Test animals. Adult male and fe- male rats shall be used for testing. The rats shall be 7 to 9 weeks old and their weight range should be comparable from group to group. The animals shall be purchased from a reputable dealer and shall be permanently identified upon arrival. The animals shall be se- lected at random for the testing groups, and any animal showing signs of ill health shall not be used.
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Test animals. Adult male and fe- male rats shall be used for testing. The rats shall be 7 to 9 weeks old and their weight range should be comparable from group to group. The animals shall be purchased from a reputable dealer and shall be permanently identified upon arrival. The animals shall be se- lected at random for the testing groups, and any animal showing signs of ill health shall not be used.. § 795.232
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Samples: www.govinfo.gov
