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. 2020 Jan 20;98(3):skaa021. doi: 10.1093/jas/skaa021

Table 2.

Effect of feed form (meal or pellets) by delivery (dry, wet/dry, or liquid) interaction on the body weight, average daily gain, average daily feed intake, feed conversion efficiency, and carcass characteristics of grow-finisher pigs (N = 12 pens/treatment)1

Meal Pellet P-value
Form Delivery Dry Wet/dry Liquid Dry Wet/dry Liquid SEM Form × delivery Form Delivery
BW, kg2
 Day 1 32.9 32.8 32.4 32.7 32.4 33.2 0.48 0.78 0.10 0.80 0.67
 Day 14 46.0 46.9 47.0 46.4 46.8 48.1 0.78 0.41 0.48 0.15
 Day 37 69.7c 71.0a,b,c 74.0a,b 70.8b,c 72.3a,b,c 74.6a 0.78 0.001 0.11 0.001
 Day 55 88.3c 91.0b,c 96.6a 91.0b,c 93.3a,b 96.2a 0.78 0.001 0.01 0.001
 Day 62 95.7c 98.1b,c 105.1a 98.8b,c 101.5a,b 104.7a 0.78 0.001 0.001 0.001
ADG, g/d2
 Day 1 to 14 889B 943A,B 955A,B 901B 939A,B 1,033A 39.2 0.09 0.34 0.03
 Day 15 to 37 1,027d 1,047c,d 1,172a 1,065c,d 1,105b,c 1,151a,b 39.2 0.03 0.41 0.01
 Day 38 to 55 1,026b 1,109a,b 1,249a 1,130a,b 1,170a,b 1,204a,b 39.2 0.001 0.19 0.001
 Day 56 to 62 1,289a,b 1,189b 1,472a 1,312a,b 1,412a 1,448a 39.2 0.001 0.01 0.001
 Overall 1,057C 1,072C 1,212A 1,102B,C 1,156A,B 1,209A 22.6 0.07 0.01 0.001
ADFI, g/d2
 Day 1 to 14 1,838b 1,942a,b 1,946a,b 1,706b 1,848a,b 2,116a 55.2 0.001 0.67 0.001
 Day 15 to 37 2,325b 2,394b 2,719a 2,177b 2,349b 2,786a 55.2 0.001 0.35 0.001
 Day 38 to 55 2,549c 2,749b,c 3,225a 2,600b,c 2,845b 3,150a 55.2 0.001 0.59 0.001
 Day 56 to 62 2,639c 2,787b,c 3,509a 2,795b,c 2,950b 3,501a 55.2 0.001 0.02 0.001
 Overall 2,338 2,468 2,850 2,320 2,498 2,888 38.9 0.72 0.59 0.001
G:F, g/g2
 Day 1 to 14 0.476 0.481 0.483 0.523 0.500 0.481 0.01166 0.01 0.01 0.23
 Day 15 to 37 0.436a,b 0.433a,b 0.424a,b 0.484b 0.465b 0.406a 0.0116 0.001 0.01 0.001
 Day 38 to 55 0.397a,b 0.397a,b 0.377a 0.428b 0.400a,b 0.378a 0.0116 0.01 0.15 0.01
 Day 56 to 62 0.477d 0.421a,b,c 0.409a,b 0.461b,c,d 0.471c,d 0.406a 0.0116 0.001 0.21 0.001
 Overall 0.446b,c 0.433a,b 0.423a 0.474d 0.459c,d 0.418a 0.0080 0.01 0.001 0.001
Carcass
 ADG, g/d3 823E 868D 954A,B 880C,D 918B,C 967A 12.1 0.09 0.001 0.001
 G:F, g/g4 0.355a 0.354a 0.342a 0.387b 0.375b 0.342a 0.0050 0.01 0.001 0.001
 Cold-weight, kg 73.0 75.8 81.0 76.4 78.8 82.0 0.75 0.11 0.001 0.001
 Kill-out, % 76.1 77.0 77.0 77.2 77.5 78.0 0.30 0.39 0.001 0.01
 Muscle, mm 50.2 51.4 51.8 50.8 51.9 52.2 0.51 0.94 0.18 0.005
 Fat, mm 11.4C 12.0B,C 13.8A 11.9B,C 12.4B,C 13.1A,B 0.35 0.09 0.79 0.001
 Lean meat, % 58.0 57.7 56.3 57.7 57.5 56.9 0.29 0.12 0.90 0.001

1Least squares means and pooled standard errors of the mean are presented. Values are the mean of data from both batches of the experiment.

2BW, body weight; ADFI, average daily feed intake; ADG, average daily gain; G:F, gain-to-feed ratio.

3Carcass ADG = From weight at start of experiment to slaughter = ([carcass weight in kg − BW on day 1 × 0.65] × 000)/number of days on treatment (Lawlor and Lynch, 2005).

4Carcass Gain:Feed = From start of experiment to slaughter = carcass ADG (g)/total average daily feed intake.

a,b,c,dWithin each row, values that do not share a common superscript are significantly different (P < 0.05).

A,B,C,D,EWithin each row, values that do not share a common superscript tend to be different (0.05 < P < 0.10).