Assessing impacts of animal health interventions on productivity
Tsetse control is often applied to an area which covers several herds. To carry out a trial using an uncontrolled area would be difficult because of the virtual impossibility of findings two areas identical in every respect. One solution (method 1) is to compare animal productivity before and after...
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
1994
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| Online Access: | https://hdl.handle.net/10568/29135 |
| _version_ | 1855515118940454912 |
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| author | Rowlands, G.J. |
| author_browse | Rowlands, G.J. |
| author_facet | Rowlands, G.J. |
| author_sort | Rowlands, G.J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Tsetse control is often applied to an area which covers several herds. To carry out a trial using an uncontrolled area would be difficult because of the virtual impossibility of findings two areas identical in every respect. One solution (method 1) is to compare animal productivity before and after an intervention has been applied, but this requires several years of data to be collected. An alternative method (method 2) is to determine the association to predict the potential outcome should an intervention be applied. A third solution (method 3) which has considerable statistical advantages over the first two, is to utilise herd-to-herd variations in the "primary impact" of the intervention, like on reduction in trypanosome prevalence, to investigate "secondary impacts" on productivity. This approach uses linear regression analysis with herd as the experimental unit, increase in animal productivity resulting from the intervention as the dependent variable and decrease in desease prevalence as the independent variable. |
| format | Journal Article |
| id | CGSpace29135 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1994 |
| publishDateRange | 1994 |
| publishDateSort | 1994 |
| record_format | dspace |
| spelling | CGSpace291352023-02-15T09:47:51Z Assessing impacts of animal health interventions on productivity Rowlands, G.J. cote d'ivoire animal health cattle productivity trypanosomiasis disease prevalence growth rate Tsetse control is often applied to an area which covers several herds. To carry out a trial using an uncontrolled area would be difficult because of the virtual impossibility of findings two areas identical in every respect. One solution (method 1) is to compare animal productivity before and after an intervention has been applied, but this requires several years of data to be collected. An alternative method (method 2) is to determine the association to predict the potential outcome should an intervention be applied. A third solution (method 3) which has considerable statistical advantages over the first two, is to utilise herd-to-herd variations in the "primary impact" of the intervention, like on reduction in trypanosome prevalence, to investigate "secondary impacts" on productivity. This approach uses linear regression analysis with herd as the experimental unit, increase in animal productivity resulting from the intervention as the dependent variable and decrease in desease prevalence as the independent variable. 1994 2013-06-11T09:22:33Z 2013-06-11T09:22:33Z Journal Article https://hdl.handle.net/10568/29135 en Limited Access Kenya Veterinarian;18(2): 353-355 |
| spellingShingle | cote d'ivoire animal health cattle productivity trypanosomiasis disease prevalence growth rate Rowlands, G.J. Assessing impacts of animal health interventions on productivity |
| title | Assessing impacts of animal health interventions on productivity |
| title_full | Assessing impacts of animal health interventions on productivity |
| title_fullStr | Assessing impacts of animal health interventions on productivity |
| title_full_unstemmed | Assessing impacts of animal health interventions on productivity |
| title_short | Assessing impacts of animal health interventions on productivity |
| title_sort | assessing impacts of animal health interventions on productivity |
| topic | cote d'ivoire animal health cattle productivity trypanosomiasis disease prevalence growth rate |
| url | https://hdl.handle.net/10568/29135 |
| work_keys_str_mv | AT rowlandsgj assessingimpactsofanimalhealthinterventionsonproductivity |