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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Performance, carcass traits, and body composition of broilers fed different linseed oil levels between 21 and 56 days of age

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Author(s):
KF Duarte [1] ; OM Junqueira [2] ; LL Borges [3] ; E Rodrigues [4] ; R da S Filardi [5] ; MFFM Praes [6] ; AC de Laurentiz [7] ; CH de F Domingues [8]
Total Authors: 8
Affiliation:
[1] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
[2] UFG. Universidade Federal de Goiás. Departamento de Zootecnia
[3] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
[4] Instituto Federal de Educação, Ciência e Tecnologia do Triangulo Mineiro. Universidade Federal de Goiás. Departamento de Zootecnia
[5] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Engenharia de Ilha Solteira. Departamento de Biologia e Zootecnia
[6] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
[7] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Engenharia de Ilha Solteira. Departamento de Biologia e Zootecnia
[8] Universidade Estadual Paulista Júlio de Mesquita Filho. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
Total Affiliations: 8
Document type: Journal article
Source: Brazilian Journal of Poultry Science; v. 16, n. 1, p. 55-60, 2014-03-00.
Abstract

This study was carried out to evaluate the effect of the inclusion of different linseed oil levels (0.0, 3.3, 6.6, or 9.9%) in iso-energy diets fed during the period of 21 to 56 days of age on the performance, carcass traits, and body composition of broilers. A total of 1,600 broilers were distributed according to a completely randomized experimental design consisting of four treatments with eight replicates of 40 birds per experimental unit. In the period of 21-42 days of age, weight gain increased, feed and calorie conversion ratios quadratically improved, and feed and metabolizable energy intakes linearly increased as dietary linseed oil level increased. Considering the entire experimental period, dietary linseed oil linearly increased weight gain and feed and energy intakes, and feed and calorie conversion ratios in a quadratic manner. On days 42 and 56, abdominal fat percentage and carcass yield were quadratically influenced by dietary linseed oil. Total body fat content at 56 days of age was quadratically influenced by dietary linseed levels. (AU)