Table 1. Mean concentration level of tetracycline residues in retailed pork meat and liver in Davao city public markets

Swine parts	MRL1)in ng/g	Market A		Market B		Market C		Average		p-value
		n	Tetracyclineresidues	n	Tetracyclineresidues	n	Tetracyclineresidues	N	Tetracyclineresidues
Meat	200	36	63.35±14.022)[59.92, 66.77]3)	14	71.50±8.81[69.34, 73.65]	24	66.52±11.05[63.82, 69.21]	74	67.12±11.29[64.36, 69.87]	0.0084)
Liver	600	34	78.34±18.02[73.74, 82.93]	14	76.52±13.99[72.94, 80.09]	24	67.17±17.27[62.76, 71.57]	72	74.01±16.43[69.81, 78.20]	0.008

MRL, maximum residue limit.
Mean±standard deviation.
Confidence interval [CI] at 95%.
Significant difference in total tetracycline resides between liver and meat at p<0.05.