Beef Herd Abortion Case Marta Grinde Kelsi Hendrickson Chrissy Wendorf.

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Presentation transcript:

Beef Herd Abortion Case Marta Grinde Kelsi Hendrickson Chrissy Wendorf

History  25 angus cows in NY – purchased at auction Vaccinations:  Previous history unknown – cattle were purchased at auction  BVD, Lepto, 7-way Clostridia, MLV nasal for IBR & PI 3 upon arrival at farm  Purchased new heifer 2 months later Vaccinations:  Previously had been vaccinated with IBR/BCD/BRSV/PI3, Blackleg, Lepto (5 strain), and Enterotoxemia C & D

Evidence  5 later-term abortions 1 “stillborn,” 2 ataxic calves with cerebellar hypoplasia and 2 early neonatal deaths (1 calf had lesions in mouth) Abortions occurred 1-3 months after introduction of new heifer  Cows were “not acting right” Anorexia and diarrhea  Four months after purchase, heifer develops symptoms: High fever Diarrhea with blood Mouth sores death

Explanation  BVD (Bovine Viral Diarrhea) Common symptoms:  Premature births, weak or stunted calves  Damaged immune system (ex: higher incidence of pneumonia)  High fever and diarrhea  Mucosal virus Causes development of mouth sores, high fever and bloody diarrhea Always carriers of BVD  Most severe symptoms in pregnant cows and heifers

Future Suggestions  Do not purchase cattle without knowing farm and individual animal history  Test cattle of unknown status  Vaccinate cattle as heifers Modified live vaccines are more effective than killed (which is for use in pregnant animals)

References  /livestock/dairy/facts/bovinevi.htm /livestock/dairy/facts/bovinevi.htm  tions/factsheet/AH_Dairy_06.pdf tions/factsheet/AH_Dairy_06.pdf