Crop residues activity against the free-living stages of small ruminant nematodes

• Autor(a) principal: Salles,Hévila Oliveira
• Data de Publicação: 2019
• Outros Autores: Braga,Ana Carolina Linhares, Nascimento,Danisvânia Ripardo, Prado,Mayara Stephanny Melo, Souza,Henrique Antunes de, Oliveira,Eduardo Luiz de, Vieira,Luiz da Silva, Cavalcante,Antônio Cézar Rocha, Lima,Adriano Rodrigues, Teles Neto,Cláudio Santos, Sousa,Ana Márjory Paiva, Ribeiro,Regislane Pinto, Pompeu,Roberto Cláudio Fernandes Franco
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Parasitologia Veterinária (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000300528
• topic: Gastrointestinal nematodes; Haemonchus contortus; organic residues; environmental control

Abstract The nematicidal effect of different organic materials was evaluated in order to develop a non-chemical alternative soil treatment for control of the free-living stages of small ruminant gastrointestinal nematodes. The selected organic materials were residues from the juice industry of acerola, cashew, grape, guava, papaya and pineapple, as well as castor residue from the biodiesel industry. LC90 results showed that pineapple residue was the most efficient inhibitor of larval development, followed by castor, grape, cashew, acerola, guava and papaya. Castor residue was also a good source of nitrogen and was used in a greenhouse experiment to prevent larval development in contaminated goat faeces that was deposited in pots containing the grasses Brachiaria brizantha (var. Paiaguás) or Megathyrsus maximus x M. infestum (var. Massai). Castor residue caused a significant (P < 0.05) reduction (85.04%) in Paiaguás grass contamination (L3.dry mass-1) and a reduction of 17.35% in Massai grass contamination (P > 0.05), with an increase in the biomass production of Massai (251.43%, P < 0.05) and Paiaguás (109.19%, P > 0.05) grasses. This strategy, called Econemat®, with good results in vitro shows to be promising on pasture increasing phytomass production.