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Proximate analysis of feed stuffs (Weende system) has been widely used in many countries. But, in this system, it has long been recognized that fraction of carbohydrates and lignin is imcomplete with respect t othe chemical charac terization and nutritive availability.
It is often referred to as the Weende’s System of Analysis and is principally devised to separate carbohydrates into two broad classifications; crude fibre and nitrogen free extract (NFE). The system consists of determinations of water, ash, crude fat (ether extract), crude protein and crude fibre.
It is often referred to as the Weende System and was principally devised to separate carbohydrates into two fractions: crude fibre and nitrogen free extract (NFE). The system consists of determinations of water, ash, crude fat (ether extract), crude protein and crude fibre.
Select “Analysis” and then method “CF - Crude fiber (Weende method)” including the following parameters: • Crucibles porosity P2 • Preheat: Yes • Enzyme: No • H 2 SO 4: 150 ml • N-octanol: Yes • Digestion time: 30 minutes • Washing: 3 x 50 ml of distilled water • KOH: 150 ml • Digestion time: 30 minutes
The proximate system for routine analysis of animal feedstuffs was devised in the mid-nineteenth century at the Weende Experiment Station in Germany (Henneberg and Stohmann, 1860, 1864). It was developed to provide a top level, very broad, classification of food components.
Apr 27, 2021 · Initially, the Weende system of proximate analysis (i.e., moisture, CP, crude fiber, crude fat, nitrogen-free extract, and ash) was developed in an attempt to relate chemical composition of feed ingredients to their nutritional value at a time in history when very little was known about energy and nutrient digestibility of ingredients or ...
terms. One of the oldest systems of analysis is the Proximate Analysis, also called Weende system. It describes the feeds in terms of crude protein (CP), Handbook for Straw Feeding Systems Kiran Singh and J.B. Schiere (eds.), 1995 ICAR, New Delhi, India
