Recognizing and Managing Common Health Problems of Beef Cattle

1. Recognizing and Managing Common Health Problems of Beef Cattle Floron C. Faries, Jr., DVM, MS Professor and Extension Program Leader for Veterinary Medicine Texas AgriLife Extension Service Texas A&M System

2. “My cows’ eyes are cloudy and runny.” • Pink Eye • Bacterial disease • Ulcer develops • Cornea becomes cloudy • Immediate treatment • Isolation of infected cattle

3. IBR Virus Eye (Infectious Bovine Rhinotracheitis) • Viral disease • May develop cloudy cornea • No ulceration • Isolation of affected animals • Vaccination of the whole herd

4. Cancer Eye (Squamous Cell Carcinoma) • Smooth plaques on the eyeball • Ulcer or horn lesions on the eyelids

5. Photo Eye (Photosensitization) • Hypersensitivity to sunlight • Cloudiness of the cornea • Protection from sunlight

6. “My calves have 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

7. Warts (Papillomatosis) • Papilloma virus • Transmitted to calves by direct contact • Cauliflower-type growths • Calves with warts should be isolated • Warts dry and sluff

8. “Every winter my cows rub their heads, necks and shoulders” • Horn Fly Allergy (Allergic Dermatitis) • Skin allergy to saliva • Itch sensation • Cattle rub from December through March • Hair coat becomes sparse • Reduce the horn fly population

9. “I have occasionally a cow or a bull 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

10. Foot Rot (Necrotic Pododermatitis) • Draining infection with a foul odor • Hot, swollen and painful foot • Bacteria in manure mixed with mud

11. Corn (Interdigital Hyperplasia) • Vertical mass of skin growth • Web of skin between the toes

12. “One of my cows coughs, protrudes her tongue and breathes with her mouth open.” • Infectious Lung Disease (Pneumonia) • Several viruses in concert with various bacteria • IBR-PI3-BVD-BRSV • Pasteurella • Haemophilus • Mycoplasma • Predisposing stress factors • Isolated for treatment • Vaccination plan for whole herd

13. Fog Fever (Pulmonary Emphysema and Edema) • Fever is not present • Toxic reaction in the lungs • Lush, green grass in spring or fall • Handled with caution • Cowherd should be moved from the lush pasture

14. “My calves have a runny, snotty nose.” • Runny, Snotty Nose (Sinusitis) • Extreme hot or cold temperatures • Windy conditions • Irritants and allergens • Viral and bacterial infections • Use of antibiotics is contraindicated • Low-grade fever • Absence of fever

15. “Some of my cows got the staggers, went down and are unable to rise.” • Polio (Polioencephalomalacia) • Cows are thin • Low protein, low roughage, and high sulfate diet • Confined and fed a grain diet without roughage • Downer cow attempts to stand • Ankles remain flexed or knuckled over • Immediate treatment

16. Range Ketosis (Acetonemia, Hypoglycemia) • Cows are thin • A low carbohydrate, low energy diet • Stressed from cold weather or calving and nursing • Incoordination, bellowing, wallowing and licking with tongue • Pressing against walls, posts and trees • Immediate treatment

17. Grass Tetany (Hypomagnesemia) • Cows are thin • Grazing lush pasture high in nitrogen and potassium • Stressed from cold, cloudy weather or calving and nursing • Staggers, tossing head • Bellowing and galloping • Convulsions • Immediate treatment

18. “I have occasionally a thin, downer cow.” • Dietary deficiencies • Enteric bacteria and parasites • Pleurisy, peritonitis • Abscesses • Cancers

19. “I continue every year to have cows prolapse and retain afterbirth.” • Bruising of uterus • Difficulty in calving • Prolonged calving process • Straining with prolapse of the vagina, cervix or uterus • Placenta retained due to bruising inflammation

20. “I have low conception rates, repeat breeders and abortions in my cowherd.” • Infectious diseases • Dietary deficiencies • Stresses of hot weather and malnutrition • Poor quality or short grazing

21. “I had several calves suddenly die that before dying were rapidly breathing, weak and feverish.” • Lepto (Leptospirosis) • Five serovars of bacteria • Exposures to calves are from urine • Kill unborn calves and nursing calves • Vaccination of whole herd • Vaccine failures may occur

22. Blackleg (Clostridial Disease) • Bacterial toxins (poisons) • Spores from the soil • Spores are ingested • Go to muscles and remain dormant • a trigger breaks them out of dormancy • Dead calves should be burned • Vaccination of the whole herd • 7-way/8-way blackleg vaccine

23. Clostridial Diseases (Blackleg Group) • Blackleg (C. chauvoei) • Blackgut (C. perfringens B) • Blackgut (C. perfringens C) • Blackgut (C. perfringens D) • Blackneck (C. sordellii) • Blackliver (C. novyi) • Malignant edema (C. septicum) • Redwater (C. hemolyticum)

24. “Some of my calves are rapidly breathing, weak, feverish, scouring and dying.” • 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 • Rotovirus and coronovirus • E. coli and C. perfringens B, C, D • Cryptosporidia and coccidia • Provide clean maternity areas • Vaccination program for the whole herd