PROCESS FOR MANUFACTURING AN ALKALI GRANULATED ADDITIVE FOR ANIMAL FEED AND ALKALI GRANULATED ADDITIVE FOR ANIMAL FEED

摘要

The invention refers to an alkali granulated additive for animal feed with high concentration of lysine, but especially low ammonium content. More particularly, said alkali granulated additive has pH within the range between 8 and 10, including a lysine concentration between 70% and 85% by weight and having a nearly negligible content of ammonium ions which the molar relation follows the condition below - Formula (I) - being obtained by a process wherein, during the fermentation step inside fermentation tanks, concentration levels of ammonium ions in the solution are controlled by monitoring the rate of ammoniacal nitrogen (AN) throughout processing and fermenting culture medium, so to keep said content of ammoniacal nitrogen (AN) around 100mg/l until the end of carbon in the culture medium is detected and the content of ammoniacal nitrogen (AN) subsequently reaches amounts between 50mg/l and 10 mg/l.