Diurnal variations in canine hematological parameters after commercial feed feeding

Autores/as

DOI:

https://doi.org/10.5433/1679-0359.2020v41n5supl1p2219

Palabras clave:

Complete blood count, Dog, Food.

Resumen

Complete blood count (CBC) is the evaluation of blood cells, which provides resourceful information. Considering that inadequate fasting time is the most common pre-analytical error in laboratory diagnosis and is associated with lipemia in blood samples, which has not yet been adequately investigated in dogs, this study aimed to assess diurnal postprandial changes in the CBC of healthy dogs fed with industrialized feed. Eighteen clinically healthy dogs aged 2-6 years and weighing over 6 kg were enrolled in the study. All dogs received “Premium” industrialized feed every 12 hours. Blood was collected after a 12-hour fasting period at 6:00 am (baseline), followed by feeding and new blood samples collected hourly for the next 11 consecutive hours. Red blood cell (RBC) counts, red cell distribution width (RDW), white blood cell (WBC) counts, platelets, mean platelet volume (MPV) and hemoglobin were obtained using an automated veterinary cell counter. Hematocrit (HTC) was determined by Strumia's microcapillary method, differential leukocyte count was performed on hematological dye-stained blood smears and total plasma protein (TPP) was determined using refractometry. Variables were tested for normality and differences were considered significant when p < 0.05. A statistically significant decrease was observed in the erythrogram from 2 h for RBC and hemoglobin, from 3 h for HTC and from 4 h for MCV, persisting until the end of 11 hours. There was no change in MCHC and RDW. Regarding the leukogram, a significant increase in WBC was observed from 2 to 7 h, due to the increase in segmented neutrophils 2 to 8 h following feeding. Lymphocyte counts decreased significantly at 2 and 6 h following feeding. No alteration was observed in eosinophil, basophil, monocyte and platelet counts, as well as in MPV. From 5 h to 11 h after feeding, a significant decrease was seen on TPP. However, changes in hematological parameters did not exceed reference ranges for the canine species. Feeding dogs with industrialized feed caused statistically significant changes in erythrogram, leukogram and plasma protein content. While these changes do not seem to exceed reference values for the species in healthy animals, caution is warranted for sick animals with borderline values, in which these changes might be clinically important depending on the pathologic process.

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Biografía del autor/a

Letícia Ramos Costa, Centro Universitário das Faculdades Integradas de Ourinhos

Médica Veterinária, Programa de Aprimoramento Profissional em Medicina Veterinária, Área Laboratório Diagnóstico Veterinário, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

Nathalia Lopes Tavares da Silva, Faculdade de Medicina Veterinária de Araçatuba

Médica Veterinária, Programa de Residência Multiprofissional em Medicina Veterinária, Área Laboratório Clínico Veterinário, Faculdade Medicina Veterinária de Araçatuba, FMVA, UNESP, Araçatuba, SP, Brasil.

Paula Lima de Oliveira, Centro Universitário das Faculdades Integradas de Ourinhos

Médica Veterinária, Programa de Aprimoramento Profissional em Medicina Veterinária, Área Laboratório Diagnóstico Veterinário, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

Natalia Camila Minucci Bonatto, Universidade Estadual de Londrina

Discente, Curso de Mestrado do Programa de Pós-Graduação em Ciência Animal, Universidade Estadual de Londrina, UEL, Londrina, PR, Brasil.

Guilherme Coutinho Vieira, Centro Universitário das Faculdades Integradas de Ourinhos

Médico Veterinário. Programa de Aprimoramento Profissional em Medicina Veterinária, Área Clínica Cirúrgica de Pequenos Animais, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

Beatriz Perez Floriano, Centro Universitário das Faculdades Integradas de Ourinhos

Profa Dra, Curso de Graduação em Medicina Veterinária, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

Luiz Daniel de Barros, Universidade Estadual de Londrina

Prof. Dr., Curso de Graduação em Medicina Veterinária, UEL, Londrina, PR, Brasil.

Maria Rachel Melo Bosculo, Centro Universitário das Faculdades Integradas de Ourinhos

Farmacêutica, Hospital Veterinário “Roque Quagliato”, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

Breno Fernando Martins de Almeida, Centro Universitário das Faculdades Integradas de Ourinhos

Prof. Dr., Curso de Graduação em Medicina Veterinária, Centro Universitário das Faculdades Integradas de Ourinhos, Unifio, Ourinhos, SP, Brasil.

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Publicado

2020-08-07

Cómo citar

Costa, L. R., Silva, N. L. T. da, Oliveira, P. L. de, Bonatto, N. C. M., Vieira, G. C., Floriano, B. P., Barros, L. D. de, Bosculo, M. R. M., & Almeida, B. F. M. de. (2020). Diurnal variations in canine hematological parameters after commercial feed feeding. Semina: Ciências Agrárias, 41(5supl1), 2219–2230. https://doi.org/10.5433/1679-0359.2020v41n5supl1p2219

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