Unexpected Decrease in Milk Production after Fenbendazole Treatment of Dairy Cows during Early Grazing Season

PloS One
N RavinetA Chauvin

Abstract

Gastrointestinal nematodes (GIN) infection can impair milk production (MP) in dairy cows. To investigate whether MP would be optimized by spring targeted-selective anthelmintic treatment in grazing cows, we assessed (1) the effect on MP of an anthelmintic treatment applied 1.5 to 2 months after turn-out, and (2) herd and individual indicators associated with the post-treatment MP response. A randomized controlled clinical trial was conducted in 13 dairy farms (578 cows) in western France in spring 2012. In each herd, lactating cows of the treatment group received fenbendazole orally, control cows remained untreated. Daily cow MP was recorded from 2 weeks before until 15 weeks after treatment. Individual serum pepsinogen and anti-Ostertagia antibody levels (expressed as ODR), faecal egg count and bulk tank milk (BTM) Ostertagia ODR were measured at treatment time. Anthelmintic treatment applied during the previous housing period was recorded for each cow. In each herd, information regarding heifers' grazing and anthelmintic treatment history was collected to assess the Time of Effective Contact (TEC, in months) with GIN infective larvae before the first calving. The effect of treatment on weekly MP averages and its relationships...Continue Reading

References

Dec 1, 1979·The Veterinary Record·D G McBeathN K Preston
Oct 9, 1965·The Veterinary Record·N AndersonG M Urquhart
Nov 1, 1994·Australian Veterinary Journal·J W LarsenH Hoste
Feb 14, 1998·Veterinary Parasitology·J Vercruysse, E Claerebout
Jun 23, 1999·The Veterinary Record·S J GrossH W Ploeger
Sep 10, 1999·International Journal for Parasitology·J W LarsenA L Vizard
Apr 7, 2000·Advances in Parasitology·A BalicE N Meeusen
May 9, 2000·Veterinary Parasitology·F H BorgsteedeC P Gaasenbeek
Jun 1, 2000·Veterinary Parasitology·J AgneessensJ Vercruysse
Nov 30, 2000·Parasitology Research·L G CramerA E Maciel
Apr 6, 2002·Veterinary Parasitology·Ane NødtvedtGreg Keefe
Jul 21, 2005·New Zealand Veterinary Journal·W B McPhersonW G Ryan
Sep 23, 2006·Veterinary Parasitology·Johannes CharlierJozef Vercruysse
Dec 8, 2006·New Zealand Veterinary Journal·T S WaghornJ R Moffat
May 6, 2009·Veterinary Parasitology·Johannes CharlierJozef Vercruysse
Dec 21, 2010·Trends in Parasitology·Ian A Sutherland, Dave M Leathwick
Dec 23, 2011·Veterinary Parasitology·F Kenyon, F Jackson
May 7, 2014·Veterinary Parasitology·Louis C Gasbarre
Jun 7, 2014·The Veterinary Record·J O'ShaughnessyT de Waal

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Citations

Mar 21, 2019·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Barbara Haline Buss BaiakRaquel Abdallah da Rocha

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Anthelmintics (ASM)

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.

Anthelmintics

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.