Figure 4.

On-station trial for the evaluation of in-vivo anthelmintic properties of plants. Usage of more than two plant species implies a more realistic scenario albeit bioactivity of a specific plant should be considered cautiously. (a–d) represent the first, second, third and fourth experimental days. Containers in which the plants are offered must be equidistant and changed on a daily basis to avoid associate learning. Some researchers choose to hang experimental plants to simulate browsing ingestive behaviors. Such considerations should be in function of the facilities where trials are conducted.