Skip Ribbon Commands
Skip to main content
Welcome from the Director

Dr. Thomas (Tod) Hansen is the Mabel I. and Henry H. Traubert Professor and Director of the Animal Reproduction and Biotechnology Laboratory and the Equine Reproduction Laboratory.

Welcome to the ARBL

The key to success for any living species on Earth is the ability to reproduce. Though fundamental to survival, reproduction often can present challenges. Environmental toxins weaken spermatozoa; aging compromises the health of the egg; illness and accidents threaten the preservation of valuable genetic material; and inefficiencies in reproduction result in wastage of agricultural animals. A different set of problems arises when reproduction is too successful and overpopulation results in any one species.

The Animal Reproduction and Biotechnology Laboratory (ARBL) is an interdisciplinary program dedicated to research in the problems and promises of reproduction and related biotechnologies.  

The ARBL includes faculty members from three departments: Biomedical Sciences, Clinical Sciences, and Animal Sciences. The Equine Reproduction Laboratory (ERL) is a program within ARBL.  More than 100 other faculty members and scientists collaborate with ARBL at local, regional, national, and international levels.

ARBL faculty members have gained many distinctions:

  • Two University Distinguished Professors
  • One member of the National Academy of Sciences
  • Director of the CSU School of Biomedical Engineering
  • Hill Professorship
  • Traubert Professorship
  • Alexander Chair
  • Iron Rose Ranch Chair
  • Wagonhound Land and Livestock College Chair in Equine Sciences
  • John E. Rouse Chair of Beef Cattle and Breeding Genetics

ARBL has a long history of relationships with industry and undertaking research that translates into applications in the private sector. For example, basic research in sexing sperm in cattle has led to commercial availability of this technique in beef and dairy cattle. A more recent example is development of nonsurgical animal sterilization, with applicability to solving problems of over-reproduction in wildlife species.

In addition to commercial services in equine theriogenology offered by the ERL, ARBL houses other active service centers:

We invite you to explore what we do and get to know our distinguished faculty members and our research and education programs.

​​​​​​​​​​​​​​​​​​​​​​Make a Gift to ARBL
Contact Us:
​​​​​1683 Campus Delivery
Fort Collins, Colorado 80523-1683

​​​​​​​​​​​​​​​​​​​​​​​​​(970) 491-3456

​​Fax: (970) 491-3557​