Symptoms That Occur Through The Body |
|
|
Symptoms |
Possible Cause |
|
Emaciation... |
Off-feed; nutritional deficiencies; lymphoid leukosis; enteritis; gizzard impaction; tuberculosis; unknown |
|
Stunted, uneven growth.... |
Gizzard impaction; bluecomb disease; alfatoxin poisoning; synovitis; contaminated hatching egg |
|
Swellings... |
Ruptured air sac; edema |
|
Twitching, muscular spasm... |
Botulism; infectious bursal disease |
|
Trembling... |
Epidemic tremors; encephalitis (brain damage) |
|
Paralysis... |
Botulism; Marek's disease; arthritis; aflatoxin poisoning; epidemic tremor |
|
Dehydration... |
Acute lack of water; coccidiosis; infectious bursal disease; nutritional imbalance-dietary salts |
|
Nervousness... |
Hysteria; drug intoxication; Newcastle; fungus infection |
|
Lying on breast, legs paralyzed... |
Algae poisoning; acute lack of water; yellow jasmine poisoning; botulism; drug toxicity |
Symptoms Occurring Through The Feathers |
|
|
Symptoms |
Possible Cause |
|
Moist under wing... |
Infectious coryza |
|
Loss of... |
Molting |
|
Deposits at base of shafts... |
Lice or mite eggs |
|
Soiled hackle feathers... |
Infectious coryza, eye infection |
|
Feathers picked... |
Lice; nutritional deficiency-methionine; birds not debeaked |
|
Depigmented... |
Nutritional deficiencies-lysine, iron or folic acid |
|
Broken on upper thigh... |
Self picking |
|
Feather eating... |
Nutritional deficiency-methionine |
Symptoms That Occur Through The Skin |
|
|
Symptoms |
Possible Cause |
|
Pigmentation excessive ... |
Poor production; high pigment intake |
|
Nodules, mainly legs... |
Marek's disease |
|
Nodules over vent... |
Flukes (rare) |
|
Moist, necrotic, edematous... |
Necrotic dermatitis, exudative diathesis |
|
Darkened, purplish... |
Erysipelas; fowl cholera |
|
Crusted areas... |
Erysipelas; scab; gangrenous dermatitis |
|
Scabby hip... |
Self picking, inflicted by other birds |
|
Gangrenous, green... |
Hemmorhage; arthritis; gangrenous dermatitis |
|
Vent irritated... |
Northern fowl mite; lice (occasionally) |
|
Pale... |
Anemia; nutritional deficiencies-iron, copper, or vitamin B12 |
Symptoms That Occur Through The Head |
|
|
Symptoms |
Possible Cause |
|
Swollen, puffy... |
Ruptured air sac; infectious coryza; injury; Newcastle disease |
Symptoms That Occur Through The Comb |
|
|
Symptoms |
Possible Cause |
|
Mottled, red and white margins... |
Frozen |
|
Eruptions, nodules... |
Fowl pox |
|
White, scaly, powdery... |
Favus |
Symptoms That Occur Through The Eyes |
|
|
Symptoms |
Possible Cause |
|
Watery... |
Infectious coryza |
|
Blindness... |
Fowl pox; aspergillosis; Arizona paracolon; paratyphoid |
|
Watery, red, inflamed, closed... |
Laryngotracheitis; ammonia burn; Newcastle disease; nutritional deficiency-vitamin A |
|
Cataracts... |
Epidemic tremor |
|
Crusts on eye lids... |
Nutritional deficiency-vitamin A; fowl pox |
|
Pupil irregular, blindness... |
Marek's disease |
|
Blood in eye... |
Hemorrhagic anemia |
|
Large, swollen... |
Mycoplasma infection |
Symptoms That Occur Through The Face |
|
|
Symptoms |
Possible Cause |
|
Swollen... |
Infectious coryza; Newcastle disease; nutritional deficiency-vitamin A; E. coli |
|
Darkened, purplish... |
Erysipelas; fowl cholera; septicemia; injury |
|
Nodules... |
Fowl pox |
Symptoms That Occur Through The Nostrils |
|
|
Symptoms |
Possible Cause |
|
Discharge... |
Infectious coryza; chronic respiratory disease; infectious bronchitis; influenza |
Symptoms That Occur Through The Mouth |
|
|
Symptoms |
Possible Cause |
|
Pustules... |
Nutritional deficiency-vitamin A |
|
Crusts at margins... |
Nutritional deficiencies-pantothenic acid or biotin |
|
Beak soft, rubbery... |
Nutritional deficiencies-vitamin D or calcium-phosphorus imbalances |
|
White coat over tongue and in mouth... |
Wet form of fowl pox |
|
Ulcers... |
Mycotoxins; chemical injury |
Symptoms That Occur Through The Wattles |
|
|
Symptoms |
Possible Cause |
|
Swollen, bulbous... |
Infectious coryza; fowl cholera |
|
Nodules... |
Fowl pox |
Symptoms That Occur Through The Neck |
|
|
Symptoms |
Possible Cause |
|
Paralysis (limber neck)... |
Botulism; yellow jasmine poisoning |
|
Twisting... |
Newcastle disease; fowl cholera; brain infection; improper injection of Marek's vaccine |
|
Retracted over back... |
Newcastle disease; nutritional deficiency-thiamin |
|
Retracted under breast... |
Nutritional deficency-vitamin E; Newcastle disease |
|
Scabby necrotic areas... |
Improper injection of drugs; other injury |
Symptoms That Occur Through The Legs |
|
|
Symptoms |
Possible Cause |
|
Paralysis... |
Marek's disease; botulism; heat stoke; epidemic tremor; cage layer fatigue; vitamin E deficiency; algae poisoning; yellow jasmine poisoning; acute lack of water |
|
Rough, scaly... |
Fowl pox; scaly leg mite |
|
Bowed, weak... |
Nutritional deficiency-vitamin D; osteodystrophy |
|
Bone bends... |
Nutritional deficiency-vitamin D |
|
Joint swelling... |
Infectious synovitis; paratyphoid; pullorum; zinc deficiency; staphylococcosis; tenosynovitis; arthritis |
|
Tendon at hock displaced... |
Perosis (nutritional deficiency-manganese or choline) |
|
Stilted gait... |
Tenosynovitis |
|
Shank depigmented... |
Nutritional deficiency-vitamin A; coccidiosis; any low grade slow disease (for any length of time) |
|
Toes twisted... |
Genetic |
Symptoms That Occur Through The Feet |
|
|
Symptoms |
Possible Cause |
|
Joints fixed... |
Tenosynovitis |
|
Swollen foot pad... |
Infectious synovitis; bumblefoot |
|
Toes curled... |
Nutritional deficiency-riboflavin; genetic; management deficiency |
|
Foot pad cracked, dermatitis... |
Nutritional deficiency-biotin or pantothenic acid; management deficiency |
|
Bird walks on toes... |
Tenosynovitis |
|
Toes twisted... |
Genetic |
Symptoms That Occur Through The Droppings |
|
|
Symptoms |
Possible Cause |
|
Profuse... |
Enteritis; excess roughage in diet |
|
Bloody... |
Cecal coccidiosis; Newcastle disease |
|
Green... |
Feed intake low; bile not diluted |
|
Sulfur yellow... |
Blackhead |
|
Light yellow or yellowish-green... |
Fowl typhoid; fowl cholera |
|
Foamy... |
Intestinal parasites (protozoa) |
Symptoms That Occur During Egg Production |
|
|
Symptoms |
Possible Cause |
|
Sudden severe drop ... |
Newcastle disease; infectious bronchitis; laryngotracheitis; influenza-A, mycotoxin, mismanagement (no lights, feed, or water) |
|
Unsatisfactory... |
Infectious coryza; fowl cholera; chronic respiratory diseases; diet deficiencies; gizzard impaction; fowl pox; hepatitis; lice; mites; ascarids; capillaria; lymphoid leukosis; coccidiosis; enteritis; pullorum; fowl typhoid; aflatoxicosis; adenovirus infection; toxins |
|
Egg wrinkled, depigmented... |
Necrotic enteritis; infectious bronchitis |
|
Production pause... |
Epidemic tremor |
|
Poor shell quality... |
Newcastle disease; infectious bronchitis; adenovirus infection; diet deficiency; T-2 fusariotoxin |
Death Occurring In Fowl |
|
|
Symptoms |
Possible Cause |
|
Instant, few or no prior |
Aortic rupture; acute lack of water; fowl cholera; overheated, fatty liver hemorrhagic syndrome |
|
High mortality-producing diseases... |
Fowl cholera; erysipelas; exotic Newcastle disease; acute coccidiosis; aflatoxin; botulism; poison; fatty liver hemorrhagic syndrome |
