Sheep, farming, husbandry, disease, animal health, worms, internal parasites, references, further readingBy Dr Clive Dalton Le Jambre, L.F. et. al. (2005).Proceedings of the 20th International conference of the world association for the advancement of veterinary parasitology, 16-20 October, 2005, Christchurch New Zealand. Abstract L98. Page 177. McEwan, J (1994).Breeders’ manual. WormFEC. Breeding sheep resistant to … Read more
By Dr Clive Dalton Docking lambs’ tailsRemoving lambs’ tails has been a standard part of sheep husbandry from early times, mainly to prevent the formation of soiled wool or ‘dags’ sticking to the wool of sheep eating lush pasture. Removing soiled wool or dagging has always been one of the least popular jobs on a … Read more
By Dr Clive Dalton PART 8 Life cycle of main species of sheep worms Faecal Egg Counting (FEC) Larvae being incubated in lab Limitations of a FEC FEC sampling tips Paddock (composite) samples Finger sampling Probe rectal sampling Faecal Consistency Score (FCS) When to do it? Scores used Photo 1: ‘Marbles’ Photo 2: ‘Hand grenades’ … Read more
By Dr Clive Dalton Well, which one are you going to buy? Will the store assistant know enough to help you? Beware of being told that ‘this one’s a good seller at the moment’! Or this one has the free jerkin’. Drenches on the market It is mind boggling to see the enormous range of … Read more
Sheep, farming, husbandry, disease, animal health, worms, internal parasites, options to avoid drench, organics, homeopathy, minerals, evaluating products, future developments By Dr Clive Dalton When none of these products work any more – what options do you have? When drenches fail – what happens When the day arrives when you find out that the current … Read more
By Dr Clive Dalton What everybody knows The old solution What needs thinking about now? The solution – genetics What to do Disclaimer This material is provided in good faith for information purposes only, and the author does not accept any liability to any person for actions taken as a result of the information or advice … Read more
Sheep, farming, husbandry, disease, animal health, worms, internal parasites, immunity, what helps & depresses immunity By Dr Clive Dalton What is immunity? What helps immunity? What harms immunity The periparturient rise Genetic improvement of immunity Do anthelmintics harm the immune system?This very important question was never asked in the past; we took it for granted … Read more
Sheep, farming, husbandry, disease, animal health, drench resistance, dealing with problem By Dr Clive Dalton What do you do to find out if your sheep have worms resistant to drench? Acknowledgements Thanks to Dr John Moffat, Schering-Plough Coopers for use of this case material. The problem Action taken Key points from the table: Drenching Recommendations … Read more
By Dr Clive Dalton Back industries Many back injuries occur when handling sheep, especially when lifting a sheep over a fence. This is often done to save time, rather than pushing the sheep to a gate when the pen is full. Or you may be in a paddock where there is no gate to drag … Read more
Sheep, farming, husbandry, disease, animal health, worms, internal parasites, By Dr Clive Dalton Answer this question – it’s compulsory!Are the worms in your sheep resistant to the chemicals in drenches currently being used? Key point 1: Key point 2: Fill in this form to assess where you are at, and which will help you have … Read more
Sheep, farming, husbandry, worms, internal parasites, health, definitions, genus & species, life cycles, signs of wormy sheep, effects of worms on sheep By Dr Clive DaltonWhat are ‘worms’?‘Worms’ is a general term used for internal parasites that affect sheep. Plenty of other terms are used such as: Worms in New Zealand Can you see them? … Read more
By Dr Clive Dalton Because of the way internal parasites operate in sheep, and the methods we have used in the past to control them, a lot of myths and half truths have become interwoven with good solid facts. Myths are defined as ‘traditional narrative embodying popular ideas’ so some bits are true or half … Read more
Sheep, farming, husbandry, animal health, worms, internal parasites, management options By Dr Clive Dalton Happy sheep & happy worms Sheep have been farmed intensively for centuries in Britain before some of them were brought to New Zealand. Every ancient shepherd knew that ‘a sheep’s worst enemy was another sheep’, and the only way around this … Read more