Title: Determination of Digestive Degree and Metabolic Energy Values of Some Leguminous Feed Crop Harvest in Different Periods by In Vitro Gas Technique
Abstract:In this study the nutritive values of hays from Trifolium repens, Trifolium prantense, Mellilotus officinalis, Vicia sativa harvested at vegetative, flowering, seeding stages were evaluated by chemica...In this study the nutritive values of hays from Trifolium repens, Trifolium prantense, Mellilotus officinalis, Vicia sativa harvested at vegetative, flowering, seeding stages were evaluated by chemical composition and in vitro gas production techniques. In vitro gas production were determined at 0, 3, 6, 12, 24, 48, 72 and 96 h incubation times and their kinetics were described using the equation y = a + b (1-e-ct). In this study maturity had a significant effect on the chemical composition. Neutral detergent fibre (NDF), acid detergent fibre (ADF) and oil contents increased with increasing maturity whereas crude protein (CP) and ash contents decreased. The decrease in CP with increasing maturity ranged from %16.65 to 23.27. On the other hand the increase in NDF and ADF with increasing maturity ranged from %10.26 to 59.63 and %16.28 to 44.23. Maturity stage had also a significant (P<0.001) effect on in vitro gas production and estimated parameters. Potential gas production, in vitro dry matter digestibility and metabolizable energy (ME) contents decreased as maturity advanced. All estimated gas parameter except fermentation rate were negatively correlated with NDF and ADF contents. On the other hand ME and OMSD were positively correlated with CP. Therefore, Trifolium repens, Trifolium prantense, Mellilotus officinalis, Vicia sativa can be harvested at vegetative stage to obtain forage with higher metabolizable energy content and digestibility.Read More
Publication Year: 2018
Publication Date: 2018-01-01
Language: en
Type: article
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