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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
27/03/2003 |
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Data da última atualização: |
11/09/2007 |
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Autoria: |
BIANCHIN, I.; ALVES, R. G. O. |
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Afiliação: |
Embrapa Gado de Corte (Campo Grand, MS). |
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Título: |
Mosca-dos-chifre, Haematobia irritans: comportamento e danos em vacas e bezerros Nelore antes da desmama. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 22, n. 3, p. 109-113, jul./set.. 2002. |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Conteúdo: |
The hornfly and losses caused by it in Nellore cows and pre-weaning calves where studied, using two groups of 60 animals each, one group with a natural infestation and the other without hornfly, during four consecutive years. It was seen that the number of flies on the cows did not exceed an average of 80 flies/animal in all years of observation. The majority of the cows (83%) had few flies, whereas 17% had larger numbers. The calves were infested with few flies. Rainfall in excess of 100 mm during short periods diminished fly infestation. Weight gain in the cows without flies (treated with insecticides) as well as their calves was greater than in the control cows, but not statistically significant (P>0.05). Mean percentage pregnancy during the four years was 15% more in treated cows than the non-treated animals, and this difference was probably due to the infestation of the bulls.
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Palavras-Chave: |
Bovino de corte; Control; Controle; Horn fly; Mosca-dos-chifres; Nelore. |
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Thesagro: |
Epidemiologia; Ganho de Peso; Haematobia Irritans. |
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Thesaurus Nal: |
beef cattle; epidemiology; Nellore; weight gain. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01738naa a2200301 a 4500
001 1323338
005 2007-09-11
008 2002 bl uuuu u00u1 u #d
100 1 $aBIANCHIN, I.
245 $aMosca-dos-chifre, Haematobia irritans$bcomportamento e danos em vacas e bezerros Nelore antes da desmama.
260 $c2002
500 $aCNPGC.
520 $aThe hornfly and losses caused by it in Nellore cows and pre-weaning calves where studied, using two groups of 60 animals each, one group with a natural infestation and the other without hornfly, during four consecutive years. It was seen that the number of flies on the cows did not exceed an average of 80 flies/animal in all years of observation. The majority of the cows (83%) had few flies, whereas 17% had larger numbers. The calves were infested with few flies. Rainfall in excess of 100 mm during short periods diminished fly infestation. Weight gain in the cows without flies (treated with insecticides) as well as their calves was greater than in the control cows, but not statistically significant (P>0.05). Mean percentage pregnancy during the four years was 15% more in treated cows than the non-treated animals, and this difference was probably due to the infestation of the bulls.
650 $abeef cattle
650 $aepidemiology
650 $aNellore
650 $aweight gain
650 $aEpidemiologia
650 $aGanho de Peso
650 $aHaematobia Irritans
653 $aBovino de corte
653 $aControl
653 $aControle
653 $aHorn fly
653 $aMosca-dos-chifres
653 $aNelore
700 1 $aALVES, R. G. O.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 22, n. 3, p. 109-113, jul./set.. 2002.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
18/06/1998 |
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Data da última atualização: |
28/03/2017 |
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Autoria: |
SILVEIRA, R. da; MAGNUSSON, W. E.; CAMPOS, Z. |
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Afiliação: |
INPA (Manaus, AM); EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS). |
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Título: |
Monitoring the distribution abundance and breeding areas of Caiman crocodilus crocodilus and Melanosuchus niger in the Anavilhanas Archipelago, Central Amazonia, Brazil. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Journal of Herpetology, v.31, n.4, p.514-520, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Caiman crocodilus crocodilus and Melanosuchus niger occur throughout of the Anavilhanas Archipelago, located in the lower Rio Negro, Central Amazonia. The observed densites of these species vary from 0 to 58 per km of shoreline and 8 per km of shoreline, respectively. Multiple regression analysis indicated that the temperature difference between the water and the air, and water depth affected the observed density of C. crocodilus during spotlight surveys in the Archipelago. Percentage illumination by the moon, cloud cover, frequency of occurrence of grass, and food availability did not significantly affect the observed density of C. crocodilus. Nine hatchling groups of M. niger that hatched in 1992 were found on islands near the north bank of the Rio Negro, and 15 of 20 hatchlings groups of C. crocodilus were found closer to the south bank, indicating a tendency for separation of nesting areas. Discriominant function analysis indicated that water depth and presence of grass were correlated with the occurrence of hatchling groups. Melanochus niger hatcgling groups occured in areas with deeper water and more grass than those of C. crocodilus. This study showed that surveying hatchling groups in the Anavilhanas Archipelago is more efficient than surveying for subadults and adults, which by itself can give false impressions about the suitability of areas for conservation of breeding populations of these species. |
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Palavras-Chave: |
Aanavilhas archipelago; Area de criacao; Breeding areas; Caiman crocodilus crocodilus; Central Amazonia; Crocodile; Distribuicao; Distribution; Monitorando; Reptile. |
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Thesagro: |
Jacaré; Réptil. |
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Thesaurus NAL: |
Brazil; Melanosuchus niger; monitoring. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02386naa a2200325 a 4500
001 1792683
005 2017-03-28
008 1997 bl --- 0-- u #d
100 1 $aSILVEIRA, R. da
245 $aMonitoring the distribution abundance and breeding areas of Caiman crocodilus crocodilus and Melanosuchus niger in the Anavilhanas Archipelago, Central Amazonia, Brazil.
260 $c1997
520 $aCaiman crocodilus crocodilus and Melanosuchus niger occur throughout of the Anavilhanas Archipelago, located in the lower Rio Negro, Central Amazonia. The observed densites of these species vary from 0 to 58 per km of shoreline and 8 per km of shoreline, respectively. Multiple regression analysis indicated that the temperature difference between the water and the air, and water depth affected the observed density of C. crocodilus during spotlight surveys in the Archipelago. Percentage illumination by the moon, cloud cover, frequency of occurrence of grass, and food availability did not significantly affect the observed density of C. crocodilus. Nine hatchling groups of M. niger that hatched in 1992 were found on islands near the north bank of the Rio Negro, and 15 of 20 hatchlings groups of C. crocodilus were found closer to the south bank, indicating a tendency for separation of nesting areas. Discriominant function analysis indicated that water depth and presence of grass were correlated with the occurrence of hatchling groups. Melanochus niger hatcgling groups occured in areas with deeper water and more grass than those of C. crocodilus. This study showed that surveying hatchling groups in the Anavilhanas Archipelago is more efficient than surveying for subadults and adults, which by itself can give false impressions about the suitability of areas for conservation of breeding populations of these species.
650 $aBrazil
650 $aMelanosuchus niger
650 $amonitoring
650 $aJacaré
650 $aRéptil
653 $aAanavilhas archipelago
653 $aArea de criacao
653 $aBreeding areas
653 $aCaiman crocodilus crocodilus
653 $aCentral Amazonia
653 $aCrocodile
653 $aDistribuicao
653 $aDistribution
653 $aMonitorando
653 $aReptile
700 1 $aMAGNUSSON, W. E.
700 1 $aCAMPOS, Z.
773 $tJournal of Herpetology$gv.31, n.4, p.514-520, 1997.
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Embrapa Pantanal (CPAP) |
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