Performance of broilers fed rations formulated by stochastic nonlinear programming or linear programming with a margin of safety

A feeding trial compared the production of broilers fed rations formulated by linear programming (LP), linear programming with a margin of safety (LPMS), and stochastic nonlinear programming (SP). The SP and LPMS programs met requirements at a specified confidence level (CL); however, SP rations wer...

Full description

Saved in:
Bibliographic Details
Published in:Poultry science 1993-04, Vol.72 (4), p.620-627
Main Authors: D'Alfonso, T.H. (Pennsylvania State University, University Park, PA), Roush, W.B, Cravener, T.L
Format: Article
Language:English
Subjects:
ALIMENTACION DE LOS ANIMALES
ALIMENTATION DES ANIMAUX
ANALISIS ESTADISTICO
ANALYSE STATISTIQUE
AVES DE CORRAL
COSTOS DE PRODUCCION
COUT DE PRODUCTION
DESEMPENO
FARINE D'OS
FARINE DE VIANDE
FORMULACIONES
FORMULATION
HARINA DE CARNE
HARINA DE HUESOS
LOGICIEL
MODELE MATHEMATIQUE
MODELOS MATEMATICOS
POLLO DE ENGORDE
POULET DE CHAIR
PROGRAMACION LINEAL
PROGRAMAS DE ORDENADOR
PROGRAMMATION LINEAIRE
VALEUR NUTRITIVE
VALOR NUTRITIVO
VOLAILLE
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A feeding trial compared the production of broilers fed rations formulated by linear programming (LP), linear programming with a margin of safety (LPMS), and stochastic nonlinear programming (SP). The SP and LPMS programs met requirements at a specified confidence level (CL); however, SP rations were lower in cost. Treatments included six rations (four replicates per ration with 15 birds per replicate). Variances of methionine, lysine, calcium, and phosphorus were considered. Treatments were: 1) LP; 2) SP and 3) LPMS, both with 0.69 CL on meeting requirements (NRC, 1984) for the specified nutrients; 4) SP and 5) LPMS, with amino acid CL increased to 0.90; and 6) SP identical to Treatment 4, but with meat and bone meal restrictions relaxed from 5 to 10%. The SP rations utilized both nutritionally variable ingredients (e.g., rendered by-products) and nutritionally consistent ingredients (e.g., amino acid supplements) while costing less than the equivalent LPMS rations. Birds performed the same between equivalent SP and LPMS treatments (P 0.05) on the basis of body weight and feed conversion. The SP rations were more profitable than the LPMS counterparts
ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0720620