| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Territorial. |
|
Data corrente: |
15/09/2014 |
|
Data da última atualização: |
15/09/2014 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LU, D.; LI, G.; VALLADARES, G. S.; BATISTELLA, M. |
|
Afiliação: |
DENGSHENG LU, INDIANA UNIVERSITY; G. LI, INDIANA STATE UNIVERSITY; GUSTAVO S. VALLADARES, CNPM; MATEUS BATISTELLA, CNPM. |
|
Título: |
Mapping soil erosion risk in Rondônia, Brazilian Amazonia: using rusle, remote sensing and GIS. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
Land Degradation & Development, v. 15, p. 499-512, 2004. |
|
DOI: |
10.1002/ldr.634 |
|
Idioma: |
Português |
|
Conteúdo: |
This article discusses research in which the authors applied the Revised Universal Soil Loss Equation (RUSLE), remote sensing, and geographical information system (GIS) to the maping of soil erosion risk in Brazilian Amazonia. Soil map and soil survey data were used to develop the soil erodibility factor (K), and a digital elevation model image was used to generate the topographic factor (LS). The cover-management factor (C) was developed based on vegetation, shade, and soil fraction images derived from spectral mixture analysis of a Landsat Enhanced Thematic Mapper Plus image. Assuming the same climatic conditions and no support practice in the study area, the rainfall?runoff erosivity (R) and the support practice (P) factors were not used. The majority of the study area has K values of less than 0.2, LS values of less than 2.5, and C values of less than 0.25. A soil erosion risk map with five classes (very low, low, medium, medium-high, and high) was produced based on the simplified RUSLE within the GIS environment, and was linked to land use and land cover (LULC) image to explore relationships between soil erosion risk and LULC distribution. The results indicate that most successional and mature forests are in very low and low erosion risk areas, while agroforestry and pasture are usually associated with medium to high risk areas. This research implies that remote sensing and GIS provide promising tools for evaluating and mapping soil erosion risk in Amazonia. |
|
Palavras-Chave: |
Brazilian Amazonia; GIS; RUSLE; Soil erosion risk. |
|
Thesaurus Nal: |
Remote sensing. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/108416/1/4024.pdf
|
|
Marc: |
LEADER 02146naa a2200229 a 4500
001 1994981
005 2014-09-15
008 2004 bl uuuu u00u1 u #d
024 7 $a10.1002/ldr.634$2DOI
100 1 $aLU, D.
245 $aMapping soil erosion risk in Rondônia, Brazilian Amazonia$busing rusle, remote sensing and GIS.$h[electronic resource]
260 $c2004
520 $aThis article discusses research in which the authors applied the Revised Universal Soil Loss Equation (RUSLE), remote sensing, and geographical information system (GIS) to the maping of soil erosion risk in Brazilian Amazonia. Soil map and soil survey data were used to develop the soil erodibility factor (K), and a digital elevation model image was used to generate the topographic factor (LS). The cover-management factor (C) was developed based on vegetation, shade, and soil fraction images derived from spectral mixture analysis of a Landsat Enhanced Thematic Mapper Plus image. Assuming the same climatic conditions and no support practice in the study area, the rainfall?runoff erosivity (R) and the support practice (P) factors were not used. The majority of the study area has K values of less than 0.2, LS values of less than 2.5, and C values of less than 0.25. A soil erosion risk map with five classes (very low, low, medium, medium-high, and high) was produced based on the simplified RUSLE within the GIS environment, and was linked to land use and land cover (LULC) image to explore relationships between soil erosion risk and LULC distribution. The results indicate that most successional and mature forests are in very low and low erosion risk areas, while agroforestry and pasture are usually associated with medium to high risk areas. This research implies that remote sensing and GIS provide promising tools for evaluating and mapping soil erosion risk in Amazonia.
650 $aRemote sensing
653 $aBrazilian Amazonia
653 $aGIS
653 $aRUSLE
653 $aSoil erosion risk
700 1 $aLI, G.
700 1 $aVALLADARES, G. S.
700 1 $aBATISTELLA, M.
773 $tLand Degradation & Development$gv. 15, p. 499-512, 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Territorial (CNPM) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Suínos e Aves. |
|
Data corrente: |
18/11/2020 |
|
Data da última atualização: |
18/11/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
DALLA COSTA, F. A.; GIBSON, T. J.; OLIVEIRA, S. E. O.; GREGORY, N. G.; COLDEBELLA, A.; FAUCITANO, L.; LUDTKE, C. B.; BUSS, L. P.; DALLA COSTA, O. A. |
|
Afiliação: |
FILIPE ANTÔNIO DALLA COSTA, UNESP; TROY J. GIBSON, Royal Veterinary College; STEFFAN EDWARD OCTÁVIO OLIVEIRA, Maneja bem-estar animal; NEVILLE GEORGE GREGORY, Royal Veterinary College; ARLEI COLDEBELLA, CNPSA; LUIGI FAUCITANO, Agriculture and Agri-Food Canada; CHARLI BEATRIZ LUDTKE, ABCS; LIZIÈ PERÉIRÂ BUSS, MAPA; OSMAR ANTONIO DALLA COSTA, CNPSA. |
|
Título: |
Evaluation of physical euthanasia for neonatal piglets on-farm. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Journal of Animal Science, v. 98, n. 7, 2020. |
|
DOI: |
https://doi.org/10.1093/jas/skaa204 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: Twenty-seven neonate piglets (range from 0.35 to 1.17 kg) were evaluated for the effectiveness of blunt force trauma as a method of on-farm cull. Brainstem function, brain injury and haemorrhage scores (increasing from 0 to 3) were assessed after striking the head against a concrete floor. Electroencephalograms (EEG) from a subset of 15 piglets were recorded prior to and after blunt force trauma for electrophysiological assessments. Blunt force trauma was performed by a single experienced farmer in a commercial farm by holding the piglet by its both hind legs and striking the head against the concrete floor. All piglets remained recumbent and did not show brainstem reflexes. Only one piglet did not presented tonic/clonic physical activity. The mean time to onset of persistent isoelectric EEG was 64.3 ± 7.3 (range 18 ? 115) s. Total power, theta, alpha and beta power decreased to approximately 45%, 30%, 20% and 15% from pre-treatment power, respectively by 15 s post-impact. There were no periods of normal-like EEG after the culling. Bruises in the neck and shoulder were found in 67% and 70% of piglets, respectively. All piglets presented skull fractures with 20% having the nasal bone(s) fractured. Brain damage was found in all piglets, mainly in the frontal lobe(s). The occipital lobe(s) presented the greatest frequency of severe damage. The analysis of the radiographs also found a high frequency of fractures in this region. Haemorrhage was most frequent in the frontal, parietal, occipital lobes and midbrain. When performed correctly with the appropriate weight class, blunt force trauma can be used as an effective method for on-farm killing of nursing piglets resulting in death. However, this method should not be promoted over more reliable and repeatable cull methods such as captive bolt gun (CBG). As with blunt force trauma there is significant potential for animal welfare harm associated with inappropriate practice, lack of accuracy, issues with repeatability and operator fatigue. MenosAbstract: Twenty-seven neonate piglets (range from 0.35 to 1.17 kg) were evaluated for the effectiveness of blunt force trauma as a method of on-farm cull. Brainstem function, brain injury and haemorrhage scores (increasing from 0 to 3) were assessed after striking the head against a concrete floor. Electroencephalograms (EEG) from a subset of 15 piglets were recorded prior to and after blunt force trauma for electrophysiological assessments. Blunt force trauma was performed by a single experienced farmer in a commercial farm by holding the piglet by its both hind legs and striking the head against the concrete floor. All piglets remained recumbent and did not show brainstem reflexes. Only one piglet did not presented tonic/clonic physical activity. The mean time to onset of persistent isoelectric EEG was 64.3 ± 7.3 (range 18 ? 115) s. Total power, theta, alpha and beta power decreased to approximately 45%, 30%, 20% and 15% from pre-treatment power, respectively by 15 s post-impact. There were no periods of normal-like EEG after the culling. Bruises in the neck and shoulder were found in 67% and 70% of piglets, respectively. All piglets presented skull fractures with 20% having the nasal bone(s) fractured. Brain damage was found in all piglets, mainly in the frontal lobe(s). The occipital lobe(s) presented the greatest frequency of severe damage. The analysis of the radiographs also found a high frequency of fractures in this region. Haemorrhage was most frequent in the fron... Mostrar Tudo |
|
Palavras-Chave: |
Bem-estar animal; Brain injury; EEG; Electroencephalogram; Eletroencefalograma; Eutanásia; Killing; Lesão cerebral; Matança. |
|
Thesagro: |
Abate; Leitão. |
|
Thesaurus NAL: |
Animal welfare; Culling (animals); Piglets. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03093naa a2200397 a 4500
001 2126745
005 2020-11-18
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1093/jas/skaa204$2DOI
100 1 $aDALLA COSTA, F. A.
245 $aEvaluation of physical euthanasia for neonatal piglets on-farm.$h[electronic resource]
260 $c2020
520 $aAbstract: Twenty-seven neonate piglets (range from 0.35 to 1.17 kg) were evaluated for the effectiveness of blunt force trauma as a method of on-farm cull. Brainstem function, brain injury and haemorrhage scores (increasing from 0 to 3) were assessed after striking the head against a concrete floor. Electroencephalograms (EEG) from a subset of 15 piglets were recorded prior to and after blunt force trauma for electrophysiological assessments. Blunt force trauma was performed by a single experienced farmer in a commercial farm by holding the piglet by its both hind legs and striking the head against the concrete floor. All piglets remained recumbent and did not show brainstem reflexes. Only one piglet did not presented tonic/clonic physical activity. The mean time to onset of persistent isoelectric EEG was 64.3 ± 7.3 (range 18 ? 115) s. Total power, theta, alpha and beta power decreased to approximately 45%, 30%, 20% and 15% from pre-treatment power, respectively by 15 s post-impact. There were no periods of normal-like EEG after the culling. Bruises in the neck and shoulder were found in 67% and 70% of piglets, respectively. All piglets presented skull fractures with 20% having the nasal bone(s) fractured. Brain damage was found in all piglets, mainly in the frontal lobe(s). The occipital lobe(s) presented the greatest frequency of severe damage. The analysis of the radiographs also found a high frequency of fractures in this region. Haemorrhage was most frequent in the frontal, parietal, occipital lobes and midbrain. When performed correctly with the appropriate weight class, blunt force trauma can be used as an effective method for on-farm killing of nursing piglets resulting in death. However, this method should not be promoted over more reliable and repeatable cull methods such as captive bolt gun (CBG). As with blunt force trauma there is significant potential for animal welfare harm associated with inappropriate practice, lack of accuracy, issues with repeatability and operator fatigue.
650 $aAnimal welfare
650 $aCulling (animals)
650 $aPiglets
650 $aAbate
650 $aLeitão
653 $aBem-estar animal
653 $aBrain injury
653 $aEEG
653 $aElectroencephalogram
653 $aEletroencefalograma
653 $aEutanásia
653 $aKilling
653 $aLesão cerebral
653 $aMatança
700 1 $aGIBSON, T. J.
700 1 $aOLIVEIRA, S. E. O.
700 1 $aGREGORY, N. G.
700 1 $aCOLDEBELLA, A.
700 1 $aFAUCITANO, L.
700 1 $aLUDTKE, C. B.
700 1 $aBUSS, L. P.
700 1 $aDALLA COSTA, O. A.
773 $tJournal of Animal Science$gv. 98, n. 7, 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Suínos e Aves (CNPSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
