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Projects / Programmes source: ARRS

The effect of pure energy restriction (in combination with aspirin) in growing pigs and chickens

Research activity

Code Science Field Subfield
4.02.02  Biotechnical sciences  Animal production  Animal nutrition 

Code Science Field
B420  Biomedical sciences  Nutrition 
Keywords
energy restriction, aspirin, carnitin, protein deposition, body composition, fet tissue, muscle tissue, pig, poultry
Evaluation (rules)
source: COBISS
Researchers (3)
no. Code Name and surname Research area Role Period No. of publications
1.  00886  PhD Janez Salobir  Animal production  Principal Researcher  1999  625 
2.  00396  PhD Karl Salobir  Animal production  Researcher  1999  300 
3.  15468  Jože Stopar  Animal production  Researcher  1998 - 1999  20 
Abstract
During the growing period animals are inclined to fulfil the inherited ability for growth. The speed of growth is connected to the growth of tissues (growth waves), in the period of the most intensive growth mostly with deposition of proteins (muscle tissue) and fat (fat tissue). The deposition of proteins (in case of adequate nutrition) depends primarily on the ability of protein deposition, in addition in growing animals the growth of muscular tissue takes precedence over the deposition of fat tissue. If animals are fed restricted or deficient, the growth of (some) tissues is slowed down depending on the kind of tissue and a level of restriction or deficit. Therefore, it seems interesting and important to determine the extent to which protein deposition is really preferential in growing animals supplied with only energy deficient rations (pure energy restriction). The aim of the research is to prove the hypothesis that animals that are subjected to strong, pure energy restriction when the nutrient supply is adequate also for gain, tend to their ability to deposit proteins so strongly that animals also use their own energy reserves (fat tissue) to achieve this goal. The effects of pure energy restriction on protein deposition, body composition and different muscle and fat tissues are studied. The influence of aspirin, which acts also as stimulator of lipolysis and thereby possibly improves the energy supply needed for protein deposition, and carnitin, which is involved in energy metabolism by stmulating mitohondrial fatty acids intake, is also of major interest. The hypothesis is studied in growing pigs and broilers.
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