Journal of Dairy Science · 1945 · 15 citations · 9 references
AgricultureAnimal SciencesDairy ScienceCrop ProductionLactationLivestock ProductionAgricultural Production SystemsConcentrate FeedingDairy ProductionMilk ProductionMilk Production ManagementConcentrate FeedsConcentrate SupplementationDairy Production Systems
Numerous investigators A high producing cow is incapable of consuming sufficient alfalfa hay to meet her energy requirements during the early part of the lactation period; but even in later lactation, when she is consuming adequate nutrients to meet her requirements as judged by the lV[orrison ( The lack of persistency in production suggests a deficiency of some nutrient or nutrients.
9
F. B. MORRISON · Soil Science · 1936 · 1K citations
Dairy Cattle and Milk Production
K. W. D. Campbell · Nature · 1940 · 23 citations
Phosphorus requirement of dairy cattle when alfalfa furnishes the principal source of protein.
C.F. Huffman, C.W. Duncan, C. S. Robinson et al. · 1933 · 16 citations
Agriculture, Agronomy, Dairy Science +13