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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
11/12/2020 |
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Data da última atualização: |
29/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTINS, C. F.; FONSECA NETO, A. M. da; BESSLER, H. C.; DODE, M. A. N.; LEME, L. O.; FRANCO, M. M.; McMANUS, C. M.; MALAQUIAS, J. V.; FERREIRA, I. C. |
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Afiliação: |
CARLOS FREDERICO MARTINS, CPAC; ALVARO MORAES DA FONSECA NETO, CPAC; MARGOT ALVES NUNES DODE, Cenargen; MAURICIO MACHAIM FRANCO, Cenargen; JUACI VITORIA MALAQUIAS, CPAC; ISABEL CRISTINA FERREIRA, CPAC. |
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Título: |
Natural shade from integrated crop livestock forestry mitigates environmental heat and increases the quantity and quality of oocytes and embryos produced in vitro by Gyr dairy cows. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Livestock Science, 2020. |
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ISSN: |
1871-1413 |
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Idioma: |
Português |
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Conteúdo: |
This study aimed to evaluate the effect of natural shade from integrated crop?livestock?forestry (CLF) on the comfort of lactating Gyr cows, as well as their oocyte and embryo quantity and quality. Twenty animals were separated into two experimental groups: grazing under full sun (control) and under natural shade provided by the CLF system. Meteorological variables and bioclimatic indicators, rectal and animal surface temperatures, milk quantity and quality, follicle number, oocyte quantity and quality, and in vitro embryo quantity and quality were measured. Data were collected in the rainy season (from November until April) and compared with data obtained in the dry season (from May until October). During the dry season, the natural shade from CLF maintained the dry-bulb temperature at 6.9◦C, 5.9◦C, and 4.3◦C lower than that in the full sun in August, September, and October, respectively. The environment with tree shade presented a black globe-humidity index (BGHI) 3%?7% lower than that in the full sun environment. In the dry season, the most challenging period for animals, the microenvironment produced by the shade of trees reduced the surface temperatures of the udder, rump, and area around the eye of cows by 1.0◦C?1.8◦C compared to those of animals in the full sun area. Rectal temperature and milk production were not influenced by treatment. However, the higher thermal comfort influenced the reproduction of cows; they presented a higher number of ovarian follicles (37.05 ± 3.40 vs. 31.73 ± 3.86), higher number of total oocytes (11.41 ± 4.69 vs. 6.5 ± 2.60), and more viable oocytes (6.27 ± 3.36 vs. 3.45 ± 1.38) per animal than cows directly exposed to the sun during the dry season. Gyr cows maintained under shade presented more transferable embryos per cow than did those in the CLF environment. CLF systems are a technological alternative to provide improved microclimate within grasslands and thermal comfort to dairy cows, including zebu cows. MenosThis study aimed to evaluate the effect of natural shade from integrated crop?livestock?forestry (CLF) on the comfort of lactating Gyr cows, as well as their oocyte and embryo quantity and quality. Twenty animals were separated into two experimental groups: grazing under full sun (control) and under natural shade provided by the CLF system. Meteorological variables and bioclimatic indicators, rectal and animal surface temperatures, milk quantity and quality, follicle number, oocyte quantity and quality, and in vitro embryo quantity and quality were measured. Data were collected in the rainy season (from November until April) and compared with data obtained in the dry season (from May until October). During the dry season, the natural shade from CLF maintained the dry-bulb temperature at 6.9◦C, 5.9◦C, and 4.3◦C lower than that in the full sun in August, September, and October, respectively. The environment with tree shade presented a black globe-humidity index (BGHI) 3%?7% lower than that in the full sun environment. In the dry season, the most challenging period for animals, the microenvironment produced by the shade of trees reduced the surface temperatures of the udder, rump, and area around the eye of cows by 1.0◦C?1.8◦C compared to those of animals in the full sun area. Rectal temperature and milk production were not influenced by treatment. However, the higher thermal comfort influenced the reproduction of cows; they presented a higher numb... Mostrar Tudo |
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Palavras-Chave: |
Conforto animal; Conforto térmico; Sombra. |
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Thesagro: |
Gado Gir; Gado Leiteiro; Reprodução Animal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02929naa a2200301 a 4500
001 2128000
005 2021-11-29
008 2020 bl uuuu u00u1 u #d
022 $a1871-1413
100 1 $aMARTINS, C. F.
245 $aNatural shade from integrated crop livestock forestry mitigates environmental heat and increases the quantity and quality of oocytes and embryos produced in vitro by Gyr dairy cows.$h[electronic resource]
260 $c2020
520 $aThis study aimed to evaluate the effect of natural shade from integrated crop?livestock?forestry (CLF) on the comfort of lactating Gyr cows, as well as their oocyte and embryo quantity and quality. Twenty animals were separated into two experimental groups: grazing under full sun (control) and under natural shade provided by the CLF system. Meteorological variables and bioclimatic indicators, rectal and animal surface temperatures, milk quantity and quality, follicle number, oocyte quantity and quality, and in vitro embryo quantity and quality were measured. Data were collected in the rainy season (from November until April) and compared with data obtained in the dry season (from May until October). During the dry season, the natural shade from CLF maintained the dry-bulb temperature at 6.9◦C, 5.9◦C, and 4.3◦C lower than that in the full sun in August, September, and October, respectively. The environment with tree shade presented a black globe-humidity index (BGHI) 3%?7% lower than that in the full sun environment. In the dry season, the most challenging period for animals, the microenvironment produced by the shade of trees reduced the surface temperatures of the udder, rump, and area around the eye of cows by 1.0◦C?1.8◦C compared to those of animals in the full sun area. Rectal temperature and milk production were not influenced by treatment. However, the higher thermal comfort influenced the reproduction of cows; they presented a higher number of ovarian follicles (37.05 ± 3.40 vs. 31.73 ± 3.86), higher number of total oocytes (11.41 ± 4.69 vs. 6.5 ± 2.60), and more viable oocytes (6.27 ± 3.36 vs. 3.45 ± 1.38) per animal than cows directly exposed to the sun during the dry season. Gyr cows maintained under shade presented more transferable embryos per cow than did those in the CLF environment. CLF systems are a technological alternative to provide improved microclimate within grasslands and thermal comfort to dairy cows, including zebu cows.
650 $aGado Gir
650 $aGado Leiteiro
650 $aReprodução Animal
653 $aConforto animal
653 $aConforto térmico
653 $aSombra
700 1 $aFONSECA NETO, A. M. da
700 1 $aBESSLER, H. C.
700 1 $aDODE, M. A. N.
700 1 $aLEME, L. O.
700 1 $aFRANCO, M. M.
700 1 $aMcMANUS, C. M.
700 1 $aMALAQUIAS, J. V.
700 1 $aFERREIRA, I. C.
773 $tLivestock Science, 2020.
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Embrapa Cerrados (CPAC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/04/2021 |
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Data da última atualização: |
22/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
NEGRINI, M.; FIDELIS, E. G.; PICANÇO, M. C.; RAMOS, R. S. |
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Afiliação: |
ELISANGELA GOMES FIDELIS, CPAC. |
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Título: |
Mapping of the Steneotarsonemus spinki invasion risk in suitable areas for rice (Oryza sativa) cultivation using Maxent. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Experimental and Applied Acarology, v. 80, 2020. |
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Páginas: |
p. 445?461 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice is one of the most important socioeconomic crops in the world. The tarsonemid mite Steneotarsonemus spinki is one of the most destructive pests for this crop and is restricted to some regions of Asia and America. The aim of this work was to map the risk of S. spinki invasion in rice-growing areas in the world. Presence data of Oryza sativa and S. spinki obtained from the literature and bioclimatic parameters from WorldClim were analyzed in the MaxEnt program to generate suitability indices and distribution maps for each species and for the two species together. High annual mean temperature associated with low temperature annual range were the most important environmental variables for the occurrence of O. sativa and S. spinki, and low rainfall favoring S. spinki. The model indicates that there are climatic conditions for the establishment of S. spinki in important rice-producing regions, such as western and central Africa, Oceania, Asia, and North, Central, and South America. Our results are useful for the efficient establishment of phytosanitary measures to prevent the dispersal of S. spinki to new rice-producing areas. |
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Thesagro: |
Ácaro; Acarologia; Arroz; Praga de Planta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01779naa a2200217 a 4500
001 2131135
005 2021-04-22
008 2020 bl uuuu u00u1 u #d
100 1 $aNEGRINI, M.
245 $aMapping of the Steneotarsonemus spinki invasion risk in suitable areas for rice (Oryza sativa) cultivation using Maxent.$h[electronic resource]
260 $c2020
300 $ap. 445?461
520 $aRice is one of the most important socioeconomic crops in the world. The tarsonemid mite Steneotarsonemus spinki is one of the most destructive pests for this crop and is restricted to some regions of Asia and America. The aim of this work was to map the risk of S. spinki invasion in rice-growing areas in the world. Presence data of Oryza sativa and S. spinki obtained from the literature and bioclimatic parameters from WorldClim were analyzed in the MaxEnt program to generate suitability indices and distribution maps for each species and for the two species together. High annual mean temperature associated with low temperature annual range were the most important environmental variables for the occurrence of O. sativa and S. spinki, and low rainfall favoring S. spinki. The model indicates that there are climatic conditions for the establishment of S. spinki in important rice-producing regions, such as western and central Africa, Oceania, Asia, and North, Central, and South America. Our results are useful for the efficient establishment of phytosanitary measures to prevent the dispersal of S. spinki to new rice-producing areas.
650 $aÁcaro
650 $aAcarologia
650 $aArroz
650 $aPraga de Planta
700 1 $aFIDELIS, E. G.
700 1 $aPICANÇO, M. C.
700 1 $aRAMOS, R. S.
773 $tExperimental and Applied Acarology$gv. 80, 2020.
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