Table 7.

Preference of weaned pigs fed paired cold-pelleted diets containing SBM, B. napus CM, or B. juncea CM,* experiment 2

	Paired diets, test diet [reference diet]‡				P-value$
Feed preference,† %	1. B. napus CM [SBM]	2. B. juncea CM [SBM]	3. B. juncea CM [B. napus CM]	SEM||	Among pairs	Pair 1	Pair 2	Pair 3
Period 1
Day 1	35.0	22.7	33.5	15.2	0.679	0.178	0.016	0.201
Day 2	29.9	10.5	16.4	10.8	0.200	0.022	< 0.001	0.007
Day 3	36.0	14.6	19.6	10.5	0.117	0.101	< 0.001	0.003
Day 4	29.4	9.6	23.9	10.1	0.144	0.007	< 0.001	0.024
Days 1–4	32.6ax	14.3bxy	23.4ab	5.5	0.005	< 0.001	< 0.001	< 0.001
Period 2
Day 1	11.3	23.9	18.6	10.6	0.503	< 0.001	0.020	0.002
Day 2	14.3	12.1	21.5	9.7	0.597	< 0.001	< 0.001	0.007
Day 3	11.2	6.2	14.9	5.9	0.354	< 0.001	< 0.001	< 0.001
Day 4	15.5	4.9	18.6	6.6	0.108	< 0.001	< 0.001	< 0.001
Days 1–4	13.1y	11.8y	18.4	3.9	0.204	< 0.001	< 0.001	< 0.001
Period 3
Day 1	11.1	24.3	21.7	9.5	0.347	< 0.001	0.004	0.009
Day 2	17.5	20.4	9.6	6.8	0.276	< 0.001	0.001	< 0.001
Day 3	7.0	19.0	19.0	7.7	0.211	< 0.001	0.001	< 0.001
Day 4	11.4ab	22.2a	5.5b	6.0	0.029	< 0.001	0.001	< 0.001
Days 1–4	11.8by	21.5ax	14.0ab	3.5	0.016	< 0.001	< 0.001	< 0.001
Overall
Day 1	19.1	23.6	24.6	7.0	0.706	< 0.001	< 0.001	< 0.001
Day 2	20.6	14.3	15.9	5.3	0.478	< 0.001	< 0.001	< 0.001
Day 3	18.1	13.3	17.8	5.0	0.556	< 0.001	< 0.001	< 0.001
Day 4	18.7	12.2	16.0	4.7	0.383	< 0.001	< 0.001	< 0.001
Days 1–4	19.1	15.8	18.6	2.6	0.413	< 0.001	< 0.001	< 0.001

^a,bWithin a row, means without a common superscript differ (P < 0.05).

^x,yWithin a column, means for days 1–4 of each period without a common superscript differ (P < 0.05).

*Diets were offered in a paired choice as pellets in two feeders with four feeding spaces each. Each pig had access to one feeding space if all pigs were eating simultaneously.

^†Feed preference of a test diet was expressed as percentage of sum of feed intake of test diet and its reference diet.

^‡A value < 50 means that pigs preferred the reference diet. The lower the value, the stronger the preference for the reference diet over the test diet. Preference of reference diet (= 100 – Feed preference of test diet) was not shown.

^||Least-squares means based on 12 pen observations of 4 pigs per paired comparison.

^$For feed preference, effects of paired diet comparison and day were not observed (P = 0.413), but an effect of period and interaction between paired diet comparison and period were observed (P < 0.01).