EXAM 1 Flashcards
(64 cards)
environmental situation that provokes an adaptive response
Stress
the adaptive response which is a part of maintenance
Strain
Ways to minimize heat stress
provide plenty of water, provide shade, and have good ventilation
T/F: The feed industry is not a major recycler of nutrients and do not use byproducts.
FLASE, they are major recyclers and use the byproducts that would otherwise be thrown away
reduces animal production, reproductive performance, and makes animals more susceptible to disease
Stress
What does the pancreas secrete?
pancreatic juice
- buffers
- enzymes
Where does absorption occur for HINDGUT fermenters?
after the true stomach (colon, cecum)
Where does absorption occur for FOREGUT fermenters?
before the true stomach (reticulum, rumen, abosmasum)
degradation of feed materials into absorbable products
digestion
breaking down large molecules into smaller ones that can be used by the cells in the body
absorption
what does feed processing improve?
absorption
carbohydrates
sugar
starch
cellulose
hemicellulose
fats
fatty acids
monoglycerides
Most important VFA’s
Butyrate
Acetate
Propinate
VFA’s for fat production
Butyrate & Acetate
VFA for glucose production
Propinate
Highly specialized tissue that increase the surface area of the intestines, site for nutrient absorption
Villi
Nonfat-type nutrients go to the _____ and then to the liver
hepatic portal vein
Fat-type nutrients go to the ______, then to the ____ and then to the liver.
- lacteal system
- lymph vessel
as particle size of corn increased _____ was digested in the rumen
more
______ is the major site for absorption of nutrients
small intestine
saliva functions
moisten foods
buffer compounds
enzymes lipase and amylase
forestomach functions
store and delay passage of ingested food
sites of fermentation
abomasum function
has a gastric mucosa
contains HCL producing cells and chief cells that produce protease
