Scrapie – 4 Steps for Sheep and Goat Producers
Haley White
Willamette Livestock & Forages
ODA, the Oregon Department of Agriculture, in collaboration with USDA and APHIS
Haley White
Willamette Livestock & Forages
ODA, the Oregon Department of Agriculture, in collaboration with USDA and APHIS
In a previous article, we highlighted the need for genetically improving the length of ewe productive life in U.S. sheep based on our studies in Katahdin sheep. Ewe longevity is an example of a trait that will benefit from genomic selection because it is sex limited (only females have records) and measured late in the life of the animals. Therefore, the Sheep GEMS team has conducted genomic studies to support the implementation of genomic selection to improve ewe longevity in U.S. sheep.
Ewe productive longevity, which is the number of days between a ewe’s first and last lambing, positively impacts flock profitability in at least three ways. It reduces annual ewe replacement costs. It increases ewe output by increasing the proportion of mature ewes in the flock. And lastly, ewes that live longer usually have fewer reproductive…
Genetic diversity is what allows for adaptation and evolution in response to change, whether that change is environmental or consumer driven.
Genetic diversity is what allows for adaptation and evolution in response to change, whether that change is environmental or consumer driven.
Genetic diversity is what allows for adaptation and evolution in response to change, whether that change is environmental or consumer driven.
Genetic diversity is what allows for adaptation and evolution in response to change, whether that change is environmental or consumer driven.
Genetic diversity is what allows for adaptation and evolution in response to change, whether that change is environmental or consumer driven.
DNA from 15,586 sheep were genotyped from four breeds in the National Sheep Improvement Program: Katahdin (12,495), Rambouillet (1276), Polypay (1292), and Suffolk (523). Genotypes for five genetic conditions.
In this first article on the topic of genomic selection, we will discuss the use of genomic information for the prediction of genomic breeding values.