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Lecture 3

ANSC 101 Lecture Notes - Lecture 3: Omnivore, Rumen, Hydrogenation

Animal Science
Course Code
ANSC 101
Kasey Moyes

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Clicker questions:
1. Which animal is considered an omnivore?
Pig, cow, bull, turkey
2. Which species has the best feed conversion ratio?
Cow, salmon, frog, chicken
3. Passage of digestion through the small intestine is as follows
Duodenum jejunum ileum
4. Aquaculture requires careful management regarding which of the following
Water pH, removal of pollutants, dramatic changes in temperature, all of the above
o Single-compartment stomach, i.e. simple stomach
o Ex: pigs, humans, and chickens
o Classic foregut fermenter
o Stomach contains 4 compartments
o Regurgitate
o Ex: cattle, sheep, deer, elk
o Foregut fermenter
o 3 chambered stomach
o Do not regurgitate
o Ex: alpacas, camels, and hippos
Hindgut fermenter
o Non-ruminant
o Fermentation in cecum
o Ex: horses, rabbits, and rodents
**Small cecum indicates a carnivore
Prehensile tongue
Bottom incisors
Pad on top
Molars on grinding
Plant Cell Wall Digestion
Cellulose and hemi-cellulose
o Foregut and hindgut fermenters
Pectin: ruminants/pseudo and non-ruminants
Lignin: indigestible
o Older the plant, the more lignin there is
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