title: Biological efficacy of L-lysine preparations containing biomass compared to L-lysine-HCl.
abstract: In two growth experiments on broilers of 6 to 27 days of age, the biological efficacy of three L-lysine preparations containing biomass was evaluated in comparison to L-lysine.HCl. L-lysine from the different sources was added in graded levels to a basal diet deficient in lysine, but adequate in all other nutrients. From multi-exponential regression analysis of weight gain and feed conversion responses, biological efficacy of the three L-lysine preparations containing biomass was estimated to be 97%, 103%, and 113%, respectively. None of these estimates was significantly different from 100%. Thus, it is concluded that the efficacy of the L-lysine preparations to deliver lysine is equivalent to L-lysine.HCl.
authors.affiliation: TNO Nutrition and Food Research (ILOB), Wageningen, The Netherlands.
authors.forename: J B
authors.initials: JB
authors.lastname: Schutte
authors.forename: M
authors.initials: M
authors.lastname: Pack
mesh_terms: D000821:Animal Feed / Q000032:analysis / Q000382:microbiology / Q000592:standards*; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D018533:Biomass; D002645:Chickens / Q000254:growth & development*; D004435:Eating; D005260:Female; D005285:Fermentation; D005527:Food, Fortified; D008239:Lysine / Q000008:administration & dosage* / Q000032:analysis; D012044:Regression Analysis; D015430:Weight Gain
chemical_list: D008239:Lysine