Биосинтез компонентов молока у коров и его зависимость от спектра метаболитов-предшественников

• Main Authors: РЕШЕТОВ В. Б., ДЕНЬКИН А. И., АГАФОНОВ В. И., СОРОКИН М. В., ЛЕМЕШЕВСКИЙ В. О.
• Format: Article
• Language: English
• Published: Moldova State Agrarian University 2014-12-01
• Series: Stiinta Agricola
• Subjects: cows; metabolite precursors; arteriovenous difference; milk biosynthesis; lactose; glycerin; milk fat
• Online Access: https://sa.uasm.md/index.php?journal=sa&page=article&op=view&path%5B%5D=146&path%5B%5D=151

Based on the stoichiometry and thermochemical characteristics of the biosynthesis description it was calculated the energy expenditure necessary for the final stages of biosynthesis of the major milk constituents (lactose, protein and fat). The theoretical analysis indicated that the energy expended for the biosynthesis of fatty acids of milk triglycerides depends on the used precursors’ spectrum. It was supposed that the similar mechanism explains the decrease of the energy efficiency in the milk components synthesis, while milk productivity increases. Another supposition was that simultaneously, there is an increase of the energy expenditure for the homeostatic maintenance.