Animal Nutrition NOtes

Animal Nutrition NOtes - Animal Nutrition What do animals...

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Animal Nutrition What do animals need to live? Animals make energy using: food oxygen Animals build bodies using: food for raw materials  amino acids, sugars,  fats, nucleotides  ATP energy for synthesis Nutritional Requirements Animals are heterotrophs need to take in food Why? Fulfills 3 needs… 1. fuel = chemical energy for production of ATP  2. raw materials = carbon source for synthesis 3. essential nutrients = animals cannot make Elements (N, P, K, Fe, Na, K, Ca. ..), NAD, FAD, etc.  How do animals get their food? Suspension (Filter) Feeders Fluid Feeders Bulk Feeders Substrate Feeders Different Diets, Different Foods All animals eat other organisms Herbivores:  eat mainly plants Carnivores:  eat other animals  Getting and Using Food Ingest = taking in food Digest mechanical digestion breaking up food into smaller pieces chemical digestion breaking down food into molecules small enough to be absorbed into cells enzymes (hydrolysis) Absorb absorb across cell membrane diffusion active transport Eliminate  undigested extracellular material passes out of digestive system Common processes  peristalsis push food along by rhythmic waves of smooth muscle contraction in walls of digestive system
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This note was uploaded on 03/28/2011 for the course BILD 1 taught by Professor Chen during the Winter '11 term at UC Riverside.

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Animal Nutrition NOtes - Animal Nutrition What do animals...

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