feeding dairy cows Flashcards
cows get most of their energy through the rumen wall by absorbing volatile fatty acids produced by
bacterial fermentation of the feed.
a majority of the cows protein needs are supplied by
microbial protein as result of growth of bacterial mass in the rumen
a feeding program must include:
nutrient needs, available feed, feed delivery system, annd the operation of the dairy as a whole.
early lactation
increasing drymatter intake, avail rumen acidosis
requires protein
7-70 days
peak production
max dry matter intake
high energy density, high protein, high bypass protein
70-140 days
mid-llate lactation
nutrient intake restores body condition lostin early lactation
140-end
dry period
higher forage
low enerrgy density
low calcium, acidifying diet
excersize