Various ingredients and roughages of known chemical composition have been analysed by several physical methods: particle density, particle size, water holding capacity, feed solubilisation and osmotic pressure. Some of these methods already exist and have been adapted and others have been newly developed. All of the methods are quite easy to perform and the results are very repeatable. The data...

The disappearance of total N, non-protein-N and amino acid-N after washing, rumen incubation and intestinal passage of sugarbeet pulp, maize-gluten feed, maize feed meal, palm kernel meal, soyabean hulls, soyabean meal, grass silage, maize silage and concentrate was measured in four dairy cows using nylon-bag techniques. Disappearance of amino acid-N after washing varied between feedstuffs from...

The nutritional value or quality of dietary proteins used for poultry feed formulation varies: amino acid availability is an important measure of protein quality. Determination of ileal digestibility values has become the preferred method for estimating amino acid availability. This review discusses the different approaches to the expression of digestibility results, including correction for en...

ferent among treatments. Protozoal counts were not different among treatments (P > 0.05) in ruminal or omasal samples. Generic protozoal counts were not different (P > 0.05) among treatments, corresponding with similar banding profiles from DGGE. Multivariate statistics showed no difference (P > 0.05) in generic distribution of protozoa in ruminal vs. omasal samples, supporting absence of selec...

W62 Comparison of classical and marker method, using three different markers and two analytical techniques, for the measurement of apparent digestibility in swine. L. L. Oetting*1, A. L. Abdalla1, J. D. F. Gomes2, A. R. A. Nogueira3, and C. E. Utiyama1, 1Universidade de Säo Paulo, Piracicaba-SP, Brazil, 2Universidade de Säo Paulo, PirassunungaSP, Brazil, 3Empresa Brasileira de Pesquisa Agropecu...

The objective of this study was to evaluate the effects daily supplementation with a low dosage blend condensed and hydrolysable tannins on in vitro situ digestibility protein fibrous feedstuffs. In ruminal incubation assays were conducted seven five roughage feedstuffs without tannin (1 g/kg DM intake). From these same cattle, rumen fluid collected for incubations we evaluated gas production (...

acid-binding capacity (abc) of a feed is the amount of acid required to reduce the ph of feed to a special level such as 3. all poultry feed ingredients used in this study were collected from feed mills in iran. the ph and abc were determined using the standard methods in deionized and magnetized water at room and body temperatures. the ph of most feed ingredients was raised in magnetized water...