Mortality on grower/finisher-only swine operations in the United States

For 53 grower/finisher-only swine operations that participated in the United States National Animal Health Monitoring System 1995 National Swine Study, mortality among finisher pigs ranged from 0 to 12.0% over a 6-month period. Twenty-six (49.1%) had <2% mortality, and 27 (50.9%) had >2% morta...

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Main Authors: W.C. Losinger, E.J. Bush, M.A. Smith, B.A. Corso
Format: Article
Language:English
Published: Universidade Federal de Minas Gerais 1999-04-01
Series:Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000200003&tlng=en
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author W.C. Losinger
E.J. Bush
M.A. Smith
B.A. Corso
author_facet W.C. Losinger
E.J. Bush
M.A. Smith
B.A. Corso
author_sort W.C. Losinger
collection DOAJ
description For 53 grower/finisher-only swine operations that participated in the United States National Animal Health Monitoring System 1995 National Swine Study, mortality among finisher pigs ranged from 0 to 12.0% over a 6-month period. Twenty-six (49.1%) had <2% mortality, and 27 (50.9%) had >2% mortality. Nine (17.0%) operations experienced >4% mortality. Fisher's exact test revealed that operations with all-in all-out management were significantly more likely to have <2% mortality than operations with continuous management, and that operations where all finisher pigs came from farrowing units belonging to the operation (either on-site or off-site) were significantly more likely to have <2% mortality than operations where >1 grower/finisher pig came from another source. Larger operations (where >900 pigs entered the grower/finisher phase) practiced all-in, all-out management more frequently than smaller operations, and had a lower mean percent mortality than smaller operations. Diagnosis of Salmonella in finisher pigs performed at a laboratory or by a veterinarian in the 12 months prior to interview was associated with both increased percent mortality and increased percent mortality per day.
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spelling doaj.art-bdfb84e013b4432ab06be4daa643ca9c2022-12-21T21:23:29ZengUniversidade Federal de Minas GeraisArquivo Brasileiro de Medicina Veterinária e Zootecnia1678-41621999-04-01512141147Mortality on grower/finisher-only swine operations in the United StatesW.C. Losinger0E.J. Bush1M.A. Smith2B.A. Corso3Centers for Epidemiology and Animal HealthCenters for Epidemiology and Animal HealthCenters for Epidemiology and Animal HealthCenters for Epidemiology and Animal HealthFor 53 grower/finisher-only swine operations that participated in the United States National Animal Health Monitoring System 1995 National Swine Study, mortality among finisher pigs ranged from 0 to 12.0% over a 6-month period. Twenty-six (49.1%) had <2% mortality, and 27 (50.9%) had >2% mortality. Nine (17.0%) operations experienced >4% mortality. Fisher's exact test revealed that operations with all-in all-out management were significantly more likely to have <2% mortality than operations with continuous management, and that operations where all finisher pigs came from farrowing units belonging to the operation (either on-site or off-site) were significantly more likely to have <2% mortality than operations where >1 grower/finisher pig came from another source. Larger operations (where >900 pigs entered the grower/finisher phase) practiced all-in, all-out management more frequently than smaller operations, and had a lower mean percent mortality than smaller operations. Diagnosis of Salmonella in finisher pigs performed at a laboratory or by a veterinarian in the 12 months prior to interview was associated with both increased percent mortality and increased percent mortality per day.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000200003&tlng=enPigswine grower/finishermortalityanimal health
spellingShingle W.C. Losinger
E.J. Bush
M.A. Smith
B.A. Corso
Mortality on grower/finisher-only swine operations in the United States
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Pig
swine grower/finisher
mortality
animal health
title Mortality on grower/finisher-only swine operations in the United States
title_full Mortality on grower/finisher-only swine operations in the United States
title_fullStr Mortality on grower/finisher-only swine operations in the United States
title_full_unstemmed Mortality on grower/finisher-only swine operations in the United States
title_short Mortality on grower/finisher-only swine operations in the United States
title_sort mortality on grower finisher only swine operations in the united states
topic Pig
swine grower/finisher
mortality
animal health
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000200003&tlng=en
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AT bacorso mortalityongrowerfinisheronlyswineoperationsintheunitedstates