Beef Cattle Diseases

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Beef Cattle Diseases
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Anthrax

• Spores stay in the ground
• No treatment
• Vaccinate against

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BRSV -

• Bovine Respiratory Syncytial Virus
• Basically like pneumonia
• Respiratory disease

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BSE

• bovine spongiform encephalopathy
• progressive neurological disorder of cattle that
  results from infection by an unusual
  transmissible agent called a prion.
• Two cases in 1986
• originated as a result of feeding cattle
  meat-and-bone meal that contained BSE-infected
  products from a spontaneously occurring case of
  BSE or scrapie-infected sheep products

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BSE
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BVD

• Bovine Virus Diarrhea
• damage to the digestive and immune systems,
  pneumonia, abortions, calf deformities, and
  others. 
• Clinical signs in newborn calves infected with
  BVD include fever, nasal discharge, diarrhea, and
  inability to move about normally.
• Live virus BVD vaccine could have negative
  effects though

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Brucellosis
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• Symptoms
• Acute brucellosis may begin with mild flu-like
  symptoms, or symptoms such as
• Abdominal pain
• Back pain
• Chills
• Excessive sweating
• Fatigue
• Fever
• Headache
• Joint pain
• Loss of appetite
• Weakness
• Weight loss
• High fever spikes usually occur every afternoon.
  The name "undulant" fever is because the fever
  rises and falls in waves.
• Other symptoms that may occur with this disease
• Muscle pain
• Swollen glands
• The illness may be chronic and last for years.

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Blackleg

• The bacteria enters the calf by ingestion and
  then gains entrance to the body through small
  punctures in the mucous membrane of the digestive
  tract. 
• Cattle that are on a high plane of nutrition,
  rapidly gaining weight and between 6 months and 2
  years of age are most susceptible to the
  disease. 
• The disease is not transmitted directly from sick
  animals to healthy animals by mere contact.
• The first sign observed is usually lameness, loss
  of appetite, rapid breathing and the animal is
  usually depressed and has a high fever. 
  Characteristic swellings develop in the hip,
  shoulder, chest, back, neck or elsewhere.  First
  the swelling is small, hot and painful. 

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Blackleg Muscle
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Foot and Mouth

• caused by one of the smallest disease producing
  viruses known. 
• Humans do not catch the virus. 
• The disease is characterized by blister-like
  lesions on the tongue, nose and lips, in the
  mouth, on the teats and between the toes which
  then burst, leaving painful ulcers.   The
  blisters cause a heavy flow of sticky, foamy
  saliva that hangs from the mouth.  Infected
  animals sway from one foot to the other due to
  the tenderness of the feet

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IBR

• Infectious bovine rhinotracheitis - Red nose
• This infection usually occurs in the air passages
  of the head and the wind pipe.  However, in
  females this virus also causes inflammation of
  the vulva and vagina and abortion. Abortion
  occurs about 20 to 45 days after infection.
• Usually goes with shipping fever

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Johnes disease

• a contagious, chronic and sometimes fatal
  infection that primarily affects the small
  intestine of ruminants.

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Leptospirosis

• chronic (long lasting) or acute (short lasting)
• show signs restlessness, loss of appetite, fever
  and nervous system disorders.  Although not seen
  in every case, the most notable symptom gives
  this disease its nickname, "Circling Disease."
  Cattle with listeriosis are often seen walking in
  circles.  Other, more subtle symptoms include
  uncoordinated movements, leaning against objects,
  and progressive paralysis. Death can occur within
  2 to 3 days after the onset of symptoms, but
  cattle can survive for up to 2 weeks with the
  disease.  

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Lumpy jaw

• produces immovable hard swellings on the upper
  and lower jawbones of cattle, commonly at the
  central molar level.  It is caused by an
  anaerobic micro-organism

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Pinkeye

• redness and inflammation of the lining of the
  eyelid and eyeball. 
• non-fatal
• Pinkeye and foot rot are the two most prevalent
  conditions affecting all breeding beef females

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Trichomoniasis

• venereal disease of cattle that causes
  infertility and occasional abortions in cows and
  heifers.

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Warts

• Wart Vaccine
• Cut off and feed to them

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Wooden Tongue

• Bacteria
• lives in the mouth, invade tissue through breaks
  in the lining of the mouth.  Any rough feed can
  cause mouth abrasions which allow entry of
  infection. 
• The disease starts suddenly with the tongue
  becoming hard, swollen and painful

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Wodden Tongue
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Ringworm

• Not a worm
• Similar to athletes foot