Ruminal Acidosis in Feedlot: From Aetiology to Prevention

Acute ruminal acidosis is a metabolic status defined by decreased blood pH and bicarbonate, caused by overproduction of ruminal D-lactate. It will appear when animals ingest excessive amount of nonstructural carbohydrates with low neutral detergent fiber. Animals will show ruminal hypotony/atony wit...

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Main Authors: Joaquín Hernández, José Luis Benedito, Angel Abuelo, Cristina Castillo
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/702572
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author Joaquín Hernández
José Luis Benedito
Angel Abuelo
Cristina Castillo
author_facet Joaquín Hernández
José Luis Benedito
Angel Abuelo
Cristina Castillo
author_sort Joaquín Hernández
collection DOAJ
description Acute ruminal acidosis is a metabolic status defined by decreased blood pH and bicarbonate, caused by overproduction of ruminal D-lactate. It will appear when animals ingest excessive amount of nonstructural carbohydrates with low neutral detergent fiber. Animals will show ruminal hypotony/atony with hydrorumen and a typical parakeratosis-rumenitis liver abscess complex, associated with a plethora of systemic manifestations such as diarrhea and dehydration, liver abscesses, infections of the lung, the heart, and/or the kidney, and laminitis, as well as neurologic symptoms due to both cerebrocortical necrosis and the direct effect of D-lactate on neurons. In feedlots, warning signs include decrease in chewing activity, weight, and dry matter intake and increase in laminitis and diarrhea prevalence. The prognosis is quite variable. Treatment will be based on the control of systemic acidosis and dehydration. Prevention is the most important tool and will require normalization of ruminal pH and microbiota. Appropriate feeding strategies are essential and involve changing the dietary composition to increase neutral detergent fiber content and greater particle size and length. Appropriate grain processing can control the fermentation rate while additives such as prebiotics or probiotics can help to stabilize the ruminal environment. Immunization against producers of D-lactate is being explored.
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spelling doaj-art-4f193ab890fb41c0a23603f92d710cdf2025-02-03T05:48:39ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/702572702572Ruminal Acidosis in Feedlot: From Aetiology to PreventionJoaquín Hernández0José Luis Benedito1Angel Abuelo2Cristina Castillo3Department of Animal Pathology, Faculty of Veterinary Science, University of Santiago de Compostela, Campus Universitario, 27002 Lugo, SpainDepartment of Animal Pathology, Faculty of Veterinary Science, University of Santiago de Compostela, Campus Universitario, 27002 Lugo, SpainDepartment of Animal Pathology, Faculty of Veterinary Science, University of Santiago de Compostela, Campus Universitario, 27002 Lugo, SpainDepartment of Animal Pathology, Faculty of Veterinary Science, University of Santiago de Compostela, Campus Universitario, 27002 Lugo, SpainAcute ruminal acidosis is a metabolic status defined by decreased blood pH and bicarbonate, caused by overproduction of ruminal D-lactate. It will appear when animals ingest excessive amount of nonstructural carbohydrates with low neutral detergent fiber. Animals will show ruminal hypotony/atony with hydrorumen and a typical parakeratosis-rumenitis liver abscess complex, associated with a plethora of systemic manifestations such as diarrhea and dehydration, liver abscesses, infections of the lung, the heart, and/or the kidney, and laminitis, as well as neurologic symptoms due to both cerebrocortical necrosis and the direct effect of D-lactate on neurons. In feedlots, warning signs include decrease in chewing activity, weight, and dry matter intake and increase in laminitis and diarrhea prevalence. The prognosis is quite variable. Treatment will be based on the control of systemic acidosis and dehydration. Prevention is the most important tool and will require normalization of ruminal pH and microbiota. Appropriate feeding strategies are essential and involve changing the dietary composition to increase neutral detergent fiber content and greater particle size and length. Appropriate grain processing can control the fermentation rate while additives such as prebiotics or probiotics can help to stabilize the ruminal environment. Immunization against producers of D-lactate is being explored.http://dx.doi.org/10.1155/2014/702572
spellingShingle Joaquín Hernández
José Luis Benedito
Angel Abuelo
Cristina Castillo
Ruminal Acidosis in Feedlot: From Aetiology to Prevention
The Scientific World Journal
title Ruminal Acidosis in Feedlot: From Aetiology to Prevention
title_full Ruminal Acidosis in Feedlot: From Aetiology to Prevention
title_fullStr Ruminal Acidosis in Feedlot: From Aetiology to Prevention
title_full_unstemmed Ruminal Acidosis in Feedlot: From Aetiology to Prevention
title_short Ruminal Acidosis in Feedlot: From Aetiology to Prevention
title_sort ruminal acidosis in feedlot from aetiology to prevention
url http://dx.doi.org/10.1155/2014/702572
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