Mathematical modeling of productive performance and intake of enzymes according to the NSP content of compound feed based on triticale

摘要

The aim of this work was to establish mathematical models of prediction of the main bioproductive indices and of the necessary enzymes in broilers depending on the content of compound feed in NSPs predominating in triticale in amount of 600 g to I kg mixed fodder. In this respect, an experiment has been done on broilers in order to establish experimental values of bioproductive indices and the content of compound feed in NSPs. This experiment lasted for a period of six weeks and was carried out on a group of 180 chickens distributed in three experimental variants as follows: the experimental group EG), fed forage with triticale in quantity of 600g/kg in its structure, EG fed forage with triticale in quantity of 600g/kg in its structure and xylanase in quantity of 100 ppm , the experimental group EG3 fed combined forage with incorporation of triticale in quantity of 600 g/kg and polyenzymatic complex (Endo-1,4-beta-glucanaza (complex cellulose), alpha-amylase (alpha-amylase) Bacillolysin (protease) and Endo-1,4-beta-xylanaza (xylanase), in quantity of 250 ppm. Based on experimental data obtained after administration of triticale based combined feed in quantity of 60% + additional enzymes to obtain a mathematical model of the form y=x/(ax+b) that can predict the intake of enzyme necessary for the chicks. Using a statistical software Data Fit 9, based on data obtained from an experiment on broilers fed a triticale-based CN (leading to increased NSP content) with additional enzymes to obtained a mathematical model of the form y=a/(1+bx) of predicting the body weight. Using a statistical software Data Fit 9 achieved a mathematical model of the form y=a+bx’ of predicting the index of food conversion in broilers fed a triticale-based NC with additional enzymes.