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Environmental Physiology and Animal Health (Thermoregulation (Convection-…
Environmental Physiology and Animal Health
Thermoregulation
Convection- air movement transfer heat
Radiation- Objects not touching
Conduction- objects touching
Evaporation- Heat loss by skin and respiratory tract
Thermoneutral Zone- Ambient temp ranges
Cold weather= animal eats more
Decrease % protein
Warm weather= animal eats less
Increase % protein
Add Na, Cl, K
Added coat hair lowers UCT and LCT
Infectious agents
Bacteria- Not specific in mechanism- antibiotics help control it
Protozoa- Host specific, hinder digestion and absorption, anticoccidial drugs
Virus- infects host cell, elimination of vectors and vaccinations help get rid of it
Fungi- difficult to treat, avoid molds
Parasites
Internal
Roundworm
Produce and leaves eggs in feces, can block intestines
Tapeworms
Head goes in intestinal lining and breaks off into segments, eggs develop from segments
Anthelmentica is used to treat internal parasites
External
Lice, Mites, heel fly (lays eggs on cattle), facefly=pinkeye
Antiseptic= on skin, disinfectant= on surface