Atenção: Todas as denúncias são sigilosas e sua identidade será preservada.
Os campos nome e e-mail são de preenchimento opcional
Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Universidade Federal de Mato Grosso | - |
Autor(es): dc.contributor | University of New Hampshire | - |
Autor(es): dc.contributor | Federal University of Espírito Santo | - |
Autor(es): dc.creator | Torres, R. N.S. [UNESP] | - |
Autor(es): dc.creator | Moura, D. C. | - |
Autor(es): dc.creator | Ghedini, C. P. | - |
Autor(es): dc.creator | Ezequiel, J. M.B. [UNESP] | - |
Autor(es): dc.creator | Almeida, M. T.C. | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:25:59Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:25:59Z | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-08-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.smallrumres.2020.106148 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/198946 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/198946 | - |
Descrição: dc.description | This study was carried to evaluate the effects of essential oils (EO) supplementation to sheep diets on their performance and ruminal fermentation characteristics through meta-analysis. Twenty-one peer-reviewed publications with 50 treatment means were included in the data set. The effects of EO as an additive in sheep diets were evaluated using random-effect models to examine the raw mean difference (RMD) between EO treatment (diets with EO inclusion as an additive) and control treatment (diets with no additives). Heterogeneity was explored by meta-regression and subgroup analysis performed for: animal age; EO supplementation period, experimental design; EO extraction methods; amount of EO and primary bioactive compound in EO. The major bioactive compounds in EO were: carnosic acid (25.71%), carvacrol (22.86%) and thymol (11.42%). Essential oils supplementation reduced average daily gain (RMD = -0.01 kg/day; P < .0001), slaughter weight (RMD = -0.77 kg; P = 0.02) and hot carcass weight (RMD = -0.56 kg; P = 0.01). Similarly, crude protein digestibility, rumen protozoa population and acetate concentration were depressed in animals receiving EO supplementation. Improvements on neutral detergent fiber digestibility and rumen concentration of propionate and butyrate were reported with EO supplementation. Among the covariates, inclusion levels of EO greater than 100 mg/kg of DM reduced average daily gain, whereas, inclusion levels greater than 200 mg/kg of DM, negatively impacted slaughter weight. The best results regarding rumen propionate and NH3-N concentrations were reported when EO were fed for less than 30 days, suggesting that an adaptation to the antimicrobial activity of essential oils may occur with time. The results reported in our meta-analysis demonstrate no effectiveness of EO in improving sheep performance. | - |
Descrição: dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | - |
Descrição: dc.description | Animal Unit of Digestive and Metabolic Studies in the Department of Animal Science School of Agricultural and Veterinarian Sciences São Paulo State University (UNESP) | - |
Descrição: dc.description | Dairy Cattle Research Laboratory Instituto de Ciências Agrárias e Ambientais Universidade Federal de Mato Grosso, Campus Sinop | - |
Descrição: dc.description | Department of Agriculture Nutrition and Food Systems University of New Hampshire | - |
Descrição: dc.description | Department of Animal Science Federal University of Espírito Santo | - |
Descrição: dc.description | Animal Unit of Digestive and Metabolic Studies in the Department of Animal Science School of Agricultural and Veterinarian Sciences São Paulo State University (UNESP) | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Small Ruminant Research | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | carcass | - |
Palavras-chave: dc.subject | lamb | - |
Palavras-chave: dc.subject | Phytogenic additives | - |
Palavras-chave: dc.subject | protozoa | - |
Título: dc.title | Meta-analysis of the effects of essential oils on ruminal fermentation and performance of sheep | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
O Portal eduCAPES é oferecido ao usuário, condicionado à aceitação dos termos, condições e avisos contidos aqui e sem modificações. A CAPES poderá modificar o conteúdo ou formato deste site ou acabar com a sua operação ou suas ferramentas a seu critério único e sem aviso prévio. Ao acessar este portal, você, usuário pessoa física ou jurídica, se declara compreender e aceitar as condições aqui estabelecidas, da seguinte forma: