Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina

The intensification of cattle finishing systems in Argentina has increased productivity but has also introduced new health challenges. This study analyzed mortality and treatment patterns in a commercial feedlot in northwestern Argentina during 2022. A total of 426 necropsies were performed, corresp...

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Autores principales: Micheloud, Juan Francisco, García Prieto, Rodrigo Nicolás, Peroné, F., Bernacki, U., Sarmiento, J., Igusquiza, J.I., Signorini, Marcelo
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste 2026
Materias:
Beef cattle
animal health
intensive systems
epidemiology
Bovinos de carne
sanidad animal
sistemas intensivos
epidemiología
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/9104
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
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institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Beef cattle
animal health
intensive systems
epidemiology
Bovinos de carne
sanidad animal
sistemas intensivos
epidemiología
spellingShingle Beef cattle
animal health
intensive systems
epidemiology
Bovinos de carne
sanidad animal
sistemas intensivos
epidemiología
Micheloud, Juan Francisco
García Prieto, Rodrigo Nicolás
Peroné, F.
Bernacki, U.
Sarmiento, J.
Igusquiza, J.I.
Signorini, Marcelo
Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
topic_facet Beef cattle
animal health
intensive systems
epidemiology
Bovinos de carne
sanidad animal
sistemas intensivos
epidemiología
author Micheloud, Juan Francisco
García Prieto, Rodrigo Nicolás
Peroné, F.
Bernacki, U.
Sarmiento, J.
Igusquiza, J.I.
Signorini, Marcelo
author_facet Micheloud, Juan Francisco
García Prieto, Rodrigo Nicolás
Peroné, F.
Bernacki, U.
Sarmiento, J.
Igusquiza, J.I.
Signorini, Marcelo
author_sort Micheloud, Juan Francisco
title Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
title_short Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
title_full Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
title_fullStr Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
title_full_unstemmed Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina
title_sort mortality causes and treatment patterns in a commercial feedlot in northwestern argentina
description The intensification of cattle finishing systems in Argentina has increased productivity but has also introduced new health challenges. This study analyzed mortality and treatment patterns in a commercial feedlot in northwestern Argentina during 2022. A total of 426 necropsies were performed, corresponding to an annual mortality rate of 1.67%, and 2,463 therapeutic treatments were recorded. The main causes of death were non adaptation syndrome (17.8%), respiratory diseases (16.4%), anemia-inducing diseases such as anaplasmosis and babesiosis (11.7%), digestive disorders (10.7%), traumatic injuries (8.9%), localized inflammatory processes (8.9%), neurological disorders (8.9%), genitourinary disorders (4.9%), and heat stress (4.9%). Mortality was significantly associated with season (p<0.001), with higher rates observed during winter and summer. Most deaths (80%) occurred in purchased cattle weighing less than 180 kg at entry; these animals were seven times more likely to die than farm-born cattle. Respiratory disease was the leading cause of treatment (1.51%), followed by babesiosis (0.43%) and digestive disorders (0.46%), both showing marked seasonal patterns. Necropsy findings frequently included fibrinous or suppurative pneumonia, acute rumenitis, bloat, peritonitis, pericarditis, and polioencephalomalacia. These results highlight the multifactorial nature of mortality in feedlot cattle and emphasize the need for preventive strategies adapted to local conditions, focusing on stress reduction, nutritional management, and improved biosecurity to mitigate respiratory and hemolytic diseases.
publisher Universidad Nacional del Nordeste
publishDate 2026
url https://revistas.unne.edu.ar/index.php/vet/article/view/9104
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spelling I48-R154-article-91042026-02-04T15:47:16Z Mortality causes and treatment patterns in a commercial feedlot in northwestern Argentina Causas de mortalidad y tasas de tratamiento en un feedlot comercial del noroeste de Argentina Micheloud, Juan Francisco García Prieto, Rodrigo Nicolás Peroné, F. Bernacki, U. Sarmiento, J. Igusquiza, J.I. Signorini, Marcelo Beef cattle animal health intensive systems epidemiology Bovinos de carne sanidad animal sistemas intensivos epidemiología The intensification of cattle finishing systems in Argentina has increased productivity but has also introduced new health challenges. This study analyzed mortality and treatment patterns in a commercial feedlot in northwestern Argentina during 2022. A total of 426 necropsies were performed, corresponding to an annual mortality rate of 1.67%, and 2,463 therapeutic treatments were recorded. The main causes of death were non adaptation syndrome (17.8%), respiratory diseases (16.4%), anemia-inducing diseases such as anaplasmosis and babesiosis (11.7%), digestive disorders (10.7%), traumatic injuries (8.9%), localized inflammatory processes (8.9%), neurological disorders (8.9%), genitourinary disorders (4.9%), and heat stress (4.9%). Mortality was significantly associated with season (p<0.001), with higher rates observed during winter and summer. Most deaths (80%) occurred in purchased cattle weighing less than 180 kg at entry; these animals were seven times more likely to die than farm-born cattle. Respiratory disease was the leading cause of treatment (1.51%), followed by babesiosis (0.43%) and digestive disorders (0.46%), both showing marked seasonal patterns. Necropsy findings frequently included fibrinous or suppurative pneumonia, acute rumenitis, bloat, peritonitis, pericarditis, and polioencephalomalacia. These results highlight the multifactorial nature of mortality in feedlot cattle and emphasize the need for preventive strategies adapted to local conditions, focusing on stress reduction, nutritional management, and improved biosecurity to mitigate respiratory and hemolytic diseases. La intensificación de los sistemas de engorde a corral en Argentina ha incrementado la productividad, pero también ha introducido desafíos sanitarios. Este estudio analizó las tasas de mortalidad y tratamientos en un feedlot comercial del noroeste argentino durante 2022. Se realizaron un total de 426 necropsias, que representaron una tasa anual de mortalidad del 1,67%, y se registraron 2.463 tratamientos. Las principales causas de muerte fueron el síndrome de mala adaptación al feedlot (17,8%), las enfermedades respiratorias (16,4%), las enfermedades que inducen anemia (como anaplasmosis y babesiosis, 11,7%), los trastornos digestivos (10,7%), las lesiones traumáticas (8,9%), los procesos inflamatorios localizados (8,9%), los trastornos neurológicos (8,9%), las enfermedades genitourinarias (4,9%) y el estrés térmico (4,9%). La mortalidad se asoció significativamente con la estación del año (p<0,001), observándose tasas más elevadas en invierno y verano. La mayoría de las muertes (80%) ocurrió en animales comprados con un peso de ingreso inferior a 180 kg; estos tuvieron siete veces más probabilidad de morir que los animales nacidos en el establecimiento. La enfermedad respiratoria fue la principal causa de tratamiento (1,51%), seguida de babesiosis (0,43%) y los trastornos digestivos (0,46%), ambos con picos estacionales. Los hallazgos de necropsia incluyeron con frecuencia neumonías fibrinosas o supurativas, rumenitis aguda, timpanismo, peritonitis, pericarditis y polioencefalomalacia. Estos resultados destacan la naturaleza multifactorial de la mortalidad en bovinos en feedlot y la necesidad de estrategias preventivas adaptadas a las condiciones locales. Dichas estrategias deben enfocarse en reducir el estrés, adecuar la nutrición y mejorar la bioseguridad para mitigar enfermedades respiratorias y hemolíticas. Universidad Nacional del Nordeste 2026-02-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/9104 10.30972/vet.3719104 Revista Veterinaria; Vol. 37 (2026); 1-8 Revista Veterinaria; Vol. 37 (2026); 1-8 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/9104/8820 Derechos de autor 2026 Juan Francisco Micheloud, Rodrigo Nicolás García Prieto, F. Peroné, U. Bernacki, J. Sarmiento, J.I. Igusquiza, Marcelo Signorini https://creativecommons.org/licenses/by-nc/4.0

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