Effects of legume forages on ovine gastrointestinal parasite development, migration and survival

Veterinary Parasitology
C L MarleyR Jones

Abstract

Lambs grazing certain legumes have reduced parasite intensities compared to lambs grazing ryegrass swards. Eighteen replicates of white clover (cv. AberHerald), lucerne (cv. Luzelle), red clover (cv. Merviot) and perennial ryegrass (cv. Abersilo) were sown at equivalent field rates in 25 cm diameter PVC pots and maintained outside for 6 months. On day 0, forage in each pot was cut to 50 mm from soil level and the pots were placed in a glasshouse (at 19-25 degrees C and 70% humidity) in a randomised block design. Ten grams sheep faeces containing 2,133 Haemonchus contortus eggs per gram were placed on the soil in each pot. Six replicates of each forage were destructively sampled on days 14, 21 and 29. Forage samples were cut at 50 mm from the soil surface and at the soil surface to give two samples per pot. The number of nematodes was determined by a modification of the Whitehead tray method. The ratio of free-living to infective-stage larvae was determined from at least 10% of the larvae. The number of H. contortus larvae kgdrymatter(-1) (DM) forage was calculated and the data rank transformed prior to analysis by ANOVA. There were fewer larvae on legumes compared with ryegrass on samples from forage above 50 mm (P<0.001) but t...Continue Reading

References

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Citations

Oct 13, 2006·Parasitology·S AthanasiadouI Kyriazakis
Nov 1, 2008·Tropical Animal Health and Production·Aruaque L F OliveiraAlessandro F T Amarante
Dec 14, 2011·Veterinary Parasitology·Jos G M HoudijkSpiridoula Athanasiadou
Oct 9, 2007·Phytochemistry·Simone RochfortFrank R Dunshea
Sep 10, 2011·The Veterinary Journal·Joshua P A SweenyC Jacobson
Dec 18, 2014·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Raquel Abdallah da RochaAlessandro Francisco Talamini do Amarante
Jan 9, 2013·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Raquel Abdallah da RochaAlessandro Francisco Talamini do Amarante
Mar 7, 2009·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Raquel A da RochaAlessandro F T Amarante

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