Rumen ciliate protozoa of Nelore steers grazing Brachiaria brizantha with proteic suplement or free access to a protein bank of Leucaena leucocephala in differents seadon of the year

Authors

  • Marcelo de Queiroz Manella Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro Avançado de Pesquisa Tecnológica do Agronegócio de Bovinos de Corte, Nova Odessa, SP
  • Antônio João Lourenço Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagem, Nova Odessa, SP

Keywords:

proteic supplements, beef cattle, grazing, protein bank, rumen ciliate protozoa

Abstract

The rumen ciliate protozoa population was evaluated on nelore steers grazing Brachiaria brizantha pastures (Teste), or supplemented during the dry season (Seca), dry and wet seasons (Ano) or with free access to a leucaena bank (Banco), was evaluated in a randomized block design with four replications. The rumen liquor was collected on August, November, February and May. The total counting of rumen ciliate protozoa showed a period effect, were May had highest concentrations and February lowest (P<0.05). The genus Entodinium counts were higher in May than February (P<0.05), and it were the predominant genus (74.8%). Diplodinium showed lower concentrations on Ano (P<0.05), February and May were higher than November (P<0.05). In February the population of the genus Epidinium were larger (P<0.05) than the other periods. The Isotricha had higher concentrations on Banco (P<0.05), and May (P<0.05). The Dasytricha had the lowest concentration on August (P<0.05).

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Published

2013-11-28

Issue

Section

ANIMAL NUTRITION

How to Cite

Rumen ciliate protozoa of Nelore steers grazing Brachiaria brizantha with proteic suplement or free access to a protein bank of Leucaena leucocephala in differents seadon of the year. (2013). Bulletin of Animal Husbandry, 61(1), 1-11. http://bia.iz.sp.gov.br/index.php/bia/article/view/1338

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