Table 2.

Analysis of WCR mortality fed various lengths of DvSSJ1 dsRNA.

Treatment description	Mortality (%)	95% Confidence limit for mortality	Fisher's test P value for mortality	Mean weight (mg) (95% confidence interval)	Weight range (mg)	P value for weight
Bioassay control diet	17.9	6.06–36.9	–	1.28 (0.972–1.58)	0.1–2.5	–
21 bp	31.0	15.3–50.8	0.1988	1.52 (1.19–1.85)	0.2–3.0	0.8561
40 bp	25.9	11.1–46.3	0.3457	0.890 (0.561–1.22)	0.1–2.6	0.0448*
60 bp	50.0	31.3–68.7	0.0101*	0.927 (0.547–1.31)	0.3–2.0	0.0778
80 bp	82.8	64.2–94.2	< 0.0001*	0.300 (-0.358–0.958)	0.1–0.5	0.0044*
100 bp	96.6	82.2–99.9	< 0.0001*	0.100	NA	–
150 bp	96.6	82.2–99.9	< 0.0001*	0.500	NA	–
210 bp	93.1	77.2–99.2	< 0.0001*	0.250 ± 0.212	0.1–0.4	–

A series of seven different lengths of DvSSJ1 dsRNA was incorporated into a standard artificial diet and WCR mortality was recorded as described in Method.

*A statistically significant difference (P value < 0.05) was observed.