Kinetic and in vitro ruminal fermentation characteristics of copra meal diets with different fat levels

  • Patricia Mendes Guimarães Beelen Universidade Federal de Alagoas
  • Talma Jordana Lima Universidade Federal de Alagoas
  • Talita Almeida de Paula Universidade Federal de Alagoas
  • Pablo de Souza Castagnino Universidade Estadual Paulista, Campus de Jaboticabal
  • Izabelle Auxiliadora Molina de Almeida Teixeira Universidade Estadual Paulista, Campus de Jaboticabal
  • Roger Nicolas Beelen Universidade Federal de Alagoas

Resumo

This study aimed at evaluating the chemical composition and in vitro ruminal characteristics of diets using copra meal with different fat contents. Three levels of copra meal inclusion (10, 20 and 30%) and two levels of fat (high-fat copra meal – HFCM and low-fat copra meal – LFCM) were used in replacement of soybean meal. The addition of copra meal increased EE and reduced CP and NFC of diets, especially when HFCM was included. Treatments with the inclusion of 30% copra meal had a higher colonization time (L), independently of fat content. The maximum gas production was reduced from 59.06 to 39.21 mL/g DM with the addition of HFCM, but was not affected when diets contained LFCM. Digestibility was also reduced with the addition of copra meal, the highest reduction being with the addition of 30% copra meal. Copra meal inclusion has reduced the ammonia concentration from 29.75 mg/100 mL (control diet) to 17.05 mg/100 mL (30% copra meal) but did not affect significantly methane production. Copra meal impacts the chemical composition and ruminal fermentation characteristics of diets, especially when containing high oil content.

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Biografia do Autor

Patricia Mendes Guimarães Beelen, Universidade Federal de Alagoas
Centro de Ciências Agrárias Programa de Pós-Graduação em Zootecnia
Talma Jordana Lima, Universidade Federal de Alagoas
Centro de Ciências Agrárias Programa de Pós-Graduação em Zootecnia
Talita Almeida de Paula, Universidade Federal de Alagoas
Centro de Ciências Agrárias Programa de Pós-Graduação em Zootecnia
Pablo de Souza Castagnino, Universidade Estadual Paulista, Campus de Jaboticabal
Departamento de Zootecnia
Izabelle Auxiliadora Molina de Almeida Teixeira, Universidade Estadual Paulista, Campus de Jaboticabal
Departamento de Zootecnia
Roger Nicolas Beelen, Universidade Federal de Alagoas
Centro de Ciências Agrárias Programa de Pós-Graduação em Zootecnia
Publicado
2017-04-18
Seção
Original Articles / Artigos de Pesquisa