Effect of the integrated livestock–forest system on recovery of trichostrongylid nematode infective larvae from sheep

Abstract

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Infection with gastrointestinal nematodes in lambs in different integrated crop-livestock systems (ICL)

“…At Rio Grande do Sul, Echevarria et al (1993) reported a similar efficiency of the ICL system in the decontamination of pastures by GIN larvae. The same was not observed by other researchers that evaluated the integrated livestock-forest systems (ILF) (Faria et al, 2016;Oliveira et al, 2017a). Faria et al (2016), when evaluating the pasture contamination in the ILF system, found a higher number of GIN infective larvae of sheep in the ILF system compared to the conventional system.…”

“…The same was not observed by other researchers that evaluated the integrated livestock-forest systems (ILF) (Faria et al, 2016;Oliveira et al, 2017a). Faria et al (2016), when evaluating the pasture contamination in the ILF system, found a higher number of GIN infective larvae of sheep in the ILF system compared to the conventional system. Certainly, there are differences between the ICL and ILF regarding the contamination of pastures by GIN L3.…”

“…In most areas of Brazil, such as São Paulo state, no detailed research has been conduct to verify whether the ICL system favours preventing GIN infections in grazing lambs. There are only some studies evaluating bovine infection and pasture contamination by GIN in the silvopasture system that combines forestry and livestock production (Faria et al, 2016;Mendonça et al, 2014;Oliveira et al, 2017a).…”

Estudo Da Consorciação De Práticas Agropecuárias Para O Desenvolvimento De Sistemas Sustentáveis E Eficientes Na Produção De Ovinos De Corte / Consortium Study of Agricultural Practices for the Development of Sustainable and Efficient Systems in the Production of Beef Sheep

“…Almeida et al (2018) avaliaram quatro tipos de integração lavoura pecuária quanto ao nível de contaminação da pastagem por larvas infectantes (L3), e verificaram que o período de 300 dias sem a presença de animais em área de pastejo demonstrou ser eficiente para a descontaminação por larvas infectantes de nematódeos gastrintestinais de ovinos. Contudo, Faria et al (2016) reforçam que a estratégia de aplicação dos sistemas com IPF, por exemplo, pode ser aplicado de diferentes maneiras, o que está associado às condições climáticas de cada região, a qual pode mudar significativamente e no nível de infestação da pastagem. Dessa forma, de acordo com esses autores, faz-se necessário avaliar as estratégias de manejo de controle de nematoides para se ter uma melhor eficiência.…”

“…Em um trabalho realizado por Faria et al (2016) Diante desses achados, mais estudos precisam ser conduzidos para encontrar a melhor combinação de manejo dentro do sistema para controle de verminose dos ovinos, principalmente na fase de terminação de cordeiro, principal produto da ovinocultura de corte.…”