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What are the 6 classifications of nutrients?
- energy (carbs)
- lipids (fats)
Why are carbs important?
primary energy source
Why are lipids (fat) important?
- needed to make fat-soluble vitamins
- 2 to 3x as much energy as glucose
Where are lipids (fat) found?
- vegetable oil
- soybean oil
- rice bran
- fish oil
Why is protein important?
- essential for growth & performance
- needed to make amino acids
What is needed to figure out nutrient requirements?
- body weight (kg)
- physiological status
What are the nutrient requirements for idle horses?
- daily energy to maintain healthy body weight
- maintain moderate BCS
What is a limiting macromineral in idle horses?
What are the nutrient requirements for broodmares?
- provide for fetal development
- keep BCS of 6
- more grain, smaller, more frequent meals
What are the nutrient requirements for growing horses?
- reach genetic potential
- sound development
- high quality forage
- feed formulated for growth
Describe equine digestive system:
esophagus > stomach > small intestine > cecum > large intestine
What makes up the foregut?
stomach & small intestine
What makes up the hind gut?
cecum & large intestine
What breaks down proteins?
What happens in the stomach?
- particle breakdown
- start of protein digestion
What happens in the small intestine?
- enzymatic digestion
- prime site of nutrient absorption
What is lipase?
breaks down lipids
What happens in the cecum?
- microbial fermentation
- microbes produce volatile fatty acids & vitamins B and K
What happens in the large colon?
- VFA synthesis and absorption
- B-vitamin synthesis
What happens in the small colon?
- water re-absorption
- feces development
Where are amino acids absorbed?
Horses are what kind of fermenters?
Where are fat soluble vitamins produced?
Where is most water absorbed?
What has the highest crude fiber?