Equine Matters Winter 18 SP

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  matters Equine Choke Oesophageal obstruction,problems encountered Tetanus in horses The importance of regulartetanus vaccinations Lice and MitesPPID update Understanding this hormonaldisease affecting horses WINTER 2018 Equine Nasaldischarge What could this meanfor your horse?    W I N! £50.00 Jou le s G i f t Card...  See  in s ide  for de ta i l s All you need to know about these external parasites  02 Equine Matters Winter 2018 contents Winter Edition 2018 the editor XLVets Equine is a group of 27 equine practices spanning the length and breadth of the UK. We work together to share experience, knowledge, ideas and skills in order todefine and deliver the highest standards of equine health, care and welfare. Hello and welcome to the Winteredition of Equine Matters. This issue of Equine Mattersfinds me writing my welcome on board a trainhome from a ContinuingProfessional Developmentcourse in the Midlands. As vets, we are required to undertake a significant number of hours of further learning each year to allow us to remainpractising. Although this may be a requirement, updating our knowledge andskills to offer the best care possible to youand your horses is also a cornerstone ofXLVets Equine. I very much hope that viaEquine Matters we can also help to keepyou, as horse owners, up to date with the ever-changing face of equine veterinarycare. With that in mind, we have a variety of topics in this edition, including an update onPPID (formerly known as Cushing’s disease)- it’s not all old ponies with teddy-bear coatswe are talking about here either, and somevery thought-provoking information aboutequine genetic diseases that you may nothave ever considered before. And finally, we wish all our readers a merry Christmasand a happy, healthy 2019. Susan Donaldson Clyde Vets Tetanus in horses Tom Southall of DS McGregor & Partnersdetails this distressing and often fatal disease. Disease prevention 09 Respiratoryconditions 17 Abnormal respiratory noises Equine genetic diseases 11 Lizzie Royce of Hook Norton VeterinaryGroup explains how genetic diseases areinherited and describes four disorderscaused by defective genes. Nursing the infectious horse 15 Richard Meers of Fellowes Farm EquineClinic explains the necessary precautionsand care requirements when dealing withan infectious, ill horse. Happy endings - Respiratory noises 19 Keesjan Cornelisse from Calweton Equinetells the story of Cleopatra, a one-day-oldArab filly, who was snorting and chokingon her milk. Happy endings - a lameness case 20 Charlie Mitchell of Cedar Veterinary Groupreviews the case of Flash, an eight-year-oldpony who, thanks to his owner’s patienceand high standard of care, made a fullrecovery from a serious foot problem.Keesjan Cornelisse from Calweton Equinedescribes a range of respiratory conditionsand the noises they create. Equine lice and mites 03 Caroline Blake from Torch Equine Vets provides an explanation of the differencesbetween lice and mites, and advice on how best to control them. Investigation of a nasal discharge 05 Colin Mitchell of Scott Mitchell Associatesdescribes the common causes and categories of nasal discharge, and theinvestigation techniques used. An update on PPID 07 PPID used to be called Equine Cushing’sSyndrome. Rachel Pretswell of NorthvetVeterinary Group gives us an update on this increasingly common condition. Oesophageal obstruction(Choke) 13 Gillies Moffat from Seadown VeterinaryServices describes the causes of this common problem and the treatmentoptions.  03 As the colder months approach us, we no longer have the worry of the flies and midges of summer; in the winter months however, there are other externalparasites that can cause clinical problems in the horse. The most common of these are lice and mites. There are important differencesbetween lice and mites that all horse owners should be aware of. Equine Matters Winter 2018    E   x   t   e   r   n   a    l   P   a   r   a   s   i   t   e   s Equine Lice and Mites All you need to know about these irritating external parasites The winter months present the risk of external parasites thatcan cause problems inthe horse. Caroline Blake BVSc Cert ES (Soft Tissue)MRCVS Torch Equine Vets Lice There are two different lice types that commonlyaffect horses in the UK: the sucking louse- Haematopinus Asini , and the biting or chewinglouse - Damalinia Equis . The sucking louse tends to be larger (4-5 mmlong) and feeds by sucking the blood at the rootof the long mane and tail hairs. The smaller biting louse (1.5-2 mm) (Figure 1)feeds on dead skin cells causing intense irritationand tends to move around the body more especially in the flank and neck areas. Lice thrive in the horse’s denser winter coat and numbers reduce after coat shedding in the spring. Lice tend to affect horses with a less robustimmune system and so more commonly theyounger or older animals are affected. Horseswith underlying disease such as PPID (see page 7)or malnourished animals also tend to be moreseverely affected.Lice live their entire life-cycle on the horse. Theeggs are laid and stick to the base of the hairwhere they hatch into larvae and grow into adults. The eggs take 2-3 weeks to hatch, which is important to remember when treating these horses. The whole life cycle from egg to egg laying adult can take 30 - 40 days. Figure 1: Damalinia Equis Clinical Signs Horses with lice are primarily itchy. They willconstantly rub their mane or tails and maychew at themselves (Figure 2).The horse may appear restless. The hair-coatis often dull, with flaky dandruff visible.There may be patchy hair-loss and bareareas. In more severe cases horses will rubareas of skin until they become raw andbleeding. Scabbed areas may be apparent,as well as thickened skin patches. Very severe infestations may lead toanaemia due to the lice sucking blood, andsuch horses fail to thrive and may be in poorbody condition. Figure 2: Horse chewing flanks


Sep 22, 2019
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