Ruminant Digestion

How many compartments does a ruminant stomach have?

• Three

• Four

• Five

• Two

What is the main energy source for cows produced by rumen microbes?

• Glucose

• Volatile fatty acids

• Carbohydrates

• Proteins

Tags

NGSS.MS-LS1-7

Which stomach compartment is known as the 'true stomach'?

• Reticulum

• Rumen

• Omasum

• Abomasum

What allows milk to bypass the rumen and directly enter the abomasum in calves?

• Digestive enzymes

• Microbial action

• Rumen contraction

• Esophageal groove

How many times the length of the animal is the small intestine approximately?

• 40 times

• 10 times

• 20 times

• 30 times

What is the main function of the large intestine in the digestive system?

• Enzyme production

• Nutrient absorption

• Water absorption

• Protein synthesis

How much saliva can a cow's salivary glands produce daily?

• 50 to 80 quarts

• 20 to 40 quarts

• 10 to 30 quarts

• 90 to 120 quarts

What is the pH range that saliva helps maintain in the rumen for optimal digestion?

• 7.0 to 8.0

• 4.5 to 5.5

• 5.5 to 6.5

• 6.2 to 6.8

Which vitamins do rumen microbes produce?

• Vitamin C and D

• Vitamin A and E

• Vitamin K and B vitamins

• Vitamin B12 and Folic acid

What percentage of the cow's energy is provided by VFAs?

• 50 to 70 percent

• 30 to 50 percent

• 70 to 90 percent

• 20 to 40 percent

Tags

NGSS.HS-LS2-4