Copulatory behavior of golden hamsters: effects on pregnancy.

Physiology & Behavior
D L LanierD A Dewsbury

Abstract

Two experiments were conducted to study the role of male copulatory behavior in initiating physiological responses necessary for pregnancy in female hamsters. In Experiment 1, it was found that copulation beyond the first ejaculatory series is critical to attainment of maximal probabilities of pregnancy. Whereas all females became pregnant when mated to a criterion of sexual satiety, only 20 percent were pregnant after one ejaculatory series. The relationship between increased copulatory stimulation and increased probability of pregnancy was further refined in Experiment 2. Females required more than 4 ejaculatory series to maximize the probability of pregnancy. Mounts without intromission had no effect. Neither parturition number of ova shed, nor little size appeared affected by amount of copulatory stimulation. A coadaptation between the copulatory pattern of the males and the response systems of the females of several rodent species appears to have evolved and to aid successful reproduction.

References

Feb 14, 1975·Science·D A Dewsbury, D Q Estep
May 1, 1973·Endocrinology·C H Rodgers, N B Schwartz
Feb 1, 1972·Endocrinology·C H Rodgers, N B Schwartz
Jan 1, 1972·Behaviour·D F Hardy
Jun 1, 1965·Proceedings of the National Academy of Sciences of the United States of America·J R WilsonB Le Boeuf
Dec 1, 1969·Journal of Comparative and Physiological Psychology·N T Adler
Oct 1, 1968·Journal of Reproduction and Fertility·M Diamond, R Yanagimachi
Dec 1, 1968·Proceedings of the Society for Experimental Biology and Medicine·W G Dilley, N T Adler
Feb 1, 1967·Journal of Reproduction and Fertility·R B Land, T E McGILL
Feb 1, 1959·Journal of Comparative and Physiological Psychology·F A BEACH, R G RABEDEAU

❮ Previous
Next ❯

Citations

Dec 1, 1976·Physiology & Behavior·D A Dewsbury, D L Lanier
Dec 1, 1979·Physiology & Behavior·R G Noble
Nov 1, 1990·Physiology & Behavior·C Hedricks, M K McClintock
Mar 14, 2000·Physiology & Behavior·M ArteagaJ Velázquez-Moctezuma
Jan 15, 2002·European Neuropsychopharmacology : the Journal of the European College of Neuropsychopharmacology·M ArteagaJ Velázquez-Moctezuma
Oct 13, 2006·Proceedings. Biological Sciences·Annaliese K BeeryIrving Zucker
Jan 15, 1997·Annals of the New York Academy of Sciences·S W NewmanS Kollack-Walker
Nov 1, 1981·Physiology & Behavior·C A Bean, D Q Estep
Sep 19, 2006·Brain Research·Robert L Meisel, Amanda J Mullins
Aug 16, 2016·Molecular Reproduction and Development·Marlon R SchneiderMatthew D Dean
Dec 24, 2020·Biology of Reproduction·Michael Lough-StevensMatthew D Dean

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.