Building a North American Feed Information System (1995) / Chapter Skim
Currently Skimming:
5 Making the Concept a Reality
5 Making the Concept a Reality
Pages 52-60
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 52... ...
The teaching and research segments of universities, the cooperative extension service, and private animal nutritionists generate and use feed nutrient data. The federal sector of U.S.
|
From page 53... ...
The advisory group must have viable contacts throughout North America with industry and the land-grant university system. This can be facilitated by subsidizing or contracting for data acquisition services at public institutions and laboratories located throughout North America.
|
From page 54... ...
The usefulness of the feed information system will depend primarily on the accuracy and completeness of the chemical composition data that it contains. Therefore, a system for uniformly describing feeds needs to be developed, as should strict guidelines for the laboratory procedures that should be used to determine the nutrient composition of feeds and a system for quality control and standardization across the laboratories that submit data.
|
From page 55... ...
In addition, optional information that would add to the completeness of the data on grains or plant products would include cultivar, storage conditions, soil fertility, soil type, altitude (in the case of forages) , stress conditions during growth, physical measurements (such as particle size)
|
From page 56... ...
In ruminants, for example, fiber and protein analyses are used to predict energy availability; crude protein concentration and degradability are used to estimate ruminally undegraded protein; amino acid concentrations are adjusted for intestinal digestibility; and mineral concentrations are corrected for bioavailability. A chemical composition data base may provide a
|
From page 57... ...
Better measures of feedstuff energy value include digestible energy, metabolizable energy, which may or may not be corrected for gaseous energy losses (and nitrogen losses in the case of poultry) , and net energy for maintenance, gain, and lactation.
|
From page 58... ...
W#b Rand to data obtained Tom giber counthcs, chemical data ~iU be used Ukc any chemical and biological data obtained Tom Canada and Mexico. Data generated by commercial laboratories and industry would be very useful, but companies that spend l~pc sums of money each year far chemical analyses of edstu~ may be reluctant to sac Al of their in~rmabon.
|
From page 59... ...
The managers of the data base should go beyond passively collecting compositional data supplied by industry and service laboratories and gathering data from the scientific literature and should actively participate in the identification of data needs, create standards of data acceptability, and establish mechanisms to ensure the accuracy of the data included in the data base. Data base managers should be involved in determining acceptable laboratory and sampling procedures and in actively collecting compositional and bioavailability data not readily available from other sources.
|
From page 60... ...
A budget adequate to account for the routine costs incurred by similar data bases already In operation, costs associated with inflation, and costs of timely and efficient information gathering and dissemination is recommended. Two data bases (USDA's National Nutrient Data Bank and the Germplasm Resources Information Network)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.