When does the Border Collie get rid of insects? The first deworming is carried out when the animal is about 20 days old and healthy. Deworming every two to four weeks before six months and every three months from six months to one year of age; Every six months after the first year of grazing, but note that deworming and vaccination should be more than one week apart. About 20 days after birth, the Border Collie can start to do the first deworming under the condition of ensuring good health. Next, deworming is performed every two to four weeks at the age of six months. It should be dewormed every three months from six months to one year of age, and every six months after one year of age. If usually found edge grazing restless, hair dander or black small particles, has been constantly licking or scratching the same place, or even shortness of breath, vomiting and diarrhea, wasting, these symptoms show that the edge grazing body is likely to have parasites, to be timely for the edge grazing insect repellent. If the animal is already suffering from severe parasites and is not treated in time, it can lead to death. It is best for parents to take to the hospital for veterinary treatment, so as not to delay the best treatment period. Note that if the animal is purchased or adopted, it cannot be dewormed immediately after it is brought home. Because at this time the edge of the herd does not adapt to the new environment, rushed deworming is easy to make it nervous and even sick. In addition, it is best to have a period of time between deworming and vaccine, not at the same time, otherwise there may be mutual influence, resulting in vaccine failure. Under normal circumstances, vaccination should be first followed by deworming.