Zur Schätzung des energetischen Futterwertes anhand von analytisch bestimmbaren Kriterien

Zwierz, Piotr; Kuhla, S.; Weissbach, sc. F.

doi:10.1080/17450398109426851

Cited by 23 publications

(1 citation statement)

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“…The ether extract (EE) determination was conducted with HCl-hydrolysis according to Kuhla et al (1983). Starch content was determined by the method of Zwierz et al (1981) using starch digestion by a thermostable amylase and anthrone sulfuric acid as indicator reagent. Both NDF and ADF were determined according to Goering and Van Soest (1970).…”

Section: Methodsmentioning

confidence: 99%

Influence of Nutrition Level on Digestibility in High Yielding Cows and Effects on Energy Evaluation Systems

Gabel

Pieper²,

Friedel

et al. 2003

Journal of Dairy Science

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The objective of the study was to determine the effect of nutrition level (NL, multiples of maintenance energy requirement) on the digestibility of nutrients for dairy cows regarding the energy supply of the animal. The digestion of nutrients and energy was investigated in two trials using lactating dairy cows. The NL varied from 2.7 to 5.0 using diets similar composition. In addition, sheep were given the same feed with a NL of 1.4. Digestibility of dry matter (DM) and all specific measures of dietary components declined significantly as NL increased. Digestibility of energy decreased by 4.1% for each increase in NL. The metabolizable energy, the ability to metabolize energy (metabolizable energy/gross energy), and the content of net energy for lactation (NE(L)) per kilogram of DM intake were calculated for NL from 1 to 6 on the basis of these relationships and as well as the gross energy, methane energy, and urine energy. Accordingly the NEL content declined by 0.11 MJ/kg of DM intake or 1.6% as the NL increased by one unit. It means that the NE(L) requirement above the maintenance requirement increased by 0.07 MJ of NE(L) per kilogram of fat-corrected milk, if the NL increased by one unit.

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Section: Methodsmentioning

confidence: 99%