Flashcards in Nutrition, Biosecurity, Bodyweight and Fat Scoring Deck (7)
What is food/diet?
•Anything edible/everything animal eats.
What is a ration/meal?
•Sequence and quantity of food/eating patterns of individuals/herds on daily basis.
What is a nutrient?
•Chemical component in food that has specific structural/functional activity in body.
What are the six major classes of nutrients? (8)
(Organic - C, H, O, N)
Macro: nutrient used to build tissue.
•Protein - AA ---> proteins ---> muscles, hormones, from meat + cereals/forages.
•Fats/oils - fatty acids + glyercerol ---> lipids ---> cell membranes, signalling molecules, from oil seed grains - limited use for ruminants.
•Carbhoydrates (100% from plant fibre for herbivores, omnivores +carnivores CHO from starch in seeds/grains) - glucose/volatile fatty acids ---> glycogen ---> energy.
Micro: for processes + enzymes
•Vitamins - metabolism, from fresh grass, fresh meet + compound feeds.
•Minerals, macro trace - metabolism from plants (dependent on area), cereals (low), meat.
•Water - maintains hydration, from water + water in feeds.
What is protein needed for? (4)
•Production of young.
•Output products e.g. milk, eggs and wool.
Give some examples of macro minerals. (7)
•Calcium - role in dairy cows especially transition cows, prevents hypocalcemia (produce less colostrum and milk).
•Phosphorus - consider ratio with calcium.
•Sodium - cell transport, Na^+/K^+ pump, active transport, most horses need supplementing.
•Chlorine - dietary cation balance.
•Magnesium - cow + sheep nutrition.
•Potassium - high in forages, challenge to reduce around milking time, keeps calcium in bones rather than milk.