Table 1.
Effects of dietary methionine restriction on the growth performance of intrauterine growth retardation pigs at 49 and 105 d of age
| Item1 | NBW-CON | IUGR-CON | IUGR-MR |
|---|---|---|---|
| Days 21 to 492 | |||
| RDG, g·d−1·kg−1 | 58.17 ± 1.38a | 51.31 ± 1.30b | 42.65 ± 1.43c |
| RDFI, g·d−1·kg−1 | 47.83 ± 1.18b | 50.25 ± 1.21ab | 53.07 ± 1.61a |
| G:F | 0.67 ± 0.02a | 0.60 ± 0.02b | 0.50 ± 0.01c |
| Days 50 to 1053 | |||
| RDG, g·d−1·kg−1 | 32.99 ± 1.53b | 44.48 ± 1.59a | 45.64 ± 1.68a |
| RDFI, g·d−1·kg−1 | 38.04 ± 0.48b | 44.65 ± 1.22a | 45.59 ± 0.67a |
| G:F | 0.45 ± 0.01 | 0.44 ± 0.01 | 0.44 ± 0.01 |
a–cWithin a row, means with different superscript letters differ, P < 0.05.
1NBW-CON = normal birth weight pigs fed control diets; IUGR-CON = intrauterine growth restriction pigs fed control diets; IUGR-MR = intrauterine growth restriction pigs fed methionine restriction diets; RDG = relative daily gain (BW gain (g)· day (d)−1 · starting BW (kg)−1); RDFI = relative daily feed intake (feed consumption (g) · day (d)−1 · mean BW (kg)−1); G:F = feed efficiency (BW gain (g) · feed consumption (g)−1).
2Results are presented as mean ± SE (n = 6 replicates (pens) with five piglets per replicate).
3Results are presented as mean ± SE (n = 6 replicates (pens) with four piglets per replicate).