System Design for NMP and NPDES Permit Application for the U.S. Meat Animal Research Center

2006 ◽  
Keyword(s):  
System Design ◽  
Animal Research ◽  
Research Center ◽  
Permit Application ◽  
Meat Animal ◽  
The U.S

scholarly journals 279 Development, selection criteria, and performance of Composite IV sheep at the U.S. Meat Animal Research Center

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 207-207
Author(s):  
Tom Murphy ◽  
Brad Freking ◽  
Gary L Bennett ◽  
John W Keele
Keyword(s):  
Body Weight ◽  
Selection Criteria ◽  
Well Being ◽  
Animal Research ◽  
Research Center ◽  
Hair Sheep ◽  
Inclement Weather ◽  
Meat Animal ◽  
And Performance ◽  
The U.S

Abstract Average ewe prolificacy is low across the U.S., while fixed and variable costs of production can be substantial, especially in traditional shed-lambing systems. Pasture-lambing can reduce input costs but can present greater risk of inclement weather, predation, and internal parasitism. The Composite IV is a ½ Romanov, ¼ Katahdin, and ¼ White Dorper hair sheep developed at the U.S. Meat Animal Research Center. Objectives were to summarize Composite IV ewe and lamb performance under a pasture-lambing system with minimal disruption through weaning. Lamb survival to and body weight at weaning were greatest for singles (0.90 and 19.9 kg, respectively), intermediate for twins (0.82 and 15.9 kg), and lowest for triplets (0.65 and 14.6 kg; P < 0.01). Number of lambs born and weaned per ewe lambing were lower at 1-yr of age (1.55 and 1.24, respectively) than at 3- to 5-yr of age (2.20 to 2.23 and 1.75 to 1.82; P < 0.01). Within mature ewes (2- to 5-yr-old), twin litters were most frequent (58.7%), triplets intermediate (24.7%), and singles least (16.6%). While number of lambs weaned and total litter weaning weight were greater for triplet- than twin-bearing ewes (2.06 vs 1.70 and 28.9 vs 26.0 kg, respectively; P < 0.01), triplet-bearing ewes lost 1.78 lambs per additional lamb weaned. Results suggest productivity in pasture-lambing systems can be enhanced by identifying complementary breed combinations, maintaining heterosis, and selecting for characteristics associated with reduced labor and enhanced well-being.

scholarly journals Development, selection criteria, and performance of Composite IV sheep at the U.S. Meat Animal Research Center1,2

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. S150-S154
Author(s):  
Thomas W Murphy ◽  
Brad A Freking ◽  
Gary L Bennett ◽  
John W Keele
Keyword(s):  
Selection Criteria ◽  
Animal Research ◽  
Meat Animal ◽  
And Performance ◽  
The U.S

scholarly journals Comparing Genetic Value of Bulls from Different Breeds: Across Breed EPDs

EDIS ◽  
2006 ◽  
Vol 2006 (11) ◽  
Author(s):  
Gary R. Hansen
Keyword(s):  
Animal Research ◽  
Research Center ◽  
Animal Science ◽  
Fact Sheet ◽  
Genetic Potential ◽  
The Us ◽  
Adjustment Factors ◽  
Meat Animal ◽  
Genetic Value ◽  
Expected Progeny Differences

AN162, a 5-page fact sheet by Gary R. Hansen, describes how to use tables developed by the US Meat Animal Research Center (MARC) which provide adjustment factors to allow for the calculation of across-breed expected progeny differences (AB-EPDs) to assess genetic potential across different breeds. Published by the UF Department of Animal Science, March 2006.

Predicting breed composition using breed frequencies of 50,000 markers from the US Meat Animal Research Center 2,000 Bull Project1,2

2011 ◽  
Vol 89 (6) ◽  
pp. 1742-1750 ◽  
Author(s):  
L. A. Kuehn ◽  
J. W. Keele ◽  
G. L. Bennett ◽  
T. G. McDaneld ◽  
T. P. L. Smith ◽  
...  
Keyword(s):  
Animal Research ◽  
Research Center ◽  
The Us ◽  
Meat Animal

scholarly journals Data system design alters meaning in ecological data: salmon habitat restoration across the U.S. Pacific Northwest

Ecosphere ◽  
2019 ◽  
Vol 10 (11) ◽  
Author(s):  
Stephen L. Katz ◽  
Katie A. Barnas ◽  
Monica Diaz ◽  
Stephanie E. Hampton
Keyword(s):  
System Design ◽  
Pacific Northwest ◽  
Habitat Restoration ◽  
Data System ◽  
Ecological Data ◽  
The U.S
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