Heifer Raising. Lecture 11 ANS 336 2/21/01. Once A Day Feeding - Milk. Reduces labor? Reduces scours Promotes faster rumen development When a calf drinks milk it forms a curd in the fourth stomach then takes approximately 3-4 hours to totally leave
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Nutrient Requirements- NRC 1999At 1.7 lb/day gain Large Breed
CP includes NPN and True Protein
CP used as Ruminants utilization about the same.
N Content X 6.25 as not all the nitrogen is in the form of protein.
DP - digestible Protein
Amount consume minus the amount in feces.
AP - apparent digestibility
Part of the protein comes from the animal.
DE digestible energy
ME – Metabolizable energy
NEm – net energy Maintenance
Neg - Net energy gain
Nel - Net energy lactationNutrient Terminology
UIP – Undegradable Intake Protein
DIP – degradable intake Protein
MCP- Microbial Protein
BCP Bacterial Protein
New – 2000
RUP – Rumen Undegradable Protein
RDP – Rumen degradable Protein
MP – Metabolizable Protein
True protein absorbed from the intestine (MCP –RUP)Nutrient Terminology Changes - NRC
DMI = BW (2%) + .33 FCM
FCM = (lbs of milk X .4) + (lbs of milk X % Bfat) 15
Maximum Ration NDF = 1.2% of BW
Forage NDF = 0.9 % of BW
Conc. NDF = 0.3 % BW
Must provide: 28 to 30 % of the Total Ration in NDF
19 to 21 % of the Total Ration in ADF