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Timely Topic Archive
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Sampling and Packing Forages for Testing
It is important that samples closely resemble the entire "lot" of forage. Each sample must represent only one "lot" of forage. A "lot" of forage consists of forage harvested from one field at the same cutting and maturity.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-01-05
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Ways to Analyze Forages for Quality
Until recently, nutrient analyses were most commonly done by chemically reacting or extracting important compounds in a laboratory and determining their amount in the feed.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Dec-09-05
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What Are The Component of a NIR Nutrient Analysis?
Percent Dry matter (DM) is the percentage of feed that is not water. In contrast, moisture is a measure of the amount of water in the feed on an "as is" or "as fed" basis, and is important because moisture dilutes the concentration of all nutrients.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-03-06
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What Nutrients Should Cow/Calf Producers Test Their Forages For?
The primary nutrients that cow/calf producers should analyze a forage for are moisture (or dry matter), percent crude protein, and a measure of energy (TDN, NEm or NEg). Because beef cow diets are typically balanced for energy using TDN, get an estimate of TDN.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-04-06
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Managing Nitrates Beef Cow Diets
High nitrates could be a problem for cattle producers planning to feed or graze annual forages such as corn, cane, grain sorghum, millet and Sudangrass.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-09-06
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Management of First-Calf Females
Some feel first-calf heifers should be restricted in feed prior to calving to decrease the size of the newborn calf.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Jan-30-06
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Nutrient Needs and the Young Beef Female
Focus on feeding programs that meet the nutrient requirements for the young cow. These requirements are well defined in the 1996 Nutrient Requirements of Beef Cattle.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Feb-02-06
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Selection for High Marbling or High Retail Product Yield Did Not Affect Reproduction Traits in First-Calf Heifers
The objective of this Montana State Univ. study was to evaluate the impact of selection for high marbling or high retail product yield on reproduction traits and calf performance of first-calf heifers in a herd of western range cattle.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Feb-10-06
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Use of DNA Tests in Beef Cattle Selection
Dr. Wade Shafer, American Simmental Assoc., recently presented an interesting paper at the Animal Science Annual Meeting on the use of DNA technology in genetic selection.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Feb-13-06
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Direct Selection for An Economically Relevant Trait Versus Selection for an Indicator Trait
A paper by Dr. Dorian Garrick at the 2005 Animal Science Annual Meeting pointed out that some traits for which EPDs are available (e.g., calving ease and marbling score) are economically relevant traits (ERTs) that directly affect income or expenses.
Author: Dr. Rick Rasby, Professor of Animal Science
Date published: Feb-20-06
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