Influence of dietary protein supply on resistance to experimental infections with Haemonchus contortus in Ile de France and Santa Ines lambs

Bricarello, Patrízia Ana; Amarante, Alessandro Francisco Talamini do; Rocha, Rosilene Fernandes da; Filho, Soares; Huntley, John F.; Houdijk, J.G.M.; Abdalla, Adibe Luiz; Gennari, Solange Maria

doi:10.1016/j.vetpar.2005.05.068

Cited by 96 publications

(72 citation statements)

References 22 publications

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“…The three sheep breeds showed similar cellular responses in the small intestine mucosa. Santa Ines and Ile de France lambs infected artificially with H. contortus had more inflammatory cells in the abomasal mucosa than uninfected control sheep (Bricarello et al 2005). However, as in the present experiment, Bricarello et al (2005) did not detect significant differences among the breeds.…”

Section: Discus Discus Discus Discus Discussion and Conclusion Sion contrasting

confidence: 62%

Relationship of intestinal histology with the resistance to Trichostrongylus colubriformis infection in three breeds of sheep

2007

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The study was carried out to evaluate the relationship of inflammatory intestinal cells with the resistance to Trichostrongylus colubriformis infections in three breeds of sheep (Santa Ines, Suffolk and Ile de France), naturally infected. Mast cells, eosinophils, and globule leucocytes were enumerated in intestinal mucosa. Histamine concentration was estimated in intestinal tissue samples and the length of male and female specimens were determined. The three breeds of sheep showed similar cellular response in the small intestine mucosa (P>0.05). There was extensive variation among sheep in the parasitological and inflammatory cell variables, even in lambs of the same breed. In general, animals presenting less inflammatory cells had a larger worm burden, higher fecal egg counts, and larger T. colubriformis worms. The inflammatory cells possibly impaired the parasite's establishment, development, and survival.

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Section: Discus Discus Discus Discus Discussion and Conclusion Sion contrasting

confidence: 62%

Relationship of intestinal histology with the resistance to Trichostrongylus colubriformis infection in three breeds of sheep

2007

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“…Se analisarmos bem os resultados, notamos uma grande tendência na redução dos ovos do controle negativo, bem próxima à dos tratamentos. Sem dúvida alguma podemos afirmar que esse acontecimento se deve ao fato das galinhas estarem em cativeiro, sendo bem cuidadas, com um espaço amplo por ave, alimentadas com ração, sem estresse, longe da presença de aves de vida livre e de outros animais, e seguindo todos os preceitos de higiene, o que são fatores essenciais para redução natural da infecção, acarretando em aumento na habilidade para enfrentar as consequências adversas do parasitismo, ou limitando o estabelecimento de larvas infectantes, o desenvolvimento e a fecundidade dos nematóides, causando até mesmo a eliminação dos parasitas já estabelecidos no aparelho digestivo (Fraser et al 1996, Coop & Kyriazakis 2001, Permin et al 2002, Bricarello et al 2005, Veríssimo 2008, Lima et al 2011. Também podemos observar o valor do controle positivo abaixo dos tratamentos naturais, o que demonstra uma maior eficácia da planta frente ao produto comercial (Oliveira 2003).…”

Section: Resultsunclassified

Eficácia de Chenopodium ambrosioides (erva-de-santa-maria) no controle de endoparasitos de Gallus gallus (galinha caipira)

et al. 2014

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Norte Fluminense Darcy Ribeiro, estado do Rio de Janeiro, no período de 2011 a 2012. O objetivo foi testar in vitro e in vivo a eficácia da planta medicinal Chenopodium ambrosioides Linnaeus, 1786 (erva-de-santa-maria), nas formas fitoterápica e homeopática, como meios alternativos para o controle de endoparasitos de Gallus gallus Linnaeus, 1758 (galinha caipira), um sério problema que afeta a criação e desempenho de aves domésticas, ocasionando morte quando muito intenso, retardo de crescimento, redução do ín-dice de conversão alimentar e aumento na suscetibilidade às doenças infecciosas. As metodologias utilizadas foram preconizadas por Coles et al. (1992) The aim was to test in vitro and in vivo the effectiveness of the medicinal plant Chenopodium ambrosioides Linnaeus, 1786 (santa maria herb) regarding phytotherapeutic and homeopathic alternative methods to control endoparasites of Gallus gallus Linnaeus, 1758 (free range chicken), a serious problem affecting domestic poultry performance causing losses, retarded development, decreased food conversion rate and increase of susceptibility to infectious diseases. In vitro essay demonstrated high reduction rate on eggs eclosion inhibition (97.18%), and in vivo essay showed high fecal eggs counting reduction rate (91.67%). Presence of the genera Ascaridia (35.00%), Capillaria (30.00%), Heterakis (25.00%) and Strongyloides (10.00%) was displayed by this survey. The plant C. ambrosioides showed upper rates front traditional products (Thiabendalol/Mebendazol) as well as to those ones advocated by the Brazilian Ministry of Agriculture and the World Health Organization as effective.INDEX TERMS: Chenopodium ambrosioides, santa maria herb, Gallus gallus, endoparasitosis.

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“…In a general manner, animals bred for their wool are less resistant to nematode infections than are breeds without wool (AMARANTE et al, 2004;BRICARELLO et al, 2005). However, regarding O. ovis larvae, this hypothesis does not seem to present any similar relationship (SILVA et al, 2012b).…”

Section: Discussionmentioning

confidence: 98%

Occurrences of Oestrus ovis parasitism in necropsied sheep in the Umuarama microregion, Paraná, Brazil

Carvalho

Ruivo

Colli

et al. 2015

Rev. Bras. Parasitol. Vet.

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Between January 2007 and September 2013, 71 sheep belonging to 12 farms in the Umuarama microregion, State of Paraná, were evaluated regarding presence of Oestrus ovis larvae, during necropsies. The farms from which these animals originated were visited and the owners and employees were interviewed. Occurrences of O. ovis parasitism in sheep were diagnosed for the first time on this microregion. Of the 71 animals, 12 (16.9%) were parasitized by O. ovis, with mean intensity of 2.25 larvae per infested head (1 to 8 larvae/infested head). There was a high correlation (0.81, p=0.0346) between the number of larvae and the macroscopic lesions observed in these animals' nasal cavities, such that sheep with more than 3 larvae may contain mucupurulent secretions or epistaxis. From the interviews conducted, it was found that all the farm owners were applying chemical parasite control methods (helminths and/or O. ovis), administered to all animals in the herds every 30 days (91.6% of the producers), using derivatives of macrocyclic lactones and/or benzimidazoles/imidazothiazoles. Further studies need to be conducted in this particular region, in an attempt to elucidate the prevalence of O. ovis parasitism in herds.Keywords: Cavitary myiasis, Oestrus ovis, sheep. ResumoDe janeiro de 2007 a setembro de 2013, foram avaliados, durante a necropsia, 71 ovinos pertencentes a 12 propriedades rurais da microrregião de Umuarama, Paraná, Brasil, quanto à presença de larvas de Oestrus ovis. Entre outubro e dezembro de 2013, as 12 propriedades de onde os animais eram provenientes foram visitadas, e os proprietários e funcionários foram entrevistados. A ocorrência do parasitismo por O. ovis em ovinos foi constatada pela primeira vez em propriedades rurais da microrregião de Umuarama, Estado do Paraná. Dos 71 animais, 12 (16,9%) estavam parasitados por O. ovis, com intensidade média de parasitismo de 2,25 larvas por cabeça infestada (1 a 8 larvas). Foi possível verificar correlação elevada (0,81, p=0,0346) apenas entre o número de larvas versus lesões macroscópicas observadas na cavidade nasal desses animais, de modo que ovinos com mais de 3 larvas continham secreção mucopurulenta ou epistaxe na cavidade. Quando da entrevista constatou-se que todos os proprietários fazem controle químico contra parasitas (helmintos e/ou O. ovis) e esse. controle é feito a cada 30 dias por 91,6% dos produtores, que utilizam derivados de lactonas macrocíclicas e/ou benzimidazóis/imidatiazóis. Futuros estudos ainda precisam ser realizados nesta região, na tentativa de elucidar a prevalência de parasitismo por O. ovis nos rebanhos.Palavras-chave: Miíase cavitária, Oestrus ovis, ovinos.

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Influence of dietary protein supply on resistance to experimental infections with Haemonchus contortus in Ile de France and Santa Ines lambs

Cited by 96 publications

References 22 publications

Relationship of intestinal histology with the resistance to Trichostrongylus colubriformis infection in three breeds of sheep

Relationship of intestinal histology with the resistance to Trichostrongylus colubriformis infection in three breeds of sheep

Eficácia de Chenopodium ambrosioides (erva-de-santa-maria) no controle de endoparasitos de Gallus gallus (galinha caipira)

Occurrences of Oestrus ovis parasitism in necropsied sheep in the Umuarama microregion, Paraná, Brazil

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