small ruminant nutrition Flashcards
goat prehension
-using mouth and tongue
-goats are browsers
what teeth do goats have
-no upper incisors
-upper and lower molars
-tooth development can only tell age up to 4 years
characteristics of browsers
-smaller foregut
-larger abomasum
-wider mouth opening and longer tongue
-more rapid flow of food through GI tract
esophagus
-mouth to stomach
-bidirectional-allows regurgitation to chew cud
-eructation caused by gases from fermentation in the rumen
neonatal ruminants diet
-newborn kids cant digest starch/sugars
-rumen, reticulum, omasum are underdeveloped
-their diet is milk (would rot in rumen bc fermentation)
what is the esophageal groove
a reflexive tube that is stimulated by suckling that runs from the esophagus directly into the abomasum to properly digest milk
-kids are monogastric until GI tract develops further
reticulum
-honeycomb/ hardware stomach
-5% of the stomach
-microbial digestion and fermentation
-collects dense objects - hardware disease
rumen
-papillae increase absorption
-80% of stomach (largest)
-3-6 gallon capacity
- microbial digestion and fermentation
-Starch/fiber——> VFA (provides 80% required energy)
-located on left side of body
omasum
-leaflets and spiky papillae (folds increase absorption bc surface area)
-7% of stomach
-1/4 gallon capacity
-water absorption
- known and eaten as “tripe”
abomasum
-muscular folds
-acidic digestion using HCl
-8% of stomach
-1 gallon capacity
-true stomach (breaks down feed proteins before they enter small intestine
duodenem
-feed is mixed with enzymes from the pancreas and bile from the gallbladder
jejunum
inside walls absorb nutrients
ileum
absorbs bile acids and vitamin B12
large intestine
-cecum, colon, rectum
-furthers water and nutrient absorption
-undigested matter is transformed into fecal pellets and expelled from the body
-33m long
what is the ruminant diet?
-water
-concentrates (pellet grain: protien) (corn: energy)
-roughage (1st cut hay, 2nd cut hay, pasture)
-supplements (salt blocks/minerals, vitamins, drugs)
who is grain given to?
-Does and Bucks when breeding (flushing)
-3rd trimester and lactating does
- low BCS
who is 2nd cut hay given to?
-3rd trimester does
-lactating does
-breeding bucks
-kids/yearlings