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Diseases poultry diagnosis_symptoms
 

Diseases poultry diagnosis_symptoms

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    Diseases poultry diagnosis_symptoms Diseases poultry diagnosis_symptoms Document Transcript

    • POULTRY DISEASE DIAGNOSIS BASEDON SYMPTOMSPoultry diseases and maladies produce a wide variety of symptoms and lesions on variousparts of the body. Many of the causes and diseases seen on the following body parts ororgans is listed. Clicking on the body part or organ will link to some of the more commoncauses and ultimately to discussion of many related diseases, causes, and treatments.EXTERNAL BODY PARTS OR CONDITIONS• Body• Feathers• Skin• Head• Comb• Eyes• Face• Nostrils• Mouth• Wattles• Neck• Legs• Feet• Droppings• Egg Production• DeathINTERNAL BODY PARTS WITH LESIONS• Subcutaneous Tissue
    • • Muscle• Legs• Trachea (Windpipe)• Lungs• Air Sacs• Crop• Proventriculus• Gizzard• Intestines• Cecal Pouches• Ovary• Bursa• Heart• Liver• Kidneys• Ribs• Body CavityEXTERNAL SYMPTOMS FORDIAGNOSING POULTRY DISEASESBODYSymptom Possible CauseEmaciation...Off-feed; nutritional deficiencies; lymphoid leukosis; enteritis;gizzard impaction; tuberculosis; unknownStunted, uneven growth....Gizzard impaction; bluecomb disease; alfatoxin poisoning;synovitis; contaminated hatching eggSwellings... Ruptured air sac; edemaTwitching, muscular spasm... Botulism; infectious bursal diseaseTrembling... Epidemic tremors; encephalitis (brain damage)
    • Paralysis...Botulism; Mareks disease; arthritis; aflatoxin poisoning; epidemictremorDehydration...Acute lack of water; coccidiosis; infectious bursal disease;nutritional imbalance-dietary saltsNervousness... Hysteria; drug intoxication; Newcastle; fungus infectionLying on breast, legs paralyzed...Algae poisoning; acute lack of water; yellow jasmine poisoning;botulism; drug toxicityFEATHERSSymptom Possible CauseMoist under wing... Infectious coryzaLoss of... MoltingDeposits at base of shafts... Lice or mite eggsSoiled hackle feathers... Infectious coryza, eye infectionFeathers picked... Lice; nutritional deficiency-methionine; birds not debeakedDepigmented... Nutritional deficiencies-lysine, iron or folic acidBroken on upper thigh... Self pickingFeather eating... Nutritional deficiency-methionineSkinSymptom Possible CausePigmentation excessive ... Poor production; high pigment intakeNodules, mainly legs... Mareks diseaseNodules over vent... Flukes (rare)
    • Moist, necrotic, edematous... Necrotic dermatitis, exudative diathesisDarkened, purplish... Erysipelas; fowl choleraCrusted areas... Erysipelas; scab; gangrenous dermatitisScabby hip... Self picking, inflicted by other birdsGangrenous, green... Hemmorhage; arthritis; gangrenous dermatitisVent irritated... Northern fowl mite; lice (occasionally)Pale... Anemia; nutritional deficiencies-iron, copper, or vitamin B12HeadSymptom Possible CauseSwollen, puffy... Ruptured air sac; infectious coryza; injury; Newcastle diseaseCombSymptom Possible CauseMottled, red and white margins... FrozenEruptions, nodules... Fowl poxWhite, scaly, powdery... FavusEyesSymptom Possible CauseWatery... Infectious coryzaBlindness... Fowl pox; aspergillosis; Arizona paracolon; paratyphoid
    • Watery, red, inflamed, closed...Laryngotracheitis; ammonia burn; Newcastle disease; nutritionaldeficiency-vitamin ACataracts... Epidemic tremorCrusts on eye lids... Nutritional deficiency-vitamin A; fowl poxPupil irregular, blindness... Mareks diseaseBlood in eye... Hemorrhagic anemiaLarge, swollen... Mycoplasma infectionFaceSymptom Possible CauseSwollen...Infectious coryza; Newcastle disease; nutritional deficiency-vitaminA; E. coliDarkened, purplish... Erysipelas; fowl cholera; septicemia; injuryNodules... Fowl poxNostrilsSymptom Possible CauseDischarge...Infectious coryza; chronic respiratory disease; infectious bronchitis;influenzaMouthSymptom Possible CausePustules... Nutritional deficiency-vitamin ACrusts at margins... Nutritional deficiencies-pantothenic acid or biotin
    • Beak soft, rubbery...Nutritional deficiencies-vitamin D or calcium-phosphorusimbalancesWhite coat over tongue and inmouth...Wet form of fowl poxUlcers... Mycotoxins; chemical injuryWattlesSymptom Possible CauseSwollen, bulbous... Infectious coryza; fowl choleraNodules... Fowl poxNeckSymptom Possible CauseParalysis (limber neck)... Botulism; yellow jasmine poisoningTwisting...Newcastle disease; fowl cholera; brain infection; improper injectionof Mareks vaccineRetracted over back... Newcastle disease; nutritional deficiency-thiaminRetracted under breast... Nutritional deficency-vitamin E; Newcastle diseaseScabby necrotic areas... Improper injection of drugs; other injuryLegsSymptom Possible CauseParalysis...Mareks disease; botulism; heat stoke; epidemic tremor; cage layerfatigue; vitamin E deficiency; algae poisoning; yellow jasminepoisoning; acute lack of water
    • Rough, scaly... Fowl pox; scaly leg miteBowed, weak... Nutritional deficiency-vitamin D; osteodystrophyBone bends... Nutritional deficiency-vitamin DJoint swelling...Infectious synovitis; paratyphoid; pullorum; zinc deficiency;staphylococcosis; tenosynovitis; arthritisTendon at hock displaced... Perosis (nutritional deficiency-manganese or choline)Stilted gait... TenosynovitisShank depigmented...Nutritional deficiency-vitamin A; coccidiosis; any low grade slowdisease (for any length of time)Toes twisted... GeneticFeetSymptom Possible CauseJoints fixed... TenosynovitisSwollen foot pad... Infectious synovitis; bumblefootToes curled... Nutritional deficiency-riboflavin; genetic; management deficiencyFoot pad cracked, dermatitis...Nutritional deficiency-biotin or pantothenic acid; managementdeficiencyBird walks on toes... TenosynovitisToes twisted... GeneticDroppingsSymptom Possible CauseProfuse... Enteritis; excess roughage in diet
    • Bloody... Cecal coccidiosis; Newcastle diseaseGreen... Feed intake low; bile not dilutedSulfur yellow... BlackheadLight yellow or yellowish-green... Fowl typhoid; fowl choleraFoamy... Intestinal parasites (protozoa)Egg ProductionSymptom Possible CauseSudden severe drop ...Newcastle disease; infectious bronchitis; laryngotracheitis;influenza-A, mycotoxin, mismanagement (no lights, feed, or water)Unsatisfactory...Infectious coryza; fowl cholera; chronic respiratory diseases; dietdeficiencies; gizzard impaction; fowl pox; hepatitis; lice; mites;ascarids; capillaria; lymphoid leukosis; coccidiosis; enteritis;pullorum; fowl typhoid; aflatoxicosis; adenovirus infection; toxinsEgg wrinkled, depigmented... Necrotic enteritis; infectious bronchitisProduction pause... Epidemic tremorPoor shell quality...Newcastle disease; infectious bronchitis; adenovirus infection; dietdeficiency; T-2 fusariotoxinDeathSymptom Possible CauseInstant, few or no priorsigns...Aortic rupture; acute lack of water; fowl cholera; overheated, fattyliver hemorrhagic syndromeHigh mortality-producingdiseases...Fowl cholera; erysipelas; exotic Newcastle disease; acutecoccidiosis; aflatoxin; botulism; poison; fatty liver hemorrhagicsyndrome
    • INTERNAL SYMPTOMS FORDIAGNOSING POULTRY DISEASESSubcutaneous TissueSymptom Possible CauseSmall (no.6 shot size) nodules... Subcutaneous mite (rare)Excess Fluid... Salt poisoning; edema; exudative diathesis; anemiaAir under skin... Ruptured air sac; injury or infection of skinMuscleSymptom Possible CauseCongested (as though cooked)... Septicemic disease; improperly bledHemorrhages...Hemorrhagic anemia; erysipelas, crotolaria; mycotoxicosis; otherpoisoning; inclusion body hepatitis; infectious bursal disease; injuryDehydrated... Acute lack of water; coccidiosisTumors... Mareks diseaseLegsSymptom Possible CauseBone bends... Nutritional deficiency-vitamin DBone thickened, enlarged...Lymphoid leukosis (osteopetrosis); tenosynovitis; nutritionaldeficiency-zinc
    • Joint swelling...Infectious synovitis; paratyphoid; pullorum; Nutritional deficiency-zinc; staphylococcosis; tenosynovitis; arthritisTendon at hock displaced... Perosis (nutritional deficiency-choline or manganese)Stilted gait... TenosynovitisCap separated from femur head,femur breaks below hip joint...Tibial dischondroplasiaBone marrow pale...Anemia; hemorrhagic disease; infectious bursal disease; inclusionbody hepatitisTendons enlarged, above andbelow hock...TenosynovitisTracheaSymptom Possible CauseFree blood or cheese-like lining... Laryngotracheitis; Newcastle diseaseMucus with some blood... Chronic respiratory diseaseWart-like bodies, upper part... Fowl poxInflamed... Adeno virus infectionAir SacsSymptom Possible CauseFoamy, purulent, thickened...Colibacillosis; chronic respiratory disease; Newcastle disease; fowlcholeraMoldy, nodules... AspergillosisFoamy, frothy... Infectious bronchitisSmall nodules... Air-sac mite (rare)
    • Cloudy...Air-sac disease; infectious coryza; laryngotracheitis; influenza;Newcastle diseaseLungsSymptom Possible CauseYellow nodules... AspergillosisConsolidated... PneumoniaCropSymptom Possible CauseWhite cheese-like growth... Moniliasis (fungous infection)Dry or slightly moist feed... Acute lack of water (dehydration)Contents sour... Bluecomb diseaseDistended with fluid... Drop crop; feather eatingLining thickened... CapillariaProventriculusSymptom Possible CauseSwollen, enlarged... Necrotic enteritisHemorrhagic... Newcastle diseaseGizzardSymptom Possible Cause
    • Excess fiber, grit, litter, etc... ImpactionErosion of lining...Nonspecific enteritis; necrotic enteritis; hemorrhagic anemia;normal in very young birds; fish mealMuscle degenerated... Selenium deficiencyLining will not peel... Necrotic enteritisIntestinesSymptom Possible CauseElongated, white worms... AscaridsThickened wall, mucus... Capillaria wormsPin point hemorrhages... Coccidiosis; agonal hemorrhagesBlotchy hemorrhages... Hemorrhagic anemiaRed and white dots... Necatrix coccidiosisUlcers... Ulcerative EnteritisSloughed lining... Nonspecific enteritisPaint-brush reddening... Nonspecific enteritisCollapsed, glue-like contents... Heat stroke; acute lack of waterBloody...Hemorrhagic enteritis (turkeys); necatrix coccidiosis; NewcastlediseaseSmall white bodies, upper wall... Acervulina or mivati coccidiosisGreen contents... Low feed intake and bile not dilutedDuodenum red and velvety... Generally normalThick, swollen + hemorrhage... Coccidiosis; enteritis
    • Turkish towel effect, brown... Necrotic enteritis; coccidiosisCecaSymptom Possible CauseBlood or hard cores... Cecal coccidiosisThickened, ulcerated, enlargedcores...BlackheadExcess fluid... Bluecomb disease (poults)Short, threadlike organism... Cecal wormsWhite cores... Coccidiosis; blackheadUlcers.. Ulcerative enteritisOvarySymptom Possible CauseEgg follicles hard shrunken... Pullorum; typhoid; unknownBroken egg yolks... Bluecomb disease, fowl choleraCauliflower-like growth... Mareks diseaseBursa of FabriciusSymptom Possible CauseMarkedly enlarged... Infectious bursal disease
    • Heart SacSymptom Possible CauseThickened, fibrinous, yellowish... Chronic respiratory disease; fowl cholera; colibacillosisFluid in heart sac...Anemia; hemorrhagic anemia; aflatoxin; chick edema disease;other poisoningsHemorrhages... Fowl cholera; typhoid; erysipelas; hemorrhagic anemiaHeart enlarged... Round heart disease; acitesLiverSymptom Possible CauseFilm on surface... Chronic respiratory disease; fowl cholera; colibacillosisNecrosis with mottling... Vibronic hepatitis; blackhead; inclusion body hepatitisWhite or yellow spots...Fowl cholera; hepatitis; pullorum; ulcerative enteritis; adenovirusinfectionSwollen, darkened...Fowl cholera; typhoid; erysipelas; septicemia; toxemia; inclusionbody hepatitisYellowish, sandy nodules... TuberculosisEnlarged, plus or minus nodules... Mareks disease; lymphoid leukosisRound, depressed ulcers... BlackheadGreen... Staphylococcosis; blockage of bileYellow... Fatty liver hemorrhagic syndrome; normal fat storage; aflatoxicosisKidneySymptom Possible Cause
    • Swollen, urate deposit...Infectious bronchitis (Holte or Grey strain); infectious bursaldisease; nephrosisSacs filled with fluid... Cysts (not infection)Mottled... Nephrosis; infectious bronchitis (Holte or Grey strain)RibsSymptom Possible CauseBeaded, crooked, nodular... Rickets (vitamin D, calcium or phosphorus deficiency)Body CavitySymptom Possible CauseExcess of fat...Fatty liver hemorrhagic syndrome; management problems;aflatoxins; excess dietary energyLarge blood clot... Aortic rupture; fatty liver hemorrhagic syndromeStraw colored fluid...Ascites (not a disease, but often associated with diseases aslymphoid leukosis)Milky fluid... Peritonitis