A survey of dairy cattle worm control practices in Southeast Brazil

Charles, Terezinha Padilha; Furlong, John

doi:10.1016/0304-4017(96)00949-1

Cited by 13 publications

(5 citation statements)

References 8 publications

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“…Similar results have been reported elsewhere including Kenya (Kinoti et al , 1994; Maingi et al , 1997) and Brazil (Charles & Furlong, 1996). Modern anthelmintic treatments used by the respondents interviewed herein depended on the availability of money or drugs and not the epidemiology of parasites.…”

Section: Discussionsupporting

confidence: 91%

Contrasting views of animal healthcare providers on worm control practices for sheep and goats in an arid environment

et al. 2012

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A questionnaire survey was conducted to determine the worm control practices and anthelmintic usage of 150 key respondents involved in sheep and goat production in the arid Thal area of Pakistan. The information was collected by visiting farms, and interviewing the key respondents which included veterinary officers (n = 15), veterinary assistants (n = 51), traditional practitioners (n = 24), and small and large scale sheep/goat farm herders and owners (n = 60). Among all interviewed animal healthcare providers, the veterinary officers had the highest level of awareness of parasitic infection and advocated the use of modern available anthelmintics according to the predefined schedule. The farmers on the other hand, had the lowest level of knowledge about parasitic infections. They used modern anthelmintics at low frequencies (every six months) following an unusual practice of diluting the medicine. Veterinary assistants had a medium level of awareness about the parasitic infections using anthelmintic treatments when they deemed necessary rather than following a predefined treatment schedule. Traditional practitioners were also aware of parasitic infections and used traditional anthelmintics or a combination of the traditional and modern anthelmintics. The animal health providers had a different awareness and knowledge of parasitic infections which resulted in contrasting proposals for its control. The farmers used worm control measures in accordance with their own views and those of animal healthcare advisors, combining modern and traditional treatments. This study provides the first insight into the differing views of those animal healthcare providers who form the basis for effective parasitic control within the sheep and goat industry of an arid region.

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Section: Discussionsupporting

confidence: 91%

Contrasting views of animal healthcare providers on worm control practices for sheep and goats in an arid environment

et al. 2012

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“…In Brazil, benzimidazole and macrocyclic lactone anthelmintics are the principal forms of control used against gastrointestinal nematode parasites of ruminants (BOWMAN, 2010;CHARLES;FURLONG, 1996). However, the public health significance of anthelmintic drug residues in products of animal origin, the presence of these drugs in animal feces, their negative influence on biodiversity and agricultural ecosystem sustainability (due to the heavy reliance on systematic and sometimes abusive therapeutic use) and reports of helminth strains tolerant or resistant to different anthelmintic groups have triggered investigation into alternative methods for the sustainable control of gastrointestinal nematodes of ruminants (CAI et al, 2016;GRONVOLD et al, 1996;SUAREZ, 2002).…”

mentioning

confidence: 99%

In vitro nematophagous activity of predatory fungi on infective larvae of Strongyloides papillosus

Campos

Valadão

Carvalho

et al. 2017

AVB

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An in vitro experiment was carried out to assess the effect of fungal isolates of the genus Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus on infective Strongyloides papillosus larvae. A suspension of 1,000 infective S. papillosus larvae was dripped on to Petri dishes containing fungi grown in agar-water. There was a statistically significant difference (p<0.05) among all the isolates and the fungus-free control. Comparing the results between isolates, difference was observed in some isolates of the genus Arthrobotrys (CG 719, I40, A1, A2, C1, B1), D. flagrans (CG722), Monacrosporium (CGI, SF53, NF34A) and N. robustus (D1) that showed a better capture and destruction results and consequently a greater decrease in the average of the uncaptured larvae recovered. The results showed that there may be variations in the predatory capacity of different species and among fungal isolates of the same species on Strongyloides papillosus and indicated that nematophagous fungi may be used for the biological control of this helminth. WALLER, 1998;JACOBS et al., 2016;TAYLOR et al., 2016). Infections by this parasite can cause gastrointestinal disturbances (enteritis, diarrhea and loss of appetite), affect body weight and delay growth and sudden death syndrome can occur (MEHLHORN, 2016;PIENNAR et al., 1999;TAIRA et al., 1992).In Brazil, benzimidazole and macrocyclic lactone anthelmintics are the principal forms of control used against gastrointestinal nematode parasites of ruminants (BOWMAN, 2010;CHARLES;FURLONG, 1996). However, the public health significance of anthelmintic drug residues in products of animal origin, the presence of these drugs in animal feces, their negative influence on biodiversity and agricultural ecosystem sustainability (due to the heavy reliance on systematic and sometimes abusive therapeutic use) and reports of helminth strains tolerant or resistant to different anthelmintic groups have triggered investigation into alternative methods for the sustainable control of gastrointestinal nematodes of ruminants (CAI et al., 2016;GRONVOLD et al., 1996;SUAREZ, 2002). The non-chemotherapeutic approach to the control of nematode gastrointestinal parasites of ruminants using nematophagous fungi as biological Campos et al. Acta Veterinaria Brasilica March 11 (2017) [213][214][215][216][217][218] 214 control agents showed consistent results (LARSEN, 2000;PAZ-SILVA et al., 2011). Because of differences in the nematophagous capacities of these fungi, studies to distinguish the species and the variations among them are required (ARAÚJO et al., 2004a;CARVALHO;BERNARDO;.The purpose of this study was to evaluate the activity of Brazilian isolates of nematophagous fungi of the Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus genera against S. papillosus larvae in laboratory conditions. MATERIALS AND METHODSCultures of 17 fungal isolates of the Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus genera (Table 1), grown on 1.7% corn meal agar culture media (CMA, DIFCO ® ) in test tubes, we...

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“…According to Charles and Furlong [6] and Lopes et al [16], among the chemical groups available for helminth control, injectable formulations containing macrocyclic lactones, such as ivermectin, are the most commonly used products in Brazil, followed by imidazothiazoles and benzimidazoles, primarily because they are practical and very safe.…”

Section: Discussionmentioning

confidence: 99%

Nematode resistance to ivermectin (630 and 700μg/kg) in cattle from the Southeast and South of Brazil

Felippelli

Lopes

Cruz

et al. 2014

Parasitology International

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A survey of dairy cattle worm control practices in Southeast Brazil

Cited by 13 publications

References 8 publications

Contrasting views of animal healthcare providers on worm control practices for sheep and goats in an arid environment

Contrasting views of animal healthcare providers on worm control practices for sheep and goats in an arid environment

In vitro nematophagous activity of predatory fungi on infective larvae of Strongyloides papillosus

Nematode resistance to ivermectin (630 and 700μg/kg) in cattle from the Southeast and South of Brazil

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