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Camelids
asdf
36
Veterinary Medicine
Graduate
11/28/2015

Additional Veterinary Medicine Flashcards

 


 

Cards

Term
natural habitat
Definition

peruvian andes

35000 above sea level and up

cold nights, hot days

 poor pasture 

Term
Dentition
Definition

 

  • Lower incisors and dental pad

  •   Lower canines and laterally placed upper incisors- ‘fighting teeth’- need cutting in males

  •   Five cheek teeth: 2 pre- molars, 3 molars 

Term
GI tract
Definition

 

  • Saliva production ≈4L/day (llama)

  •   Foregut fermenters, 3 chambers (C1- C3), regurgitate, cud, eructate and spit.

  •   C1: Rumen analogous, C2: Reticulum analogous, C3: Only caudal 20% acidic, glandular

    stomach.

  •   Slow gut transit

  •   Very efficient water resorption: sometimes may not scour even with serious GIT Disease.

  •   Normally pelleted faeces. 

    - dont starve

Term
locomotion
Definition

 

  • Tylopods: Weight bear on P2 and leathery sole.

  •   Nail just for grip, trim back level with sole.

  •   Kick in all directions. 

Term
Fleece
Definition

 

  • Alpaca: Fibre fine, soft and dense. ‘No itch’, medullated (hollow) fibre- very warm. Shear annually- if unshorn danger of over- heating and flystrike.

    Llama: coarse guard hairs and soft undercoat. Labour intensive to seperate 

Term
Iv Access
Definition

 

  •   Right Jugular Vein

  •   Distal third of neck

  •   Ventral projection of 5th and 6th cervical vertebrae- can palpate them 

  •   Jugular filling not visable 

Term
Maturity
Definition

 

  1.  

    •   Male: 2.5 years- preputal adhesions until then, surgical removal at 3 years if required.

    •   Female: 1.5 years, often not bred until 2 3 years.

      Mate in cush position.

Term
misaliance
Definition

 

  1. Terminate with PGF2α from 6 – 100 days: Alpaca 1ml, llama 2ml.

Term
gestation
Definition

 

  1. Variable length 340 +/- 25 days (approx. 11 months). Foetal oversize rare. Twins rare. 

Term
pregnancy diagnosis
Definition

 

  1. Left flank ultrasound 3.5 mHz probe. Not before day 40.

Term
Induction of parturition
Definition

 

  1. PGF2α within 10 days of due date.
    Stage 1 labour: 1.5 2 hours
    Stage 2 labour: 0.5 hour
    Dystocia uncommon- remember long neck and limbs.
    Healthy Cria: Normally sit up in 10 minutes, stand in 1 hour, nursing in 3
    4 hours.

Term
Failure of passive transfer
Definition

 

  • Total protein <5g/l, low IgG, Sodium sulphate turbidity

  •   Can give sheep or goat colostrum

  •   Frozen plasma transfusion

    Weaning: approximately 6 months. 

Term
Retained foetal membranes
Definition

 

  • - similar to horses- go endotoxic fast 

    Should be expelled within 6 hours

  •   Oxytocin 20 30 IU IM, antibiotic and NSAID.

  •   Gentle manual removal 

    - no cotyledons 

Term
Castration
Definition

 

  •   From 1.5 years old

  •   Standing sedation or GA/heavy sedation for lateral or ventral (up on a bale) recumbancy

  •   Local in cord

  •   Open technique

  •   Ligate with absorbable suture

  •   Leave skin incision open 

Term
Endoparasites
Definition

 

  1. Worms

  2.   Low resistance, small burdens significant

  3.   Haemonchus, Ostertagia, Cooperia, Trichostrongylus, Capillaria, Nematodirus, Trichuris

  4.   Beware co- grazing with sheep

  5.   FWEC’s low sensitivity- false negatives. Modified Stoll’s more sensitive (down to 5 epg) than

    McMasters.

  6.   Avoid pooled samples

  7.   May not scour even with heavy burdens (adaption to arid climate)

  8.   Severe anaemia with Haemonchus can be as low as 6% (24 -28% adequate) Transfusion

    may be required- check smear for Mycoplasma haemolamae.

  9.   Use sheep wormers 

Term
Fluke
Definition

 

  • Fasciolosis regionally common

  •   Some owner’s unaware

  •   Anaemia, ↓ Alb, ↑GGT.

  •   Faecal sedimentation: beware false negatives!

  •   Triclabendazole

  •   Closuron 7mg/kg PO twice every 60 days

  •   Albendazole 10- 20 mg/kg PO NOT CRIAS! - beware of toxicity 

Term
Coccidiosis
Definition

 

  • Adults more resistant than crias but stressed/immunocompromised

  •   Eimera macusaniensis (“I-mac”): Long prepatent period (33 - 43 days), oocytes large, brown,

    thick walled and tear drop shape. Dramatic weight loss. Hypoalbuminaemia with normal

    PCV.

  •   Cryptosporidiosis and giardiasis also.

  •   Sulfonamides (sulfamethoxine 160mg/kg BID 5 days). Toltrazuril. 

Term
Blood parasites
Definition

 

  • Mycoplasma haemolamae endemic globally. Healthy animals mount good immune response.

  •   Diagnosis on FRESH blood smear. Wright’s geimsa stain- blue organisms on RBS surface.

  •   Important differential for anaemia.

  •   Oxytetracycline LA 20mg/kg q3d for 5 doses, treats but does not clear. 

Term
Mange
Definition

 

  • Sacroptes, Psoroptes, Chorioptes

  •   Lesions inguinal, perineal, axilla, vetrum, inside forelimbs, (face and ears- esp. Psoroptes).

  •   Pruritus, crusting, scaling, +/- 2ary pyoderma.

  •   Skin scrapes

  •   Sarcoptes: Ivermectin 0.5- 0.6mg/kg SC every 7- 10 days four times or bathe with Amitraz.

  •   Other species: wash skin with Sebomild P (keratolytic/keratoplastic), rinse and apply

    fipronal. 2 or 3 times weekly for 3 weeks or more.

  •   Zinc supplement if deficient 

Term
Lice
Definition

 

  •   Sucking lice: Injectable avermectins

  •   Chewing lice: Topical treatment

    Ringworm: Griseofulvin 10 mg/kg, MalasebTM Dermatophilosis (Dermatophilos congalensus)

Topical chlorhexadine or povidone iodine- remove crusts, penicillin 5-7 days. 

Term
allergic skin disease
Definition

 

  • Rule out other causes first

  •   Allergen blood sample possible, can use hyposensitisation therapy. 

Term
Anemia
Definition

important differential

- hypoproteinaemia also important 

Term
clostridial disease
Definition

 

Tetanus

  Enterotoxaemia (Cl. perfringens type A): Pyrexia and profuse diarrhoea

  •   (Malignant oedema/Braxy (Cl. septicum) in N and S America)

  •   Vaccinate! Protocol? Primary course at 4- 6 weeks then 2-3 weeks later, annual or bi-

    annual boosters, pregnant females vaccinated 4- 6 weeks before parturition. 

Term
mandibular osteomyelitis (lumpy jaw)
Definition

 

  • Swellings +/- draining tracts. Fusobacterium Necrophorum and others.

  •   Penicillin/cephlosporins +/- surgery

Term
abscesses
Definition

 

  • A. pyogenes, Staph aureus.

Term
pneumonia
Definition

 

  • Pasteurella multocida, Maenhiemia haemolytica, (BRSV, PI3, BVD) 

Term
alpaca fever
Definition

 

  • Streptococcus equi subsp zooepidemicus

      Acute, sub- acute and chronic disease possible.

  •   Anorexia, recumbancy, pyrexia (≈41oC), +/- dyspnoea/ colic/ abdo pain

  •   Sudden death

  •   Die in 4 8 days

  •   Antibiotics, fluids, NSAID, lance abscesses

  •   Endemic in Peru

  •   Zoonotic? Spread by horses? 

Term
TB
Definition

 

  • 71 herds diagnosed infected nationally

  •   Severe post mortem lesions

  •   Chronic wasting +/- chronic cough +/- dyspnoea +/- diarrhoea

  •   Intra-dermal test unreliable: Sensitivity 5%?!

  •   Snap test- Chembio Rapid Stat TestTM: Sensitivity 68.8% Specificity 97.7%. Sensitivity

    improved by intra-dermal testin previous 10 30 days. Idexx test- similar.

  •   X- ray diagnosis possible- whole herd screening

  •   Not livestock so no mandatory testing and no compensation however infected herds may be

    placed under restriction. 

Term
Johne's Disease
Definition

 

  • Chronic wasting. Usually less than 2 years old.

  •   Hypoprotienaemia. Terminally diarrhoea. 

Term
BVD
Definition

 

  • Infection from cattle or alpaca

  •   Pathogenesis the same as cattle

  •   Acute infection transitory ( pyrexia/anorexia/milk drop/ pneumonia)

  •   Abort/stillbirth/PI’s/ mucosal disease risk period during gestation unknown 

Term
Foot and Mouth
Definition

 

  • Pyrexia, anorexia, vesicles- tongue, mouth, coronary band, interdigital space.

  •   Notifiable, restrictions would apply in an outbreak, positives taken by ministry. 

Term
Orf
Definition

- zoonotic- warn owners

- differentiate from mange and ringworm

 

Term
Gastric ulcers
Definition

 

  •   Common. Stress related- Environmental, social, metabolic, 2ary to other Dz

  •   C3 80% non- glandular, 20% glandular- ulcers occur at zone of demarcation.

  •   C/signs vary with severity: Vague colic → peritonitis

  •   Gastroscopy not possible, occult faecal blood unreliable

  •   Thickened wall C3 on ultrasound

  •   Treatment: Oral sucralphate, injectable H2 antagonist or proton pump inhibitor

  •   Ruptured ulcer- surgery 

Term
sick alpacas
Definition

 

Sick Alpacas are often hyperglycaemic- DO NOT GIVE INSULIN!

Term
Therapeutics
Definition

 

NOTHING LICENCED IN THE UK FOR ALPACAS!

So prescribing cascade left wide open

BUT “There must be sound and recorded clinical reason” behind any therapeutic choice

Get signed consent from the client
Medication can be given IV, IM, SC or PO

  • SC most popular

  • IM hard as little muscle mass quadriceps,

semitendinous/semimembranous mm. best

IV access can be tricky 

Term
sedation and anaesthesia
Definition

 

Sedation with Xylazine
Dose range gives ranging sedation from standing to recumbent

Triple combination “Ketamine Stun”
Xylazine, Ketamine & Butorphanol
Good sedation, recumbency and analgesia

Can intubate and put on Isoflourane 

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