TORTA DE COCO EM DIETAS PARA OVINOS COM ALTO CONCENTRADO AFETA DIGESTIBILIDADE E CONSUMO

Autores

  • Paula Fabriny Maués da Silva Institute of Health and Animal Production, Universidade Federal Rural da Amazônia, Belém, PA https://orcid.org/0000-0003-0855-3163
  • Sarah Oliveira Sousa Pantoja Institute of Health and Animal Production, Universidade Federal Rural da Amazônia, Belém, PA https://orcid.org/0000-0002-3431-1769
  • Felipe Nogueira Domingues Institute of Health and Animal Production, Universidade Federal Rural da Amazônia, Belém, PA https://orcid.org/0000-0002-6809-5320
  • Aníbal Coutinho do Rêgo Institute of Health and Animal Production, Universidade Federal Rural da Amazônia, Belém, PA https://orcid.org/0000-0002-5452-0832
  • Cristian Faturi Institute of Health and Animal Production, Universidade Federal Rural da Amazônia, Belém, PA https://orcid.org/0000-0002-6676-1844

DOI:

https://doi.org/10.1590/1983-21252021v34n321rc

Palavras-chave:

Coproduto. Extrato Etéreo.Cordeiros. Ensaio metabólico.

Resumo

A torta de coco pode ser uma alternativa disponível e de baixo custo para substituir ingredientes nobres como o milho e o farelo de soja em dietas para ovinos. Objetivou-se com esse estudo, avaliar a inclusão de torta de coco em substituição ao milho e o farelo de soja em dietas para ovinos sobre o consumo, a digestibilidade aparente dos nutrientes e balanço de nitrogênio. Foram utilizados 24 cordeiros machos da raça Santa Inês, com peso corporal (PC) de 26,6 ± 3,2 kg, mantidos em gaiolas metabólicas, distribuídos em delineamento em blocos casualizados, com três tratamentos e oito repetições. Os animais receberam ração total com 30% de volumoso (capim elefante) e 70% de concentrado. Foram testadas uma dieta controle (sem torta) e outras duas, com 11 e 22% de inclusão da torta de coco. Os consumos de matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA) e carboidratos não fibrosos (CNF) em % do PC foram influenciados negativamente pela adição da torta de coco. O consumo de extrato etéreo (EE) aumentou, sem diferença entre dietas com 11 e 22%. A digestibilidade da MS, PB, EE e FDA não diferiram entre as dietas avaliadas. A inclusão da torta reduziu a digestibilidade da FDN e aumentou a dos CNF. O nível de inclusão da torta de coco na dieta deve estar relacionado ao teor de extrato etéreo da torta, mantendo o consumo de EE abaixo de 0,16% do peso corporal para não limitar a ingestão.

 

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Publicado

19-07-2021

Edição

Seção

Zootecnia