Reproductive behavior in female rats

Reproductive behavior in female rats




Female rats, lordosis, pacing, reproduction, sexual behavior


Reproductive physiology and sexual behavior in rats play crucial roles in understanding their reproductive capabilities and mating dynamics. Female rats exhibit mating behavior during estrus, involving mounting, intromission, and ejaculation. Lordosis, the arched-back posture, is a characteristic behavior evaluated using the lordosis quotient (LQ). Video recording enables accurate assessment of lordosis, and female rats actively participate in mating through proactive behaviors and vocalizations. In natural settings, females display a range of mating behaviors, indicating their motivation and preferences. Serotonergic drugs’ effects on lordosis are complex and influenced by 5-HT receptor activation. Female rats modulate the mating pace through pacing behavior, optimizing vaginal-cervical stimulation for successful pregnancy. In laboratory settings, females regulate their mating rate through approach and avoidance behaviors. Pacing is measured by the exit ratio and interintromission interval, which increase as sexual stimuli intensify. Pacing reflects the female’s ability to discern sexual cues and execute appropriate motor responses. Understanding reproductive physiology and sexual behavior in female rats provides insights into their reproductive capabilities, mating dynamics, and the impact of serotonergic drugs. Pacing behavior plays a vital role in optimizing reproductive outcomes, highlighting the nuanced nature of sexual behavior in rats. Controlled sexual interactions can elicit positive effects and conditioning, further emphasizing the importance of studying sexual behavior in female rats.


Iannaccone PM, Jacob HJ. Rats! Dis Model Mech. 2009;2(5-6):206. doi:10.1242/DMM.002733

Chu X, Ågmo A. Sociosexual interactions in rats: Are they relevant for understanding human sexual behavior? Int J Psychol Res (Medellin). 2016;9(2):76-95. doi:10.21500/20112084.2339

Karabaşoğlu C, Erbaş O. Rat sexual behaviours. Journal of Experimental and Basic Medical Sciences. 2021;2(2):139-146. doi:10.5606/jebms.2021.75650

Olivier B. Serotonin: A never-ending story. Eur J Pharmacol. 2015;753:2-18. doi:10.1016/J.EJPHAR.2014.10.031

Bonthuis PJ, Cox KH, Searcy BT, Kumar P, Tobet S, Rissman EF. Of mice and rats: Key species variations in the sexual differentiation of brain and behavior. Front Neuroendocrinol. 2010;31(3):341-358. doi:10.1016/J.YFRNE.2010.05.001

Angoa-Pérez M, Kuhn DM. Neuroanatomical dichotomy of sexual behaviors in rodents: A special emphasis on brain serotonin. Behavioural Pharmacology. 2015;26(6):595-606. doi:10.1097/FBP.0000000000000157

Otto GM, Franklin CL, Clifford CB. Biology and diseases of rats. In: Fox JG, Anderson LC, Otto GM, Pritchett-Corning KR, Whary MT, eds. Laboratory Animal Medicine. Third Edition. Academic Press; 2015:151-207. doi:10.1016/B978-0-12-409527-4.00004-3

Martínez-Gómez M, Cruz Y, Salas M, Hudson R, Pacheco P. Assessing pain threshold in the rat: Changes with estrus and time of day. Physiol Behav. 1994;55(4):651-657. doi:10.1016/0031-9384(94)90040-X

Saibaba P, Sales GD, Stodulski G, Hau J. Behaviour of rats in their home cages: Daytime variations and effects of routine husbandry procedures analysed by time sampling techniques. Lab Anim. 1996;30(1):13-21. doi:10.1258/002367796780744875

Rosen M, Kahan E, Derazne E. The influence of the first-mating age of rats on the number of pups born, their weights and their mortality. Lab Anim. 1987;21(4):348-352. doi:10.1258/002367787781363282

Ayala ME, Monroy J, Morales L, Castro ME, Domínguez R. Effects of a lesion in the dorsal raphe nuclei performed during the juvenile period of the female rat, on puberty. Brain Res Bull. 1998;47(3):211-218. doi:10.1016/S0361-9230(98)00074-4

Eckstein B, Golan R, Shani J. Onset of puberty in the immature female rat induced by 5α–androstane–3β,17β–diol. Endocrinology. 1973;92(3):941-945. doi:10.1210/ENDO-92-3-941

Maeda K ichiro, Ohkura S, Tsukamura H. Physiology of reproduction. In: The Laboratory Rat. Academic Press; 2000:145-176. doi:10.1016/B978-012426400-7.50048-0

Burek JD. Pathology of Aging Rats. 1st Edition. CRC Press; 2017. doi:10.1201/9781351075435

Jenkins WJ, Becker JB. Sex. In: Whishaw IQ, Kolb B, eds. The Behavior of the Laboratory Rat. Oxford University Press; 2005:307-320. doi:10.1093/acprof:oso/9780195162851.001.0001

Garside DA, Allen Charlton A, Heath KJ. Establishing the timing of implantation in the Harlan Porcellus Dutch and New Zealand White Rabbit and the Han Wistar Rat. Regulatory Toxicology and Pharmacology. 1996;23(1):69-73. doi:10.1006/RTPH.1996.0010

Colby LA, Nowland MH, Kennedy LH. Clinical Laboratory Animal Medicine: An Introduction. Fifth Edition. Wiley Blackwell; 2020.

Kohn DF, Clifford CB. Biology and Diseases of Rats. In: Laboratory Animal Medicine. Elsevier; 2002:121. doi:10.1016/B978-012263951-7/50007-7

Barnett SA. The Rat: A Study in Behavior. 1st Edition. Routledge; 2017. doi:10.4324/9781315134468

Erskine MS. Solicitation behavior in the estrous female rat: A review. Horm Behav. 1989;23(4):473-502. doi:10.1016/0018-506X(89)90037-8

Mendelson SD. A review and reevaluation of the role of serotonin in the modulation of lordosis behavior in the female rat. Neurosci Biobehav Rev. 1992;16(3):309-350. doi:10.1016/S0149-7634(05)80204-0

Cameron NM, Fish EW, Meaney MJ. Maternal influences on the sexual behavior and reproductive success of the female rat. Horm Behav. 2008;54(1):178-184. doi:10.1016/j.yhbeh.2008.02.013

Paredes RG, Vazquez B. What do female rats like about sex? Paced mating. Behavioural Brain Research. 1999;105(1):117-127. doi:10.1016/S0166-4328(99)00087-X

Erskine MS, Baum MJ. Effects of paced coital stimulation on termination of estrus and brain indoleamine levels in female rats. Pharmacol Biochem Behav. 1982;17(4):857-861. doi:10.1016/0091-3057(82)90373-2

Gilman DP, Mercer LF, Hitt JC. Influence of female copulatory behavior on the induction of pseudopregnancy in the female rat. Physiol Behav. 1979;22(4):675-678. doi:10.1016/0031-9384(79)90229-4

Beach FA. Sexual attractivity, proceptivity, and receptivity in female mammals. Horm Behav. 1976;7(1):105-138. doi:10.1016/0018-506X(76)90008-8

Cummings JA, Becker JB. Quantitative assessment of female sexual motivation in the rat: Hormonal control of motivation. J Neurosci Methods. 2012;204(2):227-233. doi:10.1016/j.jneumeth.2011.11.017

Pfeifle JK, Edwards DA. Midbrain lesions eliminate sexual receptivity but spare sexual motivation in female rats. Physiol Behav. 1983;31(3):385-389. doi:10.1016/0031-9384(83)90206-8

Bakker J, van Ophemert J, Koos Slob A. Sexual differentiation of odor and partner preference in the rat. Physiol Behav. 1996;60(2):489-494. doi:10.1016/S0031-9384(96)80023-0

Drewett RF. Sexual behaviour and sexual motivation in the female rat. Nature. 1973;242(5398):476-477. doi:10.1038/242476a0

Jenkins WJ, Becker JB. Female rats develop conditioned place preferences for sex at their preferred interval. Horm Behav. 2003;43(4):503-507. doi:10.1016/s0018-506x(03)00031-x

Paredes RG, Vazquez B. What do female rats like about sex? Paced mating. Behavioural Brain Research. 1999;105(1):117-127. doi:10.1016/s0166-4328(99)00087-x

Matthews TJ, Grigore M, Tang L, Doat M, Kow LM, Pfaff DW. Sexual reinforcement in the female rat. J Exp Anal Behav. 1997;68(3):399-410. doi:10.1901/jeab.1997.68-399

Oldenburger WP, Everitt BJ, de Jonge FH. Conditioned place preference induced by sexual interaction in female rats. Horm Behav. 1992;26(2):214-228. doi:10.1016/0018-506x(92)90043-u

French D, Fitzpatrick D, Law OT. Operant investigation of mating preference in female rats. J Comp Physiol Psychol. 1972;81(2):226-232. doi:10.1037/h0033535




How to Cite

Boğa Kuru, B., & Kuru, M. (2023). Reproductive behavior in female rats: Reproductive behavior in female rats. Rats, 1(1), 21–26.