The impact of sire fecal egg count estimated breeding values on indicators of offspring gastrointestinal nematode infection, and relative impact of lamb estimated breeding values on sale value of ram lambs

Project Type: On-Farm Research
Funds awarded in 2019: $15,000.00
Projected End Date: 03/31/2022
Grant Recipient: USDA-ARS
Region: Southern
State: Arkansas
Principal Investigator:
Dr. Joan Burke
USDA, Agricultural Research Service
Genetic selection of sheep for resistance to gastrointestinal nematodes (GIN) has become a priority for pasturebased production of lambs to minimize the need for deworming. The objective of this experiment was to determine the impact of sire weaning or post-weaning fecal egg count (FEC) estimated breeding value (EBV; WFEC and PFEC, respectively) from the National Sheep Improvement Program (NSIP) on GIN infection in Katahdin lambs born in fall (Oct – Nov; n = 459) or winter (Jan – Feb; n = 378) of 2018 through 2021 at the USDA Agricultural Research Service (ARS).
Peer-reviewed Journal Article
J.M. Burke, University of Arkansas
M. Popp, University of Arkansas
J.E. Miller, Louisiana State University
D.R. Notter, Virginia Tech
Target audiences:
Farmers/Ranchers; Researchers
Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.