GI Flashcards
why do heifers tend to have poor colostrum
Leak milk prior to calving
Why do holsetins have poor colostrum
high production
leaving dairy cows with their calves leads to what?
FPT
name one complication of dystocia with regards to the calf
Aciodsis-inadequate igG uptake
what is the SG of good quality colostrum
1050
how much colostrum should a calf recieve
4L for first 4 hours
name 2 diseases that should be included in vaccine of a new born calf
K99. clostridium perfriengens C, D
When does the calf reach full immunological competence
3-4 months
name the type of toin carred by the enterotoogenic e-coli
heat stable
what does the heat stable to*in do?
Activates cyclic AMP& GMP. opens up Na channels
what is the most practical way of assessing FPT
sodium sulfite
what is the problem using TP in assessing FPT
dehydration/fibrinogen
why can e coli occur in such young calfs
high ph in abomasum after birth
what is a resuscitation fluid
polyionic/isotonic fluid. 145 meq/L
name 2 reasons why a calf with e coli becomes acidotic
diarrhea/hypovolemia- anaerobic metabolism
what is the formula for determining bicarb deficit
deficitBW0.4
what are the sources of bicarb and how do you apply it
baking soda, NaCO3
what is one of the main preventative methods for e coli
vaccinate cow
for how long and why can a diarrhea persist after microbiological cure of rotavirus
6-10 days. time for new enterocytes to mature
name 3 syndromes associated with corona virus
winter dysentary
PED
snots
BRD
what type of pathology is associated with corona virus in the gut
maldigestion/malabsorption
name 2 antiseptics that are effective against corona virus
chlorhe*idine
phenols
at what age can cryptosporidium parvum result in clinical disease
5 days
how is crypto transmitted
contact
aerosol
name 3 syndromes associated with c. perfringens type A
abomasum bloat and inflammation
hemorrhagic bowl syndrome
sudden death
what clostridium can cause acute deaths in young calve due to necrotic enteritis
type C
what clostridia should be included in a vaccine for a couple week old calves. one of them has the very potent epsilon to*in
Type C&D
what is a predisposing cause for the development of c. perfriengens type D
overeating
which 2 clostridia are associated with sudden death syndrome
type A
sordelli
what is the reason for considering using a systemic antibiotic in salmonella
septicemia
what is the meaning of a host adapted strain in salmonella.
resistant. develop carrier state
what organs may become affected by systemic salmonella
spleen, gall bladder, mesenteric LN
name 2 causes of parasite induced chronic diarrhea in cattle
cooperia
ostertagia
what does clostridium chauovei, septicemia and sordelli have in common
gram postitive, anarobes
