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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/09/2008 |
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Data da última atualização: |
23/09/2008 |
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Autoria: |
LAVELLE, P.; VELASQUEZ, E.; DUBS, F.; GOND, V.; CELINI, L.; MATHIEU, J.; ROULAND, C.; HARRY, M. |
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Título: |
Macrofaunal diversity and soil biogenic aggregation in deforested landscapes of French Guyana. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
In three landscape windows representing different uses of the Amazon forest, soil macrofauna
was sampled at 16 points displayed every 200m on a regular grid. At each of the 48 points we
measured macroinvertebrate abundance and species richness in 15 Orders and assessed soil
macro aggregation. Landscape composition and structure were quantified by analysing landscape
maps with the FRAGSTAT programme. Significant co inertia was observed among landscape
variables and species richness in groups. Ants and Coleoptera showed increased species
richness in deforested and highly fragmented areas whereas termites and most litter dwelling
arthropods (Myriapoda, Isopoda) exhibited opposite patterns. Another significant co inercia
was observed among macro invertebrate communities and soil aggregation. This suggests
that changes in landscape affect soil structure and functions associated to this attribute through
changes in macroinvertebrate communities. |
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Categoria do assunto: |
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Marc: |
LEADER 01774naa a2200205 a 4500
001 1314916
005 2008-09-23
008 2008 bl uuuu u00u1 u #d
100 1 $aLAVELLE, P.
245 $aMacrofaunal diversity and soil biogenic aggregation in deforested landscapes of French Guyana.
260 $c2008
520 $aIn three landscape windows representing different uses of the Amazon forest, soil macrofauna was sampled at 16 points displayed every 200m on a regular grid. At each of the 48 points we measured macroinvertebrate abundance and species richness in 15 Orders and assessed soil macro aggregation. Landscape composition and structure were quantified by analysing landscape maps with the FRAGSTAT programme. Significant co inertia was observed among landscape variables and species richness in groups. Ants and Coleoptera showed increased species richness in deforested and highly fragmented areas whereas termites and most litter dwelling arthropods (Myriapoda, Isopoda) exhibited opposite patterns. Another significant co inercia was observed among macro invertebrate communities and soil aggregation. This suggests that changes in landscape affect soil structure and functions associated to this attribute through changes in macroinvertebrate communities.
700 1 $aVELASQUEZ, E.
700 1 $aDUBS, F.
700 1 $aGOND, V.
700 1 $aCELINI, L.
700 1 $aMATHIEU, J.
700 1 $aROULAND, C.
700 1 $aHARRY, M.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
12/06/2023 |
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Data da última atualização: |
12/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SADIK, M. S.; HUBER, J. T.; KING, K.; WANDERLEY, R. D. C.; DEYOUNG, D.; AI-DEHNEH, A.; DUDAS, C. |
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Afiliação: |
M. S. SADIK, University of Guyana; J. T. HUBER, USDA Forage Lab.; K. KING, USDA Forage Lab.; RUY DA CARVALHEIRA WANDERLEY, CPPSE; D. DEYOUNG, University of Arizona; A. AI-DEHNEH, University of Arizona; C. DUDAS, University of Arizona. |
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Título: |
Comparison of nitrogen-15 and diaminopimelic acid for estimating bacterial protein synthesis of lactating cows fed diets of varying protein degradability. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 73, n. 3, p. 694-702, mar. 1990. |
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DOI: |
10.3168/jds.S0022-0302(90)78722-X |
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Idioma: |
Inglês |
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Conteúdo: |
Three lactating Holstein cows fitted with duodenal cannulae were fed diets containing cottonseed meal, corn gluten meal, or blood meal as protein supplements in a 3 c 3 Latin square experiment. Diets averaged 15% CP and were 60% concentrate, 31% corn silage, and 9% alfalfa hay. The flow marker was Cr2O3; the bacterial protein fraction of digesta CP was estimated by 15N (as ammonium sulfate) and diaminopimelic acid. The undegraded fraction of total feed protein entering the duodenum for respective diets was .52, .57, and .69. The 15N method was less variable than diaminopimelic acid. Based on 15N, percentage of bacterial of total protein differed among treatments (61.5, 59.4, and 55.0, respectively). Ten percent more protein entered the duodenum on blood meal than other diets, but differences were not significant. Protein sources were similar in microbial passage, but degraded protein was used most efficiently for microbial synthesis on blood meal. Incorporation of 15N consumed into bacterial protein ranged from 50 to 83% with numerically highest values on blood meal, suggesting greater efficiency of ammonia, capture. Recoveries of 15N for the 72 h as milk, feces and urine ranged from 54 to 78%. |
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Palavras-Chave: |
Bacterial protein; Diaminopimelic acid; Rotein degradability. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154377/1/ComparisonNitrogen-15.pdf
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Marc: |
LEADER 02010naa a2200241 a 4500
001 2154377
005 2023-06-12
008 1990 bl uuuu u00u1 u #d
024 7 $a10.3168/jds.S0022-0302(90)78722-X$2DOI
100 1 $aSADIK, M. S.
245 $aComparison of nitrogen-15 and diaminopimelic acid for estimating bacterial protein synthesis of lactating cows fed diets of varying protein degradability.$h[electronic resource]
260 $c1990
520 $aThree lactating Holstein cows fitted with duodenal cannulae were fed diets containing cottonseed meal, corn gluten meal, or blood meal as protein supplements in a 3 c 3 Latin square experiment. Diets averaged 15% CP and were 60% concentrate, 31% corn silage, and 9% alfalfa hay. The flow marker was Cr2O3; the bacterial protein fraction of digesta CP was estimated by 15N (as ammonium sulfate) and diaminopimelic acid. The undegraded fraction of total feed protein entering the duodenum for respective diets was .52, .57, and .69. The 15N method was less variable than diaminopimelic acid. Based on 15N, percentage of bacterial of total protein differed among treatments (61.5, 59.4, and 55.0, respectively). Ten percent more protein entered the duodenum on blood meal than other diets, but differences were not significant. Protein sources were similar in microbial passage, but degraded protein was used most efficiently for microbial synthesis on blood meal. Incorporation of 15N consumed into bacterial protein ranged from 50 to 83% with numerically highest values on blood meal, suggesting greater efficiency of ammonia, capture. Recoveries of 15N for the 72 h as milk, feces and urine ranged from 54 to 78%.
653 $aBacterial protein
653 $aDiaminopimelic acid
653 $aRotein degradability
700 1 $aHUBER, J. T.
700 1 $aKING, K.
700 1 $aWANDERLEY, R. D. C.
700 1 $aDEYOUNG, D.
700 1 $aAI-DEHNEH, A.
700 1 $aDUDAS, C.
773 $tJournal of Dairy Science$gv. 73, n. 3, p. 694-702, mar. 1990.
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Embrapa Pecuária Sudeste (CPPSE) |
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