Effect of chlorpyrifos (1/10 LD50, 33.3 mg kg-1 body weight) on serum calcium and phosphorus concentrations in male domestic rabbits.

Table 8: Effect of chlorpyrifos (1/10 LD50, 33.3 mg kg-1 body weight) on serum calcium and phosphorus concentrations in male domestic rabbits.

Parameter	Treatment	Experimental period (weeks)
Parameter	Treatment	1	2	3	4	5	6
Calcium (mg/dl)	Control	14.1 ± 0.4	13.8 ± 0.2	14.2 ± 0.5	13.6 ± 0.3	13.9 ± 0.4	14.0 ± 0.6
	Chlorpyrifos	14.9 ± 0.6	15.3 ± 0.7	16.0 ± 0.7	16.1 ± 1.0	16.0 ± 0.6	15.8 ± 0.5
	p-value	0.325	0.104	0.082	0.034	0.046	0.073
Phosphorus (mg/dl)	Control	7.3 ± 0.4	7.5 ± 0.3	7.1 ± 0.3	7.4 ± 0.2	7.5 ± 0.4	7.3 ± 0.3
	Chlorpyrifos	6.9 ± 0.2	6.5 ± 0.2	6.3 ± 0.1	6.7 ± 0.3	6.7 ± 0.1	6.4 ± 0.1
	p-value	0.331	0.032	0.065	0.096	0.088	0.047

The number of animals was 6 per time interval for each control and chlorpyrifos-treated rabbits. All values are expressed as mean ± SEM. p < 0.05: significant.