Sunflower Meal and Enzyme Supplementation in Diets of Broilers from 21 to 42 Days of Age

Document Type: Research Article

Authors

1 Coopearativa Agropecuaria Centro Serrana-ES, Brazil

2 Department of Animal Science, Universidade Federal de Viçosa, Viçosa-MG, Brazil

3 Doctorate Program, Department of Animal Science, DZO / UFV, Brazil

Abstract

The objective of this study was to evaluate the performance of male broiler chickens in the period from 21 to 42 days of age fed diets with increasing levels of sunflower meal (SM) supplemented with an enzyme complex (EC). A total of 1920 animals of the Cobb strain were distributed in a randomized block design in a 4 × 3 factorial arrangement (four SM levels and three enzymes utilization types), with eight replicates, each containing 20 birds. The sunflower meal inclusion levels were 0, 8, 16 and 24%, utilized in three different diets. The first one was calculated so as to meet all the nutritional requirements of birds, except for the nutrients which would be provided by the nutritional matrix of the EC, considered as the negative control (NC). The second diet was calculated in the same way as the first one but was supplemented with 0.5% of EC (NC+EC). The last diet was calculated so as to meet all the nutritional requirements of animals, called as positive control (PC). The parameters assessed were feed intake, weight gain, feed conversion, carcass parameters and productive (PEI) and economic (EEI) efficiency indices. The addition of EC in the diets for broiler chickens did not improve the parameters of feed intake, weight gain, feed conversion or carcass parameters. The increase in the SM levels in the diet worsened the parameters of weight gain and feed conversion. The best EEI was for the animals fed the diet NC + EC, with inclusion of 8.0% SM.

Keywords


Abdelrahman M.M. and Saleh F.H. (2007). Performance of broiler chickens fed on corn sunflower meal diets with ß-glucanase enzyme. Jordan J. Agric. Sci. 3, 272-280.
Bellaver C., Fialho E.T. and Protas J.F.S. (1985). Radícula de malte na alimentação de suínos em crescimento e terminação. Rev. Bras. Zoot. 20, 969-974.
Furlan A.C., Mantovani C. and Murakami A.E. (2001). Utilização do farelo de girassol na alimentação de frangos de corte. Rev. Bras. Zoot. 30, 158-164.
Kocher A., Choct M. and Porter M.D. (2000). The effects of enzyme addition to broiler diets containing high concentrations of canola or sunflower meal. Poult. Sci. 79, 1767-1774.
Macari M., Furlan R.L. and Gonzales E. (2008). Fisiologia Aviária Aplicada a Frangos de Corte Jaboticabal, Brazil: FUNEP / UNESP.
Mattos L.L. and Martins I.S. (2000). Consumo de fibras alimentares em população adulta. Rev. Saude. Public. 34, 50-55.
Nascimento A.H., Gomes P.C. and Rostagno H.S. (2005). Valores de energia metabolizável de farinhas de penas e de vísceras determinados com diferentes níveis de inclusão e duas idades das aves. Rev. Bras. Zoot. 34, 877-881.
NRC. (1994). Nutrient Requirements of Poultry, 9th Rev. Ed. National Academy Press, Washington, DC.
Oliveira M.C., Martins F.F. and Almeida C.V. (2003). Efeito da inclusão de bagaço de girassol na ração sobre o desempenho e rendimento de carcaça de frangos de corte. Rev. Bras. Zoot. 10, 107-116.
Pinheiro J.W., Fonseca N.A.N. and Silva C.A. (2002). Farelo de girassol na alimentação de frangos de corte em diferentes fases de desenvolvimento. Rev. Bras. Zoot. 31, 1418-1425.
Porto W.S., Carvalho C.G.P. and Pinto R.J.B. (2008). Evaluation of sunflowers cultivars for central Brazil. Sci. Agric. 65, 139-144.
Raza S., Ashraf M. and Pasha T.N. (2009). Effect of enzyme supplementation of broiler diets containing varying level of sunflower meal and crude fiber. Pakistan J. Bot. 41, 2543-2550.
Rosa P.M., Antoniassi R. and Freitas S.C. (2009). Chemical composition of Brazilian sunflower varieties. Helia. 32, 145-155.
Rostagno H.S., Albino L.F.T. and Donzele J.L. (2005). Tabelas brasileiras para aves e suínos: composição de alimentos exigências nutricionais. Viçosa MG: universidade federal de viçosa. Pp. 168.
SAS Institute. (1996). SAS®/STAT Software, Release 6.11. SAS Institute, Inc., Cary, NC.
Tavernari F.C., Albino L.F.T. and Morata R.L. (2008).Inclusion of sunflower meal with or without enzyme supplementation in broiler diets. Brazilian J. Poult. Sci. 10, 233-238.
Tavernari F.C., Dutra Junior W.M. and Albino L.F.T. (2009). Efeito da utilização de farelo de girassol na ração sobre o desempenho de frangos de corte. Rev. Bras. Zoot. 38,1745-1750.
Tavernari F.C., Morata R.L. and Ribeiro J.V. (2010).Avaliação nutricional e energética do farelo de girassol para aves. Arq. Bras. Med. Vet. Zootec. 62,172-177.