Presentation on theme: "Animal Digestion and Nutrition"— Presentation transcript:
1 Animal Digestion and Nutrition Competency: Analyze the parts and functions of the digestive system of farm animals
2 RuminantsObjective: Describe the function and major parts of the digestive system of ruminants.
3 Ruminant Animals Animals with complex digestive systems Capable of digesting material with a high fiber concentrationUses microbial fermentationCattleSheepGoatsDeer
4 Ruminant Digestive System RuminantsRuminant Digestive System
5 Parts and Functions Mouth Esophagus Four Compartment Stomach Bites and chewsEsophagusConnectionFour Compartment StomachRumenReticulumOmasumAbomasum85% of the capacity
6 Parts and Functions Ruman Largest of the four parts “room-in-it” Filled with bacteriaConverts large amounts of roughage to amino acidsFact!!!!The average cow rumen can hold over 160 liters (40 gallons)
9 Ruman Microbe The large microbe is a type of protist The creature that looks like a tadpole attached to the side of the protist is a fungal sporeThe smaller, rod-shaped organism lining the underside of the protist are bacteria.
10 Parts and Functions Reticulum Omasum Abomasum Compartment where liquid goesHoneycomb in structureOmasumGrinds and squeezesRemoves some liquidAbomasumTrue stomachEnzymes and acids
11 Parts and Functions Small Intestine Partially digested feed is mixed BilePancreatic juiceIntestinal juiceMost of the food nutrient is absorbedVilli or Papillae
12 Parts and Functions Large intestine Main function is to absorbed water Add mucus to undigested feedFeces
13 Non-RuminantObjective: Describe the function and major parts of the digestive system of non-ruminants.
14 Non-Ruminant Simple digestive system (Monogastric) Feed must be highly quality concentratesCannot digest large amounts of fiberHumanDogsCatsRabbitsPigsHorses????
15 Non-Ruminant Parts & Functions MouthEsophagusStomachEnzymes acts on feedChurns and mixesSmall intestineLarge intestine
16 Non-Ruminant Parts & Functions Accessory systemLiverProduces bile that acts on fatPancreasProduces insulinAnusEnd of the digestive tract
17 Simple Digestive System MonogastricSimple Digestive System
18 Poultry Digestive Systems Objective: Describe the function and major parts of the digestive system of non-ruminants.
20 Poultry Digestive Systems Mouth or beakCan not chew foodEsophagusConnects mouth to cropCropStores feed
21 Poultry Digestive Systems GizzardCrushes feedContains grit and gravelMixes feed with digestive juicesLiverSmall and Large IntestineVentRemoves solid and liquid waste
22 Inspecting Animal Digestive Systems EsophagusTube like structureStomachPouch with undigested feedLiverLarge brown organ beneath the stomach or crop
23 Inspecting Animal Digestive Systems Small intestineLong tubeGray colored partially digested feedLarge intestineLarge relatively short compartmentContains fecal material
24 NutrientsCompetency: Distinguish the functions and sources of feed nutrients for farm animals
25 Groups of NutrientsObjective: Identify the six major groups of nutrients
26 Carbohydrates Composed of sugar, starches, cellulose and lignin Provide energy and heatMake up the largest quantity of livestock feedCarbonHydrogenOxygen
27 Fats and Oils 2.25 times the energy value of carbohydrates At body temperature fat are solids and oils are liquidExample: cooking lardExtra carbohydrates are stored as fatsCarbon, hydrogen, oxygenCarriers fat-soluble vitamins
28 Proteins Organic Major component of muscles and tissues Made up of amino acidsContinuously needed to replace dying body cellsYoung animals need large amounts for growthOrganic
29 Vitamins Organic Needed in small quantities Helps regulate body functionsDesignated by lettersA,B,C,D,E,KSources:Naturally found in feedFeed additives made from animal by-productsMade by the body itselfOrganic
30 Minerals Needed in small amounts Regulates body functions Calcium, phosphorus, sodium, etc.Regulates body functionsProvide growth for:BoneTeethTissueExample: calcium is needed in poultry for eggshell development
31 Water Makes up 40% to 60% of the animals body Dissolves other nutrients and helps carry them to parts of the body