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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
23/04/2024 |
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Data da última atualização: |
23/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FREITAS, M. L.; VIANA, J. H. M.; DODE, M. A. N.; BRAGA, T. R. C.; OLIVEIRA, R. A. de. |
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Afiliação: |
M. L. FREITAS, UNIVERSIDADE DE BRASÍLIA; JOAO HENRIQUE MOREIRA VIANA, CENARGEN; MARGOT ALVES NUNES DODE, CENARGEN; T. R. C. BRAGA, UNIVERSIDADE DE BRASÍLIA; R. A. DE OLIVEIRA, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Use of thermography in the long-term evaluation of scrotal surface temperature and its impact on seminal quality in stallions. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Reproduction in Domestic Animals, v. 59, e14556, 2024. |
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DOI: |
https://doi.org/10.1111/rda.14556 |
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Idioma: |
Inglês |
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Conteúdo: |
Scrotal surface thermography is a non-invasive method for assessing testicular thermoregulation in stallions; however, few studies have explored the application of this technique concerning the thermal physiology of equine reproductive systems. This study aimed to evaluate the consistency of testicular thermoregulation in stallions over a year using thermography to measure the scrotal surface temperature (SST). Moreover, we assessed the best region for measuring the surface body temperature compared with the SST. Ten light-breed stallions were used in the experiment. Thermographic images of the scrotal and body surfaces (neck and abdomen) were captured. Fresh, cooled and frozen–thawed semen samples were evaluated to verify the impact of thermoregulation on semen quality. Testicular thermoregulation was maintained throughout the year in stallions amidst changes in the external temperature, as evidenced by the weak correlation between the SST and ambient temperature. A lower correlation was observed between the environmental temperature and body surface temperature (BTS) obtained from the abdomen (BTS-A; R = .4772; p < .0001) than with that obtained from the neck (BTS-N; R = .7259; p < .0001). Moreover, both BTS-A and SST were simultaneously captured in a single image. The consistent quality of the fresh, cooled and frozen semen suggests efficient thermoregulation in stallions throughout the year. |
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Palavras-Chave: |
Infrared; Testicles; Thermal image. |
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Thesagro: |
Sêmen. |
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Thesaurus Nal: |
Scrotum; Thermoregulation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02214naa a2200253 a 4500
001 2163791
005 2024-04-23
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/rda.14556$2DOI
100 1 $aFREITAS, M. L.
245 $aUse of thermography in the long-term evaluation of scrotal surface temperature and its impact on seminal quality in stallions.$h[electronic resource]
260 $c2024
520 $aScrotal surface thermography is a non-invasive method for assessing testicular thermoregulation in stallions; however, few studies have explored the application of this technique concerning the thermal physiology of equine reproductive systems. This study aimed to evaluate the consistency of testicular thermoregulation in stallions over a year using thermography to measure the scrotal surface temperature (SST). Moreover, we assessed the best region for measuring the surface body temperature compared with the SST. Ten light-breed stallions were used in the experiment. Thermographic images of the scrotal and body surfaces (neck and abdomen) were captured. Fresh, cooled and frozen–thawed semen samples were evaluated to verify the impact of thermoregulation on semen quality. Testicular thermoregulation was maintained throughout the year in stallions amidst changes in the external temperature, as evidenced by the weak correlation between the SST and ambient temperature. A lower correlation was observed between the environmental temperature and body surface temperature (BTS) obtained from the abdomen (BTS-A; R = .4772; p < .0001) than with that obtained from the neck (BTS-N; R = .7259; p < .0001). Moreover, both BTS-A and SST were simultaneously captured in a single image. The consistent quality of the fresh, cooled and frozen semen suggests efficient thermoregulation in stallions throughout the year.
650 $aScrotum
650 $aThermoregulation
650 $aSêmen
653 $aInfrared
653 $aTesticles
653 $aThermal image
700 1 $aVIANA, J. H. M.
700 1 $aDODE, M. A. N.
700 1 $aBRAGA, T. R. C.
700 1 $aOLIVEIRA, R. A. de
773 $tReproduction in Domestic Animals$gv. 59, e14556, 2024.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
16/09/2008 |
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Data da última atualização: |
16/09/2008 |
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Autoria: |
DUBS, F.; DECAËNS, T.; HEDDE, M.; GEOFFROY, J. J.; BOUTH, M. le; GARNIER, A.; BOGUCKI, C.; LANGLOIS, E.; BUREAU, F.; MARGERIE, P.; AUBERT, M.; LAVELLE, P. |
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Título: |
Surrounding landscape effects on local community of soil macrofauna detritivore. |
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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: |
While habitat quality is known to influence species occurrence at a focal site, local diversity
within habitat patches also depends on the structure of the surrounding landscape and the
associated constraints on species dispersion. Thus, it is quite obvious that habitat constraints
are not enough to explain variability in local species composition between patches with different
land uses, and that we need to consider landscape context to improve the power of explanatory
environmental factors. In this study, we assessed the importance of ?neighbouring or matrix
effect? on the structure of soil fauna detritivore communities (diplopods, isopods and earthworms)
from a data set collected in 5 landscape 1 km2 windows replicated in 2 regions in France and
representing a gradient of 5 levels of landscape intensification. In each window, we identified 16
points regularly distributed 200m apart from each other as follow and, on each of them, was
sampled fauna with a combination of hand sorting and formaldehyde extraction on 3 replicates
of 25 ? 25 cm. Invertebrates were identified to species and counted. We used canonical
correspondence analysis and partial canonical ordination to assess the respective impact of
surrounding landscape vs. habitat constraints. Hypothetical driving factors were categorised as
follows: habitat quality by soil, habitat and management types and surrounding landscape by
composition and configuration of habitat around the sampling point.
We found that the surrounding landscape composition (proportion and diversity of different habitat
types) and configuration (shape and dispersion of habitats) had significant effects on the structure
of soil macrofauna detritivore communities with different local communities in 1) forested
surrounding landscape, 2) heterogeneous surrounding landscape, 3) grassland surrounding
landscape and 4) crop surrounding landscape. Habitat quality also dramatically influenced the
diversity and abundance of detritivore macroinvertebrates. Significant differences were found
between: 1) habitat with mowing, organic, permanent grassland, 2) habitat with changing land
uses, fertilised crops and grazing pastures, and 3) managed forest habitats. The variance
partitioning between the three sets of environmental variables showed that habitat quality factors
were the most influencing, followed by surrounding landscape composition and surrounding
landscape structure. MenosWhile habitat quality is known to influence species occurrence at a focal site, local diversity
within habitat patches also depends on the structure of the surrounding landscape and the
associated constraints on species dispersion. Thus, it is quite obvious that habitat constraints
are not enough to explain variability in local species composition between patches with different
land uses, and that we need to consider landscape context to improve the power of explanatory
environmental factors. In this study, we assessed the importance of ?neighbouring or matrix
effect? on the structure of soil fauna detritivore communities (diplopods, isopods and earthworms)
from a data set collected in 5 landscape 1 km2 windows replicated in 2 regions in France and
representing a gradient of 5 levels of landscape intensification. In each window, we identified 16
points regularly distributed 200m apart from each other as follow and, on each of them, was
sampled fauna with a combination of hand sorting and formaldehyde extraction on 3 replicates
of 25 ? 25 cm. Invertebrates were identified to species and counted. We used canonical
correspondence analysis and partial canonical ordination to assess the respective impact of
surrounding landscape vs. habitat constraints. Hypothetical driving factors were categorised as
follows: habitat quality by soil, habitat and management types and surrounding landscape by
composition and configuration of habitat around the sampling point.
We found that the sur... Mostrar Tudo |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03363naa a2200253 a 4500
001 1314829
005 2008-09-16
008 2008 bl uuuu u00u1 u #d
100 1 $aDUBS, F.
245 $aSurrounding landscape effects on local community of soil macrofauna detritivore.
260 $c2008
520 $aWhile habitat quality is known to influence species occurrence at a focal site, local diversity within habitat patches also depends on the structure of the surrounding landscape and the associated constraints on species dispersion. Thus, it is quite obvious that habitat constraints are not enough to explain variability in local species composition between patches with different land uses, and that we need to consider landscape context to improve the power of explanatory environmental factors. In this study, we assessed the importance of ?neighbouring or matrix effect? on the structure of soil fauna detritivore communities (diplopods, isopods and earthworms) from a data set collected in 5 landscape 1 km2 windows replicated in 2 regions in France and representing a gradient of 5 levels of landscape intensification. In each window, we identified 16 points regularly distributed 200m apart from each other as follow and, on each of them, was sampled fauna with a combination of hand sorting and formaldehyde extraction on 3 replicates of 25 ? 25 cm. Invertebrates were identified to species and counted. We used canonical correspondence analysis and partial canonical ordination to assess the respective impact of surrounding landscape vs. habitat constraints. Hypothetical driving factors were categorised as follows: habitat quality by soil, habitat and management types and surrounding landscape by composition and configuration of habitat around the sampling point. We found that the surrounding landscape composition (proportion and diversity of different habitat types) and configuration (shape and dispersion of habitats) had significant effects on the structure of soil macrofauna detritivore communities with different local communities in 1) forested surrounding landscape, 2) heterogeneous surrounding landscape, 3) grassland surrounding landscape and 4) crop surrounding landscape. Habitat quality also dramatically influenced the diversity and abundance of detritivore macroinvertebrates. Significant differences were found between: 1) habitat with mowing, organic, permanent grassland, 2) habitat with changing land uses, fertilised crops and grazing pastures, and 3) managed forest habitats. The variance partitioning between the three sets of environmental variables showed that habitat quality factors were the most influencing, followed by surrounding landscape composition and surrounding landscape structure.
700 1 $aDECAËNS, T.
700 1 $aHEDDE, M.
700 1 $aGEOFFROY, J. J.
700 1 $aBOUTH, M. le
700 1 $aGARNIER, A.
700 1 $aBOGUCKI, C.
700 1 $aLANGLOIS, E.
700 1 $aBUREAU, F.
700 1 $aMARGERIE, P.
700 1 $aAUBERT, M.
700 1 $aLAVELLE, P.
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.
Download
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