Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique

Parasitic diseases are responsible for economic losses in the pig production industry. It is necessary to monitor the parasite load through stool ova and parasite analysis to avoid losses to the producer. Among analytical tests, the McMaster technique is the most widely used method; however, several...

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Main Authors: Mariana Costa Fausto, Luís Henrique Gouvêa Saraiva, Guilherme Costa Fausto, Lorendane Millena de Carvalho, Fabrício Luciani Valente, Marisa Caixeta Valadão, Artur Kanadani Campos, Jackson Victor de Araújo
Format: Article
Language:English
Published: Sociedade de Medicina Veterinária do Estado do Rio de Janeiro 2021-10-01
Series:Brazilian Journal of Veterinary Medicine
Subjects:
Online Access:https://rbmv.org/BJVM/article/view/1198
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author Mariana Costa Fausto
Luís Henrique Gouvêa Saraiva
Guilherme Costa Fausto
Lorendane Millena de Carvalho
Fabrício Luciani Valente
Marisa Caixeta Valadão
Artur Kanadani Campos
Jackson Victor de Araújo
author_facet Mariana Costa Fausto
Luís Henrique Gouvêa Saraiva
Guilherme Costa Fausto
Lorendane Millena de Carvalho
Fabrício Luciani Valente
Marisa Caixeta Valadão
Artur Kanadani Campos
Jackson Victor de Araújo
author_sort Mariana Costa Fausto
collection DOAJ
description Parasitic diseases are responsible for economic losses in the pig production industry. It is necessary to monitor the parasite load through stool ova and parasite analysis to avoid losses to the producer. Among analytical tests, the McMaster technique is the most widely used method; however, several variations of this method have been described, and, therefore, there is a need for standardization. The aim of this study was to evaluate the use of different saturated solutions prepared from four different salts (NaCl, MgSO4, NaNO3, ZnSO4), a sugar solution, and Polysorbate Tween 80, to perform the McMaster technique. Pig feces containing Ascaris suum eggs were homogenized in Griffin beakers and divided into 2g aliquots for the exams with different solutions. All solutions evaluated were able to float A. suum eggs. However, eggs per gram of feces (EPG) values using the sodium nitrate solution were higher (p < 0.05) than for the other solutions. Magnesium sulfate and sodium chloride solutions provided intermediate values for EPG. Lower values were obtained with zinc sulfate and sugar solutions. Polysorbate Tween 80 was added to the sodium nitrate solution at a concentration of 0.2%, and this proved to be more efficient (p < 0.05) in flotation of the eggs.
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spelling doaj.art-96ee44d9063941119306a8811255bbfa2022-12-21T16:50:44ZengSociedade de Medicina Veterinária do Estado do Rio de JaneiroBrazilian Journal of Veterinary Medicine0100-24302527-21792021-10-01431e002221e00222110.29374/2527-2179.bjvm0022211069Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster techniqueMariana Costa Fausto0Luís Henrique Gouvêa Saraiva1Guilherme Costa Fausto2Lorendane Millena de Carvalho3Fabrício Luciani Valente4Marisa Caixeta Valadão5Artur Kanadani Campos6Jackson Victor de Araújo7Veterinarian, DSc. Programa de Pós-Graduação em Medicina Veterinária (PPGMV), Laboratório de Parasitologia e Doenças Parasitárias, Departamento de Veterinária (DVT), Universidade Federal de Viçosa (UFV). Campus Viçosa, MG, Brazil and Faculdade de Ciências Biológicas e da Saúde, Univiçosa, Viçosa, MG, Brazil. Undergraduate in Veterinary Medicine, Faculdade de Ciências Biológicas e da Saúde, Univiçosa, Viçosa, MG, Brazil. Veterinarian, DSc. PPGMV, Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV. Campus Viçosa, MG, Brazil. / Veterinarian, DSc., Faculdade de Ciências Biológicas e da Saúde, Univiçosa, Viçosa, MG, Brazil.Veterinarian, DSc. PPGMV, Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV. Campus Viçosa, MG, Brazil. Veterinarian, DSc., Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV, Campus Viçosa, MG, Brazil. Veterinarian, Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV, Campus Viçosa, MG, Brazil.Veterinarian, DSc., Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV, Campus Viçosa, MG, Brazil.Veterinarian, DSc., Laboratório de Parasitologia e Doenças Parasitárias, DVT, UFV, Campus Viçosa, MG, Brazil.Parasitic diseases are responsible for economic losses in the pig production industry. It is necessary to monitor the parasite load through stool ova and parasite analysis to avoid losses to the producer. Among analytical tests, the McMaster technique is the most widely used method; however, several variations of this method have been described, and, therefore, there is a need for standardization. The aim of this study was to evaluate the use of different saturated solutions prepared from four different salts (NaCl, MgSO4, NaNO3, ZnSO4), a sugar solution, and Polysorbate Tween 80, to perform the McMaster technique. Pig feces containing Ascaris suum eggs were homogenized in Griffin beakers and divided into 2g aliquots for the exams with different solutions. All solutions evaluated were able to float A. suum eggs. However, eggs per gram of feces (EPG) values using the sodium nitrate solution were higher (p < 0.05) than for the other solutions. Magnesium sulfate and sodium chloride solutions provided intermediate values for EPG. Lower values were obtained with zinc sulfate and sugar solutions. Polysorbate Tween 80 was added to the sodium nitrate solution at a concentration of 0.2%, and this proved to be more efficient (p < 0.05) in flotation of the eggs.https://rbmv.org/BJVM/article/view/1198parasitological techniques, sodium nitrate, tween 80.
spellingShingle Mariana Costa Fausto
Luís Henrique Gouvêa Saraiva
Guilherme Costa Fausto
Lorendane Millena de Carvalho
Fabrício Luciani Valente
Marisa Caixeta Valadão
Artur Kanadani Campos
Jackson Victor de Araújo
Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
Brazilian Journal of Veterinary Medicine
parasitological techniques, sodium nitrate, tween 80.
title Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
title_full Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
title_fullStr Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
title_full_unstemmed Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
title_short Flotation solution influence on the quantification of Ascaris suum eggs in pig feces using McMaster technique
title_sort flotation solution influence on the quantification of ascaris suum eggs in pig feces using mcmaster technique
topic parasitological techniques, sodium nitrate, tween 80.
url https://rbmv.org/BJVM/article/view/1198
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