Table 4.

Stability of QR in white broiler plasma at −20°C for 7 days and 4°C for 24 h assay.

Conc. (ng/mL)	Remaining (%)
	In plasma stored at −20°C for 7 days	In prepared plasma sample stored at 4°C for 24h
10	96.64 ± 6.62	92.76 ± 2.94
100	103.28 ± 8.97	97.25 ± 5.63
500	93.52 ± 1.78	99.98 ± 0.45

Each value represents the mean ± SD (n = 6).