Card Set Information
goes through basic processes, nutrient digestion, rumination and fermentation
Who are ruminants?
most herbivores- good at digesting large amounts of cellulose
Young ruminant diet
milk-first few weeks
feed-after a few weeks
young ruminant rumen:
undeveloped at birth, no microorganisms
When does the rumen start to develop in young ruminants?
partially at 4-6 weeks with gradual solid food added while nursing
butyrate through grains
When is the rumen fully developed?
after 6 months
The mouth of rumen
no upper incisors
have lower incisors
necessary for particle size reduction
The 4 stomach compartments:
What does the reticulum do?
acts as a pacemaker for stomach contractions
site of microbial digestion and volatile fatty acid production
Functions of rumen
food storage and fermentation
steps to rumination
What are the microorganisms involved in fermentation?
bacteria- digest various nutrients
protozoa- prey upon bacteria
yeast- aerobic substrate that good bacteria prefer
fungi- aerobic that aid in cellulose digestion
What is the purpose of the omasum?
regulates passage rate (particle size)
What is the abomasum?
glandular (not as low of a pH ~3.0)
Necessities to feed ruminants
must balance need of microbes and animals
By-products of Anaerobic Fermentation
Microbial Cell Protein
Volatile Fatty Acids
Essential Fatty Acids
Gas and Heat
Benfits of Anaerobic Fermentation
Disadvantage of Anaerobic fermentation
gas production due to extra step in ruminants