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Product System Model for Beef Production 2011

    Product system boundaries (cow-calf-finisher, CCF) include all material and energy flows associated with crop production and live cattle operations. Cattle inventory flows include the cow-calf operation and end with market weight finisher cattle and culls resulting from one full year of operation. The total live weight produced in one year is 2914841.44 kg and is comprised of the following animals: Finished cattle: 3724 (581 kg/finisher), Culled cows: 1156 (636 kg/cow), Culled bulls: 58 (908 kg/cow). These data were developed using Integrated Farm System Model and are intended to represent the MARC cattle operation in Nebraska in 2011. The data were a product of a project funded by the National Cattleman's Beef Association.

    National Animal Nutrition Program (NANP) Feed Composition Database

      This database was developed by the [Feed Composition Sub-Committee](https://animalnutrition.org/node/38) and serves as a freely-available, centralized resource for up-to-date nutrient composition data for feedstuffs commonly fed to animal species. There are currently 123 ingredients and 129 nutrients represented in the database.

      National Plant Germplasm System

        The U.S. National Plant Germplasm System (NPGS) is collaborative effort to safeguard the genetic diversity of agriculturally important plants.

        NUOnet (Nutrient Use and Outcome Network) database

          The Nutrient Uptake and Outcomes (NUOnet) database will be able to help establish baselines on nutrient use efficiencies; processes contributing to nutrient losses; and processes contributing to optimal crop yield, nutritional and organoleptic quality. This national database could be used to calculate many different environmental indicators from a comprehensive understanding of nutrient stocks and flows.

          Product System Model of United States Poultry Production 2010

            This product system represents the poultry meat produced for human consumption as a result of producing one broiler. Both types of live weight poultry are at the farm gate, ready for transport to the processing plant, although not necessarily at the same farm. It includes the fraction of a spent hen attributable to the production of one broiler.