| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amapá. |
|
Data corrente: |
27/12/2016 |
|
Data da última atualização: |
31/03/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SOARES, B. V.; CARDOSO, A. C. F.; CAMPOS, R. R.; GONÇALVES, B. B.; SANTOS, G. G.; CHAVES, F. C. M.; CHAGAS, E. C.; TAVARES-DIAS, M. |
|
Afiliação: |
BRUNA VIANA SOARES, UNIFAP; ADRIELE CAROLINA FRANCO CARDOSO, UNIFAP; ROSILENE RIBEIRO CAMPOS, UFAM; BIANCA BARATA GONÇALVES, CPAF-AP; GRACIENHE GOMES SANTOS, CPAF-AP; FRANCISCO CELIO MAIA CHAVES, CPAA; EDSANDRA CAMPOS CHAGAS, CPAA; MARCOS TAVARES-DIAS, CPAF-AP. |
|
Título: |
Antiparasitic, physiological and histological effects of the essential oil of Lippia origanoides (Verbenaceae) in native freshwater fish Colossoma macropomum. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
Aquaculture, v. 469, p. 72-78, Feb. 2017. |
|
Idioma: |
Inglês |
|
Conteúdo: |
This study examined the in vitro and in vivo, histopathological, anti-parasitic and hematopathological effects of the essential oil of Lippia origanoides on Colossoma macropomum. Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg·L-1 were tested in vitro against monogenoideans (Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri) from the gills of C. macropomum. Concentrations of 320 and 160 mg·L-1 were 100% effective against these parasites within 20 and 60 min of exposure, respectively. The 80 mg·L-1 concentration was approximately 80% effective with 3 h of exposure, reaching 100% with 6 h of exposure. The 40 mg·L-1 concentration was also 100% effective with 6 h of exposure. The other concentrations were only weakly effective in vitro. Parasite mortality in controls (water or water + alcohol) began after 3 h, with 100% mortality after 8 h. In vivo tests, in which fry of C. macropomum were placed in baths with 20 mg·L-1 of the essential oil for 60 min, and 40 mg·L-1 for 30 min, did not lead to reductions in parasite abundances. In addition, the essential oil had an anaesthetic effect on fish, increased total protein levels, increased monocyte and neutrophil numbers, and reduced haematocrit. Slight to moderate and severe damage was observed in the gills of C. macropomum fingerling immediately after exposure to the essential oil, and 24 h after the treatments were applied, with no difference between treatments. Histological changes observed in the gills after exposure to concentrations of 20 and 40 mg·L-1 of L. origanoides essential oil were: hyperplasia and fusion of the lamellar epithelium, capillary dilation, displacement of the lamellar epithelium, and lamellar aneurism and epithelial rupturing with haemorrhaging. Oedema, mucous and chloride cell proliferation, lamellar hypertrophy, congestion and necrosis were less frequently observed. It can be concluded that the essential oil of L. origanoides was dose-dependent in vitro effect against monogenoidean parasites of C. macropomum. Unfortunately, the low concentrations tolerated by the fish in the vivo assay (20 and 40 mg·L-1) was not effective. Statement of relevance: The manuscript represents original research on use of the essential oil of Lippia origanoides against ectoparasites of Colossoma macropomum, an important finfish of Amazon region. This manuscript includes treatment in vitro against monogenoideans, and in vivo against protozoans and monogenoideans. Besides, histopathological and hematological analysis of the fish exposed to different concentrations of L. origanoides, a medical plant from North, Central and South America, were performed. MenosThis study examined the in vitro and in vivo, histopathological, anti-parasitic and hematopathological effects of the essential oil of Lippia origanoides on Colossoma macropomum. Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg·L-1 were tested in vitro against monogenoideans (Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri) from the gills of C. macropomum. Concentrations of 320 and 160 mg·L-1 were 100% effective against these parasites within 20 and 60 min of exposure, respectively. The 80 mg·L-1 concentration was approximately 80% effective with 3 h of exposure, reaching 100% with 6 h of exposure. The 40 mg·L-1 concentration was also 100% effective with 6 h of exposure. The other concentrations were only weakly effective in vitro. Parasite mortality in controls (water or water + alcohol) began after 3 h, with 100% mortality after 8 h. In vivo tests, in which fry of C. macropomum were placed in baths with 20 mg·L-1 of the essential oil for 60 min, and 40 mg·L-1 for 30 min, did not lead to reductions in parasite abundances. In addition, the essential oil had an anaesthetic effect on fish, increased total protein levels, increased monocyte and neutrophil numbers, and reduced haematocrit. Slight to moderate and severe damage was observed in the gills of C. macropomum fingerling immediately after exposure to the essential oil, and 24 h after the treatments were applied, with no difference between treatments. Histological changes obse... Mostrar Tudo |
|
Palavras-Chave: |
Medicinal plant; Parasite. |
|
Thesagro: |
Parasito; Peixe de água doce; Planta medicinal; Sangue. |
|
Thesaurus Nal: |
Blood; Freshwater fish. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157452/1/CPAF-AP-2017-Antiparasitic-physiological-and-histological.pdf
|
|
Marc: |
LEADER 03594naa a2200301 a 4500
001 2059330
005 2017-03-31
008 2017 bl uuuu u00u1 u #d
100 1 $aSOARES, B. V.
245 $aAntiparasitic, physiological and histological effects of the essential oil of Lippia origanoides (Verbenaceae) in native freshwater fish Colossoma macropomum.$h[electronic resource]
260 $c2017
520 $aThis study examined the in vitro and in vivo, histopathological, anti-parasitic and hematopathological effects of the essential oil of Lippia origanoides on Colossoma macropomum. Essential oil concentrations of 10, 20, 40, 80, 160 and 320 mg·L-1 were tested in vitro against monogenoideans (Anacanthorus spathulatus, Notozothecium janauachensis and Mymarothecium boegeri) from the gills of C. macropomum. Concentrations of 320 and 160 mg·L-1 were 100% effective against these parasites within 20 and 60 min of exposure, respectively. The 80 mg·L-1 concentration was approximately 80% effective with 3 h of exposure, reaching 100% with 6 h of exposure. The 40 mg·L-1 concentration was also 100% effective with 6 h of exposure. The other concentrations were only weakly effective in vitro. Parasite mortality in controls (water or water + alcohol) began after 3 h, with 100% mortality after 8 h. In vivo tests, in which fry of C. macropomum were placed in baths with 20 mg·L-1 of the essential oil for 60 min, and 40 mg·L-1 for 30 min, did not lead to reductions in parasite abundances. In addition, the essential oil had an anaesthetic effect on fish, increased total protein levels, increased monocyte and neutrophil numbers, and reduced haematocrit. Slight to moderate and severe damage was observed in the gills of C. macropomum fingerling immediately after exposure to the essential oil, and 24 h after the treatments were applied, with no difference between treatments. Histological changes observed in the gills after exposure to concentrations of 20 and 40 mg·L-1 of L. origanoides essential oil were: hyperplasia and fusion of the lamellar epithelium, capillary dilation, displacement of the lamellar epithelium, and lamellar aneurism and epithelial rupturing with haemorrhaging. Oedema, mucous and chloride cell proliferation, lamellar hypertrophy, congestion and necrosis were less frequently observed. It can be concluded that the essential oil of L. origanoides was dose-dependent in vitro effect against monogenoidean parasites of C. macropomum. Unfortunately, the low concentrations tolerated by the fish in the vivo assay (20 and 40 mg·L-1) was not effective. Statement of relevance: The manuscript represents original research on use of the essential oil of Lippia origanoides against ectoparasites of Colossoma macropomum, an important finfish of Amazon region. This manuscript includes treatment in vitro against monogenoideans, and in vivo against protozoans and monogenoideans. Besides, histopathological and hematological analysis of the fish exposed to different concentrations of L. origanoides, a medical plant from North, Central and South America, were performed.
650 $aBlood
650 $aFreshwater fish
650 $aParasito
650 $aPeixe de água doce
650 $aPlanta medicinal
650 $aSangue
653 $aMedicinal plant
653 $aParasite
700 1 $aCARDOSO, A. C. F.
700 1 $aCAMPOS, R. R.
700 1 $aGONÇALVES, B. B.
700 1 $aSANTOS, G. G.
700 1 $aCHAVES, F. C. M.
700 1 $aCHAGAS, E. C.
700 1 $aTAVARES-DIAS, M.
773 $tAquaculture$gv. 469, p. 72-78, Feb. 2017.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amapá (CPAF-AP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
13/08/2023 |
|
Data da última atualização: |
13/08/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
SILVA, C. S. da; LEÃO, J. M.; LAGE, C. F. A.; COELHO, S. G.; CAMPOS, M. M. |
|
Afiliação: |
CAMILA S. DA SILVA; JULIANA M. LEÃO, The Saskatoon Colostrum Company; CAMILA F. A. LAGE, Cornell Cooperative Extension; SANDRA G. COELHO, Universidade Federal de Minas Gerais; MARIANA MAGALHAES CAMPOS, CNPGL. |
|
Título: |
Residual feed intake as an efficiency metric for pre-weaning dairy calves: what do we know? |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Life, v. 13, 1727, 2023. |
|
DOI: |
https://doi.org/10.3390/life13081727 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Dairy cattle systems have targeted improvements in feed efficiency by selecting animals that can convert less feed into more products. Residual feed intake (RFI) has been the index of choice when selecting dairy cattle for feed efficiency. Nonetheless, RFI studies have focused on lactating cows, and the crucial importance of pre-weaning efficiency on farm profitability and cow productivity has been mostly neglected. This review discusses the current knowledge of how RFI divergence relates to nutrient metabolism in pre-weaning dairy calves, including the advantages and limitations of evaluating RFI in this phase. Existing literature indicates that nutrient utilization, energy metabolism, protein metabolism, vitamin metabolism, intestinal development, and hindgut bacterial populations may be implicated in RFI divergence between pre-weaning calves. Techniques developed to date to evaluate RFI in this phase are still evolving to better adapt to the unique characteristics of this phase, and more research is needed to fill in the gaps in our current understanding of early-life feed efficiency divergence in cattle. However, current results suggest great potential for selecting high-efficiency calves while in pre-weaning to accelerate the progress of genetic selection in dairy cattle. |
|
Palavras-Chave: |
Desmame; Teste de eficiência. |
|
Thesagro: |
Bezerro Leiteiro; Gado Leiteiro. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155878/1/Residual-feed-intake-as-an-efficiency-metric.pdf
|
|
Marc: |
LEADER 01963naa a2200229 a 4500
001 2155878
005 2023-08-13
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/life13081727$2DOI
100 1 $aSILVA, C. S. da
245 $aResidual feed intake as an efficiency metric for pre-weaning dairy calves$bwhat do we know?$h[electronic resource]
260 $c2023
520 $aDairy cattle systems have targeted improvements in feed efficiency by selecting animals that can convert less feed into more products. Residual feed intake (RFI) has been the index of choice when selecting dairy cattle for feed efficiency. Nonetheless, RFI studies have focused on lactating cows, and the crucial importance of pre-weaning efficiency on farm profitability and cow productivity has been mostly neglected. This review discusses the current knowledge of how RFI divergence relates to nutrient metabolism in pre-weaning dairy calves, including the advantages and limitations of evaluating RFI in this phase. Existing literature indicates that nutrient utilization, energy metabolism, protein metabolism, vitamin metabolism, intestinal development, and hindgut bacterial populations may be implicated in RFI divergence between pre-weaning calves. Techniques developed to date to evaluate RFI in this phase are still evolving to better adapt to the unique characteristics of this phase, and more research is needed to fill in the gaps in our current understanding of early-life feed efficiency divergence in cattle. However, current results suggest great potential for selecting high-efficiency calves while in pre-weaning to accelerate the progress of genetic selection in dairy cattle.
650 $aBezerro Leiteiro
650 $aGado Leiteiro
653 $aDesmame
653 $aTeste de eficiência
700 1 $aLEÃO, J. M.
700 1 $aLAGE, C. F. A.
700 1 $aCOELHO, S. G.
700 1 $aCAMPOS, M. M.
773 $tLife$gv. 13, 1727, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
