Respiratory distress in Holstein cows fed corn silage: case report

An outbreak of respiratory distress was observed in Holstein cows immediately after consuming a new batch of corn-silage, presumably due to the presence of pneumotoxic gases. Signs were observed in 10% of the cows, and characterized as tachypnea, orthopneic position, cough and notable anxiety a few...

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Autores principales: Sosa, E., Ricci, P., Di Leo, C., Lombardi, B., Escapil, J., Turcato, A. I., Crivella, R., Cantón, G. J.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Universidad Nacional del Nordeste 2023
Materias:
ruminant
dairy
dyspnea
maize
toxic gases
rumiantes
tambo
disnea
maíz
gases tóxicos
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/7056
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7056
record_format ojs
spelling I48-R154-article-70562023-11-28T20:46:09Z Respiratory distress in Holstein cows fed corn silage: case report Enfermedad respiratoria en vacas Holstein alimentadas con silaje de maíz: reporte de caso Sosa, E. Ricci, P. Di Leo, C. Lombardi, B. Escapil, J. Turcato, A. I. Crivella, R. Cantón, G. J. ruminant dairy dyspnea maize toxic gases rumiantes tambo disnea maíz gases tóxicos An outbreak of respiratory distress was observed in Holstein cows immediately after consuming a new batch of corn-silage, presumably due to the presence of pneumotoxic gases. Signs were observed in 10% of the cows, and characterized as tachypnea, orthopneic position, cough and notable anxiety a few minutes after offering the silage. No deaths were recorded. Mild leucocytosis was observed in the hemogram. Nutritional analysis and nitrate determination of the corn-silage revealed usual values. Nitrous oxide and methane concentration were evaluated by gas chromatography and nitrogen oxides concentration directly with a portable device, resulting in acceptable values. Although high concentrations of toxic gases could not be evidenced in the air sampled on farm, the clinical signs observed coincide with those reported in cases of exposure to gases formed during corn silage processes. A greater emphasis is required in the evaluation of the corn to be ensiled, given the possible existence of factors that can generate the accumulation of potentially toxic gases for cattle that affect negatively their health and productivity. Se describe un brote de enfermedad respiratoria en vacas Holando Argentino, inmediatamente luego del consumo de un nuevo silaje de planta entera de maíz, presuntamente con presencia de gases neumotóxicos. Se observaron signos en el 10% de las vacas, caracterizados como taquipnea, posición ortopnéica, episodios de tos y ansiedad, unos minutos luego del ofrecimiento del silaje. No se registraron muertes. En el hemograma se observó leucocitosis leve. El análisis de calidad nutricional del alimento y la concentración de nitratos en el silaje de maíz resultó con los valores habituales. Se evaluó la concentración de óxido nitroso y metano en una muestra de silaje de maíz recolectada herméticamente por cromatografía gaseosa, así como la concentración de óxidos de nitrógeno in situ con un instrumento portátil, resultando en valores aceptables. Aunque no se pudieron evidenciar concentraciones de gases elevadas en el aire del silaje muestreado en el tambo, los signos clínicos observados coinciden con los casos reportados de exposición a gases que se forman durante la fermentación del ensilado. Se debería tener en cuenta la evaluación del maíz a ser ensilado, dadas las posibilidades de que se genere la acumulación de gases potencialmente tóxicos para el ganado, que puedan afectar negativamente su salud y productividad. Universidad Nacional del Nordeste 2023-11-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/7056 10.30972/vet.3427056 Revista Veterinaria; Vol. 34 Núm. 2 (2023); 126-129 1669-6840 1668-4834 eng https://revistas.unne.edu.ar/index.php/vet/article/view/7056/6513 https://creativecommons.org/licenses/by/2.5/ar/
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Inglés
format Artículo revista
topic ruminant
dairy
dyspnea
maize
toxic gases
rumiantes
tambo
disnea
maíz
gases tóxicos
spellingShingle ruminant
dairy
dyspnea
maize
toxic gases
rumiantes
tambo
disnea
maíz
gases tóxicos
Sosa, E.
Ricci, P.
Di Leo, C.
Lombardi, B.
Escapil, J.
Turcato, A. I.
Crivella, R.
Cantón, G. J.
Respiratory distress in Holstein cows fed corn silage: case report
topic_facet ruminant
dairy
dyspnea
maize
toxic gases
rumiantes
tambo
disnea
maíz
gases tóxicos
author Sosa, E.
Ricci, P.
Di Leo, C.
Lombardi, B.
Escapil, J.
Turcato, A. I.
Crivella, R.
Cantón, G. J.
author_facet Sosa, E.
Ricci, P.
Di Leo, C.
Lombardi, B.
Escapil, J.
Turcato, A. I.
Crivella, R.
Cantón, G. J.
author_sort Sosa, E.
title Respiratory distress in Holstein cows fed corn silage: case report
title_short Respiratory distress in Holstein cows fed corn silage: case report
title_full Respiratory distress in Holstein cows fed corn silage: case report
title_fullStr Respiratory distress in Holstein cows fed corn silage: case report
title_full_unstemmed Respiratory distress in Holstein cows fed corn silage: case report
title_sort respiratory distress in holstein cows fed corn silage: case report
description An outbreak of respiratory distress was observed in Holstein cows immediately after consuming a new batch of corn-silage, presumably due to the presence of pneumotoxic gases. Signs were observed in 10% of the cows, and characterized as tachypnea, orthopneic position, cough and notable anxiety a few minutes after offering the silage. No deaths were recorded. Mild leucocytosis was observed in the hemogram. Nutritional analysis and nitrate determination of the corn-silage revealed usual values. Nitrous oxide and methane concentration were evaluated by gas chromatography and nitrogen oxides concentration directly with a portable device, resulting in acceptable values. Although high concentrations of toxic gases could not be evidenced in the air sampled on farm, the clinical signs observed coincide with those reported in cases of exposure to gases formed during corn silage processes. A greater emphasis is required in the evaluation of the corn to be ensiled, given the possible existence of factors that can generate the accumulation of potentially toxic gases for cattle that affect negatively their health and productivity.
publisher Universidad Nacional del Nordeste
publishDate 2023
url https://revistas.unne.edu.ar/index.php/vet/article/view/7056
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first_indexed 2024-08-21T22:35:54Z
last_indexed 2024-08-21T22:35:54Z
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