Faster horses said:
Since they cannot get enough out of a block to met their mineral
requirements, what does it matter what it contains?
Who says they can't get enough out of a block? Your researcher with his grant money - where did the grant money come from - was it a loose mineral sales company perhaps? :wink: :lol: :lol:
What is the objective here anyway - getting maximum mineral consumption or adequate mineral consumption? The original poster was looking for a way to persuade someone else to quit feeding blocks and start feeding loose - looking for a reason being the relevant part - no mention of the herd being plagued with open cows, ill health etc or likely they would have been looking at different options.
Oldtimer is concerned his water has too much salt and mineral for his cows so he has to give them his cows minerals in another form. Maybe his cows get all they need from the water? Has anybody thought or asked what the cow wants or needs? don't you think she is best placed to decide?
As for cost - we buy trace mineral salt blocks at @$10 for 20kg versus $35-$40 for 25kgs of loose mineral. Consumption of blocks is lower and it provides salt as well - no contest which is more economic on my place when both work equally well.