University:
Sam Houston State University
Course:
BIOL 2413 | General Zoology
Academic year:

2019
Views:

490

Pages:

10
Author:

StellarStrategist

Texas Fever Tick Defense • USDA Tick Force (Permanent & temporary quarantine ti zones)) • USDA Port Veterinarians • TAHC Inspectors ( b (Submit ticks k ffor llab b ID)) TAHC Tick Work • Maintain tick regulations • Trace‐out Trace out work in livestock markets & additional inspections • Complement USDA control efforts ff t on Rio Ri Grande G d • Dectomax (28 days) • Co‐Ral dip (14 days) Imported Mexican Cattle Up to 50% of Mexican origin cattle are carriers of Babesia L ll imported Legally i dM Mexican-origin i i i cattle l are tick-free, however, “M”-brand identifies Mexican-origin cattle; these animals not p permitted in permanent p fever tick quarantine zone(s) What species do Fever Ticks target? Fever ticks prefer cattle, but horses and several species off wildlife ildlif are effective hosts Wildlife: Eff Effective i Hosts for Fever Ticks Red deer Axis, Fallow, Aoudad White-tail Elk Nilgai Fever eve Tick c Requirements equ e e ts Cattle/horses originating g g in a tick qquarantined area must: • before leaving – have certificate issued by USD/TAHC showing the cattle are free of infestation and exposure to fever ticks and • have h b been di d or treatedd under dipped d supervision in an approved dipping solution or t t treatment t immediately i di t l prior i to t shipment. hi t Blanket Areas under Temporary Q Quarantine ti 176,000 acres 423,510 acres 152,716 acres Spraying horses horses… Horses can provide “t “transportation” t ti ” for f ffever ticks ti k Bovine Trichomoniasis “Trich” What is Bovine Trichomoniasis? A venereal disease of cattle caused by Tritrichomonas foetus, a protozoal parasite. Characterized by early embryonic death of the fetus – usually in first 30 – 90 days of pregnancy, but may cause late‐term abortion