Review Article

Recent Progress in Cryopreservation of Bovine Oocytes

Table 2

Supplementation effect of L-carnitine to IVM medium on the cryotolerance of bovine oocytes [84, 86].

L-CarnitineVitrification Nuclear maturationSurvivalCleavageBlastocyst yield

Chankitisakul et al. [84]
   −67%92%a84%a44%a
   +65%93%a84%a45%a
   −+81%b57%b20%b
   ++83%b63%b34%a

Phongnimitr et al. [86]
   −68%d100%78%c24%d
   +78%c100%76%c31%c
   −+86%67%d11%e
   ++88%69%d13%e

Superscripts a versus b, c versus d versus e in each column: .
Concentration of L-carnitine in the IVM medium: 0.6 mg/mL.