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Registros recuperados: 20
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ANTIMICROBIAL DRUG USE AND VETERINARY COSTS IN U.S. LIVESTOCK PRODUCTION AgEcon
Mathews, Kenneth H., Jr..
Antimicrobial drugs are fed to animals at low levels to treat diseases, to promote growth, and to increase feed efficiency. Incorporating low levels of antimicrobial drugs in livestock feeds has been shown to be a factor stimulating the development of antimicrobial drug resistant bacteria in livestock. Since many of the drugs used to treat livestock are the same as or are related to drugs used in human health care, there is concern that resistant organisms may pass from animals to humans through the handling of animals or food derived from animals. The movement of pathogens from animals to humans, and vice versa, has been documented, but the extent to which it has occurred or could occur is unknown. Although it is estimated that as little as 10 percent of...
Tipo: Report Palavras-chave: Antimicrobial drugs; Pathogens; Growth promotion; Feed efficiency; Therapeutic drug use; Subtherapeutic drug use; Subclinical; Livestock Production/Industries.
Ano: 2001 URL: http://purl.umn.edu/33695
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Beef and Pork Byproducts: Enhancing the U.S. Meat Industry's Bottom Line AgEcon
Marti, Daniel L.; Johnson, Rachel J.; Mathews, Kenneth H., Jr..
Tipo: Article Palavras-chave: Agribusiness; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/121016
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Beef Cow-Calf Producer Participation in the National Animal Identification System AgEcon
McBride, William D.; Mathews, Kenneth H., Jr..
Tipo: Conference Paper or Presentation Palavras-chave: Farm Management; Livestock Production/Industries; Production Economics.
Ano: 2010 URL: http://purl.umn.edu/60977
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Beef Cow-Calf Production a Lifestyle Choice Among Many Farmers AgEcon
McBride, William D.; Mathews, Kenneth H., Jr..
Tipo: Article Palavras-chave: Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/121232
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CONTROLLING WILDLIFE AND LIVESTOCK DISEASE WITH ENDOGENOUS ON-FARM BIOSECURITY AgEcon
Horan, Richard D.; Wolf, Christopher A.; Fenichel, Eli P.; Mathews, Kenneth H., Jr..
The spread of infectious disease among and between wild and domesticated animals has become a major problem worldwide. We analyze the socially optimal management of wildlife and livestock, including choices involving environmental habitat variables and on-farm biosecurity controls, when wildlife and livestock can spread an infectious disease to each other. The model is applied to the problem of bovine tuberculosis among Michigan white-tailed deer. The optimum is a cycle in which the disease remains endemic in the wildlife, but in which the cattle herd is depleted when the prevalence rate in deer grows too large.
Tipo: Conference Paper or Presentation Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2004 URL: http://purl.umn.edu/20349
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Derived Demand for Cattle Feeding Inputs AgEcon
Mathews, Kenneth H., Jr.; Arnade, Carlos Anthony; Jones, Keithly G..
Derived demand relationships among four weight categories of feeder cattle entering Texas feedlots and their feed consumed are examined using a generalized McFadden dual cost function. Results demonstrate systematic differences in demand relationships among different weight categories. Positive cross-price elasticities among the three heaviest weight categories are consistent with input substitution among weight categories and consistent with objective functions associated with optimal placement weight. Anomalies in the form of negative cross-price elasticities between weight categories provide evidence for an alternative objective function associated with longer term feeding of light-weight feeder cattle. Results also demonstrate seasonality differences...
Tipo: Journal Article Palavras-chave: Cattle feeding; Derived demand; Elasticity; Feeder cattle; Generalized McFadden cost function; Agribusiness; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/90552
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Derived Demand for Cattle Feeding Inputs AgEcon
Arnade, Carlos Anthony; Mathews, Kenneth H., Jr.; Jones, Keithly G..
Derived demand relationships among four weight categories of feeder cattle entering Texas feedlots and feed were examined using a Generalized McFadden dual cost function specified as an error correction model. Relationships among own- and cross-price elasticities provide evidence for at least two cattle feeding enterprises, feeding lightweight feeder cattle (calves) and feeding heavier cattle. These results indicate systematic differences in demand relationships among the different weight classes, providing explanation and insight into mixed results from earlier studies. Seasonality differed across weight categories, providing additional support for multiple cattle feeding enterprises. A third step was added to the Engle-Granger two-step estimation...
Tipo: Conference Paper or Presentation Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2005 URL: http://purl.umn.edu/19454
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ECONOMIC EFFECTS OF A BAN AGAINST ANTIMICROBIAL DRUGS USED IN U.S. BEEF PRODUCTION AgEcon
Mathews, Kenneth H., Jr..
Economic effects for three scenarios of antimicrobial drug use in livestock production -- a no-ban scenario and two levels of bans -- are examined through cost minimization and a partial equilibrium analysis. Results indicate that regulating antimicrobial drug use in livestock production would increase per-unit costs of producers previously using drugs and reduce beef supplies in the short run, reducing consumer surplus. Producers not previously using drugs would benefit from short-run price increases.
Tipo: Journal Article Palavras-chave: Antimicrobial drug; Ban; Beef production; Cost minimization; Feed efficiency; Growth function; Growth promotant; Livestock Production/Industries; C61; D21; D41; I118; Q11; Q12; Q18; R38.
Ano: 2002 URL: http://purl.umn.edu/15068
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Economic Impacts of Foreign Animal Disease AgEcon
Paarlberg, Philip L.; Hillberg, Ann; Lee, John G.; Mathews, Kenneth H., Jr..
This report presents a modeling framework in which epidemiological model results are integrated with an economic model of the U.S. agricultural sector to enable estimation of the economic impacts of outbreaks of foreign-source livestock diseases. To demonstrate the model, the study assessed results of a hypothetical outbreak of foot-and-mouth disease (FMD). The modeling framework includes effects of the FMD episode on all major agricultural products and assesses these effects on aggregate supply, demand, and trade over 16 quarters. Model results show a potential for large trade-related losses for beef, beef cattle, hogs, and pork, though relatively few animals are destroyed. The swine and pork sectors recover shortly after assumed export restrictions end,...
Tipo: Report Palavras-chave: Animal disease; Epidemiology; Foot and mouth disease (FMD); Sector model; Trade; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; International Development; International Relations/Trade; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/56453
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ERS and Collaborators Model Foot-and-Mouth Disease Outbreaks AgEcon
Mathews, Kenneth H., Jr..
Tipo: Article Palavras-chave: Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/122960
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Food Safety Issues for Meat/Poultry Products and International Trade AgEcon
Mathews, Kenneth H., Jr.; Bernstein, Jason; Buzby, Jean C..
Tipo: Report Palavras-chave: Food Consumption/Nutrition/Food Safety; International Relations/Trade.
Ano: 2004 URL: http://purl.umn.edu/33637
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Global Market Opportunities Drive Beef Production Decisions in Argentina and Uruguay AgEcon
McConnell, Michael; Mathews, Kenneth H., Jr..
Tipo: Article Palavras-chave: Livestock Production/Industries; Marketing; Production Economics.
Ano: 2008 URL: http://purl.umn.edu/123215
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Grain Prices Impact Entire Livestock Production Cycle AgEcon
Stillman, Richard; Haley, Mildred M.; Mathews, Kenneth H., Jr..
Tipo: Article Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 2009 URL: http://purl.umn.edu/124051
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Lasting Influence of BSE on U.S. Protein Feed Markets AgEcon
Mathews, Kenneth H., Jr.; Pompelli, Greg.
Tipo: Article Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 2008 URL: http://purl.umn.edu/122814
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NATIONAL IMPACTS OF CHANGES IN LIVESTOCK DISEASE SURVEILLANCE AgEcon
Hillberg Seitzinger, Ann; Paarlberg, Philip L.; Mathews, Kenneth H., Jr..
This research estimates the U.S. economic welfare effects of livestock disease surveillance. One type of surveillance considers livestock diseases already in the United States. Annual national economic welfare increases $1.4 billion on average compared with a Federal surveillance budget for endemic diseases of $300 million annually. Other surveillance deals with reducing the risk of foreign animal diseases entering and becoming established. The estimated annual gain to producers from surveillance for foreign animal diseases is $401 million dollars. Consumers experience additional benefits of $170 million annually. Total annual benefits are $571 million versus a foreign animal disease surveillance budget of $165 million.
Tipo: Working or Discussion Paper Palavras-chave: Livestock disease; Surveillance; Economics; International Relations/Trade; Livestock Production/Industries; Q10; Q17.
Ano: 2010 URL: http://purl.umn.edu/97837
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Sub-therapeutic Antibiotics and Impacts on U.S. Hog Farms AgEcon
McBride, William D.; Key, Nigel D.; Mathews, Kenneth H., Jr..
Antimicrobial drugs are fed to hogs at sub-therapeutic levels to prevent disease and promote growth. However, there is concern that the presence of antimicrobial drugs in hog feed is a factor promoting the development of antimicrobial drug-resistant bacteria. This study describes the extent to which antibiotics are used in hog production and how this changed between 2004 and 2009. This study also uses a sample-selection model to examine the impact that use has on the productivity of U.S. hog operations. Using hog producer data from 2004, the analysis did not find a relationship between productivity and sub-therapeutic antibiotics fed during finishing, but productivity was significantly improved when fed to nursery pigs. These results are being evaluated...
Tipo: Conference Paper or Presentation Palavras-chave: Antibiotics; Hogs; Sample selection; Farm Management; Production Economics.
Ano: 2011 URL: http://purl.umn.edu/103232
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Sub-therapeutic Antibiotics and Productivity in U.S. Hog Production AgEcon
McBride, William D.; Key, Nigel D.; Mathews, Kenneth H., Jr..
Antimicrobial drugs are fed to hogs at sub-therapeutic levels to prevent disease and promote growth. However, there is concern that the presence of antimicrobial drugs in hog feed is a factor promoting the development of antimicrobial drug-resistant bacteria. This study uses a sample-selection model to examine the impact that use has on the productivity of U.S. hog operations. The analysis did not find a relationship between productivity and sub-therapeutic antibiotics fed during finishing, but productivity was significantly improved when fed to nursery pigs. Restrictions on feeding antimicrobial drugs during the nursery phase would likely impose significant economic costs on U.S. hog producers.
Tipo: Conference Paper or Presentation Palavras-chave: Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/21148
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THE BEEF COW REPLACEMENT DECISION AgEcon
Mathews, Kenneth H., Jr.; Short, Sara D..
This analysis examines effects of several common assumptions on net present values (NPVs) of beef cows. While effects on NPVs vary over a price cycle or successive price cycles, several generalities manifest themselves. A cow is not likely to recover the lost revenue from not having just one calf. Incorporating genetic improvement into the herd increases the probability of an older cow being culled. Variable net replacement/culling rates make sense in the context of cattle inventory and price cycles because of the effects cyclical series of prices have on NPV.
Tipo: Journal Article Palavras-chave: Asset replacement; Cattle cycle; Cull; Net present value; Livestock Production/Industries.
Ano: 2001 URL: http://purl.umn.edu/14695
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The Diverse Structure and Organization of U.S. Beef Cow-Calf Farms AgEcon
McBride, William D.; Mathews, Kenneth H., Jr..
Beef cow-calf production in the United States is widespread, occurring in every State. Nearly 765,000 farms, about 35 percent of the 2.2 million farms in the United States, had a beef cow inventory in 2007. Most of these were small, part-time operations. About a third of farms that raise beef animals had a beef cow inventory of less than 10 cows, more than half had fewer than 20 cows, and nearly 80 percent had fewer than 50 cows. In this study, ERS uses data from USDA’s 2008 Agricultural Resource Management Survey for U.S. beef cow-calf operations to examine the structure, costs, and characteristics of beef cow-calf producers. Many small operations are “rural residence farms” that specialize in beef cow-calf production, but their income from off-farm...
Tipo: Report Palavras-chave: Beef cow-calf production; Farm income; Animal traceability; Agricultural Resource Management Survey (ARMS); National Animal Identification System (NAIS); Agribusiness; Agricultural and Food Policy; Farm Management; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/102764
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U.S. Beef Industry: Cattle Cycles, Price Spreads, and Packer Concentration AgEcon
Mathews, Kenneth H., Jr.; Hahn, William F.; Nelson, Kenneth E.; Duewer, Lawrence A.; Gustafson, Ronald A..
In early 1996, the peak in the current cycle of cattle inventories coincided with a long list of negative factors--negative returns at the farm and feedlot, record-high feed grain prices, a severe drought in 1995-96, widening farm-retail price spreads, a low farmers' share of the consumers' Choice beef dollar, and reports of high profits for beefpackers. This confluence created an atmosphere in which some producers and members of Congress questioned whether the cattle industry was adversely affected by high packer concentration and market power. In this report, we examine the cattle cycle of the 1990's to determine if there are differences from previous cattle cycles and, if so, how and why they are different. We found that values for many variables at the...
Tipo: Report Palavras-chave: Cattle cycles; Price spreads; Packer concentration; Cattle slaughter; Steer and heifer slaughter; Cow slaughter; Livestock Production/Industries.
Ano: 1999 URL: http://purl.umn.edu/33583
Registros recuperados: 20
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