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Roundworm infestations are most evident in the young. Pups can be infected and reinfected from three sources:
Infected pups generally lack thrift, have a lack lustre, dull coat and may have a pronounced, pot-bellied appearance. Roundworms can be vomited or passed in the faeces. These expelled roundworms may vary in length from 1 cm to several centimetres in length, are off white in colour, and about the thickness of a 5-6 ply knitting wool yarn. The worms may not necessarily be expelled and can cause severe disturbance to the digestive system and may even result in a complete blockage and so death.
The most accurate way to confirm diagnosis is by the detection of the worm eggs in the faeces. The worm eggs are invisible to the human eye and the faeces sample needs to be treated in a special flotation solution and examined under a microscope. The eggs are then isolated and egg shape and cultivation to allow the egg to hatch confirm identification. In extreme problem cases the larvae may be further developed to ascertain if there is any drug resistance to the chosen worming preparation.
There are a number of very adequate worming preparations available for roundworm control, but the following points should be born in mind when planning your own control programme. Cats, foxes, dingos and other dogs can be carriers of a roundworm infestation and could contaminate your exercise areas or kennels, so take care to ensure any dogs introduced are treated and also treat any cats you own. Ensure you have good fences around your exercise areas to reduce the chances of foxes or stray dogs or dingos contaminating your area.
Take care to carefully follow the instructions on the worming preparation and weigh the dogs if the treatment is by weight to measure, to ensure the drug is able to work at its optimum potency.
Do not assume that the preparation has killed all the worms. Maintain regular treatment protocols, as the product will only be effective against adult or near mature worms and there is the potential for existing larvae to develop into mature worms and breed, as well as for existing eggs to hatch into larvae.