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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
11/10/2002 |
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Data da última atualização: |
11/10/2002 |
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Autoria: |
TEMBELY, S.; LAHLOU-KASSI, A.; REGE, J. E. O.; MUKASA-MUGERWA, E.; ANINDO, D.; SOVANI, S.; BAKER, R. L. |
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Título: |
Breed and season effects on the peri-parturient rise in nematode egg output in indigenous ewes in a cool tropical environment. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 77, n. 2/3, p. 123-132, 1998. |
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Idioma: |
Inglês |
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Conteúdo: |
A study was carried out at the international Livestock Research lnstitute (ILRI) Debre Berhan Research Station in Ethiopia from 1992 to 1995 to compare the peri-parturient rise (PPR) in faecal nematode egg counts (FEC) in ewes of two indigenous sheep breeds. A total of 1439 Menz and 1347 Horro ewes were single sire mated following oestrus synchronization to lamb in the wet and dry season. Three ewe treatment groups were constituted as mated / lactating / undrenched; mated / lactating / drenched; unmated / undrenched for three wet and three dry lambing seasons. All ewes grazed naturally contaminated pasture. Levels of faecal egg output were monitored at mating, 3 months after mating, 2 weeks before lambing, 4, 8 and 12 weeks post-lambing. A significant PPR in FEC occurred 2 weeks before lambing and peaked at 4 weeks post-parturition in ewes lambing just before the beginning of the dry season (October/November). There was no significant increase in FEC when lambing occurred before the onset of the long rainy season (May / June). The PPR in this study was associated with both lactation and seasonal availability of third-stage infective larvae on pasture. There was no consistent breed difference in FEC during the six sampling periods from mating to weaning. Faecal cultures and worm counts from both breeds confirmed the presence of Longistrongylus (Pseudomarshallagia) elongata, Trichostrongylus spp. and Haemonchus contortus. The role of the peri-parturient rise of FEC in ewes in gastrointestinal nematode transmission is discussed. MenosA study was carried out at the international Livestock Research lnstitute (ILRI) Debre Berhan Research Station in Ethiopia from 1992 to 1995 to compare the peri-parturient rise (PPR) in faecal nematode egg counts (FEC) in ewes of two indigenous sheep breeds. A total of 1439 Menz and 1347 Horro ewes were single sire mated following oestrus synchronization to lamb in the wet and dry season. Three ewe treatment groups were constituted as mated / lactating / undrenched; mated / lactating / drenched; unmated / undrenched for three wet and three dry lambing seasons. All ewes grazed naturally contaminated pasture. Levels of faecal egg output were monitored at mating, 3 months after mating, 2 weeks before lambing, 4, 8 and 12 weeks post-lambing. A significant PPR in FEC occurred 2 weeks before lambing and peaked at 4 weeks post-parturition in ewes lambing just before the beginning of the dry season (October/November). There was no significant increase in FEC when lambing occurred before the onset of the long rainy season (May / June). The PPR in this study was associated with both lactation and seasonal availability of third-stage infective larvae on pasture. There was no consistent breed difference in FEC during the six sampling periods from mating to weaning. Faecal cultures and worm counts from both breeds confirmed the presence of Longistrongylus (Pseudomarshallagia) elongata, Trichostrongylus spp. and Haemonchus contortus. The role of the peri-parturient rise of FEC in ewes in ... Mostrar Tudo |
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Palavras-Chave: |
Nematódeo gastrintestinal; Variação estacional. |
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Thesagro: |
Ovino; Parasitologia; Resistência. |
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Thesaurus Nal: |
Trichostrongylidae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02335naa a2200265 a 4500
001 1528684
005 2002-10-11
008 1998 bl uuuu u00u1 u #d
100 1 $aTEMBELY, S.
245 $aBreed and season effects on the peri-parturient rise in nematode egg output in indigenous ewes in a cool tropical environment.
260 $c1998
520 $aA study was carried out at the international Livestock Research lnstitute (ILRI) Debre Berhan Research Station in Ethiopia from 1992 to 1995 to compare the peri-parturient rise (PPR) in faecal nematode egg counts (FEC) in ewes of two indigenous sheep breeds. A total of 1439 Menz and 1347 Horro ewes were single sire mated following oestrus synchronization to lamb in the wet and dry season. Three ewe treatment groups were constituted as mated / lactating / undrenched; mated / lactating / drenched; unmated / undrenched for three wet and three dry lambing seasons. All ewes grazed naturally contaminated pasture. Levels of faecal egg output were monitored at mating, 3 months after mating, 2 weeks before lambing, 4, 8 and 12 weeks post-lambing. A significant PPR in FEC occurred 2 weeks before lambing and peaked at 4 weeks post-parturition in ewes lambing just before the beginning of the dry season (October/November). There was no significant increase in FEC when lambing occurred before the onset of the long rainy season (May / June). The PPR in this study was associated with both lactation and seasonal availability of third-stage infective larvae on pasture. There was no consistent breed difference in FEC during the six sampling periods from mating to weaning. Faecal cultures and worm counts from both breeds confirmed the presence of Longistrongylus (Pseudomarshallagia) elongata, Trichostrongylus spp. and Haemonchus contortus. The role of the peri-parturient rise of FEC in ewes in gastrointestinal nematode transmission is discussed.
650 $aTrichostrongylidae
650 $aOvino
650 $aParasitologia
650 $aResistência
653 $aNematódeo gastrintestinal
653 $aVariação estacional
700 1 $aLAHLOU-KASSI, A.
700 1 $aREGE, J. E. O.
700 1 $aMUKASA-MUGERWA, E.
700 1 $aANINDO, D.
700 1 $aSOVANI, S.
700 1 $aBAKER, R. L.
773 $tVeterinary Parasitology$gv. 77, n. 2/3, p. 123-132, 1998.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | CORREIA, E.; KUNH, D.; BRUNE, S.; MOITA, A. W. Desempenho de clones de batata em solo sob vegetação de cerrado em São Vicente (MT). Horticultura Brasileira, Brasília, DF, v. 19, n. 2, jul. 2001. não paginado. CD-ROM. Suplemento. Trabalho apresentado no 41. Congresso Brasileiro de Olericultura, 2001.| Biblioteca(s): Embrapa Hortaliças. |
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