Dependence of the buffer capacity on the chemical composition of dry matter of alfalfa

Abstract

Annotation It is shown that the buffer capacity of dry matter of alfalfa of the first cut in the flowering phase is 5.66-5.94 mol / liter. With an increase in the content of crude protein and crude ash by 1%, it increases by 0.14-0.40 and 0.49-0.86 mol / liter, respectively, with an increase in the content of soluble carbohydrates by 1%, it decreases by 1.44 mol / liter … The dry matter of the second cut alfalfa has a high forage quality. The content of crude protein from the stemming-beginning of budding phase to the flowering phase is in the range of 23.44-20.20%, crude ash 9.24-8.10%, while the content of crude fiber is reduced to 22.92-29.01%, dry matter - up to 20.84-26.00%. The buffer capacity of dry matter reaches 9.69-7.23 mol / liter. The main influence on the buffer capacity is exerted by the mineral composition of the dry matter. An increase in the content of crude ash by 1% increases the buffer capacity of dry matter by 0.55 ± 0.16 - 1.36 ± 0.14 mol / l, an increase in the content of crude protein by 1% increases the buffer capacity by 0.15 ± 0.06 - 0.39 ± 0.14 mol / liter.