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Timely Topic Archive
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Impact of Cow Size on Nutrient Needs
Nutrient needs for cows of different body weights are not the same.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-09-06
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Impact of Level of Milk Production on Nutrient Needs
Managing for milk level in your cow herd is kind-of like determining whether the porridge is too cold, too hot, or just right.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Nov-10-06
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Relationship of GeneSTAR Marbling Marker to IMF Deposition and EPD for Marbling
Univ. of Illinois researchers used a total of 192 early weaned Simmental steers to evaluate the relationship of the GeneSTAR marker for marbling to intramuscular fat (IMF) deposition and the expected progeny difference (EPD) for marbling.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-01-06
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Milk EPD an Accurate Indicator of Milk Production and Calf Performance
In a long-term study, Oklahoma State Univ. researchers mated crossbred cows to Angus or Hereford bulls that were either very high or very low for milk expected progeny differences (EPDs).
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-04-06
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Genetic Analysis of Preweaning Gain of the Calf, and Milk Production and Udder Quality of the Dam
USDA scientists at the Miles City, Montana Range Research Laboratory used a large data set from their Line 1 Hereford population to evaluate genetic relationships between preweaning calf gain, milk production, and udder score.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-05-06
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Potential Re-Ranking of Sires for Weaning Weight In Good and Poor Environments
Previous research revealed that heritability estimates for maternal weaning wt. have been shown to be higher in environments with restricted cow feed intake as opposed to environments with less limiting feed resources.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-13-06
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Poor Temperament Adversely Affected Performance and Profit
Mississippi State Univ. researchers used a total of 210 feeder cattle consigned by 19 producers in a “Farm to Feedlot” program to evaluate the effect of temperament on performance, carcass characteristics, and net profit.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-28-06
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Bulls Used in a Large Multiple Sire Breeding Herd Varied Greatly in Calf Output
Little is known about the serving capacity or calf output of bulls in large multiple sire commercial herds.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-15-07
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Genetic Parameters for Growth and Ultrasound Traits in Yearling Bulls and for Carcass Traits in Steers
Univ. of Guelph scientists determined genetic parameters for ten growth and ultrasound traits in 2,172 yearling beef bulls and four carcass traits in 1,031 finished feedlot steers.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-16-07
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Expected Progeny Differences Are Comparable to Realized Progeny Differences
University of Kentucky and University of Florida researchers conducted a summary of many previous studies that compared expected progeny differences (EPDs) with actual realized progeny differences for various beef cattle traits.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-17-07
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