Changes in milk production in relation to changes in feeding and management practices in dairy herd improvement association herds.
D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002523:Edible Grain; D001330:Electronic Data Processing; D005260:Female; D007774:Lactation / Q000502:physiology*; D008892:Milk; D006109:Poaceae; D011247:Pregnancy; D013223:Statistics as Topic