Estimating grass and grass silage degradation characteristics by in situ and in vitro gas production methods (CROSBI ID 509100)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kiš, Goran ; Grbeša, Darko ; Kostelić, Antun ; Karolyi, Danijel
engleski
Estimating grass and grass silage degradation characteristics by in situ and in vitro gas production methods
Fermentation characteristics of grass and grass silage at different maturities were studied using in situ and in vitro gas production methods. In situ data determined difference between grass and silage. Degradable fraction decreased as grass matured while the undegradable fraction increased. Rate of degradation (kd) was slower for silage than fresh grass. Gas production method (GP) data showed that fermentation of degradable fraction was different between stage of maturity in both grass and silage. Other data did not show any difference with the exception for the rate of GP of soluble and undegradable fraction. The in situ degradation characteristics were estimated from GP characteristics. The degradable and undegradable fractions could be estimated by multiple relationships. Using the three-phases model for gas production kd and fermentable organic matter could be estimated from the same parameters. The only in situ parameter that could not be estimated with GP parameters was the soluble fraction. The GP method and the three phases model provided to be an alternative to the in situ method for animal feed evaluations.
Grass; In situ; Gas production; Maturity
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Podaci o prilogu
142-144-x.
2005.
objavljeno
Podaci o matičnoj publikaciji
Podaci o skupu
13th International Symposium « ; Animal Science Days» ;
poster
12.09.2005-15.09.2005
Padova, Italija