Predatory effect of Duddingtonia flagrans on infective larvae of gastro-intestinal parasites under sunny and shaded conditions

Bilotto, Franco; Fusé, L. A.; Sagüés, María Federica; Iglesias, Lucía; Fernández, A.; Zegbi, Sara; Guerrero, Inés; Saumell, Carlos

doi:10.1016/j.exppara.2018.07.016

Cited by 16 publications

(12 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the fourth faecal pad collection, there was an increase in non-predated infective larvae in the control group; whereas in the treated group, there was a reduction in larvae from collection 3 to collection 4. Previous studies also showed a reduction (range: 60–90%) in the number of infective larvae present in faecal pads of cattle that received D. flagrans (Saumell et al , 2015; Bilotto et al , 2018; Healey et al , 2018).…”

Section: Discussionmentioning

confidence: 85%

Predatory activity of nematophagus fungus Duddingtonia flagrans in infective larvae after gastrointestinal transit: biological control in pasture areas and in vitro

et al. 2021

View full text Add to dashboard Cite

Biological control is a strategy to decrease parasitic populations, and the action takes place through natural antagonists in the environment. We studied the predatory activity of the fungus Duddingtonia flagrans in infective larvae (L3) of gastrointestinal nematodes after gastrointestinal transit. Ten heifers were divided into two groups: treated (animals received pellets containing fungus) and control (animals received pellets without fungus). Twelve hours after administration, faeces samples were collected for in vitro efficacy tests. The animals then remained for 7 h in the experimental pasture area. At the end of this period, 20 faecal pads (ten treated and ten control) were selected at random. Pasture, faecal pad and soil collections occurred with an interval of 7 days, totalling four assessments. In vitro activity demonstrated that fungi effectively preyed on L3, achieving a reduction percentage of 88%. In the faecal pad of the pasture area, there was a difference (P < 0.05) between collections 3 and 4 for both groups; in the treated group a reduction of 65% was obtained, while in the control group there was an increase of 217% in the number of L3. The recovery of L3 in the soil and in the pasture was similar in both groups. There was no influence (P = 0.87) of the passage time on the fungus predatory activity. Duddingtonia flagrans demonstrated the ability to survive gastrointestinal transit in the animals, reducing the number of L3 in the faeces, indicating that this biological control has great potential in the control of worm infections.

show abstract

Section: Discussionmentioning

confidence: 85%

Predatory activity of nematophagus fungus Duddingtonia flagrans in infective larvae after gastrointestinal transit: biological control in pasture areas and in vitro

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In some effectiveness studies the temperature of 30° C has been seen as optimal (Buske et al, 2013). In recent cattle pasture study in Argentina predatory activity of D. flagrans has been evident in summer, but it has not been manifested in winter (Bilotto et al, 2018).…”

Section: Generalizability Of the Resultsmentioning

confidence: 99%

Sustainable Control of Equine Nematodes: A Literature Review about Control by Fungal Cultures

Koskinen¹

2019

SAR

View full text Add to dashboard Cite

Larsen, Nansen, Grönvold, have previously reviewed the prospects of control of equine nematodes by using fungal cultures. Since then more investigations have been implemented and actualized. Field trials and laboratory tests have been reported with new perspectives and increasing number of animals in trials. The aim of this new review of literature is to add new knowledge to those questions that remained open in the 1990s. In particular, on the perspective of veterinary practitioner and sustainable use of deworming practices it is important to know those directions which should be followed.Larsen et al have chosen the term "nematodes-destroying fungi" instead of "nematophagous fungi" because of the nature of fungi as the main or as a supplement food source of free-living soil nematodes. The use of

show abstract

“…Nematode predatory ability observed in this test can be related to the behavior of the fungus in feces. That is, when exposed to extreme temperature conditions, the nematode predatory ability decreases [28]. In the study published by Buske et al [29], the effect of temperature on the fungal activity of D. flagrans was studied, showing that the nematode predatory ability increased as the temperature increased until 30°C; at a higher temperature of 35°C, the fungal activity started decreasing.…”

Section: Discussionmentioning

confidence: 99%

In vitro evaluation of physicochemical variables on the nematophagous fungus Duddingtonia flagrans

et al. 2021

View full text Add to dashboard Cite

Duddingtonia flagrans is a biological alternative to the use of anthelmintic drugs in ruminants. This fungus must be ingested by the animal, pass through the cavities of the digestive tract and reach the feces where it develops traps that capture the nematodes. The severe conditions encountered in this process negatively affect the fungus, which is reflected in the low recovery rates compared to the amount administered. The aim of this study was to evaluate independently the in vitro effect of typical physical and chemical conditions of the gastrointestinal cavities of ruminants on the concentration, viability, and the in vitro nematode predatory ability of the chlamydospores of D. flagrans. The factors evaluated individually were pH (2, 6, and 8), temperature (28 ± 2°C and 39 ± 2°C), exposure to artificial saliva, and milling. The results showed that the concentration and viability of D. flagrans were not affected by the action of pH, temperature, milling, or exposure to artificial saliva. Regarding the in vitro nematode predatory ability, a reduction was observed after the milling process and the exposure for 24 h at different pH.

show abstract

Predatory effect of Duddingtonia flagrans on infective larvae of gastro-intestinal parasites under sunny and shaded conditions

Cited by 16 publications

References 41 publications

Predatory activity of nematophagus fungus Duddingtonia flagrans in infective larvae after gastrointestinal transit: biological control in pasture areas and in vitro

Predatory activity of nematophagus fungus Duddingtonia flagrans in infective larvae after gastrointestinal transit: biological control in pasture areas and in vitro

Sustainable Control of Equine Nematodes: A Literature Review about Control by Fungal Cultures

In vitro evaluation of physicochemical variables on the nematophagous fungus Duddingtonia flagrans

Contact Info

Product

Resources

About