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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
11/04/2001 |
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Data da última atualização: |
17/08/2023 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
COSTA, C. A. F.; VIEIRA, L. da S.; BERNE, M. E. A.; SILVA, M. U. D.; GUIDONI, A. L.; FIGUEIREDO, E. A. P. |
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Afiliação: |
CNPSA; CNPC; Universidade Federal de Pelotas (UFPEL) - Pelotas, RS, Brazil; CPPSE; CNPC. |
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Título: |
Variability of resistance in goats infected with Haemonchus contortus in Brazil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 88, n. 1/2, p. 153-158, Feb. 2000. |
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DOI: |
https://doi.org/10.1016/S0304-4017(99)00207-1 |
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Idioma: |
Inglês |
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Notas: |
Short communication. |
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Conteúdo: |
Abstract: The variability between and within breeds with respect to nematode egg counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) was studied in 36 yearling female goats of the Caninde (15), Bhuj (6) and Anglo-Nubian (15) breeds, exposed to Haemonchus contortus. Nematode-free goats were turned to a contaminated paddock in late February. From then on, fecal egg per gram counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) were determined at 2-week intervals up toWeek 18. The EPG, transformed as [log(EPGC75)], varied (P<0.01) between goats within breeds and between weeks of exposure, but not between goat breeds (P > 0.05). PCV and Hb were affected by goat breeds (P<0.05), by goats within breeds (P<0.01) and by weeks of exposure (P<0.01). Anglo-Nubians had higher (P<0.01) PCV and Hb than Caninde; Bhuj had intermediate values. There were two EPG rises; one betweenWeeks 6 and 10 and the other betweenWeeks 14 and 16. The within breed variability was marked during the EPG rise on Week 6, when individual egg counts ranged from 130 to 2500. The EPG rises coincided with drops in Hb. PCV presented a similar trend, though not as marked. Haemonchus was responsible for more than 95% of nematode eggs counted. Considering the goat as experimental unit, the correlation coefficients (r) were: ?0.45, PD0.0064, between log(EPGC75) and PCV; and ?0.53, PD0.0009, between log(EPG C75) and Hb. The negative correlation between egg counts and blood values suggested breed differences in PCV and Hb were related to resistance to H. contortus infection and/or to its effects. MenosAbstract: The variability between and within breeds with respect to nematode egg counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) was studied in 36 yearling female goats of the Caninde (15), Bhuj (6) and Anglo-Nubian (15) breeds, exposed to Haemonchus contortus. Nematode-free goats were turned to a contaminated paddock in late February. From then on, fecal egg per gram counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) were determined at 2-week intervals up toWeek 18. The EPG, transformed as [log(EPGC75)], varied (P<0.01) between goats within breeds and between weeks of exposure, but not between goat breeds (P > 0.05). PCV and Hb were affected by goat breeds (P<0.05), by goats within breeds (P<0.01) and by weeks of exposure (P<0.01). Anglo-Nubians had higher (P<0.01) PCV and Hb than Caninde; Bhuj had intermediate values. There were two EPG rises; one betweenWeeks 6 and 10 and the other betweenWeeks 14 and 16. The within breed variability was marked during the EPG rise on Week 6, when individual egg counts ranged from 130 to 2500. The EPG rises coincided with drops in Hb. PCV presented a similar trend, though not as marked. Haemonchus was responsible for more than 95% of nematode eggs counted. Considering the goat as experimental unit, the correlation coefficients (r) were: ?0.45, PD0.0064, between log(EPGC75) and PCV; and ?0.53, PD0.0009, between log(EPG C75) and Hb. The negative correlation between egg counts and blood values suggested breed differences in... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Genetic predisposition to disease; Natural resistance; Nematódeo gastrintestinal; Resistance to anthelmintics; Resistência natural; Semiárido; Therapeutic use; Variabilidade. |
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Thesagro: |
Caprino; Haemonchus Contortus; Helminto gastrintestinal; Nematóide; Parasito de Animal; Parasitologia. |
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Thesaurus Nal: |
Brazil; Breeding; Feces; Gastrointestinal nematodes; Goat diseases; Goats; Immunology; Nematoda; Parasitology; Semiarid zones; Variability. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 03078naa a2200517 a 4500
001 1515378
005 2023-08-17
008 2000 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S0304-4017(99)00207-1$2DOI
100 1 $aCOSTA, C. A. F.
245 $aVariability of resistance in goats infected with Haemonchus contortus in Brazil.$h[electronic resource]
260 $c2000
500 $aShort communication.
520 $aAbstract: The variability between and within breeds with respect to nematode egg counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) was studied in 36 yearling female goats of the Caninde (15), Bhuj (6) and Anglo-Nubian (15) breeds, exposed to Haemonchus contortus. Nematode-free goats were turned to a contaminated paddock in late February. From then on, fecal egg per gram counts (EPG), packed cell volume (PCV) and hemoglobin (Hb) were determined at 2-week intervals up toWeek 18. The EPG, transformed as [log(EPGC75)], varied (P<0.01) between goats within breeds and between weeks of exposure, but not between goat breeds (P > 0.05). PCV and Hb were affected by goat breeds (P<0.05), by goats within breeds (P<0.01) and by weeks of exposure (P<0.01). Anglo-Nubians had higher (P<0.01) PCV and Hb than Caninde; Bhuj had intermediate values. There were two EPG rises; one betweenWeeks 6 and 10 and the other betweenWeeks 14 and 16. The within breed variability was marked during the EPG rise on Week 6, when individual egg counts ranged from 130 to 2500. The EPG rises coincided with drops in Hb. PCV presented a similar trend, though not as marked. Haemonchus was responsible for more than 95% of nematode eggs counted. Considering the goat as experimental unit, the correlation coefficients (r) were: ?0.45, PD0.0064, between log(EPGC75) and PCV; and ?0.53, PD0.0009, between log(EPG C75) and Hb. The negative correlation between egg counts and blood values suggested breed differences in PCV and Hb were related to resistance to H. contortus infection and/or to its effects.
650 $aBrazil
650 $aBreeding
650 $aFeces
650 $aGastrointestinal nematodes
650 $aGoat diseases
650 $aGoats
650 $aImmunology
650 $aNematoda
650 $aParasitology
650 $aSemiarid zones
650 $aVariability
650 $aCaprino
650 $aHaemonchus Contortus
650 $aHelminto gastrintestinal
650 $aNematóide
650 $aParasito de Animal
650 $aParasitologia
653 $aBrasil
653 $aGenetic predisposition to disease
653 $aNatural resistance
653 $aNematódeo gastrintestinal
653 $aResistance to anthelmintics
653 $aResistência natural
653 $aSemiárido
653 $aTherapeutic use
653 $aVariabilidade
700 1 $aVIEIRA, L. da S.
700 1 $aBERNE, M. E. A.
700 1 $aSILVA, M. U. D.
700 1 $aGUIDONI, A. L.
700 1 $aFIGUEIREDO, E. A. P.
773 $tVeterinary Parasitology$gv. 88, n. 1/2, p. 153-158, Feb. 2000.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 3 | |
| 1. |  | SILVA JUNIOR, E. C. da; LUNZ, A. M. P.; SALES, F. de; OLIVEIRA, L. C. de; NERY, C. M. B. Efeito de diferentes substratos e beneficiamento da semente na germinação de sementes e crescimento inicial de plântulas de açaí (Euterpe oleraceae Mart.). In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 8., 2011, Belém, PA. Sistemas agroflorestais na paisagem florestal: desafios científicos, tecnológicos e de políticas para integrar benefícios e globais: anais. Belém, PA : SBSAF : Embrapa Amazônia Oriental: UFRA : CEPLAC : EMATER : ICRAF, 2011. 5 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| 2. | | LUNZ, A. M. P.; SILVA JUNIOR, E. C. da; SALES, F. de; OLIVEIRA, L. C. de; NERY, C. M. B. Crescimento inicial de Uncaria tomentosa em função do nível de sombreamento. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 8., 2011, Belém, PA. Sistemas agroflorestais na paisagem florestal: desafios científicos, tecnológicos e de políticas para integrar benefícios e globais: anais. Belém, PA : SBSAF : Embrapa Amazônia Oriental: UFRA : CEPLAC : EMATER : ICRAF, 2011. 7 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| 3. | | MAIA, M. C. C.; LUNZ, A. M. P.; BERGO, C. L.; OLIVEIRA, M. do S. P. de; OLIVEIRA, L. C. de; NERY, C. M. B. Divergência genética entre indivíduos experimentais de açaizeiro (Euterpe oleraceae Mart.). In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: SBF, 2010. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Acre. |
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| Registros recuperados : 3 | |
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