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Recognizing and Managing Common Health Problems of Replacement Show Heifers. Floron C. Faries, Jr., DVM, MS Professor and Extension Program Leader Texas AgriLife Extension Service Texas A&M System College Station, TX 77843 http://extensionvetmed.tamu.edu.

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recognizing and managing common health problems of replacement show heifers

Recognizing and Managing Common Health Problems of Replacement Show Heifers

Floron C. Faries, Jr., DVM, MS

Professor and Extension Program Leader

Texas AgriLife Extension Service

Texas A&M System

College Station, TX 77843

http://extensionvetmed.tamu.edu

my heifer s eyes are cloudy and runny
“My heifer’s eyes are cloudy and runny.”
  • Pink Eye
    • bacterial disease
    • excessive flow of tears
    • holding the eye partially closed
    • rubbing the eye
    • seeking shaded areas
slide3
ulcer develops
  • cornea becomes cloudy
  • immediate treatment
  • isolation of infected cattle
slide4
IBR Virus Eye (Infectious Bovine Rhinotracheitis)
    • aerosol transmission of this virus
    • may develop cloudy cornea
    • no ulceration
    • isolation of affected animals
    • vaccination of the whole herd
slide5
Cancer Eye (Squamous Cell Carcinoma)
    • smooth plaques on the eyeball
    • ulcer or horn lesions on the eyelids
    • excessive flow of tears
    • heating or freezing therapies
    • surgical removal
    • eyeball and eyelids removal
slide6
Photo Eye (Photosensitization)
    • hypersensitivity to sunlight
    • cloudiness of the cornea
    • non-pigmented tissues
    • sunburned
    • protection from sunlight
my heifer has areas of hair loss with skin lesions
“My heifer has areas of hair loss with skin lesions.”
  • Ringworm Fungus (Dermatophytosis)
    • fungus infection
    • direct contact to calves
    • circumscribed grayish lesions
    • located on the face and neck
    • calves should be separated and treated
slide8
Warts (Papillomatosis)
    • papilloma virus
    • transmitted to calves by direct contact
    • cauliflower-type growths
    • calves with warts should be isolated
    • warts dry and sluff
during winter my heifer rubs her head neck and shoulders
“During winter my heifer rubs her head, neck and shoulders”
  • Horn Fly Allergy (Allergic Dermatitis)
    • skin allergy
    • itch sensation
    • cattle rub from December through March
    • hair coat becomes sparse
    • reduce the horn fly population
occasionally my heifer is crippled on one foot
“Occasionally my heifer is crippled on one foot.”
  • Foot Crack (Web Tear)
    • web of skin between the toes deeply cracked
    • damaged tissue must heal inside out
    • confined for a few weeks
slide11
Foot Rot (Necrotic Pododermatitis)
    • draining infection with a foul odor
    • hot, swollen and painful foot
    • bacteria in mud mixed with manure
    • segregated for proper treatment
    • corrections of the unsanitary conditions
my heifer coughs protrudes her tongue and breathes with her mouth open
“My heifer coughs, protrudes her tongue and breathes with her mouth open.”
  • Infectious Lung Disease (Pneumonia)
    • fever, coughing and labored breathing
    • head and neck are outstretched
    • tongue is protruding
    • several viruses in concert with various bacteria
slide13
predisposing stress factors
  • isolated for treatment
  • vaccination plan for whole herd
slide14
Fog Fever (Pulmonary Emphysema and Edema)
    • fever is not present
    • coughing is minimal
    • respiratory distress is extensive
    • mouth breathing
    • extended tongue
slide15
drooling saliva
  • toxic reaction in the lungs
  • lush, green grass in spring or fall
  • handled with caution
  • cowherd should be moved from the lush pasture
my heifer has a runny snotty nose
“My heifer has a runny, snotty nose.”
  • Runny, Snotty Nose (Sinusitis)
    • nasal drainage
    • excess quantities of drainage from inflamed sinuses
    • extreme hot or cold temperatures
    • windy conditions
    • irritants and allergens
slide17
viral and bacterial infections
  • use of antibiotics is contraindicated
  • low-grade fever
  • absence of fever
my heifer has the staggers went down and is unable to rise
“My heifer has the staggers, went down and is unable to rise.”
  • Polio (Polioencephalomalacia)
    • cows are thin
    • low protein, low roughage, and high sulfate diet
    • confined and fed a grain diet without roughage
slide19
downer cow attempts to stand
  • ankles remain flexed or knuckled over
  • immediate treatment
my heifer suddenly died that before dying was rapidly breathing weak and feverish
“My heifer suddenly died that before dying was rapidly breathing, weak and feverish.”
  • Lepto (Leptospirosis)
    • five serovars of bacteria
    • exposures to calves are from urine
    • fever, rapid and difficult breathing
slide21
kill unborn calves and nursing calves
  • vaccination of whole herd
  • vaccine failures may occur
slide22
Blackleg (Clostridial Disease)
    • bacterial toxins (poisons)
    • spores from the soil
    • spores are ingested
    • go to muscles and remain dormant
slide23
a trigger breaks them out of dormancy
  • dead calves should be burned
  • 7-way blackleg vaccine
  • vaccination of the whole herd
my heifer is rapidly breathing weak feverish and scouring
“My heifer is rapidly breathing, weak, feverish, and scouring.”
  • Scours (Enteritis-Colitis Septicemia)
    • ground becomes heavily contaminated with germs from manure
    • kill baby calves from scours by dehydration and septicemia
    • scours are caused by bacteria, viruses, and protozoa in the intestines
slide25
rotovirus and coronovirus
  • E. coli and C. perfringens B, C, D
  • cryptosporidia and coccidia
  • provide clean maternity areas
  • vaccination program for the whole herd