Induction of mycoplasmal pneumonia in experimentally infected pigs by means of different inoculation routes

Table 3 Proportion (%) of M. hyopneumoniae rt-PCR positive animals in laryngeal swabs through the study, lung tissue and BALF and Ct values (mean ± SD) from Control, ET, IN and AE groups

Groups	Laryngeal swabs										Lung tissue		BALF
	−1 dpi		7 dpi		14 dpi		21 dpi		28 dpi		Lung tissue		BALF
	Prop. (%)	Ct	Prop. (%)	Ct*	Prop. (%)	Ct*	Prop. (%)	Ct*	Prop. (%)	Ct*	Prop. (%)	Ct*	Prop. (%)	Ct*
Control	0/6 (0.0)^a	NA	0/6 (0.0)^a	NA	0/6 (0.0)^a	NA	0/6 (0.0)^b	NA	0/6 (0.0)^b	NA	0/6 (0.0)^b	NA	0/3 (0.0)^b	NA
ET	0/8 (0.0)^a	NA	2/8 (25.0)^a	38.8 ± 0.4	3/8 (37.5)^a	31.8 ± 2.6	5/8 (62.5)^a	34.4 ± 1.6^a	5/8 (62.5)^a	33.6 ± 2.8^a	7/8 (87.5)^a	26.8 ± 0.9^a	3/3 (100)^a	24.1 ± 1.0^a
IN	0/8 (0.0)^a	NA	0/8 (0.0)^a	NA	0/8 (0.0)^a	NA	2/8 (25.0)^ab	33.1 ± 0.8^a	6/8 (75.0)^a	35.3 ± 3.2^a	5/8 (62.5)^ab	33.5 ± 6.1^b	3/3 (100)^a	22.9 ± 2.2^a
AE	0/8 (0.0)^a	NA	0/8 (0.0)^a	NA	0/8 (0.0)^a	NA	3/8 (37.5)^ab	35.4 ± 4.1^a	3/8 (37.5)^ab	33.9 ± 5.0^a	3/8 (37.5)^b	28.5 ± 7.7^a	3/3 (100)^a	26.2 ± 1.9^a

Different superscripts within a column indicate significant differences between groups (p < 0.05).
Prop proportion, NA non-applicable.
* Mean Ct value has been calculated considering only those rt-PCR positive animals.

ISSN: 1297-9716