Journal of Animal Science and Technology (JAST) is a peer-reviewed, open access journal publishing original research, review articles notes in all fields animal science. Topics covered by the include: genetics breeding, physiology, nutrition monogastric animals, ruminants, products (milk, meat, eggs their by-products) processing, grasslands roughages, livestock environment, biotechnology, behav...

The history of evaluation of the nutritive value of feedstuffs is reviewed, leading into a description of the development of the artificial fibre bag technique. me type of material and construction of the bag are described in detail and preparation of the samples and incubation times are also discussed. Applications of the technique to a study of the rumen processess; degradation of protein sup...

In this study, total roughage production and its sufficiency for farm animals in Turkey was evaluated. Because of insufficient production, feed prices are relatively high fluctuating Turkey. It estimated that, the 40 363 210 tonnes roughages supplied by meadows pastures (13 164 tonnes), shrublands (11 267 000 tonnes) forage crops (15 932 tonnes). addition, straw stubble as 31 074 800 animal fee...

Three experiments were conducted to determine the concentrations of phenolic monomers (para-coumaric acid, ferulic acid, vanillin, acetovanillone, para-hydroxybenzaldehyde and para-hydroxyacetophenone) and polymers (lignin) in roughages and to assess the fate of these compounds in the ruminant digestive system. In Exp. 1, low quality t imothy hay and cottonwood, silver maple and red oak sawdust...

D IGESTION experiments with cattle fed simplified rations produced results in this laboratory indicating that efficiency of roughage dry matter digestion was dependent upon the presence or absence of certain ration nutrients or feed components needed by rumen microorganisms. The nutrients or feed components which favorably influenced roughage digestion in cattle experiments were protein (N X6.~...