevalence of cervicitis and endometritis and their interrelations in crossbred dairy cows that were more than 60 days in milk (DIM), and the efficiency of the cytology technique (cytobrush) and histology as diagnostic methods for these diseases. The reproductive tracts (n=149) derived from cows were collected from a slaughterhouse and grossly evaluated to determine uterine involution and the phase of the estrous cycle. Subsequently, cervical and uterine cytological evaluations were done to characterize the inflammatory response as cervicitis (with a neutrophilic count greater than 5%) or endometritis (with more than 6% neutrophils). Additionally, randomly obtained samples from the cervix and uterus were collected for histological evaluation. Cytological evaluation revealed that the frequency of cervicitis was 6% (9/149), and endometritis was diagnosed in 8.1% (12/149) of the samples; both inflammatory reactions were diagnosed 2.1% (3/149) in three of these. Histological evaluation revealed that of the cows diagnosed with cervicitis by cytology, 66.6% (6/9) had no inflammatory reaction in the cervical mucosa, and 33.3% (3/9) had mild inflammation in this region. Histological evaluation of the uterine horn revealed that of the 12 cows diagnosed with endometritis by cytology, 50% (6/12) of these had a histological diagnosis of mild and moderate inflammatory responses, 8.3% (1/12) of these demonstrated a severe inflammatory response, while no inflammatory reaction was identified in 41.7% (5/12) of the endometrial biopsies evaluated. In conclusion, the endometrial and cervical inflammatory response diagnosed by the cytobrush technique persisted in 12.1% of the cows. Comparatively, the frequency of the inflammatory responses at the cervix and uterus was reduced by histological analysis relative to cytological evaluation with the cytobrush technique.

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Author Biography

Selwyn Arlington Headley, Universidade Estadual de Londrina

Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Paraná, Brazil

Published

2018-05-30

How to Cite

ALVARENGA, P.B. de, OLIVEIRA, D., SANTOS, T.R., REZENDE, S.R., RAMOS, O.P., TRONCHA, P.M.R., MEDEIROS, A.A., NOLETO, P.G.., HEADLEY, S.A., SANTOS, R.M. dos and SAUT, J.P.E., 2018. Prevalence of inflamatory processes in the reproductive tracts of crossbred dairy cows . Bioscience Journal [online], vol. 34, no. 3, pp. 703–708. [Accessed3 December 2022]. DOI 10.14393/BJ-v34n3a2018-37263. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/37263.

Issue

Section

Agricultural Sciences