Fat sources omega-3 and omega-6 on voluntary feed intake of feedlot beef heifers

Authors

  • Mylene Müller Universidade Federal do Vale do São Francisco
  • Ivanor Nunes do Prado Universidade Estadual de Maringá
  • Willian Gonçalves do Nascimento Instituto Agronômico do Paraná
  • Vanderlei Xavier Scomparin Universidade Estadual de Maringá
  • Fábio Luiz Bim Cavalieri Centro Universitário de Maringá
  • Jair de Araújo Marques Instituto Agronômico do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2008v29n1p221

Keywords:

Intake, Linseed, Protected fat.

Abstract

The objective of this work was to evaluate the effect of different fat sources supplements on voluntary intake of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), hemicelluloses (HEM), and organic matter (OM). Twenty-four crossbreed heifers (½ Red Angus ½ Nelore) 20 months old and 351 kg of initial body weight were used during 56 days. The heifers were allotted in a completely randomized design for three different treatments: linseed supplement, omega-3 source (LIN); protected fat, omega-6 source (PFA), and no fat supplement (NOF). There was no difference (P < 0.05) on DM, CP, NDF, ADF, and OM voluntary intake, expressed in kg/day, % BW and g/ kg BW0,75 for fat sources. The values means of dry matter voluntary intake were 8.51 kg/day, 2.43% BW, and 105.12 g/kg BW0,75. Heifers on treatment LIN and PFA presented highest (P<0.05) EE intake, expressed in kg/day, %BW and g/kg BW0,75. The LIN treatment resulted in highest (P < 0.05) HEM intake in % BW and g/kg BW0,75.

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Author Biographies

Mylene Müller, Universidade Federal do Vale do São Francisco

Universidade Federal do Vale do São Francisco, UNIVASF, Petrolina, PE.

Ivanor Nunes do Prado, Universidade Estadual de Maringá

Departamento de Zootecnia, Universidade Estadual de Maringá, Maringá, PR.

Willian Gonçalves do Nascimento, Instituto Agronômico do Paraná

Instituto Agronômico do Paraná - IAPAR.

Vanderlei Xavier Scomparin, Universidade Estadual de Maringá

Departamento de Zootecnia, Universidade Estadual de Maringá, Maringá, PR.

Fábio Luiz Bim Cavalieri, Centro Universitário de Maringá

Centro de Ensino Superior, CESUMAR - Maringá.

Jair de Araújo Marques, Instituto Agronômico do Paraná

Instituto Agronômico do Paraná - IAPAR.

Published

2008-08-30

How to Cite

Müller, M., Prado, I. N. do, Nascimento, W. G. do, Scomparin, V. X., Cavalieri, F. L. B., & Marques, J. de A. (2008). Fat sources omega-3 and omega-6 on voluntary feed intake of feedlot beef heifers. Semina: Ciências Agrárias, 29(1), 221–228. https://doi.org/10.5433/1679-0359.2008v29n1p221

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