Table 7 Length and diameter of intestinal segments of Pharaoh and Japanese quails slaughtered at 6 weeks of age.

Trait	Genotype		Sex		SEM	P value
Trait	Pharaoh quail	Japanese quail	Male	Female	SEM	G	S	S × G
Length (cm)
Total intestine	87.56	82.28	83.91	85.92	0.996	0.267	0.313	0.296
Duodenum	12.49^a	9.31^b	10.91	10.88	0.353	< 0.001	0.953	0.271
Jejunum + Ileum	49.07	49.97	49.02	50.02	0.739	0.565	0.523	0.673
Caeca	18.38^a	17.07^b	17.33	18.12	0.273	0.012	0.115	0.098
Colon	7.62^a	5.93^b	6.65	6.90	0.172	< 0.001	0.246	0.167
Diameter (mm)
Duodenum	5.48^a	4.93^b	4.80	5.61*	0.112	0.002	< 0.001	0.702
Jejunum + Ileum	3.97	4.03	3.95	4.05	0.090	0.719	0.576	0.244
Caeca	3.53^a	2.88^b	2.99	3.42*	0.091	< 0.001	0.005	0.333
Colon	3.48^a	2.73^b	2.95	3.26	0.102	< 0.001	0.064	0.941

S sex; G genotype; S × G interaction between genotype and sex; SEM standard error of the mean. n = 20 for genotype or sex, 10 males and 10 females within a given genotype.
^a,bAre the means with different superscripts are statistically different between Pharaoh and Japanese quail P value < 0.05; *statistical differences between males and females P value < 0.05.

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