Flashcards in 9a Nutrient Requirements of Working Dogs Deck (10):
What are some types of working dogs?
- guide dogs
- service dogs
- livestock herding dogs
- livestock guarding dogs
- protection dogs
- hunting dogs
- racing dogs
- sled dogs
Muscles are adapted to use more of what nutrient?
- most muscle fibres are highly oxidative
- metabolize more free fatty acids; 2x rate of humans
- use beta oxidation
What do working dogs have a higher requirement for?
What do the nutrient requirements of working dogs depend on?
- stress level
- dog's body composition and temperament
- requirement = maintenance + exercise
Describe the water requirement of working dogs.
- sled dogs: water increases from 1L/d without exercise to 5L/d during 450km race
- greyhounds: dehydration rather before race than after race; cold water bath and access to water immediately after race
Describe the energy requirement of sled dogs and greyhounds.
- sled dogs: at -20 and open wind chill at rest 215 kcal ME x BW ^0.75
- energy for movement proportional to distance traveled rather than speed
Describe the other nutrient requirements of sled dogs
- require high fat, high protein diet
- less minerals and vitamins per unit energy because of higher food intake (rate of increase less steep than rate of increase for energy)
- higher level of antioxidant vitamins due to free radical production in muscle
Describe the nutrient requirements of racing dogs.
- moderately high fat, moderate protein
What is the metabolic switch?
- muscle cells extract fat directly from blood