Abstract
Hydroponics of fodder production allows to deliver on an industrial basis cultivation of high quality green forage. Merits and demerits of hydroponics are shown. Standardization of the "know-how" and hydroponic fodder quality is necessary to get the forage of preset properties. The basic attention in a review is given to quality indicators to be standardised and namely to organoleptic signs, dry matter content, metabolizable energy, crude protein, non structural carbohydrates. Terms and definitions of «hydroponic fodder» and its separate components are definately designated. On the basis of numerous sources it is established, that a content of the basic nutrients in hydroponic fodders are varying over a wide range: dry matter – from 100 to 400 g in 1 kg of a forage, crude protein — from 76 to 367 g/kg DM, crude fiber – from 168 to 228 g/kg DM, crude fat — from 19 to 76 g/kg DM, crude ash — from 17 to 107 g/kg DM. Such range of concentration of nutrients allows to form a quality gradation. Data of a zootechnical evaluation of hydroponic fodder in rations of various animal kinds are cited.
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