TABLE 1.

Combination ketamine and xylazine (KX) anesthesia dosing recommendations for young and old C57BL6 mice prior to parabiosis surgery.

Weight (g)	Vol (ul) of KX 100mg/10mg//kg	Vol (ul) of KX 100mg/10mg//kg	Vol (ul) of KX 100mg/10mg//kg
	Y-Female	O-Female	Y- and O-Male
15–20	150	200	150
20–25	200	200	200
25–30	250	250	250
30–35	300	300	300
35–40	325	325	350
40–45	350	350	350