title: [Effect of exogenous factors on metabolism of phosphorous compounds in the chicken tissues].
abstract: The activity of plant and microbic phytases depending on the medium pH was studied. The factors have been investigated as follows: decomposition efficiency of seed ingredients and the releasing of phytate phosphorus; the efficiency of the adsorption of phosphorus under the in situation of microbic phytase; the influence of microbic phytase feeding in the ratios with low content of accessible phosphorus for assimilation of phytate phosphorus and poultry production indices. It has been stated that the microbic phytase has a wider optimum of action depending on pH value. The microbic phytase positive action on the metabolism of phosphorus in the chicken organism has been determined through the experimental investigations.
authors.affiliation: Gzhytsky Lviv State Academy of Veterinary Medicine.
authors.forename: I Ie
authors.initials: IIe
authors.lastname: Kopko
authors.forename: Ia I
authors.initials: IaI
authors.lastname: Kyryliv
authors.forename: H M
authors.initials: HM
authors.lastname: Stoianovs'ka
mesh_terms: D010832:6-Phytase / Q000008:administration & dosage*; D000821:Animal Feed; D000818:Animals; D002645:Chickens / Q000097:blood / Q000378:metabolism*; D019587:Dietary Supplements; D006863:Hydrogen-Ion Concentration; D007413:Intestinal Mucosa / Q000378:metabolism; D007421:Intestine, Small / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008297:Male; D017553:Phosphorus Compounds / Q000097:blood / Q000378:metabolism*; D016226:Phosphorus, Dietary / Q000008:administration & dosage; D010833:Phytic Acid / Q000378:metabolism
chemical_list: D017553:Phosphorus Compounds; D016226:Phosphorus, Dietary; D010833:Phytic Acid; D010832:6-Phytase