RT Journal Article
T1 Integrating the control of helminths in dairy cattle: Deworming, rotational grazing and nutritional pellets with parasiticide fungi
A1 Voinot, Mathilde
A1 Cazapal Monteiro, Cristiana Filipa
A1 Hernández Malagón, José Ángel
A1 Palomero Salinero, Antonio Miguel
A1 Arroyo, Fabián Leonardo
A1 Sanchís, Jaime
A1 Pedreira, Jose
A1 Sánchez-Andrade Fernández, Rita
A1 Paz Silva, Adolfo
A1 Arias Vázquez, María Sol
K1 Biological control
K1 Ruminants
K1 Mucor circinelloides
K1 Duddingtonia flagrans
K1 Chlamydospores
K1 Sustainability
AB Thirty-two Friesian cattle under a leaders/followers four-day rotation and passing eggs of trematodes and gastrointestinal nematodes (GIN) were studied in two trials for the integrated control of these helminths over two years. In the first trial, the effect of rotational pasturing was assessed on a group of leaders (milking cows, G-L1) and followers (dried-off cows and heifers, G-F1) supplemented daily with commercial nutritional pellets. In the second trial, leaders (G-L2) and followers (G-F2) were maintained under a rotational pasturing regime; the cows received daily commercial pelleted feed and heifers pellets manufactured with a blend of parasiticide fungi (3 x 10(5) chlamydospores of both Mucor circinelloides and Duddingtonia flagrans/kg pellet). Deworming via closantel and albendazole was performed in cows in each trial at the beginning of their drying periods, and fourteen days later, the fecal egg-count reductions (FECR) of Calicophoron daubneyi and GIN were from 94 to 100% (average 98 %), while the percentages of reduction of cattle shedding eggs (CPCR) were from 50 to 100% (average 77 % and 82 %, respectively). The heifers were dewormed one time only, at the beginning of each trial, and the values of FECR and CPCR were 100 % against C. daubneyi and 96 % and 83 %, respectively, against GIN. Over a period of 24 months, significantly higher numbers of helminth egg-output were observed in G-L1, with the lowest numbers in G-F2. C. daubneyi egg output was reduced by 5 % (G-L1) and 42 % (G-F1) at the end of trial 1 and by 83 % (G-L2) and 100 % (G-F2) at the end of trial 2; the numbers of GIN egg-output decreased by 13 % (G-L1) and 18 % (G-F1) at the end of trial 1, and by 72 % (G-L2) and 85 % (G-F2) at the end of trial 2. No adverse effects were detected in cattle taking pellets enriched with fungal spores (G-F2). It is concluded that long-term ingestion of spores of M. circinelloides and D. flagrans provides a valuable tool to improve the effect of rotational grazing and to lessen the risk of infection by C. daubneyi and GIN in dairy cattle, and accordingly, the performance of integrated control programs.
PB Elsevier
SN 0304-4017
YR 2020
FD 2020-03-17
LK https://hdl.handle.net/10347/38946
UL https://hdl.handle.net/10347/38946
LA eng
NO Jaime Sanchís, José Pedreira, Rita Sánchez-Andrade, Adolfo Paz-Silva, María Sol Arias, Integrating the control of helminths in dairy cattle: Deworming, rotational grazing and nutritional pellets with parasiticide fungi, Veterinary Parasitology, Volume 278, 2020, 109038, ISSN 0304-4017, https://doi.org/10.1016/j.vetpar.2020.109038. (https://www.sciencedirect.com/science/article/pii/S0304401720300182)
NO This study was partly supported by the Research Projects AGL2012-34355 and CTM2015-65954-R (Ministerio de Economía y Competitividad, Spain; FEDER). Dr. María Sol Arias Vázquez is a recipient of a Ramón y Cajal (Spanish Ministry of Economy and Competitiveness) contract, and Dr. Cristiana F. Cazapal-Monteiro is a recipient of a postdoctoral research fellowship (Xunta de Galicia, Spain). We thank “Granxa Gayoso” (Diputación Provincial de Lugo, Spain) for their support in culturing the parasiticide fungi.
DS Minerva
RD 22 abr 2026