The each group of animals should be treated with intragastric infusion(injection) of a dose of gastric lavage lotion in twice, and at the same time they can drink water freely. The water and fodder should be changed every day, and the environmental ventilation and sanitation should be ensured for them.
The every group respectively gets two lavages with relevant dose. They all drink freely. The water and fodder would be changed every day. Environmental ventilation and sanitation should be ensured for the animals.