Table 1. Mean and standard deviation for weight and body length of offspring during lactation.

	G1	G2	P
Body weight
Birth	6.67 ± 0.84	6.65 ± 0.67	0.890
7 days	12.50 ± 0.87	10.85 ± 1.69	<0.001
14 days	27.34 ± 4.60	21.87 ± 1.71	<0.001
21 days	34.13 ± 1.74	29.57 ± 2.55	<0.001
Body length
Birth	5.20 ± 0.24	5.06 ± 0.35	0.079
7 days	6.46 ± 0.37	6.10 ± 0.45	<0.001
14 days	8.67 ± 0.79	7.76 ± 0.56	<0.001
21 days	10.43 ± 0.35	9.36 ± 0.71	<0.001

G1: breeding females, control group and G2: breeding females exposed to cigarette smoke.