Transcript Nutritional Diseases - Texas A&M University

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Stephanofilaria habronema
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Transmitted by
 Houseflies
 Stable flies
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Infect wounds
Cause
 Excessive granulation
 Proud flesh
 Summer sores
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Onchocerca
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Transmitted by
 Mosquitoes
 Gnats
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Cause
 Skin reactions
 Face
 Neck
 Chest
 Horse underline
Digestive System
 Arthropods
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Bots
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Larval stages of botflies
Develop in stomach
Affect horses
Symptoms
 Colic
 Helminths
 Worms
 May cause infection or disease or both
 Clinical or sub-clinical
 Affect health status
 Clinical
 Obvious symptoms
 Anemia
 Diarrhea
 Emaciation
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Sub-clinical
 No symptoms
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Life span
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Direct life cycle
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1-12 months
Animal resistance
Eggs
Larvae
Adults
Indirect life cycle
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Intermediate host
 Direct life cycle
 Indirect life cycle
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Nematodes
 Roundworms
 Large numbers
 Nutritional disturbance
 Damage
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Stomach lining
Intestine
Blood loss
Hemorrhages
Migrating
 Arteries
 Liver
 Lungs
Digestive inefficiency
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Examples
 Trichostrohgyles (hairworms)
 Stomach and intestines of ruminants
 Strongyles (bloodworms)
 Large intestine of horses
 Hookworms
 Small intestine dogs and cats
 Large roundworms
 Small intestine of pigs, dogs, cats, horses and
poultry
 Whipworms
 Large intestine dogs and pigs
Hairworm
Bloodworm
Infestation of Cow
Hookworm
Large roundworms
Whipworms
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Symptoms
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Emaciation
Rough hair coat
Diarrhea
Pale mucous membranes
Diagnosis
 Fecal floatation
 Eggs
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Transmission
 Ingestion
 Larvae
 Hairworms
 Strongyles
 Hookworms
 Eggs
 Large roundworms
 Whipworms
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Direct contact
 Skin
 Hookworms
 In-utero
 Hookworms
 Large roundworms
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Tapeworms
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Small intestine
Species
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Dogs
Cats
Ruminants
Horses
Diagnosis
 Gravid segments in
 Feces
 Anus
 Transmission
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Oral
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Infected fleas
 Dogs and cats
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Infected soil mites
 Ruminants and horses
Tapeworms
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Flukes
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Liver flukes
Intermediate host
 Snails
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Transmission
 Oral
 Larvae encyst on grasses
 Cattle graze grass
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Symptoms
 Acute liver disease (young animals)
 Chronic liver disease (older animals)
 Malnutrition
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Diagnosis
 Fecal float
 Observation
 Flukes
 Liver damage
Flukes
Life Process of Flukes
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Protozoa
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One-celled parasites
Intestine
Common
 Carriers
 Disease
 Young susceptible animals
 Poor diets
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Examples
 Coccidiosis
 Calves, dogs, cats, poultry
 Trichomoniasis
 Dogs
 Giardiasis
 Dogs
 Hexamitiasis
 Poultry
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Symptoms
 Enteritis or colitis
 Diarrhea
 With or without blood and mucous
Coccidiosis
Trichomoniasis
Giardiasis
Hexamitiasis
Circulatory System
 Heartworms
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Nematode
Climatic
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High rainfall
High humidity
Large mosquito population
Disease
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Large amounts of worms affect blood flow
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Symptoms
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Exhaustion
Weakness
Rapid breathing
Coughing
Ascites
 Swollen abdomen
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Diagnosis
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Blood smear
Snap test
Life Process of Heartworm in Dog
Heartworms
Reproductive System
 Protozoa
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Genital
Example
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Transmission
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Bovine trich
Veneral
Diagnosis
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Smears