§ Lord McNairasked Her Majesty's Government:
For what periods, and where, has warble fly dressing been compulsory and what have been the recommended products for (a) beef cattle (b) dairy cattle.
Lord LucasThe State Veterinary Service normally requires the treatment of all herds within a 3 km radius of a farm where there is serological or clinical evidence
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Product name marketing authorisation holder Authorisation number Active ingredient Indication for use Poron 20 Young's Animal Health Ltd. PL 1447/4007 Phosmet Beef cattle—not to be slaughtered for human consumption until 14 days after last treatment. Dairy cattle—should be treated immediately after milking or at least 6 hours before the next milking. Oramee Drench for Cattle Merck. Sharpe and Dohme Lts. PL 0025/4045 Ivermectin Beef cattle—not to be slaughtered for human consumption within 21 days of last treatment. Dairy cattle—not to be used un cattle producing milk for human consumption or in dairy cows within 28 days prior to calving. Ivomee Super Injection for Cattle Merck. Sharpe and Dohme Ltd. PL 0025/4046 Ivermectin Beef Cattle—not to be slaugthtered for human consumption util 28 days after last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption or in dairy cows within 28 days prior to calving. of warble fly infestation. In addition, all cattle imported into Great Britain are required to he treated for warble fly infestation within 24 hours of their arrival.
The table below lists those counties where compulsory 3 km treatment areas have been imposed during the last five years and the number of times. It should he noted, however, that serological evidence of infestation was detected on 215 premises in 1995 hut, because there was no evidence of clinical disease, 3 km treatment areas were not imposed and compulsory treatment was restricted to individual herds:
1991 1992 1993 1994 1995 Avon — — 2 — — Ayrshire — — 2 — — Bedfordshire — — 1 — — Cheshire — — 8 — — Cornwall — — 1 — — Cumbria — 1 — 1 — Devon — — 2 — — Dorset — — 1 — — Dyfed — — 1 — — Gloucestershire — — 1 — — Hampshire — — 2 — — Hereford and Worcester — — 1 1 — Kent — — 1 — — Lancashire — — 1 — — Lothian — — 1 — — North Yorkshire — 1 — — — Oxfordshire — — 1 — — Shropshire — — 3 — — Somerset — — 5 — — Staffordshire — — 1 — — West Sussex — — 1 — — Wiltshire — — 3 1 — Total Nil 2 39 3 Nil The table below lists those products that arc currently authorised, as opposed to recommended, for use against warble fly in cattle. Information on products which are no longer authorised is not readily available:
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Product name Marketing authorisation holder Authorisation number Active ingredient Indications for use Ivomee Pour On for Cattle Merck. Sharpe and Dohme Ltd PL 0025/4050 Ivermeetin Beef cattle—not to be slaughtered for human consumption until 28 days after last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption or in dairy cows within 28 days prior to calving. Ivomee SR Bolus for Cattle Merck. Sharpe and Dohme PL 0025/4058 Ivermeetin Beef cattle—not to be slaughtered for human consumption until 180days after last administration; not for administration to cattle weighing less than 100 kg. or exceeding 400 kg. to preruminating calves or those of less than 12 weeks of age. Dairy cattle—not for use in cattle producing milk for human consumption; not to be administered to dairy heifers within 180 days of expected parturition. Dectomax Pfizer Ltd PL 00157/4094 Dorameetin Beef cattle—not to be slaughtered for human consumption until 42 days after last treatment. Dairy cattle—not to be used in cows producing milk for human consumption or non-lactating dairy cows. Enzee Injection for Cattle Merck. Sharpe and Dohme Ltd. PL 0025/4060 Abameetin Beef cattle—not to be slaughtered for human consumption until 42 days alter last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption. Cydeetin 1 per cent. Solution Injeetable for Cattle Cyanamid (GB) Ltd. PL 0095/4059 Moxideetin Beef cattle—not to be slaughtered for human consumption until 45 days after last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption or within 60 days before parturition. Panomee Injection for Cattle. Sheep and Pigs Merck. Sharpe and Dohme Ltd PL 0025/4071 Ivermeetin Beef cattle—not to be slaughtered for human consumption within 35 days of last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption or in dairy cows within 28 days prior to calving. Ivomee Injection for Cattle MSD Agvet PL 0025/4070 Ivermeetin Beef cattle—not to he slaughtered for human consumption within 21 days of last treatment. Dairy cattle—not to be used in cattle producing milk for human consumption or in dairy cows within 28 days prior to calving. Further details of these products are given in the 1995–96 Compendium of Data Sheets for Veterinary Products, published by the National Office of Animal Health Ltd.
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