Protein evaluation methods and systems in ruminants- Overview

This is a clear overview of principles to estimate the protein value of feeds for ruminants. As an addition to this paper, I would like to mention some modifications that have recently been introduced. In Europe, at least 3 revised systems have been published with improvements of these estimations: “Feed into Milk” (UK, 2004; C. Thomas, Ed), “NorFor” (Scandinavia, 2011; H. Volden, Ed), and “DVE/OEB2010” (Netherlands, 2011; van Duinkerken et al.,). Protein evaluation systems also include protein requirements for maintenance, gestation and lactation and adequate supply of rumen degradable crude protein for optimal microbial functioning in the rumen. I hope the author will present this part of the protein evaluation systems in a next contribution. Dr Ad van Vuuren, Wageningen UR and coordinator of EU-FP7 project “RedNEx”.

This is a wonderful review of the protein evaluation systems and provides a critical body of knowledge especially for the ruminant nutritionists with an interest in protein utilization. The comments on the recent additions is quite relevant and useful

Ad van Vuuren; Thank you so much for your valuable suggestion definitely I will include in next publication...

This is so succinct and indeed direct to the point. I have been seeking a well expository definition of the systems and I think I found it. Left with the UK systems....Smiles...Thank you a great deal