Table 15.

Mean values of copulatory parameters of the first series of copulatory activity of male DAT-KO, HET and WT rat sub-lines at the first (sexually naïve condition) and at the fifth copulatory test (sexually experienced condition) with a receptive female rat.

	Rat Sub-Lines
Copulatory Parameters	DAT-KO		HET		WT
	Naive	Experienced	Naive	Experienced	Naive	Experienced
NCPE	0.5 #	0.5 #	1.8	3 * #	1	1.2
ML	180	20 *	200	20 *	560	50 *
IL	210	17 *	360	26 *	580	40 *
EL	980	445 *	1320	920	1420	1020 *
MF	10	7 *	20	20	14	13
IF	10	9	11	12	10	14
PEI	250 #	260 #	480	280 *	470	360
EF	2.2	3.5 *	1.3	2.7 *	1.1	2.4 *
III	350 #	30 *	360	40 *	700	50 *
CE	0.50 #	0.56 * #	0.46	0.48	0.41	0.52 *

NCPE = non-contact penile erections; ML, IL, EL = mount/intromission/ejaculation latency (seconds); MF, IF, EF = mount/intromission/ejaculation frequency; PEI = post ejaculatory interval (seconds); III = inter intromission interval (seconds); CE = copulatory efficiency (for definitions see legend of Table 8 and Table 11). Experimental details and data are in [296]. * = significantly different, experienced vs. naive, same rat sub-line, for each couple of rat sub-lines. # = significantly different, naïve/experienced DAT-KO/HET sub-lines vs. naïve/experienced WT rat sub-lines.