Rosser E J
Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Veterinary Medical Center, Michigan State University, East Lansing 48824-1314.
J Am Vet Med Assoc. 1993 Jul 15;203(2):259-62.
The diagnosis of food allergy was confirmed in 51 dogs while the responsiveness to a 60-day home-cooked restricted dietary trial (elimination-diet trial) was evaluated. The primary clinical sign of allergy detected and evaluated in all dogs was persistent and nonseasonally pruritic skin disease. The duration of time between starting the elimination-diet trial and remission of clinical signs was recorded. Dogs were then reexposed to diets that had been fed before testing, and the duration of time before pruritus recurred was recorded. The elapsed time during which dogs were being fed an elimination diet before remission of clinical signs was 1 to 3 weeks in 13 dogs, 4 to 6 weeks in 25 dogs, 7 to 8 weeks in 10 dogs, and 9 to 10 weeks in 3 dogs. Findings indicated that the recommendation of a 3-week elimination-diet trial for diagnosis of food allergy was adequate for only 25% of the dogs. It is recommended that test diets be fed for at least 10 weeks before a food allergy is ruled out.
51只犬的食物过敏诊断得到确认，同时评估了它们对为期60天的家庭自制限制饮食试验（排除饮食试验）的反应。在所有犬中检测和评估的过敏主要临床症状是持续性、非季节性瘙痒性皮肤病。记录开始排除饮食试验至临床症状缓解之间的时间。然后让犬重新接触试验前喂食的饮食，并记录瘙痒复发前的时间。在临床症状缓解前，13只犬食用排除饮食的时间为1至3周，25只犬为4至6周，10只犬为7至8周，3只犬为9至10周。结果表明，为诊断食物过敏而进行3周排除饮食试验的建议仅适用于25%的犬。建议在排除食物过敏之前，试验饮食至少喂食10周。
