Quick Answer
In CWD-positive areas, it's recommended to test at least 10-20% of harvested deer annually to track the disease's progression and identify potential hotspots. This can be achieved through a combination of random sampling and targeted testing in areas with known CWD presence.
Understanding CWD Surveillance
Effective CWD surveillance requires a robust testing program that can detect the disease in a representative sample of the deer population. In CWD-positive areas, the goal is to test at least 10-20% of harvested deer annually, with a focus on areas with known CWD presence. This can be achieved through a combination of random sampling and targeted testing. For example, in Wisconsin, the Department of Natural Resources recommends testing at least 15% of harvested deer in CWD-positive areas.
Targeted Testing Strategies
Targeted testing can be an effective way to identify areas with high CWD prevalence. This can involve testing deer in areas with known CWD presence, such as near infected farms or in areas with high deer density. For example, in Colorado, the CWD surveillance program targets areas with high deer density and known CWD presence, testing at least 20% of harvested deer in these areas. Targeted testing can help identify potential hotspots and inform management decisions.
Random Sampling Methods
Random sampling is another effective way to track CWD prevalence in a deer population. This can involve testing a random sample of deer from across the study area, with a focus on areas with no known CWD presence. For example, in Minnesota, the CWD surveillance program uses random sampling to test at least 10% of harvested deer across the state, with a focus on areas with no known CWD presence. Random sampling can help identify areas where CWD may be spreading and inform management decisions.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.