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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Dietary addition of cellular metabolic intermediates and carcass fat deposition in broilers.

Ninety-six 1-day-old male broilers were fed a diet containing 0, 2, 4, 6, 8, or 10% of a 1:1 mixture of pyruvic acid (PY) and dihydroxyacetone (DH) for ad libitum consumption for 42 days. Feed intake, body weight gain, and feed efficiency decreased linearly (P < .001) with increasing levels of PY and DH. There were no significant differences among treatments for abdominal fat percentage. Carcass chemical analysis revealed small but significant (P < .05) differences among dietary treatments for protein and fat percentages. In a second experiment, 192 1-day-old male broilers were fed diets containing 5% of PY, lactic acid (LA), citric acid (CI), DH, or glycerol (GY) or mixtures (1:1) of DH or GY in combination with each organic acid. Bird performance was impaired (P < .05) by PY or CI but not by DH or GY. Lactic acid reduced (P < .05) feed intake by 9% without affecting weight gain. Lactic acid plus DH, CI plus DH, and CI plus GY mixtures decreased (P < .05) bird performance but other combinations had no effect. Pyruvic acid or CI decreased abdominal fat and carcass lipid percentages. Dihydroxyacetone increased (P < .05) carcass lipid percentage and GY increased (P < .05) abdominal fat percentage. Lactic acid plus DH increased (P < .05) carcass lipid percentage. Only PY and CI decreased carcass fat deposition, but they also impaired broiler performance.[1]

References

  1. Dietary addition of cellular metabolic intermediates and carcass fat deposition in broilers. Lessard, P., Lefrançois, M.R., Bernier, J.F. Poult. Sci. (1993) [Pubmed]
 
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