Principles of Animal Diseases Animal Science II

Causes 1.Infectious Caused by _____________________ 2.Noninfectious –Faulty ________________ –_____________ disorder –_________________ –____________ substance –_________________ defects __________ defects

Cattle Brucellosis –Abortions in last ______ of pregnancy –_______________ retention –Sterility –Animal must be ______________ Shipping fever –___________, _____________, fever, discharge –Common in ____________ animals –Shipping _________________ –____________ and ____________ drugs

Swine Transmissible gastroenteritis (TGE) –_____________ (highly contagious) –_______ mortality in young _______ –______________, _____________ –_________, yellow or green _______ –Drugs and vaccines _______ effective

Swine Pseudorabies –__________ –_____________, vomiting, convulsions, _______________ –Sudden death in young pigs _______ after symptoms appear –Drugs and vaccines _______ effective

Swine ___________________ Cholera (eradicated in the US) ______________ –Drugs for drinking water Leptospirosis __________ Mycoplasmal pneumonia _______________

Poultry ___________ rupture –Male ________________ –8 to 20 weeks –_______________ to death –Control Lower-energy _____________ Low-level use of tranquilizers

Poultry Newcastle –___________________ –Gasping for _____, ____________, breathing difficulty, tremors, paralysis –No known ___________ Avian pox (Fowl pox) –____________ –Yellow ____________ in mouth and eyes –Scabs around the _______ –No known cure

Poultry Cocidiosis –Controlled by ______________ ______________ Fowl cholera _____________ Antibiotics

Treatment Prevention is the best way to control diseases –_____________________ –___________________ –____________________ –_____________________ –________________________

Parasites Objective –Describe the internal and external parasites of livestock and poultry

Parasites External –___________ bloodsuckers –___________ mange –___________ Biting bloodsuckers

Parasites External (continued) –_____________ Screwworm in larva stage –__________ fly Cattle grub –____________ fly Smallest, bloodsucking species –Horsefly, housefly, stable fly

Parasites Internal –____________________ Stomach worms ______________ Bloodworms _______________

Parasites Internal (continued) –_________________ Broad tapeworms Beef or pork tapeworm –_________________

Parasite Problems __________loss and loss of gain –Most costly excluding death Major external parasite of swine –___________ and ____________ External parasites of poultry –Lower production by sucking _______

Parasite Problems Heel Fly larva or Cattle grubs –Greatest _____________ loss to cattle –Lower rate of ___________ –Damage hides and ___________

Parasite Problems Major internal parasite of poultry –Several types of ___________ Roundworm –Most damage to ________ by internal parasites

Controlling Parasites Prevention –Most effective Chemicals for external parasites –_____________ insecticides that spread throughout the body is most effective Cattle grubs

Controlling Parasites Deworming pigs –Sows and guilts ____ ___________ before farrowing –Protects _____________

Controlling Parasites Poultry Houses –Mites, bedbugs, fowl ticks hide in _____________ –Emerge at _____________ –Cracks and crevices must be ______________

Controlling Parasites Poultry –Little problems with ___________ Confinement housing offers protection Wire cage

Controlling Parasites ______________, ______________, ____________, and ______________ methods are used to reduce loss in poultry and livestock