Integrating the control of helminths in dairy cattle: Deworming, rotational grazing and nutritional pellets with parasiticide fungi

Voinot, M.; Cazapal-Monteiro, C.; Hernández, José Ángel; Palomero, A. M.; Arroyo, F.L.; Sanchís, J.; Pedreira, J.; Sánchez-Andrade, R.; Silva, Adolfo Paz; Arias, M.

doi:10.1016/j.vetpar.2020.109038

Cited by 15 publications

(9 citation statements)

References 33 publications

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“…Despite many anthelmintic drugs being commercially available, the control of gastrointestinal parasites such as strongyles in grazing livestock remains a pending question due to the risk of rapid infection by infective L3 larval stages present in the soil and pasture [20]. With the objective of ensuring proper animal nutrition, rotational pasturing systems are often adopted [17,18]. In the current study, the deworming of first-season grazing ewe lambs with albendazole was successful (FECR > 95%), and five out of eight individuals did not pass eggs one month later.…”

Section: Discussionmentioning

confidence: 99%

“…Feces were analyzed by means of a quantitative flotation method (McMaster), consisting of 3 g feces of each sample homogenized in 42 mL water, and then the solution was filtered through a 150 µm mesh to two 12 mL filled tubes and centrifuged at 1500 rpm for 10 min. After discarding the supernatant, 10 mL saturated sodium chloride solution (gravity = 1.2) was added to the sediment and then observed in a McMaster chamber under a light microscope (Leica DM2500) at 10× [18,33].…”

Section: Coprological Analysesmentioning

confidence: 99%

“…By considering the usefulness of the information obtained in previous investigations [17,18], the reduction of the individuals positive to coprological tests (IPCR) was also estimated according to the formula:…”

Section: Coprological Analysesmentioning

confidence: 99%

“…In recent years, satisfactory results have been demonstrated in reducing fecal egg counts and improving the health status among livestock and captive wildlife species receiving, weekly, for periods longer than ten months, a blend of chlamydospores of the parasiticide fungi Mucor circinelloides (ovicide) and Duddingtonia flagrans (larvicide) [17][18][19]. The current in vivo study aimed to test this blend against strongyles affecting ewe lambs in a northern Spanish farm.…”

Section: Introductionmentioning

confidence: 99%

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Control of Strongyles in First-Season Grazing Ewe Lambs by Integrating Deworming and Thrice-Weekly Administration of Parasiticidal Fungal Spores

Voinot

Bonilla²,

Sousa

et al. 2021

Pathogens

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Parasiticidal fungi have been used in several in vivo experiments in livestock farms worldwide, constituting an effective tool for the biocontrol of gastrointestinal parasites in grazing animals. In the first year of study, two groups of eight first-season pasturing ewe lambs infected by strongyles were dewormed with albendazole, and then, the test group received an oral dose of 106 chlamydospores of Mucor circinelloides and 106 Duddingtonia flagrans individually and thrice a week from mid-September to May (FS1), while the control group remained without fungi (CT1). In the second year, two new groups of first-season grazing ewe lambs were treated with ivermectin and subjected to the same experimental design (FS2 and CT2, respectively). The anthelmintic efficacy was 96.6% (CT1), 95.6% (FS1), 96.1% (CT2), and 95.1% (FS2). The counts of strongyle egg output increased in the control groups (CT1 and CT2) throughout the study and reached numbers higher than 600 eggs per gram of feces (EPG), while in FS1 and FS2, they were <250 EPG. The values of red blood cell parameters registered for CT1 and CT2 were lower than those of the reference standards, while a significant increment was recorded in FS1 and FS2, and values within the physiological range were attained. It is concluded that integrating efficient anthelminthic deworming with rotational pasturing and the regular intake of chlamydospores of M. circinelloides and D. flagrans provides a helpful strategy for maintaining low levels of strongyle egg output in first-season grazing ewe lambs and improves their health status.

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Section: Discussionmentioning

confidence: 99%

Section: Coprological Analysesmentioning

confidence: 99%

Section: Coprological Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Control of Strongyles in First-Season Grazing Ewe Lambs by Integrating Deworming and Thrice-Weekly Administration of Parasiticidal Fungal Spores

Voinot

Bonilla²,

Sousa

et al. 2021

Pathogens

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“…With daily administration of a mixture of M. circinelloides and D. flagrans chlamydospores, a grazing dairy herd was not reinfected by C. daubneyi for a period of two years, and the strongylide count in feces was less than 110 EPG. No adverse effects were detected in any animal [72].…”

Section: Advances In the Control Of Gastrointestinal Nematodes In Pasture Animalsmentioning

confidence: 82%

Recent Advances in the Control of Helminths of Domestic Animals by Helminthophagous Fungi

et al. 2021

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This review describes the advances acquired and proven in the use of helminthophagous fungi in the control of gastrointestinal helminth parasites in domestic animals. Old and well-known premises about parasitic epidemiology and the factors that can interfere with the best performance of biological control are mentioned. Some of the most promising fungi are Duddingtonia flagrans from the predatory fungi group and Pochonia chamydosporia and Mucor circinelloides from the ovicidal fungi group. These fungi produce resistance spores called chlamidospores. Bioverm® and BioWorma®, based on the fungus D. flagrans, are available as commercial. Biotechnological products such as nanoparticles and obtaining primary and secondary metabolites have already been obtained from these fungi. Because they have different mechanisms of action, ovicidal and predatory fungi, when used together, can present a complementary and synergistic action in the biological control of helminths. Therefore, future research in the search for new formulations, the association of fungi from different groups, extraction of new molecules, and nanoparticles of these fungi in the control of helminths in various domestic animals are desired.

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Advances in diagnosis and control of anthelmintic resistant gastrointestinal helminths infecting ruminants

Hassan

Ghazy

2021

J Parasit Dis

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Integrating the control of helminths in dairy cattle: Deworming, rotational grazing and nutritional pellets with parasiticide fungi

Cited by 15 publications

References 33 publications

Control of Strongyles in First-Season Grazing Ewe Lambs by Integrating Deworming and Thrice-Weekly Administration of Parasiticidal Fungal Spores

Control of Strongyles in First-Season Grazing Ewe Lambs by Integrating Deworming and Thrice-Weekly Administration of Parasiticidal Fungal Spores

Recent Advances in the Control of Helminths of Domestic Animals by Helminthophagous Fungi

Advances in diagnosis and control of anthelmintic resistant gastrointestinal helminths infecting ruminants

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