1. Lactation responses to postruminal administration of proteins and amino acids;Clark;J Dairy Sci,1975
2. Duke's physiology of domestic animals;Swenson,1984
3. Nutritional ecology of the ruminant;Van Soest,1994
4. Digestive physiology and metabolism in ruminants;Ruckebusch,1980
5. The rumen and its microbes;Hungate,1966