23.1.1 AnimalsandsamplecollectionTwenty-fiveadultfemaleguineapigs(Caviaporcellus)oftheHartleystrainwereusedat5monthsofage,withaninitialweightof400~700g.Theywerehoused4animalspercage,undercontrolledtemperatureat23℃±2℃,andfedcommercialfoodandtapwateradlibit (共 3773 字) [阅读本文] >>


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