Table 7.

Effects of strain (Cobb or Ross), sex (Male or Female) and age on blood mineral composition of broiler chickens fed a nutritionally adequate corn/soy-based diet.

Strain	Sex	Age	vGlu	iGlu	TCO2	HCT	MDA	H	L	H:L
			(mg/dL)	(mmol/L)		(%)	(μM)
Cobb			235	240	24.9	20.1	0.84	2175	8743	0.25
Ross			239	241	24.7	19.8	0.78	2421	9583	0.25
P <			0.543	0.614	0.164	0.410	0.047	0.10	0.02	0.918
	Male	239	243	25.1	19.5	0.81	2180	8711	0.25
	Female	234	237	24.4	20.3	0.81	2416	9615	0.25
	P <		0.033	0.008	0.006	0.052	0.883	0.11	0.010	0.910
		14 d	235ab	243	23.5	18.9	1.14	1978b	6924d	0.28ab
		21 d	240ab	239	24.5	19.0	1.12	2912a	9165c	0.32a
		28 d	242a	244	25.1	20.5	0.63	2777a	10720b	0.26bc
		35 d	238ab	240	26.3	21.6	0.48	1182c	6388d	0.15d
		42 d	231b	235	24.6	19.7	0.69	2640a	12620a	0.21c
		P <	0.039	0.082	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
		Linear P <	0.248	0.042	<0.001	0.005	<0.001	0.412	<0.001	<0.001
		Quadratic P <	0.003	0.252	<0.001	0.0121	<0.001	0.629	0.192	0.847
Model Pooled SEM1			6	5	0.6	0.9	0.07	332	774	0.03
Interaction Terms			(Probability > F)
Strain∗Age			0.050	0.074	0.319	0.089	<0.001	0.215	0.550	0.391
Sex∗Age			0.314	0.323	0.024	0.102	0.776	0.361	0.582	0.641
Strain∗Sex			0.134	0.147	0.885	<0.001	0.198	0.332	0.843	0.654
Strain∗Age∗Sex			0.104	0.104	0.335	0.951	0.206	0.884	0.407	0.615

^ab Means within a column of 3 or more independent variables lacking a common superscript differ significantly (P < 0.05).

¹SEM = Standard error of mean, main effect means of strain and sex calculated using n = 200, main effect means of age calculated using n = 80.