diseases of neonatal lambs Flashcards
how much colostrum does a lamb require
50ml/kg first feed
200ml/kg in first 24 hrs
how would you treat primary hypothermia
inject glucose intra peritoneal first THEN warm up.
if warm up first lamb can have hypoglycaemic fit
what are the clinical signs of watery mouth disease and when does it happen
dull, unwilling to suck, profuse lacrimation, constipation
death within 24 hrs.
occurs between 12 and 72 hours of age
what is watery mouth a result of
endotoxaemia due to mass lysis of gram negative bacteria.
Occurs due to lack of colostrum resulting in bacteria being absorbed into gut.
which pathogen is responsible for lamb dysentery
clostridium perfringes type B
when does lamb dysentery occur
between 1-3 days of age
what is seen on PM following lamb dysentery
bloody peritoneal fluid, pale friable liver and dark red intestines
how to prevent lamb dysentery
vaccinate ewes with heptavac p
what is seen in lambs with enterotoxigenic E.coli
watery brown diarrhoea between 24 and 48 hrs old
what is seen in a lamb with neonatal salmonellosis
profuse watery diarrhoea with dehydration
what are the clinical signs of drunken lamb syndrome
lambs stop drinking milk, become lethargic and ataxic
what causes drunken lamb syndrome symptoms
D-lactate acidosis
drunken lamb treatment
mix 400ml water with 35g NaCO3 then give the lamb 50ml of this solution.
(high mortality regardless)
when is drunken lamb syndrome seen
either at around 10 days old or between 1-2 months old
what age is joint ill seen in lambs
2-3 weeks old
what is the causative agent of joint ill and how do you treat
streptococcus dysgalactiae
penecillin and NSAID to treat
what is another form of joint ill that is seen although much rarer
infectious arthritis caused by erysipelothrix rhusiopathie found in the soil.
affects lambs between 6 weeks and 6 months of age.
bacteria enters through skin wound
penecillin for 5+ days
what pathology is seen with navel ill and what is the causative agent
hepatic necrobacilliosis caused by fusobacterium necrophorum. White spots seen on liver grossly
three deficiencies affecting lambs
- iodine
- copper
- white muscle disease
what is the result. of iodine deficiency in the ewe. how to treat
goitre in newborns.
lambs aborted with minimal fleece.
supplement ewe or give 20mg iodine per lamb orally
what is the result of copper deficiency
swayback lambs
poor wool quality, head tremor, tendon abnormalities
what is seen with white muscle disease
degeneration of skeletal and cardiac muscle. weak lambs with difficulty suckling seen.
supplement ewes 6 wks pre lambing
what causes profuse bloody diarrhoea in lambs 3-7 days old
cryptosporidium
supportive treatment with fluids
what age do lambs get coccidiosis
4-8 wk old
diarrhoea, tenesmus, fever , WL
what age are lambs susceptible to nematodirus battus
6-12 weeks old
