Egg production dynamics and fecundity of Heterakis gallinarum residing in different caecal environments of chickens induced by fibre-rich diets

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dc.authoridSavaş, Türker/0000-0002-3558-2296
dc.authoridGauly, Matthias/0000-0003-4212-5437
dc.authoridDas, Gurbuz/0000-0001-6690-0050
dc.contributor.authorDas, Guerbuez
dc.contributor.authorAbel, Hansjörg
dc.contributor.authorSavaş, Türker
dc.contributor.authorSohnrey, Birgit
dc.contributor.authorGauly, Matthias
dc.date.accessioned2025-01-27T21:05:25Z
dc.date.available2025-01-27T21:05:25Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn modern husbandry systems, feed rations for laying hens may contain high levels of dietary fibre, which may only be fermented intestinally. Depending on fermentation properties, the type of dietary fibre may influence the intra-caecal environment constituting the predilection site of Heterakis gallinarum. We investigated egg production dynamics and fecundity of H. gallinarum residing in different caecal environments induced through different types of dietary fibre. Growing layers were fed a standard (CON) or an insoluble(I-) or soluble- (S-) non-starch polysaccharides-(NSP) supplemented diet for the first 11 weeks (wk) of life in a twice-replicated experiment. At 3 wk of age, the birds were infected with 200 embryonated eggs of H. gallinarum. Starting from 3 wk post-infection (p.i.), individual daily total excreta were collected. The number of eggs per gram of faeces (EPG) was determined (N = 2240), and the number of eggs per day (EPD) were estimated. The birds were necropsied 8 wk p.i. and the worm burdens were quantified. The nematode began to lay eggs as early as 23 d.p.i. and thereafter laid on average 436 eggs/d. I-NSP- and S-SNP-supplemented diets expedited the onset of patency by approximately 5 days, and increased total egg excretion by 110% and 185%, respectively, due to higher worm counts. The latter diet (S-SNP) additionally increased total egg excretion by 94% due to enhanced fecundity. Longitudinally collected data showed that fecundity of the nematode (EPD/female) was relatively stable starting from the second week of the patent phase. Results suggest that NSP-induced enlargement of caeca favoured establishment of the nematode while effects of an intensified microbial fermentation through S-NSP were crucial for an enhancement in the worm fecundity. Based on the long-term data obtained from daily collections of total excreta in experimentally H. gallinarum-infected chickens, it is concluded that a diet enriched with pea bran as source of insoluble NSP increased worm egg production merely through elevated worm counts, whereas a diet supplemented with chicory root meal as source of soluble NSP elevated worm egg production through both increased worm counts, and more profoundly through enhanced fecundity. (C) 2014 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.vetpar.2014.08.008
dc.identifier.endpage618
dc.identifier.issn0304-4017
dc.identifier.issn1873-2550
dc.identifier.issue3-4
dc.identifier.pmid25200385
dc.identifier.scopus2-s2.0-85027924590
dc.identifier.scopusqualityQ1
dc.identifier.startpage606
dc.identifier.urihttps://doi.org/10.1016/j.vetpar.2014.08.008
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27637
dc.identifier.volume205
dc.identifier.wosWOS:000344425200025
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofVeterinary Parasitology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectDietary fibre
dc.subjectFaecal egg counts
dc.subjectHost diet
dc.subjectParasite fecundity
dc.subjectProlificacy
dc.subjectWorm burden
dc.titleEgg production dynamics and fecundity of Heterakis gallinarum residing in different caecal environments of chickens induced by fibre-rich diets
dc.typeArticle

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