I'm searching for the rats, Sprague dawley to do research for my final year project. I need about 65 ekor, 7 weeks old, definitely all male. And i need it urgently. If anyone is selling it or anyone has any pathway of getting it, please inform me. I would appreciate it from the bottom of my heart. Thank you very much. Merci beaucoup. 谢谢。Terima Kasih.