Cows Flashcards
What is low magnesium also known as?
staggers
grass tetany
peracute low magnesium signs?
hyperaesthesia eat twitching sensitive to sound staggers and collapse jaw champing sudden death high HR
sub acute low mg signs?
slow onset spasmodic urination and defecation muscle tremor staggering gait high HR
chronic low mg signs?
poor appetite
low yield
more vocal
high HR
low mg treatment
bottle of Ca borogluconate with Mg hypophosphate slowly by IV
Mg sulphate 25% subQ
hypoMg prevention
Mg O in conc
Mg oral bolus
Mg in water
hypo Ca other names?
bovine parturient paresis
acute flaccid paralysis
milk fever
How is Ca homeostasis
absorption from GIT, kidney, bone is PTH present
active vit D
Mg needed as a co-factor
normal blood ca = 2.3 - 3.2
hypo Ca subclinical
hypersensitive excitable tremors ear twitching ataxia bloat / gas
blood ca 1.8 - 2.3
moderate hypo Ca
sternal recumbency depressed dry muzzle cold extremeties bloat / gas no defecation delayed / absent pupil response
blood ca = 1.2 - 1.8
severe hypo ca
reduced consciousness lateral recumbency unresponsive to stimuli muscle flaccidity reduced CO bloat death
blood ca = less than 1.2
treatment of hypo ca
- 20% Ca borogluconate - slow IV
- sub Q Ca to prevent recurrence
monitor HR
pass dung , eructate and sit up = good
cause of hypo Ca
decreased feed intake
old cows cant access bone
channel breed
altered kidney absorption
prevention of hypo Ca
low Ca in dry cow and high in lactating
Mg supply
DCAB
drench / bolus high risk cows
hypo P
happy downer cow
from high ca in food so low PTH so low P
give foston IV
what is DCAB?
dietary cation / anion balance
monitor urine ph