Effect of line reactivity and percent on production by dairy .Seventy-two Holstein cows (16 first lactation) were assigned to four treatments: A) normal-grind line (800 to 1000 mu) added to provide .77% calcium (total.line added to stone,Instant stone (just add water!) - The Roots of ProgressJan 6, 2018 . Instant stone (just add water!) . Stone would be ideal. . What distinguishes line and makes it useful is a high calcium content ("calcium".
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