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

OS19-124 (project overview)

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

Description:

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).

Type:

Peer-reviewed Journal Article

File:

Download file (PDF)

Authors:

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

This product is associated with the project "The Impact of Estimated Breeding Values on Parasite Resistance and Reduced Parasitism in Sheep"

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.