Document Detail


Administration of a long-acting antiparasitic to pre-pubertal ewe-lambs in Greece results in earlier reproductive activity and improved reproductive performance.
MedLine Citation:
PMID:  21183279     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We studied the reproductive effects of administration of a long-acting antiparasitic (moxidectin) given to pre-pubertal ewe-lambs in Greece at the beginning of the reproductive season. 45 animals, naturally infected with trichostrongylids, were allocated into treated (n=30, treatment on D0, 21 June) or control (n=15) group. Rams of confirmed fertility, were introduced from 15 August (D55) to 20 December (D182) into the ewe-lambs. Throughout the study (performed at latitude N 36°26', in a flock free from brucellosis, Chlamydophila infection and toxoplasmosis), epg counts were monitored and reproductive performance of ewes was assessed. Up to D112, arithmetic mean epg counts in treated animals were 0; thereafter and up to D350, they were 23-473. Respective figures for controls were 190-977 epg. Reproductive performance parameters for treated and control animals respectively, were as follows; median 'Interval to first mating after ram introduction': 36.5 d and 71.0 (P=0.04); median 'Age at first mating': 8.5m and 10.0m (P=0.045); 'Cycling rate': 20.0% and 6.7% (P=0.03); 'Mating rate': 86.7% and 66.7%; 'Return-to-oestrus rate': 26.7% and 26.7%; 'Abortion rate': 3.3% and 0%; 'Lambing rate': 83.3% and 66.7%; 'Total lambs born per ewe' and 'Liveborn lambs born per ewe': 1.5 and 1.1 (P=0.01); 'Stillbirth rate' 0% and 0% and 'Lamb bodyweight per ewe': 5.0kg and 3.8kg (P=0.005). Anthelmintic treatment of pre-pubertal ewes, in order to maximise reproductive performance may be employed as a management strategy according to targets set in individual flocks.
Authors:
V S Mavrogianni; E Papadopoulos; I A Fragkou; D A Gougoulis; I Valasi; D C Orfanou; S Ptochos; E Gallidis; G C Fthenakis
Related Documents :
20345969 - Long-term function after ileal pouch-anal anastomosis -function does not deteriorate ...
12352229 - Artificial anal sphincter: complications and functional results of a large personal ser...
9803099 - A prospective randomized study of calcium alginate (sorbsan) versus standard gauze pack...
3931269 - Electrical activity and motility in the isoperistaltic side to side ileal reservoir.
15972169 - Incidence and outcome of complications following restorative proctocolectomy.
11084569 - A randomized clinical trial comparing primary overlap with approximation repair of thir...
23283029 - Does aspirin use prevent acute coronary syndrome in patients with pneumonia: multicente...
10493479 - Is prophylactic gastrojejunostomy indicated for unresectable periampullary cancer? a pr...
11124859 - Markers of tumor invasion are major predictive factors for the long-term outcome of cor...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-4
Journal Detail:
Title:  Veterinary parasitology     Volume:  -     ISSN:  1873-2550     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7602745     Medline TA:  Vet Parasitol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
Affiliation:
Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Prevalence and genotypes of Toxoplasma gondii in feline faeces (oocysts) and meat from sheep, cattle...
Next Document:  Comparable results of epidemiology of children with burns among different decades in a burn unit in ...