Skip to main content

View full-text article in PMC

. 2014 Apr 24;9(4):e95932. doi: 10.1371/journal.pone.0095932

Table 3. Muscle fiber cross-sectional area (CSA) and density of the pectoralis major muscle on the different quail lines at 42 and 75 d post-hatch.

Muscle region	Superficial region		SEM	P-value	Deep region		SEM	P-value
Quail line	LW line	RBC line			LW line	RBC line
Muscle fiber CSA (µm²) at 42 d post-hatch
Mean	458^b	661^a	37.2	0.003	423^b	561^a	36.1	0.019
Type IIA fiber	289^b	427^a	23.8	0.002	337^b	441^a	33.0	0.032
Type IIB fiber	881^b	1625^a	21.7	<0.001	1325^b	1745^a	87.6	0.010
Muscle fiber density (number/mm²) at 42 d post-hatch
Mean	2283^a	1518^b	141	0.005	2452^a	1809^b	164	0.027
Type IIA fiber	1648^a	1225^b	117	0.038	2235^a	1665^b	172	0.046
Type IIB fiber	636^a	293^b	41.6	<0.001	217	165	31.8	0.258
Muscle fiber CSA (µm²) at 75 d post-hatch
Mean	740	719	31.7	0.677	650	554	35.3	0.112
Type IIA fiber	418	459	21.5	0.253	525	454	38.5	0.256
Type IIB fiber	1578	1799	90.7	0.111	1818	1847	114	0.856
Muscle fiber density (number/mm²) at 75 d post-hatch
Mean	1357	1408	65.4	0.583	1563	1818	99.6	0.098
Type IIA fiber	974	1138	57.6	0.100	1408^b	1685^a	84.7	0.045
Type IIB fiber	383^a	270^b	24.7	0.018	155	133	22.0	0.475

^a–b

Different superscripts in the each muscle region represent significant differences (P<0.05).

Abbreviations: LW, low weight; RBC, random bred control.