Table 2.

The effect of different electroporation parameters on viability of sheep testicular cells 48 hours after transfection

	Single burst		Double burst
Groups	DMSO negative	DMSO positive	DMSO negative	DMSO positive
280 V/10 milliseconds	74.48 ± 1.4A, a	63.14 ± 0.4B, a	74.83 ± 0.7A, a	65.3 ± 2.8B, a
320 V/8 milliseconds	78.57 ± 1.5A, b	70.18 ± 1.4B, b	38.23 ± 0.6C, b	30.76 ± 2.3D, b
350 V/5 milliseconds	65.5 ± 1.3A, c	49.8 ± 1.1B, c	34.7 ± 1.7C, c	20 ± 2.3D, c

DMSO, Dimethyl sulfoxide, ^A-D; Numbers with different upper case superscript letters in the same row differ significantly, and ^a-d; Numbers with different lower case superscript letters in the same column differ significantly (P<0.05).