whole herd lost condition

[3waycross]

Its up to their bellies.

Depending on what it is and the stage of maturity they can starve with grass up to their bellys.
I,m not saying this is the case but it's something to think about

They can also "starve" with their heads in a full hayring.

 

[Floyd]

Fertilizer run off in the canal?

Maybe pull some soil samples on the pasture.

 

[upfrombottom]

we did stool and blood samples last night. we will test blood for selenium, copper, iron, sulfur, zinc, and magnesium. stool will be tested for various parasites and just a general culture. 3 animals will be tested for johnes.

Any results?

 

[TexasBred]

Its up to their bellies.

Depending on what it is and the stage of maturity they can starve with grass up to their bellys.
I,m not saying this is the case but it's something to think about

They can also "starve" with their heads in a full hayring.

Absolutely and I'm afraid more cattle are eating that crap than good hay. Nobody knows...they just roll it up and feed it and if the cow starves or looks like he&& it's their fault.

 

[Stocker Steve]

I add copper sulfate to the mineral mix and have good pasture. If some are still are poor doers then I usually bring them to town.

I kept one heavy milking simi/angus that sounds like yours. May want to consider early weaning till you figure this out.