Cornell Resources about Reproduction in Small Ruminants

Reproduction
Introduction to out of season breeding and synchronizing heats in small ruminants
Using the EAZI-Breed CIDR-G for Out-of-Season Breeding in Ewes (PDF) by Dr. Keith Inskeep - This document provides the basis for using progesterone CIDRs (controlled internal drug releasing devices) to synchronize estrus or to start the reproductive cycles of ewes that may not be cycling during spring, when daylength is increasing.
Reproductive results from breeding our milking ewes in March-April and June have been dramatically better than those reported in this paper. That may be due to the exposure of the ewes to vasectomized rams about 10 days prior to the insertion of CIDRs.
Out Of Season Breeding in Goats by Dr. tatiana Stanton - while originally written for meat goats it contains lots of information on standard practices in dairy goats and sheep
Cornell Sheep Dairy Protocols for synchronization and out of season breeding in sheep
Artificial Insemination in Small Ruminants
Goat Artificial Insemination Video Course 11 video series funded in part by Univ. of Maine, Cornell University, Cornell Coop. Ext. of St. Lawrence County and Northeast SARE (Project One19-377)
Goat AI supplemental handout- Dr. James Weber DVM supplemental 17-page guide for the above course covering heat synchronization, mucus evaluation, buck collection, semen evaluation & processing, etc.
Artificial Insemination Manual for Goats by Dr. Terry Gipson, PhD and Dr. Lionel Dawson, DVM - 54 page manual originally prepared by the American Institute for Goat Research for workshops in Kenya and Malawi and now used in U.S. courses.
Goat Repro Videos - Dr. Terry Gipson & Dr. Lou Nuti: Hands-on AI 9 min, AI Kit 6 min, Buck Effect 6 min, Estrus Synchronization 5 min, Semen Tank Handling 6 min, Signs of Estrus 35 sec
Vaginal Method for Sheep AI using chilled ram semen by Dr. Jim Weber, DVM, PhD, Univ. of Maine - based on method used in Iceland - details from Thorstein Olafsson, Aug 2017)
Semen Processing in Goats by Dr. Lou Nuti, International Dairy Goat Center, Prairie View A & M - an older manual but still helpful as an introduction
How to make an artificial vaginal for bucks and rams
Basics of collecting a ram or buck
Upcoming Events
Crops, Cows & Critters - Southwest New York Dairy, Livestock & Field Crops Newsletter Sponsorship
December 19, 2025
January 30, 2026
Our two forms of publications feature research-based and timely information from our four specialists, listed to the right, along with local event notifications and Cornell University outreach. This information is provided to participants who range from dairy, livestock, and field crops producers to agricultural suppliers and consultants.
Weekly Email Update: Shared with 625+ households who have signed up with our program.
Monthly Paper Mailer: To reach our stakeholders and farmers who lack internet access, we send out a monthly mailer where your company's logo and contact information would be featured with a mailing list of 330+ households.
If you sponsor our weekly and monthly publications you reach approximately 955 households.
Visit our website to view our newsletters!
2025 Cornell Food Beverage & Animal Feed Manufacturer Survey
December 19, 2025
Industry and Educational Advocates for New York State's Food, Beverage, and Animal Feed Manufacturing industries:
As you know, NYS has a diverse food and beverage manufacturing industry, in both the types of industries that exist and the wide distribution of firms by scale. Many manufacturing firms have strong backward linkages to agricultural production sectors in the state that support both farm-level and downstream food industry firms and consumers. In collaboration with the New York State Department of Agriculture and Markets, a team from Cornell University's Charles H. Dyson School of Applied Economics and Management has recently rolled out the 2025 New York State Food, Beverage, and Animal Feed Manufacturer Survey. The industry will benefit from an updated assessment of the industry that informs private and public investments and opportunities to support firm growth and improved profitability.
Boots in the Barn: Cornell Dairy Research Updates
January 13, 2026
January 20, 2026
January 27, 2026
February 3, 2026
February 10, 2026
February 17, 2026
February 24, 2026
Join us for some or all!
Announcements
No announcements at this time.





