Nutrition and Feed Management

Information and tools to assist in managing dairy cattle nutrition and feed management, including resources on forage, silage, pasture, and water needs. Tips on monitoring heifer growth and weaning strategies for heifers and calves.

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Metabolic Profiling
Metabolic Profiling - Articles Articles
A "metabolic profile" is a series of specific analytical tests run in combination and used as a herd-based, rather than individual-based, diagnostic aid. More
Photo credit: Amber Yutzy
Nitrate Calculator Spreadsheet - Tools and Apps Tools and Apps
Automates calculation of nitrate intake from feed and water, suggests ways to limit nitrate intake, and converts expressions of nitrate concentration. More
Feed Value Calculator spreadsheet Feed Value Calculator spreadsheet - Tools and Apps
Calculates value of forages and concentrates using Petersen's constants; based on the price of corn, soybean meal, and average quality alfalfa hay. Feed values can then be compared to market prices. More
Dairy Heifer Diet Formulator - Spreadsheet
Dairy Heifer Diet Formulator - Spreadsheet - Tools and Apps Tools and Apps

Dairy Heifer Diet Formulator - Spreadsheet

Jud Heinrichs, Lucas Mitchell

Choose feeds from the library or enter the composition of feeds on your farm, then balance a diet to meet a targeted growth rate. More
Compared to testing at room temperature, warm colostrum underestimates colostrum IgG and cold colostrum overestimates IgG.
Colostrometer Adjustment Spreadsheet - Tools and Apps Tools and Apps

Colostrometer Adjustment Spreadsheet

Coleen M. Jones, Jud Heinrichs

Adjust readings from a colostrometer to provide the value expected if colostrum was tested at 68°F. More
Feed Management and Delivery Feed Management and Delivery - Articles

Feed Management and Delivery

Robert J. Van Saun, DVM, MS, PhD, Ernest Hovingh, DVM, PhD

A checklist to determine the relative biosecurity risk of feed management and delivery in dairy herds. More
Dairy Risk-Management Education: Managing Income Over Feed Costs
Dairy Risk-Management Education: Managing Income Over Feed Costs - Articles Articles
To remain profitable, producers should be monitoring and making decisions based on their herd's "income over feed costs" (IOFC). More
Toxic Weed: Milkweed
Toxic Weed: Milkweed - Articles Articles

Toxic Weed: Milkweed

Donna Foulk

Primary toxin, galitoxin, is found in all vegetative parts of the plant. Toxins known as cardenolides may be responsible for digitalis-like signs that cause or contribute to death. More
Wet Sieving to Measure Particle Length
Wet Sieving to Measure Particle Length - Videos Videos
In this video Dr. Jud Heinrichs demonstrates wet sieving, used to determine the particle size of high-moisture samples, such as rumen digesta or feces. More
Using the Body Condition Scoring Excel Spreadsheet Series
Using the Body Condition Scoring Excel Spreadsheet Series - Articles Articles
Instructions for the Body Condition Scoring spreadsheet series, used to evaluate body condition in cows and heifers. Spreadsheet series is designed for a scale of 1 to 5. More
Ro-tap Particle Separator
Ro-tap Particle Separator - Videos Videos

Ro-tap Particle Separator

Jud Heinrichs

In this video Dr. Jud Heinrichs demonstrates the Ro-Tap Particle Separator, the method used to develop the concept of physically effective fiber. More
Effects of Calf Feeding Program on First Lactation Performance
Effects of Calf Feeding Program on First Lactation Performance - Articles Articles
A review of the effects of increased milk or milk replacer feeding on milk production. More
Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières
Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières - Articles Articles

Prévention et Contrôle des Problèmes d’aplombs Chez les Vaches Laitières

Virginia A. Ishler, David R. Wolfgang, VMD, MPH DABVP-Dairy, Dave Griswold, Bruno Martin

La santé des aplombs et les boiteries sont des soucis majeurs auxquels les producteurs de lait font face à cause de leur apparition fréquente et des pertes économiques énormes engendrées. More
Penn State Particle Separator
Penn State Particle Separator - Videos Videos
In this video Dr. Jud Heinrichs demonstrates the Penn State Particle Separator, a popular method for on-farm particle size determination. More
Pasteurisierung Mit Hitze töten Pasteurisierung Mit Hitze töten - Articles
Pasteurisierung Pasteurisierte Sperrmilch einen hohen Nährwert für Milchviehkälber. Allerdings muss der Prozess korrekt Ablaufen, da sonst die Keime nicht ausreichend reduziert werden. More
Methods Used to Measure Forage and Ration Particle Size
Methods Used to Measure Forage and Ration Particle Size - Articles Articles
Particle size evaluation tools are described and demonstrated in a series of brief videos. More
Growth Monitor: Compare Heifers to Breed Standards
Growth Monitor: Compare Heifers to Breed Standards - Articles Articles

Growth Monitor: Compare Heifers to Breed Standards

Coleen M. Jones, Jud Heinrichs

Spreadsheet tools for tracking dairy heifer growth in comparison to breed standards. More
Manual for Batch Mix Spreadsheet
Manual for Batch Mix Spreadsheet - Articles Articles

Manual for Batch Mix Spreadsheet

Coleen M. Jones, Jud Heinrichs

Tips and instructions for using the Batch Mix spreadsheet, a simple tool for adjusting the amount fed as the dry matter of forages changes. More
Photo credit: Andrew Sandeen
Managing to Get More Milk and Profit from Pasture - Articles Articles
Grazed pasture represents the cheapest source of nutrients for dairy cows, but managing a pasture system is challenging. More
Photo credit: Shannon Wingert
Importancia y Manejo del Calostro en el Ganado de Leche - Articles Articles
La ternera nace sin inmunidad humoral adecuada y depende casi totalmente de la transferencia pasiva de inmunoglobulinas maternas presentes en el calostro. More
Fat Supplementation with Pasture-Based Systems
Fat Supplementation with Pasture-Based Systems - Articles Articles
Supplementation of fat appears to increase milk production by dairy cows grazing high-quality pastures, but the effect depends on type of fat supplement and stage of lactation. More
Economics of Supplemental Feeding with Pasture-Based Systems
Economics of Supplemental Feeding with Pasture-Based Systems - Articles Articles
Consider milk and feed prices, substitution rates, and expected yield and component responses when deciding how much supplemental feed to offer. More
Dietary Minerals for Dairy Cows on Pasture
Dietary Minerals for Dairy Cows on Pasture - Articles Articles
Pastures are often deficient in several minerals compared to the NRC requirements, and most rations need to be supplemented with concentrated sources of certain minerals. More
Diagnostic des Fievres de Lait et Vaches Couchees
Diagnostic des Fievres de Lait et Vaches Couchees - Articles Articles

Diagnostic des Fievres de Lait et Vaches Couchees

Virginia A. Ishler, Bruno Martin

Cet article inclut causes possibles, symptômes et situation du problème, les formes des fièvres de lait, paramètres sanguins, suggestion de maitrise, balance anion cations. More
Conjugated Linoleic Acid (CLA) in Animal Production and Human Health
Conjugated Linoleic Acid (CLA) in Animal Production and Human Health - Articles Articles
Conjugated linoleic acid (CLA) occurs naturally in ruminant milk fat and meat, but diet changes can affect the amounts. More