|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril. |
Data corrente: |
30/12/2016 |
Data da última atualização: |
04/10/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LOPES, L. B.; ECKSTEIN, C.; PINA, D. S.; MONTEI, R. A. C. |
Afiliação: |
LUCIANO BASTOS LOPES, CPAMT; CAMILA ECKSTEIN, UFMT-SINOP; DOUGLAS SANTOS PINA, UFMT-SINOP; ROBERTA APARECIDA CARNEVALLI MONTEI, CPAMT. |
Título: |
The influence of trees on the thermal environment and behaviour of grazing heifers in Brazilian Midwest. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Tropical Animal Health and Production, v. 48, n. 4, p. 755-761, 2016. |
Idioma: |
Inglês |
Conteúdo: |
The intensification of the livestock production system has gained prominence over the last decades. In addition to the reduction of grazing areas and increased productivity per hectare, the intercropping involving forest tree species and ruminants has been established as a sustainable production model, generating income and valuation of natural capital. Besides the social, economic, and environmental aspects, the animal welfare is a noteworthy factor. The objective of this study was to evaluate the microclimatic conditions in an open-pasture and in silvopastoral systems, considering the Temperature Humidity Index (THI) and alterations in animal behavior. Three different pasture arrangements were analyzed in this study: total absence of trees in an open-pasture (ArrA), presence of peripheral trees (Eucalyptus spp.) along the border fences (ArrB), and an intensive wooded area aggregated with pasture (ArrC). A herd of 24 crossbreed heifers (3/4 and 7/8 Holstein?Girolando breed) was evaluated. Behavior data were collected every 15 min starting at 08 h00 with readings ending at 16 h00. THI was used to evaluate the environmental comfort. The THI found in the system with open-pasture and in the two systems with silvopastoral arrangement reached critical levels. The two arrangements with eucalyptus rows were not capable of eliminating heat stress in the conditions found in the north region of Mato Grosso State although better conditions were obtained under the tree canopy. The differences between the microclimatic variables for the three arrangements modified the behavior of the animals regarding their location and activity, except for water consumption. MenosThe intensification of the livestock production system has gained prominence over the last decades. In addition to the reduction of grazing areas and increased productivity per hectare, the intercropping involving forest tree species and ruminants has been established as a sustainable production model, generating income and valuation of natural capital. Besides the social, economic, and environmental aspects, the animal welfare is a noteworthy factor. The objective of this study was to evaluate the microclimatic conditions in an open-pasture and in silvopastoral systems, considering the Temperature Humidity Index (THI) and alterations in animal behavior. Three different pasture arrangements were analyzed in this study: total absence of trees in an open-pasture (ArrA), presence of peripheral trees (Eucalyptus spp.) along the border fences (ArrB), and an intensive wooded area aggregated with pasture (ArrC). A herd of 24 crossbreed heifers (3/4 and 7/8 Holstein?Girolando breed) was evaluated. Behavior data were collected every 15 min starting at 08 h00 with readings ending at 16 h00. THI was used to evaluate the environmental comfort. The THI found in the system with open-pasture and in the two systems with silvopastoral arrangement reached critical levels. The two arrangements with eucalyptus rows were not capable of eliminating heat stress in the conditions found in the north region of Mato Grosso State although better conditions were obtained under the tree canopy. The diffe... Mostrar Tudo |
Thesaurus Nal: |
Animal welfare; Heat stress; Silvopastoral systems. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02280naa a2200193 a 4500 001 2059723 005 2020-10-04 008 2016 bl uuuu u00u1 u #d 100 1 $aLOPES, L. B. 245 $aThe influence of trees on the thermal environment and behaviour of grazing heifers in Brazilian Midwest.$h[electronic resource] 260 $c2016 520 $aThe intensification of the livestock production system has gained prominence over the last decades. In addition to the reduction of grazing areas and increased productivity per hectare, the intercropping involving forest tree species and ruminants has been established as a sustainable production model, generating income and valuation of natural capital. Besides the social, economic, and environmental aspects, the animal welfare is a noteworthy factor. The objective of this study was to evaluate the microclimatic conditions in an open-pasture and in silvopastoral systems, considering the Temperature Humidity Index (THI) and alterations in animal behavior. Three different pasture arrangements were analyzed in this study: total absence of trees in an open-pasture (ArrA), presence of peripheral trees (Eucalyptus spp.) along the border fences (ArrB), and an intensive wooded area aggregated with pasture (ArrC). A herd of 24 crossbreed heifers (3/4 and 7/8 Holstein?Girolando breed) was evaluated. Behavior data were collected every 15 min starting at 08 h00 with readings ending at 16 h00. THI was used to evaluate the environmental comfort. The THI found in the system with open-pasture and in the two systems with silvopastoral arrangement reached critical levels. The two arrangements with eucalyptus rows were not capable of eliminating heat stress in the conditions found in the north region of Mato Grosso State although better conditions were obtained under the tree canopy. The differences between the microclimatic variables for the three arrangements modified the behavior of the animals regarding their location and activity, except for water consumption. 650 $aAnimal welfare 650 $aHeat stress 650 $aSilvopastoral systems 700 1 $aECKSTEIN, C. 700 1 $aPINA, D. S. 700 1 $aMONTEI, R. A. C. 773 $tTropical Animal Health and Production$gv. 48, n. 4, p. 755-761, 2016.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
26/12/2013 |
Data da última atualização: |
26/12/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
MORAES, S. V. de P.; HUNT, T. E.; WRIGHT, R. J.; HEIN, G. L.; BLANKENSHIP, E. E. |
Afiliação: |
SILVANA VIEIRA DE PAULA MORAES, CPAC; UNIVERSITY OF NEBRASKA-LINCOLN; UNIVERSITY OF NEBRASKA-LINCOLN; UNIVERSITY OF NEBRASKA-LINCOLN; UNIVERSITY OF NEBRASKA-LINCOLN. |
Título: |
Western bean cutworm survival and the development of economic injury levels and economic thresholds in field corn. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Journal of Economic Entomology, College Park, v. 106, n. 3, p. 1274-1285, 2013. |
DOI: |
http://dx.doi.org/10.1603/EC12436 |
Idioma: |
Inglês |
Conteúdo: |
Western bean cutworm, Striacosta albicosta (Smith) (Lepidoptera: Noctuidae), is a native pest of dry beans (Phaseolus vulgaris L.) and corn (Zea mays L.). Historically, the western bean cutworm was distributed in the western United States, but since 1999 eastward expansion has been observed. In corn, economic impact is caused by larval ear feeding. Information on western bean cutworm biology, ecology, and economic impact is relatively limited, and the development of economic injury levels (EILs) and economic thresholds (ETs) is required for more effective management. Studies during 2008Ð2011, across three ecoregions of Nebraska, sought to characterize western bean cutworm survival and development of EILs and ETs. Calculations of EILs and ETs incorporated the dynamics of corn price, management cost, and pest survival. The results from the current study demonstrated low larval survival of this species (1.51Ð12.82%). The mean yield loss from one western bean cutworm larva per plant was 945.52 kg/ha (15.08 bu/acre), based on 74,100 plants per ha. Economic thresholds are expressed as a percentage of plants with at least one egg mass. This study is the Þrst study that explicitly incorporates variable management costs and crop values into western bean cutworm EIL calculations, and larval survival into ET calculations. |
Palavras-Chave: |
Bean; Nivel de dano ecônomico; Resistência larval; Striacosta albicosta; Western bean cutworm. |
Thesagro: |
Feijão; Lagarta; Lagarta rosca; Milho; Praga de planta. |
Thesaurus NAL: |
Biological resistance; Corn; Economic threshold; Larval development; Pests; Richia albicosta; United States. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/94467/1/33774.pdf
|
Marc: |
LEADER 02452naa a2200385 a 4500 001 1974639 005 2013-12-26 008 2013 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1603/EC12436$2DOI 100 1 $aMORAES, S. V. de P. 245 $aWestern bean cutworm survival and the development of economic injury levels and economic thresholds in field corn. 260 $c2013 520 $aWestern bean cutworm, Striacosta albicosta (Smith) (Lepidoptera: Noctuidae), is a native pest of dry beans (Phaseolus vulgaris L.) and corn (Zea mays L.). Historically, the western bean cutworm was distributed in the western United States, but since 1999 eastward expansion has been observed. In corn, economic impact is caused by larval ear feeding. Information on western bean cutworm biology, ecology, and economic impact is relatively limited, and the development of economic injury levels (EILs) and economic thresholds (ETs) is required for more effective management. Studies during 2008Ð2011, across three ecoregions of Nebraska, sought to characterize western bean cutworm survival and development of EILs and ETs. Calculations of EILs and ETs incorporated the dynamics of corn price, management cost, and pest survival. The results from the current study demonstrated low larval survival of this species (1.51Ð12.82%). The mean yield loss from one western bean cutworm larva per plant was 945.52 kg/ha (15.08 bu/acre), based on 74,100 plants per ha. Economic thresholds are expressed as a percentage of plants with at least one egg mass. This study is the Þrst study that explicitly incorporates variable management costs and crop values into western bean cutworm EIL calculations, and larval survival into ET calculations. 650 $aBiological resistance 650 $aCorn 650 $aEconomic threshold 650 $aLarval development 650 $aPests 650 $aRichia albicosta 650 $aUnited States 650 $aFeijão 650 $aLagarta 650 $aLagarta rosca 650 $aMilho 650 $aPraga de planta 653 $aBean 653 $aNivel de dano ecônomico 653 $aResistência larval 653 $aStriacosta albicosta 653 $aWestern bean cutworm 700 1 $aHUNT, T. E. 700 1 $aWRIGHT, R. J. 700 1 $aHEIN, G. L. 700 1 $aBLANKENSHIP, E. E. 773 $tJournal of Economic Entomology, College Park$gv. 106, n. 3, p. 1274-1285, 2013.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Cerrados (CPAC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|