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ruminant species examples
cow, sheep, goat, deer, bison/buffalo
how many ruminant stomach compartments
4
names of compartments
rumen, reticulum, omasum, abomasum
rumen functions
churns/mixes, fermentation (VFAs), absorption
most prevalent microbe in the rument? bacteria, protozoa, or fungi?
bacteria
we want our calves to be
TALL and LEAN
normal bpm calves
80-100/min
normal respiratory rate calves
20-40/min
age at puberty cows
8-12 months
age at first calving
2 years (24 months)
length of estrus cows
24-48 hours
estrous cycle cows
21 days
time of ovulation cows
12-24 hours after onset of estrus
length of gestation cows
275 days
length of lactation cows
305 days
average milk production
2700 gallons (23000-23500 lbs)
dry period
60 days
calving interval (lactation length + dry period)
365 days/1 yr
mature cow weight
1500 lbs
calf weight at birth
80-100 lbs
TPR
temperature, pulse, respiration
most common breed of dairy cow
holstein (black and white or red and white)
Note
Flashcard