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Levels of free amino acids in iAGP-3 and wild-type embryos during maturation. Data points are means from four replicates ± se. Significantly higher levels according to t test are as follows: a, P < 0.05; b, P < 0.01; c, P < 0.001. Significantly lower levels according to t test are as follows: x, P < 0.05; y, P < 0.01; z, P < 0.001.
