Poultry feed metabolizable energy determination using total or partial excreta collection methods

The aim of this work was to compare the efficiency of total (TC) or partial (PC) collection excreta methods to determine metabolizable energy in poultry feeds. A number of 180 12- to 21-day-old broilers were distributed into two treatments of six replicates of 10 birds each. A reference-diet was for...

Full description

Saved in:

Bibliographic Details
Published in:	Revista brasileira de ciência avícola Vol. 12; no. 2; pp. 129 - 132
Main Authors:	Dourado, LRB(Universidade Federal do Piauí ,UNESP Faculdade de Ciências Agrárias e Veterinárias Departamento de Zootecnia), Siqueira, JC(UNESP Faculdade de Ciências Agrárias e Veterinárias Departamento de Zootecnia), Sakomura, NK(UNESP Faculdade de Ciências Agrárias e Veterinárias Departamento de Zootecnia), Pinheiro, SRF(UNESP Faculdade de Ciências Agrárias e Veterinárias Departamento de Zootecnia), Marcato, SM(Universidade Estadual de Maringá Departamento de Zootecnia), Fernandes, JBK(UNESP Centro de Aquicultura), Silva, JHV(Universidade Federal da Paraíba Convênio PROCAD UNESP)
Format:	Journal Article
Language:	English
Published:	Fundação APINCO de Ciência e Tecnologia Avícolas 01-06-2010
Subjects:	Acid insoluble ash AIA broiler digestibility marker partial collection method
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The aim of this work was to compare the efficiency of total (TC) or partial (PC) collection excreta methods to determine metabolizable energy in poultry feeds. A number of 180 12- to 21-day-old broilers were distributed into two treatments of six replicates of 10 birds each. A reference-diet was formulated to supply broiler requirements, and the test-diets consisted of 60% of reference diets and 40% of corn or soybean meal. Celite was added at 1% to the diets as a marker. Excreta and diet samples were analyzed for dry matter, energy, nitrogen, and acid-insoluble ash (AIA). AME of corn determined by partial collection (PC) was higher (3544 kcal/kg) as compared to total collection (TC) (3133 kcal/kg). However, no difference were observed for soybean meal (1797 vs. 1821 kcal/kg) between both methods. Marker recovery rates in the excreta were 101, 111, and 96% for the basal-diet, and the test-diets with corn or soybean meal, respectively. This result indicates the importance of marker recovery rate in the excreta to evaluate feed AME and digestibility.
Bibliography:	http://www.scielo.br/scielo.php?pid=S1516-635X2010000200010&script=sci_abstract&tlng=pt
ISSN:	1516-635X 1516-635X 1806-9061
DOI:	10.1590/S1516-635X2010000200010