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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
29/03/2023 |
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Autoria: |
WATSON, T. G. |
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Afiliação: |
Ruakura Animal Research Station, Ministry of Agriculture and Fisheries, Hamilton. |
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Título: |
Immunity to gastrointestinal nematode parasites in domestic stock with particular reference to sheep: A review. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Proceedings of the New Zealand Society of Animal Production, v. 46, p. 15-22, 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: One alternative to control of gastrointestinal nematode parasitism with anthelmintics may lie in genetic selection for resistance to infection and/or disease. Heritabilities for faecal egg count suggest that good selection responses can be achieved with Romney sires. Research must now identify markers that will accurately predict resistant and susceptible animals. To do this successfully, mechanisms associated with immune-competence, -tolerance and -expulsion and host resistance to these nematodes must be elucidated more fully. This review examines local and systemic humoral and cell-mediated immunities to some of the GI nematode parasites infecting sheep, goats and cattle, with emphasis to sheep. Additional literature is presented identifying some of the factors that may modify any responses; factors such as host nutrition, hormonal and reproductive status and genetics. The overwhelming conclusion must be that significant large voids exist in our understanding of the processes of immunity exerted by domestic stock to combat infection with nematode helminths. Furthermore much latitude has been taken describing and interpreting observations since many are postulated from studies involving laboratory host parasite models. |
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Palavras-Chave: |
Affector; Effector; Mechanisms; Nematodeo; Úbere. |
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Thesagro: |
Doença; Endocrinologia; Glândula; Imunologia; Ovino; Parasitologia; Resistência. |
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Thesaurus Nal: |
Animal parasites and pests; Cell-mediated immunity; Gastrointestinal nematodes; Humoral immunity; Immunity; Parasites; Sheep diseases. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02245naa a2200349 a 4500
001 1520197
005 2023-03-29
008 1986 bl uuuu u00u1 u #d
100 1 $aWATSON, T. G.
245 $aImmunity to gastrointestinal nematode parasites in domestic stock with particular reference to sheep$bA review.$h[electronic resource]
260 $c1986
520 $aAbstract: One alternative to control of gastrointestinal nematode parasitism with anthelmintics may lie in genetic selection for resistance to infection and/or disease. Heritabilities for faecal egg count suggest that good selection responses can be achieved with Romney sires. Research must now identify markers that will accurately predict resistant and susceptible animals. To do this successfully, mechanisms associated with immune-competence, -tolerance and -expulsion and host resistance to these nematodes must be elucidated more fully. This review examines local and systemic humoral and cell-mediated immunities to some of the GI nematode parasites infecting sheep, goats and cattle, with emphasis to sheep. Additional literature is presented identifying some of the factors that may modify any responses; factors such as host nutrition, hormonal and reproductive status and genetics. The overwhelming conclusion must be that significant large voids exist in our understanding of the processes of immunity exerted by domestic stock to combat infection with nematode helminths. Furthermore much latitude has been taken describing and interpreting observations since many are postulated from studies involving laboratory host parasite models.
650 $aAnimal parasites and pests
650 $aCell-mediated immunity
650 $aGastrointestinal nematodes
650 $aHumoral immunity
650 $aImmunity
650 $aParasites
650 $aSheep diseases
650 $aDoença
650 $aEndocrinologia
650 $aGlândula
650 $aImunologia
650 $aOvino
650 $aParasitologia
650 $aResistência
653 $aAffector
653 $aEffector
653 $aMechanisms
653 $aNematodeo
653 $aÚbere
773 $tProceedings of the New Zealand Society of Animal Production$gv. 46, p. 15-22, 1986.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
