Table 1.
Body weight, absolute and relative food intake and serum leptin concentration in male and female pups
CC | RR | CR | RC | |
---|---|---|---|---|
A. Body weight | ||||
Male (21 d; g) | 46.0 ± 2.73a | 29.1 ± 2.09b | 31.0 ± 1.30b | 48.4 ± 1.30a |
Female (21 d; g) | 38.7 ± 1.93a* | 22.9 ± 0.69b* | 27.3 ± 0.36b* | 42.9 ± 1.04a* |
B. Serum leptin concentration in males | ||||
Leptin (ng ml−1) | 4.7 ± 0.83a | 2.3 ± 0.26a* | 5.2 ± 0.60a* | 9.3 ± 1.56b* |
Body weight (g) | 513.2 ± 10.5a* | 417.7 ± 10.8b* | 458.7 ± 17.2b* | 531.1 ± 8.6a* |
Food intake (g) | 33.8 ± 1.77a* | 29.8 ± 1.03a,b* | 26.6 ± 0.76b* | 32.6 ± 0.49a* |
Food intake (g (g body wt)−1) | 0.066 ± 0.003a,b | 0.072 ± 0.004a | 0.058 ± 0.001b* | 0.061 ± 0.002a,b |
C. Serum leptin concentration in females | ||||
Leptin (ng ml−1) | 3.4 ± 0.46a | 1.4 ± 0.21b* | 1.8 ± 0.30b,c* | 2.3 ± 0.28a,c* |
Body weight (g) | 326.1 ± 10.9a* | 252.4 ± 16.4b* | 262.9 ± 10.6b,c* | 317.7 ± 17.5a,c* |
Food intake (g) | 22.8 ± 1.03a* | 19.5 ± 0.19b* | 19.5 ± 0.40b* | 20.1 ± 2.20a,b* |
Food intake (g (g body wt)−1) | 0.070 ± 0.003a,b | 0.079 ± 0.004a | 0.075 ± 0.003a* | 0.063 ± 0.002b |
A, male and female pup body weight at 21 days of age. Maternal groups: mothers fed with control (C, 20% casein) or restricted (R, 10% casein) diet during pregnancy (first letter) and lactation (second letter). n = 5–6 litters. B, male offspring serum leptin at 110 days, body weight and absolute and relative food intake at 100 days of age. From 5 CC litters, 5 RR litters, 5 CR litters, and 4 RC litters. C, female offspring serum leptin at 110 days, body weight and absolute and relative food intake at 100 days of age. From 5 CC litters, 5 RR litters, 6 CR litters, and 6 RC litters. Groups not sharing a letter are statistically different
Female versus male P≤ 0.05. All values are mean ±s.e.m.