ANN 121: Applied Animal Nutrition-I (2+1)

NATIONAL RESEARCH COUNCIL (N.R.C.) STANDARD

• In USA a sub-committee of the committee on Animal Nutrition under the auspices of the National Academy of Sciences - National Research Council (NRC) and US Department of Agriculture (USDA)recommended a nutrient allowance for dairy cattle which was first published in 1945. Since then they have been publishing the nutrient requirements for all types of farm animals .
• The standard includes digestible protein and total digestible nutrients and also includes the recommended requirements for calcium, phosphorus, carotene and vitamin D for dairy cattle, beef cattle, pigs, poultry, sheep, dogs, horses, laboratory animals etc.
• Today in a number of countries N.R.C. standards are followed where they use ME for poultry, DE for swine and horses, DE, ME and TDN for sheep, ME, TDN and NE_m and NE_g for beef cattle and for dairy cattle, values are given for DE, ME, TDN, NE_m and NE_g for growing animals with additional values as NE_l for lactating cows.