Table 1. Litter size and litter weight at birth, individual birth weight of progeny, and cumulative body weight (BW) and back fat (BF) gain from insemination until 109 dpc of sows fed isoenergetic diets with low protein∶high carbohydrate (6.5% crude protein, LP), adequate protein∶carbohydrate (12.1% crude protein, AP), and high protein∶low carbohydrate (30% crude protein, HP) ratios throughout pregnancy (EXP1) (modified after [4]).

	Diet1						P value2
	LP	SE	AP	SE	HP	SE	D
Litter size	12.6	0.6	11.6	0.6	11.1	0.7	0.283
Litter weight, kg	14.67	0.63	15.96	0.59	13.77	0.71	0.066
Birth weight, kg	1.19a	0.04	1.41b	0.04	1.21a	0.04	<0.001
BW gain, kg	42.1a	1.2	68.3b	1.2	63.1c	1.5	0.049
BF gain, mm	5.1a	0.4	5.0a	0.4	3.8b	0.4	0.050

^a–cWithin a row, values not sharing a common superscript differ significantly (P<0.05) according to Tukey post hoc test.

¹Values are least squares means ± SE per diet over 7 replicates.

²ANOVA PROC GLM, D = diet. Effect of replicate and interaction of diet×replicate were not significant.