Other breeds, such as the German Shepherd and Doberman Pinscher, also have disk disease but with a lower incidence.
有些品种的犬，如德国牧羊犬，杜宾，尽管也有发生椎间盘疾病，但发病率很低。
The researchers said they found that the relative risk of being bitten by a German shepherd or a Doberman was about five times higher than for a Labrador retriever or a mixed breed.
报告还说，狗在整个演化过程中始终是群居动物，狗群中存在特有的等级统治秩序。
The researchers said they found that the relative risk of being bitten by a German shepherd or a Doberman was about five times higher than for a Labrador retriever or a mixed breed.
报告还说，狗在整个演化过程中始终是群居动物，狗群中存在特有的等级统治秩序。
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