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Jeffrey Held

Professor & SDSU Extension Sheep Specialist

605-688-5433

Animal Science Complex 112
Animal Science-Box 2170
University Station
Brookings, SD 57007

Jeffrey supports the citizens of South Dakota in his role as a Professor & SDSU Extension Sheep Specialist at the South Dakota State University campus in Brookings.

Also by Jeffrey Held

several adults and children standing together and accepting an award

2019 South Dakota Master Lamb Producers Association Award Winners Announced

October 22, 2019

Three families were named as 2019 South Dakota Master Lamb Producers during the South Dakota Master Lamb Producers Association awards program luncheon on September 28 in Spearfish. The luncheon took place as part of the 82nd Annual South Dakota Sheep Growers Association convention.

Sheep

A flock of white sheep grazing in a small pasture.

Use of the EAZI-BREED Sheep CIDR in Spring Mated Ewes

Efforts to manage the reproductive cycle of the ewe have been a focus of producers and researchers for decades. By nature sheep are seasonal breeders with active ewe estrus cycles expected from late-August until January in the Upper Midwest and in a state of anestrous (non-cyclic) for the other months. Recently a commercial progesterone intra-vaginal device, the EAZI-BREED sheep CIDR (controlled internal drug release) was approved in the US to synchronize estrus in mature ewes during the anestrous period.

several sheep standing in a pen next to a sign

SDSU Sheep Unit Hosts Lambing Time Open House February 21

February 13, 2019

The SDSU Sheep Unit hosts a lambing time open house February 21 from 12:30 p.m. to 4 p.m. The SDSU Sheep Unit is located 1.5 miles north of the South Dakota State University campus on Medary Avenue (3729 Medary Ave).

Sheep