VETN 211B: Digestion, Absorption, and Energy Balance

Why would reproductive status affect energy requirements?

Decrease in hormones and activity levels

What does increased fat lead to?

Increased palatability (?)

What are voluntary oral intake factors?

• Number of animals being fed together

• Smell of food

• Frequency of meals

What are examples stress affecting thermogenesis?

• Change in temps

• Emotional stress :(

• Alterations in food intake

What is voluntary muscular activity affected by?

Duration and intensity

RER accounts for what kind of energy?

Obtaining, digesting, and absorbing nutrients

What is something that is hydrolyzed to glycerol, free fatty acids, and are some monoglycerides and diglycerides?

Fats

Negative energy balance is when…

Caloric intake is less than energy expenditure

What is broken down to simple sugars - glucose, galactose, and fructose?

Carbs

Voluntary muscular activity accounts for how much total energy expenditure?

30%

Where does absorption of water and electrolytes take place in?

Colon - where waste turns into solid poop

What are lipase, amylase, and peptidase?

They are enzymes that break up proteins, carbs, and fats in the small intestines

What is manual digestion?

Physical mastication, mixing and movement of food through the GI tract

What are the two types of digestion?

1. Mechanical - chewing

2. Chemical - enzymes

What are some factors that can affect RER?

• Sex

• Reproductive status

• Thyroid and autonomic nervous system tunfciont

What is positive energy balance?

Caloric intake is greater than energy expenditure

What taste do dogs prefer?

Sweet tastes

What is the degree of body heat production based on?

Meal size and nutrient composition

What does increased meal frequency lead to?

Increase energy loss through dietary thermogenesis

What does the liver break down?

Amino acids, glycogen, and fats

What is chemical digestion?

Splitting the chemical bones of complex nutrients through enzymes (enzymatically catalyzed hydrolysis)