Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Research Project: Does Sex of Littermates Affect Lifetime Productivity of Ewes?

Location: Range Sheep Production Efficiency Research

2013 Annual Report


1a.Objectives (from AD-416):
Test the null hypothesis that sex of littermates does not affect lifetime productivity of ewes.


1b.Approach (from AD-416):
An appropriate dataset will be extracted from the USDA, ARS, U.S. Sheep Experiment Station genetics database. Various statistical methods and models will be used to determine whether the sex of littermates affects the lifetime productivity of ewes. Wingate University will work with scientists at the U.S. Sheep Experiment Station to analyze and interpret the data.


3.Progress Report:

The goal of the agreement was to determine whether sex of littermates affects lifetime productivity of ewes. Two students and a faculty member from Wingate University-North Carolina and Agriculture Research Science scientists at the U.S. Sheep Experiment Station (USSES) extracted relevant data from the USSES genetics database. From the queries, a dataset was constructed, and analysis of the dataset was initiated. Based on the outcome, a new dataset will be generated for analysis in FY2014. This collaboration supports Objective 1 of the parent project, which is focused on improving reproductive efficiency and lifetime production of sheep.


Last Modified: 8/1/2014
Footer Content Back to Top of Page