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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 diffe... Mostrar Tudo
Thesaurus Nal:  Animal welfare; Heat stress; Silvopastoral systems.
Categoria do assunto:  L Ciência Animal e Produtos de Origem Animal
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Agrossilvipastoril (CPAMT)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CPAMT596 - 1UPCAP - DD
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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:  Mostrar Marc Completo
Registro original:  Embrapa Cerrados (CPAC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPAC33774 - 1UPCAP - PPS16472013.01647
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