منابع مشابه
Development of equations for predicting metabolisable energy concentrations in compound feeds for pigs.
In 2006 in Germany new recommendations for the supply of energy and nutrients to pigs were published, including a modification of the energy evaluation on the basis of metabolisable energy for pigs (MES). It was the objective of this meta-analysis to calculate equations that can be used for predicting MES in compound feeds for pigs on the basis of their nutrient concentrations. Data from digest...
متن کاملLaboratory variation of 24 h in vitro gas production and estimated metabolizable energy values of ruminant feeds
Intraand inter-laboratory variation of in vitro gas production and calculated metabolizable energy (ME, MJ/kg DM) values were studied using 16 test feeds in 7 laboratories. Intra-laboratory variation was low, with six of the seven laboratories having very high relationships in gas production between runs (R2 ≥ 0.96) and slopes that did not differ from unity. Inter-laboratory differences were hi...
متن کاملApplication of Artificial Neural Network and Support Vector Machines in Predicting Metabolizable Energy in Compound Feeds for Pigs
BACKGROUND In the nutrition literature, there are several reports on the use of artificial neural network (ANN) and multiple linear regression (MLR) approaches for predicting feed composition and nutritive value, while the use of support vector machines (SVM) method as a new alternative approach to MLR and ANN models is still not fully investigated. METHODS The MLR, ANN, and SVM models were d...
متن کاملDeterminants of energy density with conventional foods and artificial feeds.
The energy densities of conventional foods (Paul & Southgate, 1978) and artificial feeds (Livesey & Elia, 1985~) are usually calculated from their compositions, i.e. protein, fat and carbohydrate contents, and the energy conversion factors for these components. Most often the factors are metabolizable energy (ME) values; that is an amount of energy thought useful for doing physical or metabolic...
متن کاملStudies on the energy content of pigeon feeds I. Determination of digestibility and metabolizable energy content.
The digestibility coefficient and metabolizable energy (ME) content of the most important pigeon feeds (corn, wheat, barley, red and white millet, sorghum, canary seed, peas, lentils, sunflower, and hemp) were determined. The experiment was carried out using 10 adult male homing pigeons. All feeds were fed alone, in a whole-grain form, ad libitum. Drinking water and grit were offered to the bir...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1993
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(93)77512-8