Consulta: creatorFacets:"Hallam,   Arne"
Registros recuperados: 3
Data/hora: 02/06/2024 14:35:44

A BRIEF OVERVIEW OF NONPARAMETRIC METHODS IN ECONOMICS
Provedor de dados: 31
Autores: Hallam,   Arne.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1992
URL: http://purl.umn.edu/29001

TOXOPLASMA GONDII IN U.S. SWINE OPERATIONS: AN ASSESSMENT OF MANAGEMENT FACTORS
Provedor de dados: 31
Autores: Hu,   Xianfeng; Kliebenstein,   James B.; Patton,   Sharon; Zimmerman,   Jeffrey; Hallam,   Arne; Roberts,   Tanya; Bush,   Eric J.
Sera from hogs were analyzed using the modified direct agglutination test (MAT).  Serum samples were collected from sows which were part of the National Animal Health Monitoring System  (NAHMS) swine survey.  The blood sera on file represented 394 randomly selected hog farms throughout the United States.  Additionally, the NAHMS survey included information on type of production facilities and level of cat, dog, or bird access to the facilities.  Of the sows tested 19 percent tested positive for toxoplasmosis. This study showed a positive relationship between sows or herds testing positive for Toxoplasma gondii and three factors:  1) method of rodent control, 2) type of production facility, and 3) access of certain animals (cats, dogs, birds) to production...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/18244

TOXOPLASMA GONDII LEVELS IN SWINE OPERATIONS: DIFFERENCES DUE TO TECHNOLOGY CHOICE AND IMPACT ON COSTS OF PRODUCTION
Provedor de dados: 31
Autores: Wang,   Chun-Hsuan; Diderrich,   Vina; Kliebenstein,   James B.; Patton,   Sharon; Zimmerman,   Jeffrey; Hallam,   Arne; Bush,   Eric J.; Faulkner,   Charles.
Serum samples were collected from 3236 sows and 4712 market hogs in 1995.  Sera were collected from sows on 226 farms, while market hog sera was obtained from 282 farms.  Herds were randomly selected to participate in the 1995 National Animal Health Monitoring System (NAHMS) swine survey.  Sera were assayed for antibodies against Toxoplasma gondii using the modified direct agglutination test.  Herd data and serologic information were used to study the association between T. gondii infection in sows and specific herd characteristics and farm management practices.  Overall, 15.1 percent of sows and 3.2 percent of finishers were positive for toxoplasmosis.  Analysis of the data showed significant associations between toxoplasmosis in sows or herds and three...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/18263