Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Intestinal transit time, performance, carcass characteristics and body composition in broilers fed isoenergy diets formulated with different levels of soybean oil

Full text
Author(s):
Marcelo de Oliveira Andreotti [1] ; Otto Mack Junqueira [2] ; Maria José Baptista Barbosa [3] ; Luciana Cardoso Cancherini [4] ; Lúcio Francelino Araújo [5] ; Eliana Aparecida Rodrigues [6]
Total Authors: 6
Affiliation:
[1] Universidade Federal de Mato Grosso do Sul. Departamento de Produção Animal
[2] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
[3] Universidade Estadual de Maringá. Departamento de Zootecnia
[4] Universidade do Estado de São Paulo. Faculdade de Ciências Agrárias e Veterinárias
[5] Universidade do Estado de São Paulo. Faculdade de Ciências Agrárias e Veterinárias
[6] Universidade do Estado de São Paulo. Faculdade de Ciências Agrárias e Veterinárias
Total Affiliations: 6
Document type: Journal article
Source: REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE; v. 33, n. 4, p. 870-879, 2004-08-00.
Abstract

This study was conducted to evaluate the effect of 0.0, 3.3, 6.6, and 9.9% soybean oil inclusion in isoenergy diets on transit time (TT), performance, carcass characteristics and body composition of broilers from 21 to 56 days of age. The TT was determined at 22 and 42 days of age. Eight hundred and fourty broilers, with initial average weight of 870 g, allotted to a completely randomized design, with four treatments, six replications and 35 broilers per experimental unit, were used in the performance experiment. The TT was reduced linearly at 22 and 42 days of age. From 21 to 42 days, the levels of soybean oil showed a quadratic effect on weight gain, feed:gain ratio, energy:gain ratio and a linear effect on feed intake and energy intake. In the total period, it was observed a positive linear effect of soybean oil on weight gain, energy intake and feed intake and a quadratic effect on feed:gain and energy:gain. Abdominal fat was quadractly influenced at 42 and 56 days of age. However, carcass yield was quadractly influenced only at 56 days of age. Total body fat was positively influenced by age at 56 days and ash decreased at the same age. (AU)