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Table 2 Growth performance of pigs from weaning to slaughter1:28 to 144 d of age

From: Influence of sows’ parity on performance and humoral immune response of the offspring

Gestation Multiparous (MP) Primiparous (PP) SEM2 P-value3
Lactation MP PP MP PP (n = 5) Gestation Lactation
Body weight, kg
 28 d 8.4 7.9 7.9 7.7 0.53 0.512 0.454
 74 d 33.5 30.7 31.6 29.6 1.29 0.273 0.083
 116 d 63.5 61.2 59.8 54.8 1.84 0.015 0.065
 144 d 88.0 86.0 82.7 75.7 2.15 0.002 0.052
Average daily gain, g
 28–144 d 675 663 634 576 15.5 < 0.001 0.037
 28–74 d 524 476 494 457    
 74–116 d 750 760 707 625    
 116–144 d 816 816 763 712    
Average daily feed intake, g
 28–144 d 1602 1582 1474 1401 42.0 < 0.001 0.358
 28–74 d 799 746 773 747    
 74–116 d 2004 2033 1854 1770    
 116–144 d 2386 2381 2120 2005    
Gain to feed ratio
 28–144 d 0.42 0.42 0.43 0.41 0.006 0.526 0.076
 28–74 d 0.66 0.64 0.64 0.61    
 74–116 d 0.37 0.37 0.38 0.35    
 116–144 d 0.34 0.34 0.36 0.36    
  1. 1Gestation indicates the type of sow from which piglets were born, and lactation type indicates the type of sow which suckled the piglets
  2. 3SEM: standard error of the mean
  3. 2All variables were analyzed by repeated measures. The model included type of gestating (G) and lactating (L) sow, age of the piglet (A), and their interactions GxL, GxA, LxA, and GxLxA. Age was always significant (P < 0.001), while other interactions were not significant for any variable (P > 0.10) except for body weight. The P values of the interactions (GxA, LxA) for body weight were 0.001 and 0.069, respectively