Cell viability and DNA fragmentation from prepubertal cats after warming, 24 h, or 5 days of in vitro culture.

(A) cell viability, (B) cells with fragmented DNA. Data are expressed as mean ± SE (n = 5 animals per treatment). Black bars indicate fresh tissue and grey bars indicate vitrified tissue. Different letters above bars indicate significant statistical differences between treatments (P < 0.05).