creators_name: Heckendorn, Felix
creators_name: Häring, Dieter Adrian
creators_name: Maurer, Veronika
creators_name: Zinsstag, Jakob
creators_name: Langhans, Wolfgang
creators_name: Hertzberg, Hubertus
type: journalp
datestamp: 2008-03-04
lastmod: 2009-08-20 14:38:43
metadata_visibility: show
title: Effect of sainfoin (Onobrychis viciifolia) silage and hay against gastrointestinal nematodes in lambs
ispublished: inpress
subjects: 5mall
subjects: 7animalhealth
subjects: 3feeding
full_text_status: restricted
keywords: Veterinärparasitologie, Endoparasitenkontrolle, Kondensierte Tannine, Development of organic agriculture, Condensed Tannins, Animal Health, Animal Nutrition
abstract: The objective of the studywas to examine the effect of dried and ensiled sainfoin (Onobrychis viciifolia) on established populations of Haemonchus contortus (abomasum) and Cooperia curticei (small intestine) in lambs under controlled conditions. Twenty-four parasite naı¨ve lambs were inoculated with a single dose of infective larvae of these parasites 28 days prior to the start of the feeding experiment. Twenty-four days post-infection, 4 days prior to the start of the feeding experiment, animals were allocated to four groups according to egg excretion, liveweight and sex. GroupsAandBreceived sainfoin hay and control hay, respectively, for 16 days. Groups CandDwere fed on sainfoin silage or control silage for the same period. Feeds were offered ad libitumand on the basis of daily refusals were supplemented with concentrate in order to make them isoproteic and isoenergetic. Individual faecal egg counts on a dry matter basis (FECDM) were performed every 3–4 days and faecal cultures and packed cell volume (PCV) measurements were done weekly. After 16 days of experimental feeding, all animals were slaughtered and adult wormpopulations were determined. The consumption of conserved sainfoin was associated with a reduction of adult H. contortus (47%in the case of hay, P < 0.05; 49%in the case of silage, P = 0.075) but had little effect on adult C. curticei. Compared to the controls, H. contortus specific FECDM was reduced by 58% (P < 0.01) in the sainfoin hay group and by 48%(P = 0.075) in the sainfoin silage group. For both sainfoin feeds FECDMspecific to C. curticei were significantly decreased when compared to the control feeds (hay 81% and silage 74%, both tests P < 0.001). Our data suggest that different mechanisms were responsible for the reduction in FECDM in response to feeding tanniferous fodder. For H. contortus, the decrease seemed to be due to a nematocidal effect towards adult H. contortus. In contrast for C. curticei, the reduction in FECDM appeared to be a result of a reduced per capita fecundity. For both, hay and silage, an antiparasitic effect could be shown, offering promising perspectives for the use of conserved tanniferous fodder as a complementary control approach against GIN.
# 2006 Elsevier B.V. All rights reserved.
date: 2006
date_type: published
publication: Veterinary Parasitology
volume: 142
number: Issues 3-4
publisher: Elsevier
pagerange: 293-300
refereed: yes
citation: Heckendorn, Felix; Häring, Dieter Adrian; Maurer, Veronika; Zinsstag, Jakob; Langhans, Wolfgang and Hertzberg, Hubertus (2006) Effect of sainfoin (Onobrychis viciifolia) silage and hay against gastrointestinal nematodes in lambs. Veterinary Parasitology, 142 (Issues 3-4), pp. 293-300. [ In Press , 2006]
document_url: http://orgprints.org/13141/1/heckendorn-etal-2006-vet_parasitol.pdf