Apparent total tract and ileal amino acids digestibility values of vegetal protein meals with dietary protease to broiler diet.

Autor:	Bertechini AG; Animal Science Department, Federal University of Lavras, Minas Gerais, Brazil., Dalolio FS; Animal Science Department, Federal University of Lavras, Minas Gerais, Brazil., Carvalho JCC; Animal Science Department, Federal University of Lavras, Minas Gerais, Brazil., Carvalho AC; Animal Science Department, Federal University of Lavras, Minas Gerais, Brazil., Sorbara JOB; DSM Nutritional Products, São Paulo, Brazil.
Jazyk:	angličtina
Zdroj:	Translational animal science [Transl Anim Sci] 2020 Nov 27; Vol. 4 (4), pp. txaa219. Date of Electronic Publication: 2020 Nov 27 (Print Publication: 2020).
DOI:	10.1093/tas/txaa219
Abstrakt:	This experiment was carried out to study the effect of dietary exogenous monocomponent protease on the coefficient apparent total tract (ATTD) and apparent ileal (AID) digestibility of amino acids of corn, soybean meal (SBM), and full fat soybean meal (FFSM) in broilers. A total of 400 males Cobb-500 (14 d of age) were equally allocated in 80 metabolic cages (50 cm × 50 cm × 45 cm) in a completely randomized design and a semi-controlled environment. Eight treatments (basal diet with or without a protease and three ingredients replacing the basal diets in 40% to corn and 30% to SBM and FFSM, with and without protease), with 10 replicates each were evaluated. The protease was added at 200 mg/kg resulting in 15,000 unit of PROT/kg. The total collection of excreta was held during 3 d, after 5 d for adaptation of broilers at the diets. The ileal content was collected on d 21, after slaughter of birds. The enzyme increased ( P < 0.05) the ATTD and AID of most amino acids contained in SBM and FFSM. The digestibility of cysteine, glycine, proline, and threonine had higher ( P < 0.05) ATTD and AID in all tested ingredients with the use of protease. On average, the dietary protease increased in 5.19% and 3.86% the total and ileal digestibility of amino acids, respectively. It was concluded that the dietary protease exerts major effects on toasted full-fat soybean, followed by soybean meal and corn to broilers. (© The Author(s) 2020. Published by Oxford University Press on behalf of the American Society of Animal Science.)
Databáze:	MEDLINE
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