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Table 8 Metabolic total heat production [kJ/(d·BW0.75)] during daytime of lactating sows fed high crude protein (HCP; 192.4 g/kg crude protein) and low crude protein (LCP; 140.0 g/kg crude protein) diets and exposed to thermal neutral and heat stress conditionsa

From: Effect of dietary near ideal amino acid profile on heat production of lactating sows exposed to thermal neutral and heat stress conditions

Item  Thermal neutral Heat stress
HCP LCP SEMb P-value HCP LCP SEMb P-value
Day 4
 07:00c 623.4 610.0 50.2 0.840 700.0 643.1 47.3 0.380
 08:00 635.1 637.2 52.3 0.975 669.9 677.4 47.3 0.905
 09:00 578.2 576.1 50.2 0.976 675.7 715.9 47.3 0.534
 10:00 606.3 583.2 50.2 0.723 656.9 642.7 47.3 0.824
 11:00 637.2 610.0 50.2 0.677 564.8 635.5 51.5 0.296
 13:00 677.4 703.7 50.2 0.689 671.5 630.1 47.3 0.521
 15:00 654.4 627.2 50.2 0.677 700.0 613.4 51.9 0.201
 19:00 606.3 607.1 50.2 0.990 654.0 589.9 52.3 0.344
Day 8
 07:00c 672.4 605.8 60.7 0.419 690.8 569.0 44.8 0.061
 08:00 748.9 726.3 60.7 0.784 743.9 679.5 44.8 0.317
 09:00 683.7 613.0 60.7 0.389 715.9 667.8 44.8 0.454
 10:00 733.9 668.2 60.7 0.422 673.6 612.5 44.8 0.345
 11:00 721.7 699.6 60.7 0.785 692.5 662.7 44.8 0.648
 13:00 754.8 724.7 60.7 0.716 706.3 603.3 44.8 0.113
 15:00 792.4 742.7 60.7 0.544 779.5 658.1 44.8 0.062
 19:00 728.9 682.4 60.7 0.570 655.2 711.3 44.8 0.381
Day 14
 07:00c 815.0 658.6 56.5 0.042 748.5 695.8 50.6 0.456
 08:00 755.2 700.4 56.5 0.468 760.7 777.8 50.6 0.810
 09:00 735.5 659.0 56.5 0.311 737.2 664.4 50.6 0.307
 10:00 751.4 651.9 56.5 0.189 742.2 614.2 50.6 0.076
 11:00 739.7 694.1 56.5 0.546 758.1 701.2 50.6 0.422
 13:00 790.4 670.3 56.5 0.116 592.5 621.7 50.6 0.692
 15:00 860.6 793.3 56.5 0.375 725.9 705.8 50.6 0.780
 19:00 789.1 664.0 56.5 0.101 699.1 670.7 50.6 0.688
Day 18
 07:00c 742.7 668.6 71.1 0.430 736.4 619.7 52.3 0.118
 08:00 802.9 694.1 71.1 0.246 765.3 552.3 52.3 0.005
 09:00 672.4 630.9 71.1 0.659 657.7 527.2 52.3 0.080
 10:00 638.5 551.0 71.1 0.350 649.4 454.4 52.3 0.010
 11:00 678.6 634.7 71.1 0.640 724.7 501.2 52.3 0.004
 13:00 734.3 659.0 71.1 0.421 849.8 554.8 56.9 0.001
 15:00 803.3 723.0 71.1 0.391 785.3 531.4 56.9 0.006
 19:00 725.1 623.8 71.1 0.279 686.2 584.1 56.9 0.227
  1. aData are least squares means
  2. bMaximum value of the standard error of the means
  3. cTotal heat production before first morning meal