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The relationship between IgA activity against 4th-stage larvae and density-dependent effects on the number of 4th-stage larvae ofTeladorsagia circumcinctain naturally infected sheep

Autor: Michael J. Stear, K. Bairden, Stephen Bishop, S. Mitchell, Giles T. Innocent, S. Strain

Publikováno v: Parasitology. 129:363-369

The number ofTeladorsagia circumcincta4th-stage larvae in naturally infected lambs from a single farm varied among lambs and among different years. Within each year the distribution of 4th-stage larvae among lambs was similar to that expected from a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c33fc6853d00535297a0c9f09da5569
https://doi.org/10.1017/s0031182004005736

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The influence of relative resistance and urea-supplementation on deliberate infection with Teladorsagia circumcincta during winter

Autor: Quintin McKellar, D.S. Wallace, M. Murray, J.L. Duncan, K. Bairden, Peter A. Graham, Michael J. Stear, Peter David Eckersall, J.J. Parkins, P.H. Holmes, G. Fishwick, S. Mitchell

Publikováno v: Veterinary Parasitology. 94:45-54

The consequences for lambs of infection over the winter with Teladorsagia circumcincta were quantified by deliberate, trickle infection of selected animals at 7 months of age. Infected and control uninfected animals were each allocated into four grou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f7a5e1b4cd2355e5be518836dc1dc71
https://doi.org/10.1016/s0304-4017(00)00370-8

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The influence of increased feeding on the susceptibility of sheep to infection with Haemonchus contortus

Autor: J.L. Duncan, S. Mitchell, D.S. Wallace, Michael J. Stear, M. Murray, G. Fishwick, P.H. Holmes, K. Bairden, Peter David Eckersall, J.J. Parkins, Quintin McKellar

Publikováno v: Animal Science. 69:457-463

Previous research has shown that supplementing the diet of growing lambs with urea enhances their ability to withstand gastrointestinal infection with the nematode Haemonchus contortus. This study compared lambs given two different amounts (χ 1 and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd0cbb5dd565d95649665316d9fbd475
https://doi.org/10.1017/s1357729800051031

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The relationship between the number and size of nematodes in the abomasum and the concentration of pepsinogen in ovine plasma

Autor: S. Strain, Stephen Bishop, Q.A. Mckeller, Michael J. Stear, Ian M. Scott, K. Bairden

Publikováno v: Research in Veterinary Science. 67:89-92

Six-month-old lambs that had been naturally infected with predominantlyTeladorsagia (Ostertagia) circumcinctawere tested for plasma pepsinogen concentrations because pepsinogen concentrations may reflect the extent of damage to the abomasum. The dist

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac0ae2aae3e9154fdc071cfe6293aa81
https://doi.org/10.1053/rvsc.1998.0301

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Heterogeneity in the recognition of Ostertagia circumcincta antigens by serum antibody from mature, infected sheep

Autor: J. Buitkamp, Collette Britton, L. McCririe, Michael J. Stear, K. Bairden, J.B. McKEAND

Publikováno v: Scopus-Elsevier

The recognition of parasite molecules from third-stage and adult Ostertagia circumcincta by serum antibody was studied in a group of matched, mature Scottish Blackface sheep that had been naturally and then deliberately infected. A total of 20 molecu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d759c1fcca8ed61d409272803aa0343a
https://doi.org/10.1046/j.1365-3024.1997.d01-202.x

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Genetic parameters for faecal egg count following mixed, natural, predominantly Ostertagia circumcincta infection and relationships with live weight in young lambs

Autor: Quintin McKellar, M. Park, K. Bairden, Michael J. Stear, Stephen Bishop

Publikováno v: Bishop, SC, Bairden, K, McKellar, QA, Park, M & Stear, MJ 1996, ' Genetic parameters for faecal egg count following mixed, natural, predominantly Ostertagia circumcincta infection and relationships with live weight in young lambs ', Animal science, vol. 63, pp. 423-428 .

Faecal egg counts and live weights were measured on approximately 200 predominantly twin-born Scottish Blackface lambs each year for 3 years, from 1 to 6 months of age. Measurements were made at 4-week intervals following anthelmintic treatment. Heri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e888f93a95edcf8ef59cb42dee3de0f1
https://doi.org/10.1017/s1357729800015319

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Influence of soyabean meal supplementation on the resistance of Scottish blackface lambs to haemonchosis

Autor: M. Murray, D.S. Wallace, J.L. Duncan, M. Gill, Michael J. Stear, Quintin McKellar, G. Fishwick, J.J. Parkins, P.H. Holmes, K. Bairden

Publikováno v: Research in Veterinary Science. 60:138-143

Protein supplementation improves the resistance of sheep to haemonchosis. This experiment investigated the Scottish blackface breed to establish whether dietary protein supplementation is still beneficial in a genetically resistant breed. Lambs were

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dee61c99f4a6ff5a433d6a94995968a9
https://doi.org/10.1016/s0034-5288(96)90008-9

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World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) second edition of guidelines for evaluating the efficacy of anthelmintics in ruminants (bovine, ovine, caprine)

Autor: JA Pankavich, K Bairden, RK Reinecke, John B. Malone, Jozef Vercruysse, O Slocombe, IB Wood, NK Amaral, JL Duncan, T. Kassai, SM Taylor

Publikováno v: Veterinary Parasitology. 58:181-213

The first edition of the W.A.A.V.P. anthelmintic guidelines for ruminants was published in 1982. Since then improved parasitological procedures have been developed, new therapeutic and prophylactic products have appeared requiring different test meth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7aea34e3257813bb3f4a9fa2edf933d
https://doi.org/10.1016/0304-4017(95)00806-2

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