Trends in dairy production
Genetics Level of Production Nutrition Herd automation Herd Size Personnel
Fresh Cow Job Description:
Calve without assistance and clean within 12 hours Experience no metabolic disease, no mas
The Basics of Calf Nutrition
Dry cow nutrition? Calving environment Colostrum management Liquid diet consistency and quality Water Calf starter Management
Outline for this section
A brief word about colostrum management. Why do we feed calve
How do we measure?
ADF: Acid detergent extraction.
Residue is extracted with H2SO4and ashedto get lignin value. Subtracting the difference gives you the cellulose value Increase ADF Decrease digestibility
NDF: Neutral detergent extraction with heat
Dry,Transition, Early, Mid-late Lactation. Heifers vs. Older cows?
Cows in the herd? dry cow
Body condition Rest for the rumen
Overview of the lactation cycle
development late gestation
Energy Protein Minerals
.57 - .66 M
Definition: Source of nutrients supplied to the animal resulting in high performance milk production Palatability tastes good particle size, color, smell, no foreign objects, mold Digestibility Maturity of plant cell wall increases
RATION BALANCING: SHORT AND SWEET
MATTER INTAKE REQUIREMENTS PROTEIN AND OTHER NUTRIENTS
FUN WITH MATH!
companies report nutrient concentrations on an air dry basis - 90% DM Forage analyses reported on a DM basis KEEP T
Essential elements of feeding system management
Combine feed and feed delivery resources most suitable to particular farm.
Make decisions before the first cow is fed
Forages - High fiber feeds- Goal
GROW OR PURCHASE? Maximize dry matter yield, nutri