Table 5. Summary of the delivery and pup data (Continued)

Group/dose (mg/kg/day)		PND4		Viability index (%)		Sex ratio (male/female)1)		Delivery No. of abonor-mality (%)	Gestation index (%)
		No. of live pups
		Male	Female	PND 0	PND 4	PND 0	PND 4
G1/0	Mean	6.6	5.9	94.5	93.2	1.1	1.1	0.0	100.0
	S.D.	2.6	2.7	10.2	10.8
	N	11	11	11	11	(78/70)	(73/65)
G2/12.5	Mean	6.6	5.6	97.5	93.7	1.2	1.2	0.0	100.0
	S.D.	1.7	1.8	4.4	7.1
	N	10	10	94	100	(71/59)	(66/56)
G3/50	Mean	5.9	7.3	99.4	95.6	0.8	0.8	0.0	100.0
	S.D.	1.6	2.3	2.2	9.5
	N	6	6	12	12	(75/92)	(71/87)
G4/200	Mean	5.3	5.7	98.8	85.3	1.1	0.9	0.0	83.3
	S.D.	1.5	2.1	4.0	14.3
	N	4	4	10	10	(69/63)	(53/57)

The viability index on PND 0 (%) = (Number of pups born alive on PND 0 / Total Number of pups born) × 100.
The viability index on PND 4 (%) = (Number of pups surviving on PND 4 / Number of pups born alive on PND 0) × 100.
Gestation index (%) = (Number of females with live pups / Number of pregnant females) × 100.
Sex ratio = Number of live male pups / Number of live female pups (on postpartum).
PND, postnatal day; N, number of animals.