New sheep worm drench resistance kit makes testing easier

A new kit containing everything needed for a sheep worm drench resistance test has been developed by researchers at the Department of Agriculture and Food WA.

Department principal veterinary parasitologist Brown Besier said the kit makes testing much easier, at a time when department findings show drench resistance in WA is increasing.

“Drench resistance tests are based on the reduction in worm egg counts in small groups of sheep after treatment with different types of drench,” Dr Besier said.

“The new kit tests for resistance to four commonly-used drenches: abamectin, moxidectin, a white/clear drench combination, and a white/clear and abamectin combination."

“Resistance now includes drench types that have usually been considered fully effective. Abamectin and moxidectin can no longer be relied on without checking, and we have even found resistance to the triple combinations (a white/clear and abamectin)."

“The consequence of using less-effective drenches is usually not seen immediately, but has a major impact on sheep health and production over the course of a year.”

A drench resistance test is recommended every two years and is best conducted on lambs up to six months of age. Tests are ideally carried out from weaning up to summer drenching when lambs are most susceptible to worms. A minimum worm egg count of 300 eggs per gram is required using sheep not drenched within the last two months.   
New sheep worm drench resistance kit makes testing easier

 After the test is set up, dung samples are sent to the Albany Animal Health Laboratory and a report is sent back within two weeks. The report indicates  which drenches work against which worm types, and includes general recommendations on the most effective drench to use for good worm control results,  with the least increase in drench resistance. 

 “We recommend that you discuss the results in detail with your veterinarian to plan a worm control program, as the sheep management options vary  between properties and no prediction based on past drench usage or local district patterns can be made, “ Dr Besier said.

 Kits can be purchased from department offices at a cost of $440, about the cost of a drum of a common sheep drench. The fee covers the equipment:  quantities of the four drench types, sample containers, pre-addressed postage bags and clear instructions, the laboratory costs, 60 worm egg counts and  identification of worm types in five sheep groups. 

 For more information call one of the department offices handling the kits: Albany, Esperance, Katanning, Narrogin, Merredin, Moora or Manjimup. Contact  details are available at agric.wa.gov.au

News Category

New Forum Topics

Topic Replies Last post Forum
5894 Soil aeration
by Albertgotdonkey on Fri, 11/08/2019 - 08:16
4
by Albertgotdonkey
Tue, 11/19/2019 - 17:33
General Forum
3032 Selling meat off farm that is slaughtered by a registered abattoir
by Dominiquet on Sun, 08/14/2016 - 17:38
5
by admin
Mon, 11/18/2019 - 11:13
Farming Help
5855 sheep and goats
by mick650 on Mon, 09/09/2019 - 20:06
3
by ploist125
Thu, 11/14/2019 - 06:11
General Forum
5891 Growing/cutting hay
by megssss on Wed, 11/06/2019 - 11:14
3
by admin
Wed, 11/13/2019 - 10:58
Farming Help
699 How do you use software to help you run your farm ?
by clement_911 on Sat, 02/25/2012 - 19:20
8
by kakhankaramm
Fri, 11/08/2019 - 18:29
General Forum
5889 Please help with choice
by PeterHigg on Thu, 10/31/2019 - 22:59
3
by admin
Fri, 11/08/2019 - 12:46
Farm planning
5887 Sheep and Cattle Per Acre
by Jack Lambo on Tue, 10/29/2019 - 08:17
1
by admin
Thu, 10/31/2019 - 11:13
Pastures
3849 Paralysis Tick Prevention - sheep/lamb
by BecS on Sat, 09/22/2018 - 07:00
3
by AuroraDaniels
Wed, 10/23/2019 - 18:04
General Forum
5870 Do lambs need to be treated prior to Consumption?
by Bushwick on Sun, 10/06/2019 - 22:15
4
by admin
Mon, 10/21/2019 - 11:17
Sheep
2899 Chamberlain Countryman 354 Parking Brake
by countryman on Sat, 05/07/2016 - 12:33
1
by Peter Holmes
Sat, 10/19/2019 - 10:28
Farming Help
3059 Tractor implements... Advice please.
by Mal on Sat, 09/10/2016 - 11:08
2
by pasture.improv…
Fri, 10/11/2019 - 11:10
Farming Help
5869 Goat founder, please help.
by annef202 on Sun, 10/06/2019 - 12:32
2
by admin
Fri, 10/11/2019 - 11:09
Goats
5832 Grass / Reed identification
by steventh on Fri, 08/09/2019 - 08:22
3
by pasture.improv…
Fri, 10/11/2019 - 11:03
Weeds & Pests
3085 Order of operations for pasture improvement
by patdwyer on Wed, 09/28/2016 - 13:51
3
by pasture.improv…
Fri, 10/11/2019 - 11:01
Farming Help
3022 What to do?
by Andrew_Porter on Wed, 08/03/2016 - 21:37
1
by pasture.improv…
Fri, 10/11/2019 - 10:52
New Members
2967 What to do with 10 acres ?
by jp_ads on Tue, 06/21/2016 - 16:49
5
by Bushwick
Thu, 10/10/2019 - 21:57
Farming Help
5838 Farm layout
by thato on Wed, 08/21/2019 - 08:14
2
by Redhead
Wed, 10/09/2019 - 22:17
Farm planning
5862 Sheep agistment
by faki03 on Thu, 09/26/2019 - 07:17
1
by admin
Wed, 10/09/2019 - 11:21
Sheep
5798 Dairy cow, where?
by shelle on Wed, 08/07/2019 - 06:49
5
by zararr
Sun, 09/29/2019 - 00:21
General Forum
5847 Cattle start up
by grahamsie on Tue, 09/03/2019 - 12:10
4
by Albertgotdonkey
Sat, 09/14/2019 - 09:04
Cattle

Our Sponsors

Our Partners