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Timely Topic Archive
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Certain Carcass and Calving Traits Were Genetically Antagonistic
Previous research has shown that certain carcass traits are genetically correlated, both favorably and unfavorably, with calving traits.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-04-04
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Deposition of Important Fatty Acids in Milk And In Nursing Calf May Be Altered by Supplementation of Dam
Research has shown that increased consumption of certain unsaturated fatty acids can enhance human health. In a Univ. of Wyoming trial, 36 cow-calf pairs were used to evaluate the effect of dietary supplemental fat on the fatty acid profile of milk and calf adipose tissue.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-09-04
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Management of Fall Body Condition of Beef Cows
For each of three years (1997/98, 1998/99, and 1999/00), Alberta Agriculture beef specialists conducted a winter feeding study to determine the effect of fall body condition on winter feed requirements of pregnant beef cows bred to calve in April.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-15-04
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Effects of Weaning Age on Production and Economic Efficiency on an Integrated Cow/Calf—Feedlot System
Over a 3-yr. period, Alberta Agriculture and Univ. of Alberta researchers allotted 240 spring-calving cows (calving date ~ May 1) to one of three weaning management systems.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-19-04
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DO YOU HAVE YUCCA IN YOUR RANGELAND?
Yucca plants, which are also called soapweed by many people, have gotten thick in many rangelands. Following are thoughts on releasing their hold on your grazinglands.
Author: Dr. Bruce Anderson, Professor of Agronomy
Date published: Nov-29-04
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Effects of Organic vs. Inorganic Sources of Copper and Zinc on Performance and Immune Response of Newly Arrived Feedlot Heifers
Texas Tech Univ. researchers conducted two experiments to evaluate the effects of copper (Cu) and zinc (Zn) source on performance, morbidity, and humoral immune response in lightweight, newly arrived beef heifers.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-02-04
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Updated Estrus Synchronization Planner Software
The Iowa Beef Center at Iowa State University in cooperation with the North Central Bovine Reproductive Task Force is pleased to announce the release of the updated version of the Estrus Synchronization Planner Software, Synch04.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-10-04
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Preconditioning Beef Calves
Although preconditioning programs for weaned feeder calves are on the rise, Kansas State Univ. Ag Economist, Kevin Dhuyvetter, cautioned that producers should conduct an economic analysis to make certain that preconditioning can enhance profitability.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-15-04
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Feed Efficiency of Cows on a High Roughage Diet Correlated With Feed Efficiency of Their Progeny
In recent years, Australian, Canadian, and U.S. scientists have conducted a large body of research to evaluate residual feed intake (RFI) (actual DM intake minus expected DM intake) as a measure of feed efficiency in feedlot cattle.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-16-04
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Limit-Fed Diets Containing Rolled Barley for Late-Gestation Beef Cows
In the Northern Great Plains, barley grain may often be a more economical source of energy than hay, as corn is often more economical than hay in the Midwest.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-20-04
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