求翻译：犬轮状病毒感染是由犬轮状病毒引起的，主要侵害新生幼犬，是一种以腹泻为特征的机型接触性传染病。传染源主要是病犬和隐性带毒状。人工感染新生幼犬，20-24小时后发生腹泻，并可持续6-7天。病犬排黄绿色稀便，夹杂有中等量粘液，严重病例粪便中混有少量血液。病犬被毛粗乱。肛门周围皮肤被粪便污染。轻度脱水。与其他病毒性疾病不同的是病犬自始至终精神，食欲正常，可作为临床鉴别的参考。是什么意思？

Rotavirus infection in dogs is caused by rotavirus in dogs, mainly against the newborn pups, is a contagious disease characterized by diarrhea models. Infection mainly disease in dogs, and hidden the poison. Artificial infection of newborn pups, diarrhea occurs after 20-24 hours and sustainable 6-7. Row of yellow-greenish diarrhea in dogs, inclusions have a medium amount of mucus, serious cases are mixed with a small amount of blood in the stool. Canine coat is rough. Perianal skin contaminated by feces. Mild dehydration. Unlike other viral disease is a disease of dogs throughout the spirit, appetite is normal, as a clinical reference for identification.