A Quantitative Study on the Trachea of the Red Sokoto (Maradi) Goat (Capra hircus)

Table 2

The diameter and thickness of the trachea wall of the Red Sokoto goat.

Length (mm)	Animal number (𝑛=9)									Mean ± SEM	P value
	1	2	3	4	5	6	7	8	9
OVD	17	16	16	17	15	17	14	17.5	15	16.06 ± 0.39	0.05
OTD	13.5	17	12.7	13	13	16	14	14	13	14.02 ± 0.5
IVD	15	13	13.5	14	13	15	12	11.5	12.5	13.28 ± 0.41	0.01
ITD	10	13	11	11	11	14	12	11.5	11	11.61 ± 0.41
DWT	1	2	1	3.5	1	1	1	1	1	1.39 ± 0.29	ns
VWT	2	1	2	2	3	2	2	2	2	2.0 ± 0.17
LWT	1	1.5	3	2	2	1.5	1	1.5	1	1.61 ± 0.22	ns

OVD: outer vertical diameter, OTD: outer transverse diameter, IVD: inner vertical diameter, ITD: inner transverse diameter, DWT: dorsal wall thickness, VWT: ventral wall thickness, LWT: lateral wall thickness, CSR: cross-sectional area, n: sample size, SEM: standard error of mean, and ns: not significant.