<b>Physical-chemical composition and fatty acids profile in Longissimus muscle of young bulls from different genetic groups finished in feedlot</b> - DOI: 10.4025/actascianimsci.v30i4.465

  • José Jorge dos Santos Abrahão Instituto Agronômico do Paraná, Rua Paulo Antônio da Costa, Jd. Ipê, s/n. Paranavaí, Paraná, CEP: 87701-970
  • Jair Araújo Marques EMATER
  • Lívia Maria Macedo Departamento de Zootecnia, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, CEP: 87020-900.
  • Juliana Martin Prado Departamento de Zootecnia, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, CEP: 87020-900.
  • Jesuí Virgílio Visantainer Departamento de Química, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, CEP: 87020-900.
  • Ivanor Nunes do Prado UEM
DOI: https://doi.org/10.4025/actascianimsci.v30i4.465

Abstract

This work was undertaken to study physical-chemical composition and fatty acids profile in Longissimus muscle of young bulls from different genetic groups finished in feedlot. Fourty animals were used, with average age of 22 months, from four genetic groups: NGR (¼ Nelore vs. ¼ Guzerá vs. ½ Red Angus); NSM (¼ Nelore vs. ¼ Simental vs. ½ Marchigiana); NRL (¼ Nelore vs. ¼ Red Angus vs. ½ Limousin) and NMM (¼ Nelore vs. ¾ Marchigiana). After slaughter and chilled of carcass, Longissimus muscle samples between 12th and 13th rib were collected. The fatty acid composition was evaluated using the gas chromatograph. There was no genetic group effect (P>0.05) on muscle moisture (74.0%), ash (1.0%), crude protein (19.0%) and total lipids (2.0%). The group NMM presented the lowest (P<0.05) proportion of C14:0, C14:1, C16:0 and the highest proportion of C18:0 and C22:1. The saturated fatty acid proportion (46.0%), monounsaturated fatty acid proportion (45.0%) and polyunsaturated fatty acid proportion (8%) were similar (P>0.05) between the genetic groups. The AGS/AGI reason (0.2) was similar. The NMM and NGR groups presented, respectively, the highest (8.5%) and the lowest (5.6%) proportion of n-6 fatty acids and the highest (5.5) and the lowest (4.0) n-6/n-3 ratio.

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Author Biography

Jair Araújo Marques, EMATER
possui graduação em Medicina Veterinária pela Universidade Federal de Santa Maria (1985), mestrado em Zootecnia pela Universidade Estadual de Maringá (1999) e doutorado em Zootecnia pela Universidade Estadual de Maringá (2004). Atualmente é assistência técnica - Fazenda Marques, professor da Faculdade Intermunicipal do Noroeste do Paraná - FACINOR e pesquisador do Instituto Agronômico do Paraná - IAPAR. Tem experiência na área de Zootecnia, com ênfase em Criação de Animais, atuando principalmente nos seguintes temas: manejo, alimentação animal, comportamento e bem estar animal. http://lattes.cnpq.br/9627911784784144
Published
2009-03-05
How to Cite
Abrahão, J. J. dos S., Marques, J. A., Macedo, L. M., Prado, J. M., Visantainer, J. V., & Prado, I. N. do. (2009). <b>Physical-chemical composition and fatty acids profile in Longissimus muscle of young bulls from different genetic groups finished in feedlot</b&gt; - DOI: 10.4025/actascianimsci.v30i4.465. Acta Scientiarum. Animal Sciences, 30(4), 443-449. https://doi.org/10.4025/actascianimsci.v30i4.465
Issue
Vol 30 No 4 (2008)
Section
Ruminant Nutrition

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