Open Journal of Agricultural Research

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

Table 6.

Direct (H^I) and maternal (H ^M) heterosis anddirect recombination effect and their standard errors (±SE) for growth traits.


Traits		Direct heterosis(H^I)			Maternal heterosis(H^M)			Recombination(R^I)

Body weights:	Units ± SE		H ^I%	Units ± SE		H ^M%	Units ± SE

5 weeks	-12.4 ± 10.2^ns		-2.8	48.7 ± 10.9 ^ns		10.8	-35.5 ± 19.1 ^ns
6 weeks	57.4 ± 12.8^**		10.3	21.9 ± 12.1^ns		3.9	30.8 ± 22.2^ns
8 weeks	113.2 ± 18.5 ^**		14.9	100.1 ± 16.4^**		13.2	137.4 ± 30.7^**
10 weeks	129.5 ± 24.3^**		12.7	163.7 ± 21.1 ^**		16.0	236.1 ± 39.2^**
12 weeks	118.8 ± 29.3^**		9.5	192.5 ± 24.2^**		15.4	300.6 ± 45.0^**
14 weeks	68.1 ± 35.3 ^ns		4.6	194.0 ± 28.2 ^**		13.2	355.8 ± 52.6^**
16 weeks	20.9 ± 36.8 ^ns		1.3	229.4 ± 32.2^**		14.1	458.5 ± 56.2^**
18 weeks	-17.4 ± 45.8^ns		-0.96	225.7 ± 36.0^**		12.4	529.9 ± 61.2^**
20 weeks	-66.9 ± 49.7^ns		-3.3	252.9 ± 49.2^**		12.4	532.1 ± 61.2^**

RGR at age intervals:

5-6 week	-0.75 ± 0.70 ^ns		-3.4	6.3 ± 0.66 ^**		28.8	11.7 ± 1.2 ^**
6-8 weeks	0.54 ± 1.1^ns		1.8	10.0 ± 1.0^**		33.5	16.1 ± 1.8^**
8-10 week	-1.0 ± 1.1^ns		-3.5	4.1 ± 0.92^**		14.5	6.8 ± 1.7^**
10-12 week	-1.8 ± 0.75^**		-9.5	± 1.1±.62 ^ns		5.8	2.9 ± 1.2^**
12-14 week	-0.81 ± 0.52 ^ns		-5.5	0.51 ± 0.43^ns		3.4	2.6 ± 0.69 ^**
14-16 week	-1.2 ± 0.52 ^*		-10.3	0.52 ± 0.43^ns		4.5	2.5 ± 0.72^**
16-18 week	1.9 ± 0.47^**		17.2	-0.74 ± 0.37^*		-6.7	-0.34 ± 0.67^ns
18-20 week	-0.59 ± 0.37 ^ns		-5.7	-0.48 ± 0.30^ns		-4.6	0.25 ± 0.53^ns
5-20 week	-9.2 ± 2.0^**		-7.4	11.7 ± 1.6^**		9.5	24.6 ± 2.9^**

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