关键词: X 线检查, 犬, 髋关节发育情况

Abstract: Objective Guide dogs are working dogs that help visually impaired persons travel safely. Method This study collected X-ray films of 160 dogs( male Labradors 86, female Labradors 52; male golden 14,female golden 8) from China Guide Dog Training Centre during the year 2018—2021. The developmental status of hip joint was analyzed by classification of hip dysplasia in dogs of different breeds and genders. Result The hip joint of 130 dogs (81. 25%) developed very well, while 30 dogs (18. 75%) had different degrees of dysplasia. We used Chi-squared Test for data analysis. There was a significant difference between Labrador retrievers and golden retrievers ( χ2=21. 45,P<0. 01) , while the difference between male and female dogs was not significant ( χ2= 0. 09,P > 0. 05). For the 30 dogs with hip dysplasia, there was no significant difference between 2 breeds ( χ2= 1. 53,P > 0. 05). Conclusion X-ray examination can effectively screen the development of hip joint in dogs aged 12-14 months.

Key words: X-ray examination, dogs, development of hip joint