The cost and management of different types of clinical mastitis in dairy cows estimated by dynamic programming
Autor: | Cha, E., Bar, D., Hertl, J. A., Tauer, L. W., Bennett, G., González, R. N., Schukken, Y. H., Welcome, F. L., Gröhn, Y. T., LS Theoretische Epidemiologie |
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Rok vydání: | 2010 |
Předmět: |
Cost estimate
Total cost Mastitis Dynamic programming Toxicology Gram-positive Pregnancy medicine Genetics Animals Lactation Treatment costs Mastitis Bovine Gram-positive bacterial infections Gram-Positive Bacterial Infections Mathematics Gram-negative bacterial infections business.industry medicine.disease Optimal management Gram-negative Markov Chains Biotechnology Anti-Bacterial Agents Dairying Milk Models Economic Costs and Cost Analysis Animal Science and Zoology Cattle Female business Gram-Negative Bacterial Infections Food Science |
Zdroj: | Journal of Dairy Science, 94(9), 4476. Elsevier Limited |
ISSN: | 1525-3198 0022-0302 |
Popis: | The objective of this study was to estimate the cost of 3 different types of clinical mastitis (CM) (caused by gram-positive bacteria, gram-negative bacteria, and other organisms) at the individual cow level and thereby identify the economically optimal management decision for each type of mastitis. We made modifications to an existing dynamic optimization and simulation model, studying the effects of various factors (incidence of CM, milk loss, pregnancy rate, and treatment cost) on the cost of different types of CM. The average costs per case (US$) of gram-positive, gram-negative, and other CM were $133.73, $211.03, and $95.31, respectively. This model provided a more informed decision-making process in CM management for optimal economic profitability and determined that 93.1% of gram-positive CM cases, 93.1% of gram-negative CM cases, and 94.6% of other CM cases should be treated. The main contributor to the total cost per case was treatment cost for gram-positive CM (51.5% of the total cost per case), milk loss for gram-negative CM (72.4%), and treatment cost for other CM (49.2%). The model affords versatility as it allows for parameters such as production costs, economic values, and disease frequencies to be altered. Therefore, cost estimates are the direct outcome of the farm-specific parameters entered into the model. Thus, this model can provide farmers economically optimal guidelines specific to their individual cows suffering from different types of CM. |
Databáze: | OpenAIRE |
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