Nutrient requirements of dairy cattle 
National Research Council, Subcommittee on Dairy Cattle Nutrition 
 - 7ª ed. rev 
 - Washington  National Academes Press  2001 
 - 381 p.  28 cm  1 CD-ROM 
<br/><br/><label>ISBN: </label>0309069971 
<br/><br/><label>Subjects--Index Terms: </label>Alimentacion de los animales Piensos Politica alimentaria Alimentacion Ganado ovino