angus9259":zbnv4gfh said:
Thanks. I'll check online - I use Ivomec injectible and pour on.
I wonder . . . wouldn't that parasite show up in a fecal exam? Fecal's were clean.
Liver Fukes maybe????
"Infection by the common liver fluke, fasciolosis, can present in three forms:
Chronic, which is often fatal in sheep, but rarely in cattle which can develop resistance. Acute, which must be differentiated from "black disease," an infectious necrotic hepatitis caused by toxins produced by Clostridium novyi, type B. Signs of chronic fasciolosis include: anemia,
edema about the lower jaw (bottle jaw), decreased market weights, and unthriftiness. (Dairy cattle experience decreased milk production.)"
"Keep in mind that a routine fecal exam won't pick up liver flukes; your vet will probably need to send a specimen to a lab for special analysis."
"Parasite Type
Lungworms and liver flukes do not produce eggs that are detectable with routine fecal flotations."
"Ivermectin is a macrocyclic lactone anthelmintic belonging to the class of avermectins. It has a potent and broad anti-parasitic spectrum at lower dose levels. It facilitates the release of GABA (gamma amino butyric acid) an inhibitory neurotransmitter. This in turn causes the paralysis and death of immature and mature nematodes, as well as arthropods, however,
ivermectin is not effective against liver flukes or tapeworms since they are not users of GABA. "
Angus9259 - while Ivermectin won't nail Liver Flukes,
Ivormec Plus will kill adult Liver Flukes as will Valbazon (Caution: Do not administer to female cattle during first 45 days of pregnancy or for 45 days after removal of bulls. Do not use in female cattle of breeding age).
Don't forget the possibility of Johnes Disease too.