Genetic Evaluation of Growth Traits in New Synthetic Rabbit Line in Egypt

Table 4.

The improvement in synthetic line, (Egy-line) comparing topurebreds for body weights and relative growth traits.

  Improvement in Egy-line relative to

Traits NMER (N) Ganit Flander (G)
Body weights at  age: Contrast ± SE Contrast ± SE
5 weeks    45.0 ± 14.9 ** 32.0 ± 16.2 **
6 weeks 112.2 ± 16.8** 78..9 ± 18.3**
8 weeks 235.9 ± 23.0** 144.8 ± 25.4**
10 weeks 303.0 ± 30.1** 176.8 ± 32.0**
12 weeks 360.5 ± 34.9** 202.2 ± 36.5**
14 weeks 395.2 ± 40.7 ** 229.4 ± 46.2**
16 weeks 443.8 ± 48.8 ** 279.9 ± 52.9**
18 weeks 426.3 ± 45.5** 276.9 ± 49.4**
20 weeks 396.5 ± 60.7 ** 277.6 ± 60.2**

RGR at age intervals:    

5-6 week 7.9 ± 0.92 ** 4.6 ± 1.0**
6-8 weeks 8.4 ± 1.4** 4.5 ± 1.6**
8-10 week 3.0 ± 1.6* 0.30 ± 1.9ns
10-12 week 0.90 ± 0.91ns 0.10 ± 0.95ns
12-14 week 1.5 ± 0.57 ** 1.8 ± 0.54**
14-16 week 1.2 ±0.60* 1.5 ± 0.59**
16-18 week -1.7 ± 0.55** -0.60 ± 0.58ns
18-20 week -0.20 ± 0.46 ns 1.2 ± 0.45 **
5-20 week 10.6 ±2.5** 3.1 ± 2.4 ns

NS= not significant at P > 0.05; * = P < 0.05; ** = P < 0.01; RGR = relative growth traits