DISEASES AND PARASITES Flashcards
Disease. Caused by a bacteria that may remain in the soil for 40 years or longer. Effects many cattle. Infection may result from grazing in infected pastures. Enters the body through the mouth, nose, and any open wounds. Symptoms are high fever, sudden staggering, hard breathing, trembling and collapse. Death occurs in a few hours, After symptoms appear. When the animal dies it should be burned or buried at least 6 feet deep and covered in quicklime. Don’t bury near wells or streams, can be affected to humans. They should be vaccinated on a yearly basis. What is this?
Anthrax
Disease. Effects the cells of a cow in the lining respiratory system. Young calves and others get affected more than older cattle. As a result the respiratory system is weakened and becomes more liable to infection from other viruses and bacteria. What is this?
Bovine Respiratory Syncytial Virus
Disease. Disease throughout the US. The disease may appear in mild or acute or chronic forms. Spreads by contact human shoes. In mild forms often there’s no symptoms. If symptoms are present it includes fever, coughing, discharge from the nose, slow gains, rapid breathing, and mild diarrhea. Don’t vaccinate a pregnant cow. If animals that had the disease are immune further infection. What is this?
Bovine Virus Diarrhea
Disease. A disease caused by a microorganism, causes heavy loses in the cattle industry. It is less common than what it was. Often abort during the last half of pregnancy. Calves born to infected cows may be weak, there is no cure for it. Symptoms include sterility in cows and bulls, reduced milk, and enlarged testicles in bulls. Spreaded of fence line herd to herd, eating, or drinkin water. What is this ?
Brucellosis
Disease. Caused by a bacteria that grows only in the absence of oxygen. Most serious when bacteria lodges deep in wounds. First sign of disease is when one or more animals start dying suddenly. Before death symptoms are lameness, swollen muscles, severe depression, and in early stages high fever. Prevent it by vaccinations, calves should be treated when young and again when weaning. Dead animals must be burned or buried. What is this ?
Blackleg
Disease. Group of diseases, most common in fall, winter and spring. Diseases of young calves, over 2 months of age. Symptoms very in acute form, the calf is found in a state of shock. The nose, ears and legs are cold and may suffer from diarrhea. The calf dies suddenly. Diarrhea for several days, does loose weight and dies after a several days if not treated. What is this?
Calf Enteritis. (Scours)
Disease. Caused by a variety of bacteria, fungi, and other organisms that are found in the feed lot. Organisms enters the body when skin of the foot is broken in some way. Sharp objects in feed lots such as stones, nails, wire and others can cause injury that makes it possible for cuts to happen. Feedlots that are muddy and/or contain large amounts of manure makes he problem worse. First symptom That’s nodicable is usually lameness, the animal loses appetite, has a fever and is depressed. Don’t wanna stand on it’s feet or move around. Death may eventually result. No vaccinations to prevent it. Just keep pastures sanitized. What is this?
Foot Rot
Disease. Caused by several strains of lepospira bacteria may show any symptoms. Acute cases may show a sudden rise in temperature, rapid breathing, loss in appetite, stiffness, bloody urine, diarrhea or abortion. Can spread from feed that is contaminated with urine. Vaccination can control it. Vaccinate before breeding season. What is this?
Leptospirosis
Disease. Caused by a germ, occurs in 3 forms. It spreads by contaminated feed or water. By dust, urine or saliva and possibly by breeding. As the disease progresses the ears, eyelids, or lips droop. The head turns to one side and it wonders aimlessly in a circle. Cattle will show these symptoms 4-14 days before death. If treated properly will recover. But theirs no vaccine that controls it. What is this?
Listeriosis
Disease. Chronic disease and seldom causes the animal will die. Results in economic loss because the affected body parts are condemned when the animal is slaughtered. The disease affects the jaw and surrounding body part of the head. Sometimes it spreads to muscles and other organs inside. Teeth may become loose, difficult for it to chew. The jawbone becomes spongy and swells, could cause breathing problems may lose weight because of ability to eat. Enters the body through wounds. They never fully recover.
What is this?
Lumpy jaw
Disease. Disease carried by insects that effects the eye. Mild form- the eyeball develops a pinkish color. Around the pupil covering the iris called the cornea becomes slightly clouded. Acute forms- following the tears from the eye and cloudiness. If not treated it can become blind. It spreads quickly to most of he herd. White faced cattle with white pigment around the eye is more likely to be infected. Occurs year around. Most common in maximum sunlight. It’s spreaded by insects such as face flies, by direct contact and infected animals to another by dust and tail switching. They should be vaccinated. What is this?
Pinkeye
Disease. Venereal disease. The organism infects the gentile tract of the bull, and transmitted to the cow during breeding. A clean bull can also be infected by an infected cow. Disease can be transmitted through infected semen. Symptoms include abortion early in pregnancy, low ferlity, irregular heat periods, and infection in the uterus. Symptoms of a cow are discharge of the vaginal of the cow. There is no treatment for bulls, they would be killed. Prevent by using clean bulls on cows. No vaccination for it.
Trichomoniasis
Disease. Growth on the skin caused by a virus. They are spreaded by contact with posts an things that infected annals have touched. May appear singly or in clusters, some are hard some are soft. Calves are usually affected on the head, neck and shoulders. On older cattle it appears often on the udder and nipple. Small ones can be cut with scissors. Olive oil will treat it. Can be prevented by vaccinations. Separate infected from non infected.
What is this?
Warts
Disease. Chronic but seldom fatal disease. Symptoms are soft tissue around the head, swelling in the lymth glands of the neck may also occur. These sometimes break open, discharging creamy pus. May develop on the tongue, the tongue becomes hard and immobile and protrudes from the mouth, the animal will drool. Becomes more difficult for the animal to eat, by not eating the animal will die. Spreaded through contaminated feed by infected animals. What is this?
Wooden Tongue
Disease. Contagious skin disease that may spread to other animals and humans. Symptoms include scaly patches of skin that lack of hair and may appear on any parts of the body. The affected area clears up but then starts to spread to other parts nearby. Sanitation helps control the worm. Infected animals should be separated from well.
Ringworm
External parasites.
1. Horseflies, stable fly, deer fly, black fly, hornfly, and Mosquitos are all what ?
- Screwworm fly, housefly, face fly and heelfly are all what ?
- Bloodsucking flies.
2. Other flies that irritate livestock.
External parasite. Half the size of a housefly. It’s grey black I’m color. Hundreds of them may cluster on the back, horn, withers, and belly of the animal.
What kind of fly is this?
Hornfly
