Field efficacy of Porcilis® PCV M Hyo versus a licensed commercially available vaccine and placebo in the prevention of PRDC in pigs on a French farm: a randomized controlled trial

Table 3 Parameters measured at slaughterhouse, for a subset of each treatment group

	Number of lung checks	Average lung score (on 55)	Frequency of pneumonic lungs (%)	Age at slaughter (d)	Net carcass weight (kg)	Quality premium (€ cent per kg)	Income per pig^a (€/head)
Group CTL	69	5.9^a	82.6^a	187.1	90.6	13.5	139.6
Group PCVM	55	3.1^b	65.5^b	184.5	91.6	14.1	141.6
Group ICIM	55	6.3^a	85.5^a	185.6	91.0	12.3	139.0
p value	NC	0.007	0.021	0.162	0.246	0.071	0.082
Test used	NA	Kruskal-Wallis	Pearson Chi-2	Kruskal-Wallis	Anova	Anova	Anova

Values with different letters within the same column present a statistically significant difference
^aVaccination cost included
NC not calculated
NA not applicable

ISSN: 2055-5660