| − | Rats arrive (2026-5-26), n= 12 adult male Sprague Dawley rats (Charles River CD, d.o.b XXXXX), individually housed in BRF 169. | + | Rats arrive (2026-5-26), n=16 adult male Sprague Dawley rats (Charles River CD, d.o.b 2026-3-30), individually housed in BRF 169. |