Integrated and biological control of parasites in organic and conventional production systems

Thamsborg, Stig Milan; Roepstorff, Allan; Larsen, Mona

doi:10.1016/s0304-4017(99)00035-7

Cited by 144 publications

(97 citation statements)

References 46 publications

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“…In Nordic countries, dairy cattle, preventive (change of pastures between seasons) and diluting strategies (mixed or alternate grazing with other species) are the selected means for control [57,58]. Mixed or alternative grazing of sheep and cattle has been studied on several occasions and reduced infection of sheep [53] was observed.…”

Section: Discussionmentioning

confidence: 99%

“…Mixed or alternative grazing of sheep and cattle has been studied on several occasions and reduced infection of sheep [53] was observed. The study of mixed or alternate grazing with sows and heifers resulted in a reduction of Ostertagia burden in heifers [58]. Such good results are not always obtained: it has been reported that mixed /alternate grazing may in some conditions favour sheep infection with Nematodirus battus in the field [15] or induce incidents of severe diarrhoea in calves [3].…”

Section: Discussionmentioning

confidence: 99%

“…This was due either to the fact that the demonstration of sustainable field efficacy has not yet been fully demonstrated or to an uncertain feasibility. They should probably be considered in the future as useful tools in integrated/biological control of parasites [58] in a post-anthelmintic era.…”

Section: Discussionmentioning

confidence: 99%

“…Dairy production is the least affected by conversion and consequently little to no change is expected in the intensity and spectrum of internal parasites [58] since grazing (source of helminths) in dairy cows is limited. The increased use of the deep litter barn system has resulted in cocciodiosis but has not modified helminth infection.…”

Section: Helminths: Should We Be Afraid and Of What?mentioning

confidence: 99%

“…They also rely on (1) preventive grazing management such as delayed turn-out, change of pastures between seasons, and the use of more aftermath, (2) diluting grazing management: mixed or alternate grazing with other host species, (3) evasive grazing management like changing the pasture within the season, (4) supplementary feeding in the spring. In Denmark [58], cattle are moved to new pastures several times during the season and feed supplementation is given. Parasite control is obviously based on grazing management in these dairy cattle-farms.…”

Section: Grazing Management and The Control Of Gastro-intestinal Helmmentioning

confidence: 99%

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Managing helminths of ruminants in organic farming

Cabaret¹,

Bouilhol

Mage

2002

Vet. Res.

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-The use of anthelmintics is strongly limited in organic farming. This may induce a change in the intensity (no of worms) and diversity (proportions of species) of helminth infection. Helminths remain a major preoccupation in organic sheep farming: high levels of infection have been recorded on several farms and helminth diversity is always higher. The helminth infection in milk cattle of northern Europe is controlled and diversity is higher in organic farms, as recorded in sheep. The role of helminth diversity on intensity is still unclear. Grazing management is one of the means to controlling helminths. The use of safe pastures for calves and sheep after weaning is one of the major components of control. The use of alternate or mixed grazing is common for cattle in northern countries but is uncommon for sheep in France. Grazing management is not sufficient to controlling infection in sheep and conventional anthelmintic treatments are performed. Additionally, alternative treatments are used. The alternative therapies based on phytotherapy or homeopathy are largely recommended in organic farming but do not have any demonstrated efficacy. More research is needed to evaluate such therapies. ruminant organic farm / helminth / grazing management / anthelmintic / phytotherapyRésumé -Gestion des helminthes de ruminants en agriculture biologique. L'emploi des anthelminthiques est fortement limité en élevage biologique. Cette diminution de leur utilisation peut conduire à des changements en ce qui concerne l'intensité (nombre de vers) et la diversité (proportion des espèces) des parasites. Les helminthes sont une préoccupation majeure en élevage biologique ovin : les infestations sont très fortes dans certaines fermes et la diversité est plus élevée que dans les élevages conventionnels. L'infestation des bovins laitiers par les helminthes dans les pays du nord de l'Europe est assez bien contrôlée et la diversité est plus forte également en élevage biologique. Le rôle de la diversité sur l'intensité n'est pas encore clair. La gestion des pâturages est l'un des moyens de contrôler l'infestation. L'utilisation de pâtures saines pour les veaux ou les agneaux après le sevrage est l'une des composantes essentielles de la gestion des parasites. L'utilisation de pâturage alterné ou mixte avec des espèces différentes est commun dans les régions nordiques pour les bovins mais n'est 625

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Section: Discussionmentioning

confidence: 99%