7 im­por­tant things to know about drench­ing live­stock

NZ Lifestyle Block - - Notebook -


adult sheep and cat­tle can with­stand higher worm bur­dens.


of a worm pop­u­la­tion live out­side the an­i­mal. Manag­ing that pop­u­la­tion is an un­der­utilised tool.


re­sis­tance is a prob­lem in to­day’s worm con­trol, and ev­i­dence shows that long-act­ing drenches can in­crease se­lec­tion for drench re­sis­tance.

If you

have to drench stock of­ten, you are prob­a­bly suf­fer­ing a ma­jor pro­duc­tion loss.


prac­tices used to min­imise drench­ing are the same prac­tices that will max­imise an­i­mal pro­duc­tion.


make drench­ing de­ci­sions “on the hoof”: plan lamb graz­ing shifts for worm con­trol be­fore wean­ing, and plan drench treat­ments, in­clud­ing when, why, what an­i­mals, and what prod­uct.


what worm species you are try­ing to con­trol may help to de­velop an ap­pro­pri­ate drench pro­gramme. Use a FEC 10 days af­ter drench­ing twice a year to con­firm that drenches are work­ing, and do a full drench test ev­ery 2-3 years.

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