Table 2. Sex ratio of animals in Experiment I after six-month culture.

Group	Sex	Total number	2nd Dev		2nd Spa		3nd Dev		3nd Spa		4th Dev		4th Spa		5th Dev
			Number	Percentage	Number	Percentage	Number	Percentage	Number	Percentage	Number	Percentage	Number	Percentage	Number	Percentage
I	Male	21	-	-	-	-	2	9.52%	8	38.10%	5	23.81%	5	23.81%	1	4.76%
	Female	24		-	-	-	2	8.33%	7	29.17%	8	33.33%	5	20.83%	2	8.33%
II	Male	40	1	2.50%	5	12.50%	6	14.00%	13	32.5%	10	25.00%	1	2.50%	5	12.50%
	Female	20	3	15.00%	2	10.00%	1	5.00%	13	65.00%	1	5.00%	-	-	-	-