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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...
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Crop and livestock production processes are typically dynamic and involve growing biological assets which are eventually marketed. This study presents a production model of biological growth based on a differential equation specification. Economic implications for optimal input use and optimal...
Persistent link: https://www.econbiz.de/10005154925