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Animal Reproductive Science Lab
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A lab of animal reproductive science that explores how sperm function and how they are produced.

AboutAbout the lab
Uncovering how sperm work and how they are made, at the molecular level.
The Animal Reproductive Science Lab studies reproductive phenomena at the molecular level, using mammals (mice, pigs, and cattle).
In addition to investigating how sperm function and how they are produced, the lab analyzes the effects of environmental chemicals on embryogenesis and development.
One of its goals is to develop techniques for artificially manipulating reproductive phenomena, as well as developmental engineering technologies.
In the endowed research unit “Reproductive Technology Development Laboratory Repro-SOLEIL,” the lab works to advance and improve advanced assisted reproductive technologies, mainly targeting male infertility.
Key terms
- Spermatogonial stem cells
- Cells in the testis that give rise to sperm. They sustain the ability to keep producing sperm.
- Environmental chemicals
- Chemicals that exist in the environment and can be taken up into living organisms. Evaluating their safety and toxicity is an ongoing challenge.
- Developmental engineering
- Techniques that make use of the mechanisms of animal development to artificially manipulate fertilized eggs, embryos, and the like.
NewsLab news
View More ↗ResearchResearch themes
The Animal Reproductive Science Lab aims to clarify reproductive phenomena at the molecular level, using mammals (mice, pigs, and cattle). It is also working on technologies for artificially manipulating reproductive phenomena and on developmental engineering technologies.
*Illustrative imageFunctional analysis of mammalian sperm
The lab aims to gain an integrated understanding of the sperm functions involved in fertilization and development. Through applications of this work, it aims to contribute to livestock production and developmental engineering.
*Illustrative imageElucidating how sperm are produced
The lab studies how germ cells behave and are regulated in the male body, with the aim of developing ways to use this knowledge. Topics include the behavior of spermatogonial stem cells, the age-related decline of spermatogenesis, and techniques for producing sperm from the testes of castrated cattle.
*Illustrative imageEffects of chemicals on development
The lab conducts research to evaluate the safety and toxicity of environmental chemicals. It also clarifies the mechanisms of animal development, aiming to modify animal functions through applying that knowledge.
MembersFaculty
The lab's members consist of faculty, technical assistants, and students in the doctoral, master's, and undergraduate programs.
- ProfessorKentaro Tanemura
- Associate ProfessorKenshiro Hara
- Assistant ProfessorAtsushi Sugawara
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Human sperm under microscope” Prof. Ideal / CC0 (cropped)
- Functional analysis of mammalian sperm: “Spermatozoa in Semen Microscopy” Ajay Kumar Chaurasiya / CC BY-SA 4.0 (cropped)
- Elucidating how sperm are produced: “Microscope (inverted)” Unknown photographer / Public domain (cropped)
- Effects of chemicals on development: “Laboratoř titrace” Milda 444 / CC BY-SA 4.0 (cropped)
- Related lab (Animal Functional Morphology Lab): “Cows and calves in the project dairy barn - DPLA - c909d9085531ee0ff2c67” Rothstein, Arthur / Public domain (cropped)
- Related lab (Aquatic Animal Physiology Lab): “Shellfish farming” Ned Dwyer / CC BY-SA 4.0 (cropped)
- Related lab (Animal Breeding and Genetics Lab): “Herd of Hereford cattle in Canada” Quintin Soloviev / CC BY 4.0 (cropped)
- Related lab (Plant Pathology Lab): “Cucumber mosaic virus symptoms” William M. Brown Jr. / CC BY 3.0 us (cropped)
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