Strategic management of pastures to control helminths and coccidia of calves in organic system

Authors

  • Jenevaldo Barbosa da Silva Universidade Estadual Paulista
  • João Paulo Guimarães Soares Empresa Brasileira de Pesquisa Agropecuária
  • Adivaldo Henrique da Fonseca Universidade Federal Rural do Rio de Janeiro

DOI:

https://doi.org/10.5433/1679-0359.2012v33n3p1103

Keywords:

Dairy cattle, Haemonchus, Rotational grazing.

Abstract

The objective of this study was to evaluate the influence of helminths eggs and protozoan oocysts elimination in calves’ feces kept in organic system production. The study was conducted from January 2008 to December 2009. Coproparasitological examinations were carried biweekly of 18 calves in pastures rotating system on Embrapa Agrobiology.The egg counting average data had been submitted to the Kruskal Willis test and the larvae counting percentile values to the qui-square test. The average counting of eggs per gram of faces (EGF) varied of 250 the 800, characterizing low and moderate infection. Animals with inferior age the six months had presented superior results of EGF (P <.05) to the ones of between six and twelve months age. The biggest degrees of infection had been observed in the late spring and summer. In the fecal examinations was identified the following helminths: Haemonchus (73%), Trichostrongylus (24%) and Oesophagostomum (3%). The practical handling adopted in organic system production had been capable to keep the animals in moderate levels of infection, being indicated that it had helmintoses control in rotating system of pastures.

Metrics

Metrics Loading ...

Author Biographies

Jenevaldo Barbosa da Silva, Universidade Estadual Paulista

Doutorando na Universidade Estadual Paulista, UNESP, Jaboticabal, SP.

João Paulo Guimarães Soares, Empresa Brasileira de Pesquisa Agropecuária

Pesquisador da Empresa Brasileira de Pesquisa Agropecuária, EMBRAPA, Brasília, DF.

Adivaldo Henrique da Fonseca, Universidade Federal Rural do Rio de Janeiro

Prof. da Universidade Federal Rural do Rio de Janeiro, UFRRJ, Seropédica, RJ.

Published

2012-06-28

How to Cite

Silva, J. B. da, Soares, J. P. G., & Fonseca, A. H. da. (2012). Strategic management of pastures to control helminths and coccidia of calves in organic system. Semina: Ciências Agrárias, 33(3), 1103–1112. https://doi.org/10.5433/1679-0359.2012v33n3p1103

Issue

Section

Articles

Most read articles by the same author(s)

1 2 > >>