Collection and Summarization of Feed Composition Data. I. The National Research Council Feed Nomenclature System

Autor: Harris, Lorin E., Crampton, Earle W., Knight, Arlin D., Denney, Alice
Zdroj: Journal of Animal Science; November 1968, Vol. 27 Issue: 6 p1743-1754, 12p
Abstrakt: N.R.C. feed names are constructed by combining eight name components (to the extent that the information is available or applicable which together describe a feed as to its contents and physical nature. These components are: (1) origin or parent material; (2)species, variety or kind; (3) part actually eaten; (4) process(es) undergone; (5) stage of maturity; (6) cutting or crop; (7) grade or quality designations and (8) classification. These components appear in the same order in each name, beginning with the origin, thus facilitating an alphabetical arrangement when defined for official purposes or listed in feed composition tables.The format for tables to be used in future N.R.C. nutrient requirement reports and publications on feed composition will allow inclusion of the following identifying information:(1) scientific name of the origin and species, kind or variety, if given; (2) the N.R.C. name; (3) the feed class; (4) the Association of American Feed Control Officials name; (5) the Canada Feeds Act name; (6) other common names; (7) the feed reference number; and (8) the country and region and/or state from which the data originated.Up to 90 or more nutrient and energy values can be reported for each feed. Energy values will be reported on a calorie and TDN basis. Data will be reported with the mean values on an “as fed” and a “dry” basis and will include the number of analyses averaged into the mean and the coefficient of variability.
Databáze: Supplemental Index