1	ANIMAL SCIENCE Introduction to Agriculture
2	What is Animal Science? Explain Animal Well-Being. Describe the Body Structure of Animals. Describe the Anatomy and Physiology of Animals.
3	Why study Animal Science? Making Better Sheep More Milk from Fewer Cows Preventing Poultry Diseases OVERALL, we want to produce healthy animals for production and companion purposes.
4	Animal Well-Being Animal Well-BeingàState of an animal’s health and comfort Providing food, water and other nutrients that meet the needs of animals Providing shelter. Never ABUSING animals. Providing health care.
5	Animal Well-Being Humanely slaughtering animals. Holding reasonable expectations for an animal (speed, milk production, work) Preventing unwanted reproduction (have your pets spayed or neutered) Constructing barns, fences, and other confinements Transporting animals carefully. Restraining an animal properly.
6	Animal Well-Being What about Euthanasia? àAct of killing an animal to relieve it of suffering. REMEMBER that most animal keepers provide a far better environment than the animal would have if it were not domesticated.
7	ANIMALS and their BODY FUNCTIONS Animals members of the Animalia kingdom. 1. Made up of cells. 2. Can move about. 3. Get food from other sources.
8	ANIMALS and their BODY FUNCTIONS--Invertebrates 97% of all animals are invertebrates! Includes earthworms, spiders, butterflies, snails, and lobsters.
9	ANIMALS and their BODY FUNCTIONS--Invertebrates Arthropods Have EXOSKELETONS (hard outer covering) Made of Chitin and Protein. Chitinàlike human fingernails Arthropods MOLT—shed the exoskeleton
10	TYPES of ARTHROPODS Crustacea—Aquatic animals with exoskeletons READ p. 288 Crustacea Uniramia—insects, millipedes, and centipedes READ p. 289 Uniramia Chelicerata—ticks, mites, spiders, and scorpions READ p. 289 Chelicerata
11	ANIMALS and their BODY FUNCTIONS--Invertebrates Annelids Contains earthworms, blood-sucking leeches, etc. Earthworms—beneficial to the soil Leeches—can suck on human wounds to remove the infected blood
12	ANIMALS and their BODY FUNCTIONS--Invertebrates Mollusks Mollusk—invertebrate animal with a soft body and a hard shell Slugs and octopuses—soft bodies and no shell Oysters, snails, clams, mussels, and abalone—hard shells
13	ANIMALS and their BODY FUNCTIONS--Vertebrates Animals with backbones!! FISH BIRDS MAMMALS
14	ANIMALS and their BODY FUNCTIONS--Vertebrates Animals with backbones!! FISH 25,000 species of bony fish Most common in North America—Catfish Trout, tilapia, salmon, and others are aquafarmed. Three body parts—head, trunk, and tail ECTOTHERMIC—body temperature is regulated by the temperature of the water
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17	ANIMALS and their BODY FUNCTIONS--Vertebrates Animals with backbones!! BIRDS AVES—class Over 9,000 species of birds. Bodies covered with feathers. Bones are hollow and thin, which makes birds lightweight so they can fly. Lay fertile eggs that hatch.
18	ANIMALS and their BODY FUNCTIONS--Vertebrates Animals with backbones!! Mammals Include animals important for food and fiber! MAMMAL—vertebrate that reproduces by the mating of the male and female of the same species MAMMARY GLANDS—milk-producing glands by which newborns feed Mammals have hair, a four chambered heart, a lower jawbone with teeth, and a well-developed brain. ENDOTHERMIC—bodies maintain a certain temperature
19	ANATOMY AND PHYSIOLOGY AnatomyàStudy of the form, shape, and appearance of an animal. Gross Anatomyàstructures that can be seen with the human eye Microscopic Anatomyàstructures that need to be magnified to be seen (cells, etc.) PhysiologyàStudy of the functions of the cells, tissues, organs, and other body systems