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. 2017 Dec 15;8(4):319–326.

Table 4.

Effect of chlorpyrifos (CPF) on epididymal sperm parameters. Values are expressed as mean ± SEM.‎

Groups	Sperm count (10 ⁶ ml ^-1 )	Sperm viability (%)	Sperm motility (%)	Immature sperm (%)	DNA damage (%)	Sperm count (10 ⁶ ml ^-1 )
*5 days*
Control	74.67 ± 1.60^a	71.00 ± 2.64 ^a	71.68 ± 2.57 ^a	10.67 ± 0.76 ^a	8.29 ± 0.47 ^a	74.67 ± 1.60 ^a
CPF	73.00 ± 2.00 ^a	57.33 ± 2.25 ^a	57.06 ± 3.06 ^a	11.00 ± 0.86 ^a	11.15 ± 0.95 ^a	73.00 ± 2.00 ^a
*15 days*
Control	73.29 ± 2.06 ^a	70.83 ± 2.37 ^a	70.90 ± 1.50 ^a	10.42 ± 0.99 ^a	7.98 ± 1.36 ^a	73.29 ± 2.06 ^a
CPF	68.67 ± 6.82 ^a	56.67 ± 3.32 ^a	54.82 ± 2.14 ^a	20.00 ± 1.80 ^b	13.52 ± 0.81 ^b	68.67 ± 6.82 ^a
*30 days*
Control	67.99 ± 1.59 ^a	72.58 ± 4.19 ^a	69.96 ± 3.67 ^a	10.22 ± 0.52 ^a	8.07 ± 1.27 ^a	67.99 ± 1.59 ^a
CPF	36.33 ± 2.56^b	42.00 ± 1.32^b	42.42 ± 3.80^b	31.42 ± 2.50^c	20.09 ± 0.94^bc	36.33 ± 2.56^b
*45 days*
Control	73.19 ± 1.69 ^a	73.99 ± 2.71 ^a	75.21 ± 2.54^a	10.30 ± 0.77^a	8.92 ± 1.19 ^a	73.19 ± 1.69 ^a
CPF	31.00 ± 1.50^bc	31.33 ± 3.01^bc	29.55 ± 7.36^bc	38.00 ± 1.80^cd	25.97 ± 2.59^bcd	31.00 ± 1.50^bc

^abc

Different superscript letters in each column indicate significant differences between all groups (p < 0.05).