Effect of a moderate feed restriction on subsequentgrowth and body composition in pigs raised underhigh environmental temperatures

TL;DRAbstract

The experiment was conducted to assess the influence of a moderate feed restriction during the growth period on overall performance, corporal traits and fatty acid composition in pig backfat in pigs raised under high environmetal temperatures. A hundred Large White x (Large White x Landrace) barrows with an average initial weight of 34.5 kg were randomly distributed, in pens (10 pigs per pen). Fifty pigs were fed ad libitum for 36 days (AL pigs) and another fifty were restricted by 25% of their ad libitum consumption during the same period (R pigs). During the subsequent re-feeding period (64 days) all pigs were fed ad libitum. The only diet used contained 13.4 MJ ME kg -1 , 17% crude protein and 1.3% lysine. The minimum, maximum and mean average temperatures recorded during the feed restriction and post-restriction periods were, C: 21.5 1.2, 28.6 1.3 and 25.0 1.1, and 22.6 0.9, 31.2 1.0 and 26.9 0.9, respectively. Considering the whole study period, the average daily gain and average

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