Apparent digestibilily of raw soybean grains, toasted soybean grains and soybean oil meal fed to ruminant

Authors

  • Edison Valvasori Instituto de Zootecnia, Divisão de Zootecnia de Bovinos Leiteiros, Seção de Criação e Manejo do Gado Leiteiro, Nova Odessa, SP
  • Carlos de Sousa Lucci Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SP
  • Fernando Lima Pires Instituto de Zootecnia, Divisão de Zootecnia de Bovinos Leiteiros, Seção de Criação e Manejo do Gado Leiteiro, Nova Odessa, SP
  • Laércio Melotti Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SP

Keywords:

feed, digestibility, nitrogen balance, soybean, steers

Abstract

Eighteen crossbred (5/8 european x 3/8 zebu) castrated male steers were used in a completely randomized block design to evaluate digestibility and nitrogen balance. After 21 days of an adaptation period, it was followed 7 days of total collection of faeces and urine, in which the feed intake was restricted to 80% of the intake in the adaptation period. The diets, had 13% of crude protein, with ear corn, ground hay, minerals and soybean, according to treatments: A) soybean oil meal; B) toasted soybean; C) raw soybean. Dry matter intake were similar (P > 0.05) between treatments. The diet with toasted soybeans (B) had lower ureatic activity but greater apparent digestibility of the organic matter, nitrogen-free extract and energy than the raw soybean diet. Soybean oil meal diet (A) had greater apparent digestibility of dry matter, protein and nitrogen-free extract than raw soybean; but fat digestibility was the lowest with soybean oil meal. Toasted soybean had the highest energy digestibility and soybean meal had the highest nitrogen balance.

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Published

2014-01-14

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Apparent digestibilily of raw soybean grains, toasted soybean grains and soybean oil meal fed to ruminant. (2014). Bulletin of Animal Husbandry, 49(2), 125-130. http://35.198.24.243/index.php/bia/article/view/857

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