Contributions of animal nutrition research in rostock to energetic feed evaluation
作者:
M. Beyer,
W. Jentsch,
A. Chudy,
P. Junghans,
M. Klein,
期刊:
Archiv für Tierernaehrung
(Taylor Available online 1998)
卷期:
Volume 51,
issue 2-3
页码: 95-110
ISSN:0003-942X
年代: 1998
DOI:10.1080/17450399809381911
出版商: Taylor & Francis Group
关键词: Energetic feed evaluation;Efficiency of energy utilisation;Metabolisable energy;Net energy‐fat;Energy requirements of animals;Growth;Pregnancy;Lactation
数据来源: Taylor
摘要:
The Rostock research in animal nutrition has underlain in continuation and progressive development of Kellner's starch value system, net energy fat as measuring unit for energetic feed evaluation. Net energy‐fat was used as an uniform unit of measure for all farm animals with different performances. The scientific basis for the net energy‐fat system was created by numerous studies on energy retention and utilisation efficiency of pure nutrients and nutrients of feedstuffs and rations. For the estimation the energy content of feedstuffs and rations, multiple regression equations were derived on the basis of experimental results of the energy research group. The regressions for the estimation of energy values are used directly and modified in feed evaluation systems for practical use. The Rostock research group in energy metabolism created also essential contributions to factorial derivations of energy requirement of farm animals. In the presented paper selected results on maintenance energy requirement in relation to partial energy requirement values and utilisation efficiencies in growing, pregnant and lactating animals, especially cattle and pigs, are comprised. The Rostock results are compared to those from literature.
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