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Dissertations / Theses on the topic 'Trichostrongylus colubriformis'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Cardia, Daniel Fontana Ferreira [UNESP]. "Resposta imunologica e fisiopatologia das infecções artificiais por Trichostrongylus colubriformis em cordeiros Santa Inês." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/89283.

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Made available in DSpace on 2014-06-11T19:23:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-02-17Bitstream added on 2014-06-13T19:10:00Z : No. of bitstreams: 1 cardia_dff_me_botfmvz.pdf: 585057 bytes, checksum: f3c3565d13f02268ca436eddfd676ae7 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Com o objetivo de se investigar a resposta imunológica e fisiopatologia das infecções por Trichostrongylus colubriformis em cordeiros Santa Inês, trinta ovinos foram agrupados em 10 classes, de acordo com seu peso vivo, sendo cada uma destas constituída de três animais

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2

Kimambo, A. E. "Nutritional penalties associated with subclinical infection of lambs with the intestinal roundworm, Trichostrongylus colubriformis." Thesis, University of Aberdeen, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377317.

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3

Cardia, Daniel Fontana Ferreira. "Resposta imunologica e fisiopatologia das infecções artificiais por Trichostrongylus colubriformis em cordeiros Santa Inês /." Botucatu : [s.n.], 2009. http://hdl.handle.net/11449/89283.

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Orientador: Alessandro Francisco Talamini do Amarante<br>Banca: Maria Cecilia Rui Luvizotto<br>Banca: Rogerio Martins Amorin<br>Resumo: Com o objetivo de se investigar a resposta imunológica e fisiopatologia das infecções por Trichostrongylus colubriformis em cordeiros Santa Inês, trinta ovinos foram agrupados em 10 classes, de acordo com seu peso vivo, sendo cada uma destas constituída de três animais. Por sorteio, um animal de cada classe constituiu o grupo infectado artificialmente com 2500 larvas de T. colubriformis, três vezes por semana, ao longo de 13 semanas e alimentado ad libitum, ou

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4

Hoste, Hervé. "Reponse adaptative de l'intestin grele chez des lapins parasites par le nematode trichostrongylus colubriformis." Paris 6, 1987. http://www.theses.fr/1987PA066435.

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5

Hoste, Hervé. "Réponse adaptative de l'intestin grêle chez des lapins parasités par le nématode Trichostrongylus colubriformis." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37605972x.

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6

Hailu, Tolossa Yacob. "Interactions entre Oestrus ovis (Diptera : Oestridae) et Trichostrongylus colubriformis (Nematoda : Trichostrongylidae) chez le mouton : exploration des réactions cellulaires éosinophiliques et mastocytaires lors d'infestations expérimentales." Toulouse, INPT, 2004. http://www.theses.fr/2004INPT010A.

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L'étude des interactions entre Oestrus ovis (Diptera : Oestridae) et Trichostrongylus colubriformis (Nematoda : Trichostronglidae) chez le mouton a montré qu' O. Ovis avait un effet négatif sur l'installation et la reproduction de T. Colubriformis. Le nombre de vers installés, leur fécondité et le nombre d'oeufs éliminés dans les matières fécales sont significativement diminués. En revanche, une infestation préalable par T. Colubriformis n'a pas d'influence sur une infestation ultérieure par O. Ovis. Ces parasites provoquent l'arrivée de nombreux mastocytes, globules leucocytes et éosinophiles

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7

Maclean, John McPhee. "Some aspects of local immunity and pathogenesis in rodents infected with Nippostrongylus brasiliensis or Trichostrongylus colubriformis." Thesis, University of Glasgow, 1985. http://theses.gla.ac.uk/2525/.

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8

Silva, Tairon Pannunzio Dias e. "Modelagem de fósforo em cordeiros submetidos à infecção experimental com Trichostrongylus colubriformis com uso de 32P." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/64/64134/tde-19052017-151023/.

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Objetivando-se avaliar variáveis hemato-bioquímicas, digestibilidade aparente dos nutrientes e desempenho animal, assim como, o metabolismo e a cinética do fósforo (P) em cordeiros infectados experimentalmente com Trichostrongylus colubriformis, foram realizados dois experimentos. No primeiro estudo, foram utilizados 18 cordeiros machos, da raça Santa Inês, distribuídos em dois tratamentos experimentais: grupo infectado (I, n=9) e grupo controle (C, n=9) sem infecção. Os cordeiros do grupo I receberam aproximadamente 5000 L3, três vezes por semana, durante três semanas, totalizando 45000 L3 de

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9

Almeida, Fabiana Alves de [UNESP]. "Caracterização da resistência a anti-helmíntico de isolados de Haemonchus contortus e trichostrongylus colubriformis orieundo de ovinos." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/87795.

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Made available in DSpace on 2014-06-11T19:23:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-10-26Bitstream added on 2014-06-13T19:49:31Z : No. of bitstreams: 1 almeida_fa_me_botib.pdf: 203073 bytes, checksum: 9bdfd8107be2ad00c88771bd9a61ee7c (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O estudo teve por objetivo determinar o grau de eficácia da levamisol, albendazol, ivermectina, moxidectina, closantel e triclorfon em isolados de Haemonchus contortus e Trichostrongylus colubriformis. Quarenta e dois cordeiros da raça Santa Inês, com três meses de

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Rocha, Raquel Abdallah da [UNESP]. "Sobrevivência e migração vertical de larvas infectantes de Trichostrongylus colubriformis em gramíneas, nas diferentes estações do ano." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/104111.

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Made available in DSpace on 2014-06-11T19:32:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-04-24Bitstream added on 2014-06-13T19:43:51Z : No. of bitstreams: 1 rocha_ra_dr_botfmvz.pdf: 361805 bytes, checksum: 5c55d3f7c6f6c5d5c1f2a2ed98259327 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>O experimento teve como objetivo avaliar a sobrevivência de larvas infectantes (L3) de Trichostrongylus colubriformis em três espécies forrageiras. Para tal, foram utilizados módulos experimentais constituídos por seis cant

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11

Almeida, Fabiana Alves de. "Caracterização da resistência a anti-helmíntico de isolados de Haemonchus contortus e trichostrongylus colubriformis orieundo de ovinos /." Botucatu, 2009. http://hdl.handle.net/11449/87795.

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Orientador: Alessandro Francisco Talamini do Amarante<br>Banca: Maria Conceição Zocoller Seno<br>Banca: Raquel A. da Rocha de Oliveira<br>Resumo: O estudo teve por objetivo determinar o grau de eficácia da levamisol, albendazol, ivermectina, moxidectina, closantel e triclorfon em isolados de Haemonchus contortus e Trichostrongylus colubriformis. Quarenta e dois cordeiros da raça Santa Inês, com três meses de idade, foram infectados artificialmente com 4000 larvas infectantes (L3) de H. contortus e 4000 L3 de T. colubriformis. Os animais foram separados em sete grupos, com seis animais cada, os

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Rocha, Raquel Abdallah da 1978. "Sobrevivência e migração vertical de larvas infectantes de Trichostrongylus colubriformis em gramíneas, nas diferentes estações do ano /." Botucatu : [s.n.], 2006. http://hdl.handle.net/11449/104111.

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Orientador: Alessandro Francisco Talamine do Amarante<br>Banca: Solange Maria Gennari<br>Banca: Cledson Augusto Garcia<br>Banca: Reinaldo José da Silva<br>Banca: Patrizia Ana Bricarello<br>Resumo: O experimento teve como objetivo avaliar a sobrevivência de larvas infectantes (L3) de Trichostrongylus colubriformis em três espécies forrageiras. Para tal, foram utilizados módulos experimentais constituídos por seis canteiros de 32,4 m2 cada, estabelecidos com as seguintes gramíneas forrageiras: Brachiaria decumbens cv. Australiana, Cynodon dactilon cv. Coast-cross e Panicum maximum cv. Aruana, pe

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13

Carvalho, Nadino. "Suplementação alimentar em cordeiros influência sobre a imunidade do hospedeiro, biologia e patogenia de Haemonchus contortus e Trichostrongylus colubriformis /." Botucatu, 2017. http://hdl.handle.net/11449/151530.

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Orientador: Alessandro Francisco Talamini do Amarante<br>Resumo: Na produção animal o planejamento nutricional inadequado desencadeia grandes prejuízos ao sistema produtivo, trazendo consequências adversas aos animais e menores lucros ao criador. Este trabalho teve por objetivo avaliar a influência da suplementação alimentar sobre a imunidade dos cordeiros, biologia e patogenia de Haemonchus contortus e Trichostrongylus colubriformis. Quarenta e quatro cordeiros machos da raça Dorper com aproximadamente quatro meses e 31,5±3,24 kg de peso corporal foram alocados aleatoriamente em quatro dietas

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Lima, Caroline Sprengel. "Avaliação de extratos e substâncias de Pterogyne nitens Tul. (Fabaceae) contra nematoides de interesse veterinário /." São José do Rio Preto, 2020. http://hdl.handle.net/11449/192745.

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Orientador: Luis Octavio Regasini<br>Resumo: Um dos maiores problemas sanitários encontrados pela pecuária são os nematoides gastrintestinais (NGIs), os quais causam perdas significativas aos pecuaristas de pequenos ruminantes. O controle de NGIs é realizado com base na administração repetida e imprópria dos anti-helmínticos (AHs) convencionais, havendo uma crescente presença de resíduos no meio ambiente ou em produtos de consumo. Acima de tudo, o desenvolvimento de resistência em populações de NGIs tornou-se um problema mundial. A fim de preservar a saúde dos hospedeiros, bem como retardar a

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15

Lacroux, Caroline. "Régulation des populations de Nématodes gastro-intestinaux (Haemonchus contortus et Trichostrongylus colubriformis) dans deux races ovines, INRA 401 et Barbados Black Belly." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7458/1/lacroux.pdf.

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Les Nématodes gastro-intestinaux sont des parasites majeurs en élevage ovin. Actuellement, leur contrôle repose sur l'utilisation de molécules anthelminthiques. L'extension de résistances à ces molécules dans les populations de strongles rend urgente la recherche de solutions alternatives comme la sélection d'animaux résistants. Toutefois, la méconnaissance des mécanismes de la réponse immunitaire des ovins contre ces strongles reste un obstacle à son développement. La première partie de nos travaux a démontré une orientation Th2 claire lors d'infestation par Haemonchus contortus et plus équiv

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16

Lacroux, Caroline Dorchies Philippe. "Régulation des populations de Nématodes gastro-intestinaux (Haemonchus contortus et Trichostrongylus colubriformis) dans deux races ovines, INRA 401 et Barbados Black Belly." Toulouse : INP Toulouse, 2006. http://ethesis.inp-toulouse.fr/archive/00000299.

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17

Kandu-Lelo, Clement. "The potential use of the invasive species Cereus jamacaru (Cactaceae) to control nematode infections in sheep." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/27151.

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This study was stimulated by a publication of Mr Mike Bosch (Bosch 2007) that Cereus jamacaru DC (Cactaceae) used by him on his farm is effective for gastrointestinal nematode control in livestock. This plant, widely known as Queen of the night, is a serious invasive weed. We evaluated this claim in in vitro assays and in vivo experiments in sheep experimentally infected with Haemonchus contortus and Trichostrongylus colubriformis. This is the first report of such an anthelmintic trial in livestock involving C. jamacaru. The first study was to repeat the farmer’s work under strictly controlled

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18

Normand, Alexia Delannoy. "Recherche de gènes impliqués dans l'installation du strongle Haemonchus contortus par une approche transcriptomique." Thesis, Tours, 2010. http://www.theses.fr/2010TOUR4034/document.

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Parmi les nématodes gastro-intestinaux ayant un impact majeur sur la santé des ruminants Haemonchus contortus est l’espèce la plus pathogène. Actuellement, le contrôle des populations parasitaires repose sur les traitements anthelminthiques dont l’efficacité est limitée par l’émergence de parasites résistants. L'établissement de nouvelles stratégies de lutte (thérapeutiques ou vaccinales) repose actuellement sur l'identification de nouvelles cibles moléculaires. Ainsi, les gènes spécifiquement régulés lors de la phase précoce d’interaction du parasite H. contortus avec son hôte sont des cibles

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Greer, Andrew Walter. "Estimates of the nutritional cost of the development of immunity to gastrointestinal parasites in sheep." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2005. http://theses.lincoln.ac.nz/public/adt-NZLIU20060913.203642.

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This thesis describes a series of three experiments designed to estimate the nutritional cost of the immune response to the gastrointestinal nematodes Trichostrongylus colubriformis and Teladorsagia circumcincta in sheep. For each experiment, animals were allocated hierarchically by liveweight into one of four groups that were either infected (group IF), similarly infected and concurrently immuno-suppressed with weekly intramuscular injections of 1.3mg kg liveweight (LW)-1 of methylprednisolone acetate (group ISIF), immuno-suppressed only (group IS) or remained as controls (group C). Body co

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20

Vasconcelos, Cleydlenne Costa. "Efeito da suplementação com pó da casca de acácia (Acacia mangium WilldMimosaceae) sobre a resposta imunológica e infecções por Haemonchus contortus e trichostrongylus colubriformis em caprinos." Universidade Federal de Minas Gerais, 2014. http://hdl.handle.net/1843/BUOS-9MHKK3.

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The development of goat breeding is largely impaired by losses due to gastrointestinal nematodes infection and the main control method, the use of synthetic anthelmintics face problems due to the growing selection of resistant populations of nematodes, making it imperative to search for new methods of control. The secondary metabolites present in several plants with bioactive properties represent a promising alternative for the control of worms parasites of small ruminants and may act directly or indirectly on the parasites. The aim of this study was to assess whether food supplementation with

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Fadel, Rossala. "Desempenho e características quantitativas e qualitativas da carcaça de ovinos Santa Inês alimentados com a leguminosa Sansão do Campo (mimosa caesalpiniifolia benth) e infectados com trichostrongylus colubriformis." reponame:Repositório Institucional da UnB, 2011. http://repositorio.unb.br/handle/10482/11140.

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Tese (doutorado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Programa de Pós-Graduação em Ciências Animais, 2011. Brasília, 2011.<br>Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2012-09-11T15:41:43Z No. of bitstreams: 1 2012_RossalaFadel.pdf: 831128 bytes, checksum: aa7ed8d04c2c92aba111e02851744986 (MD5)<br>Approved for entry into archive by Luanna Maia(luanna@bce.unb.br) on 2012-09-12T12:21:49Z (GMT) No. of bitstreams: 1 2012_RossalaFadel.pdf: 831128 bytes, checksum: aa7ed8d04c2c92aba111e02851744986 (MD5)<br>Made available in DSpace on 2012-09-12T1

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Martinez-Ortiz-de-Montellano, Cintli. "Mécanismes d'action de plantes riches en tanins sur les nématodes gastrointestinaux adultes des petits ruminants." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0085/document.

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Les nématodes gastro-intestinaux (NGI) représentent un problème sanitaire majeur dans le monde entier en systèmes de production à l’herbe des élevages de moutons et de chèvres. La maîtrise de ces parasites est désormais compliquée par l'apparition de résistances aux anthelminthiques (AH) chez les nématodes. L'utilisation de plantes riches en tanins (PRT) comme AH non conventionnels est une des alternatives possibles au contrôle chimique de ces maladies parasitaires. Cependant, le mécanisme d'action de ces plantes sur les vers adultes demeure inconnu. Cet objectif a constitué le premier but de

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23

Dynes, Robyn A. "Factors causing feed intake depression in lambs infected by gastrointestinal parasites." Lincoln University, 1993. http://hdl.handle.net/10182/2174.

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A reduction in voluntary feed intake is a major factor in the lost productivity of grazing lambs infected by gastrointestinal parasites yet the mechanisms involved are poorly understood. Potential pathways involved in parasite-induced feed intake depression were investigated in lambs with minimal previous exposure to parasites and artificially infected by the small intestinal parasite Trichostrongylus colubriformis. Six in vivo experiments were conducted on lambs housed in individual pens or metabolism crates with similar feeding and experimental procedures. In Experiment 1 (Chapter 4) the ef

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Quijada, Pinango Jessica. "Relation structure/activité de tanins bioactifs contre les Nématodes Gastrointestinaux (Haemonchus contortus) parasites des petits ruminants." Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/15130/1/quijada.pdf.

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Les nématodes gastrointestinaux (NGIs) représentent une contrainte majeure en élevage des ruminants. Jusqu’à présent, la maîtrise de ces parasitoses a reposé essentiellement sur l’emploi répété de traitements anthelminthiques (AH) de synthèse. Cependant, le développement constant de résistances aux AH dans les populations de nématodes chez les petits ruminants conduit à rechercher des méthodes alternatives ou complémentaires de lutte contre ces parasitoses. Au cours des deux dernières décennies, les données se sont accumulées montrant que certaines plantes étaient dotées de propriétés anthelmi

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25

Brunet, Séverine. "Analyse des mécanismes d'action antiparasitaire de plantes riches en substances polyphénoliques sur les nématodes du tube digestif des ruminants." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/339/.

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Chez les petits ruminants, la maîtrise actuelle du parasitisme par des nématodes gastro-intestinaux repose sur l'emploi d'anthelminthiques de synthèse. En raison du développement de résistances à ces molécules, l'utilisation de plantes riches en tannins condensés est désormais explorée comme solution alternative aux anthelminthiques, mais le mode d'action en reste mal connu. L'objectif de cette thèse était de définir les mécanismes d'action des tannins condensés sur les larves infestantes des trichostrongles digestifs. Nous avons d'abord confirmé que la consommation d'une plante riche en tanni

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Greer, Andrew W. "Estimates of the nutritional cost of the development of immunity to gastrointestinal parasites in sheep." Lincoln University, 2005. http://hdl.handle.net/10182/11.

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This thesis describes a series of three experiments designed to estimate the nutritional cost of the immune response to the gastrointestinal nematodes Trichostrongylus colubriformis and Teladorsagia circumcincta in sheep. For each experiment, animals were allocated hierarchically by liveweight into one of four groups that were either infected (group IF), similarly infected and concurrently immuno-suppressed with weekly intramuscular injections of 1.3mg kg liveweight (LW)⁻¹ of methylprednisolone acetate (group ISIF), immunosuppressed only (group IS) or remained as controls (group C). Body compo

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Iposu, Shamsideen Oladeinde. "Effect of suckling on response to nematode parasites in young lambs." Diss., Lincoln University, 2007. http://hdl.handle.net/10182/115.

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The series of experiments described in this thesis were designed to investigate the role of suckling or late weaning in the response of young lambs to nematode infection. All experiments were conducted outdoors with grazing animals and no supplementation but for suckled groups of lambs whose counterparts were weaned to ryegrass – white clover swards. The parasite of interest was mainly Teladorsagia circumcincta solely but with mixed infection of Trichostrongylus colubriformis in one instance. In Chapter 3 (first experiment), the hypothesis that milk per se may have a direct effect on nematode

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Kamaludeen, Juriah. "Studies on the occurrence of anthelmintic resistance in goat parasites in New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Veterinary Studies in Parasitology at Massey University, Palmerston North, New Zealand." 2010. http://hdl.handle.net/10179/1652.

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Two studies were conducted to investigate anthelmintic resistance in goat parasites in New Zealand. In Study 1 parasites from goats on a farm with a long history of problems with anthelmintic efficacy were used to infect sheep for a controlled slaughter study. Nineteen lambs were acquired, effectively drenched and housed. Each was infected with a mixture of larvae comprising Haemonchus contortus, Teladorsagia circumcincta, Trichostrongylus colubriformis and Oesophagostomum venulosum. After 28 days lambs were restrictively randomised into 3 groups based on faecal egg counts. Group 1 was left un

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