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BAX, BCL-2 and beta tubulin proteins. A: The expression of BCL-2 (anti-apoptotic), BAX (pro-apoptotic) and β-Tubulin proteins among the bulls. B: The expression of BCL-2 and BAX proteins using the same testis sample as positive control. M: Marker, T: Testis. Ten bulls were presented with their numbers from low fertility to the high fertility bulls 1 to 10, respectively.
