Table 2.

Antimicrobial activity of AMPs and antibiotics towards Gram-negative and Gram-positive bacteria

Microorganism	MIC (μg/ml)
	Cecropin B	Moricin	Penicillin	Streptomycion sulfate
Gram-negative bacteria
E. coli	16	32	32	4
S. chloleraesuis	8	32	0.5	> 32
A. pleuropneumoniae	8	8	0.5	16
H. parasuis	2	128	0.5	16
B. bronchiseptica	0.5	8	> 32	> 32
P. multocida	8	128	2	2
Gram-positive bacteria
S. aureus	> 128	16	< 0.0625	4
S. suis	> 128	16	< 0.0625	16