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| Registros recuperados: 12 | |
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| Miller, Gay Y.; Liu, Xuanli; McNamara, Paul E.; Bush, Eric J.. |
| Antibiotics have been used by pig producers for several decades, and are now used routinely. This study documents the current productivity and economic impacts of the use of antibiotics for growth promotion (AGP) by pig grower/finishers at the farm level. We evaluate the impacts of an AGP ban, and use of AGP by all pig grower/finishers for 61S90 days (a more production-efficient level), using data from the National Animal Health Monitoring System Swine 2000 Survey. Findings indicate that pig productivity improves with AGP. Relative to current use, an AGP ban would decrease producer profits by $1,400 per 1,020-head barn, and profits would increase by $1,992 for each grower/finisher barn when AGP is fed for 61 to 90 days. There is increasing concern about... |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Antimicrobial resistance; Growth promotion; Pigs; Production; Agricultural and Food Policy; Health Economics and Policy; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/59680 |
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| Miller, Gay Y.; Liu, Xuanli; McNamara, Paul E.; Bush, Eric J.. |
| Antibiotics have been used in animal production for several decades. Antibiotics are used routinely now in pork production (NAHMS 2002). There is increasing concern about the use of antibiotics in animal production. There is no hard evidence supporting the link of antibiotic use in animals to observations of antibiotic resistance infections in people. Nonetheless a careful examination of the value of continued antibiotic use in agricultural, and in pork production in particular is warranted. Therefore, the objective of our study is to validate the productivity and economic impacts of antibiotic use for pig producers at the farm level. We use data from the NAHMS 2000 swine survey. We estimate the combined affects from antibiotics used for growth... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/21931 |
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| 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 |
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| Miller, Gay Y.; Algozin, Kenneth A.; McNamara, Paul E.; Bush, Eric J.. |
| Public health experts are concerned about the diminishing efficacy of antibiotics. Some have called for a ban on growth-promoting antibiotics in animal agriculture. This study identifies the contribution of growth-promoting antibiotics in the grower/finisher phase of U.S. pork production. With National Animal Health Monitoring System swine data, relationships are estimated between growth-promoting antibiotic use and productivity. Results indicate improvements in average daily gain (0.5%), feed conversion ratio (1.1%), and mortality rate (reduced 0.22 percentage points); these productivity improvements translate into a profitability gain of $0.59 per pig marketed, or an improvement of 9% in net profits associated with growth promotion antibiotics. |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Economics; Growth promotants; Productivity; Resistance; Swine; Q12; Q18. |
| Ano: 2003 |
URL: http://purl.umn.edu/43146 |
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| 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 |
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| Registros recuperados: 12 | |
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