7 results on '"Andrade, Marina Elizabeth Barbosa"'
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2. How Are Warm-Season Pastures' Nutritive Value and Fermentation Characteristics Affected by Open Pasture, Silvopasture, and Sward Herbage Maturity?
- Author
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Ferreira, Mariane Rodrigues, Cardoso, Abmael da Silva, Andrade, Marina Elizabeth Barbosa, Brito, Thais Ribeiro, and Ruggieri, Ana Cláudia
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GUINEA grass ,GRASSES ,SILVOPASTORAL systems ,PASTURES ,MASS production - Abstract
This study aimed to evaluate the forage mass and nutritional value (NV) of Guinea Massai grass (Megathyrsus maximus × Megathyrsus infestum) in an open pasture (OP) or the silvopastoral system (SPS) at different stages of development (SDs). The experimental design was completely randomized, with five replications. The treatments were distributed in a factorial scheme 2 × 4, corresponding to types of systems (OP and SPS) and four SD (vegetative stage—S1, pre-flowering—S2, full flowering—S3 and maturity after flowering—S4). There was no interaction of the system × stage of plant development in any of the variables evaluated. The production of forage mass and Guinea Massai grass morphological components did not differ (p > 0.05) between SPS and OP. However, they differed between the SDs (p ≤ 0.05), with an increasing linear effect for forage mass, percentage of the stem, and dead material, and decreasing for leaf percentage and leaf: stem ratio. Only protein content differed (p < 0.05) among the chemical composition variables between culture systems. The shading caused by the SPS did not decrease the forage mass, NV, and in vitro dry matter digestibility of Guinea Massai grass compared to the system in OP. The advance of the SD of Guinea Massai grass increases the forage mass, with higher proportions of morphological components of low NV, such as stem and dead material. Silvopastoral system of Guinea Massai grass and eucalyptus is effective to prolongate the grazing season, with a greater amount of green leaves in the sward and better NV, without compromising herbage mass production in the forage growing season. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Use of docosahexaenoic acid for lamb diet
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Araújo, Maria Júlia Pereira, primary, Schultz, Erica Beatriz, additional, Jesus, Thauane Ariel Valadares, additional, Andrade, Marina Elizabeth Barbosa, additional, Sousa, Luciana Melo, additional, and Macedo Júnior, Gilberto de Lima, additional
- Published
- 2020
- Full Text
- View/download PDF
4. Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites
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Santos, Rogério Pereira dos, Macedo Junior, Gilberto de Lima, Silva, Simone Pedro da, Sousa, Luciano Fernandes de, and Andrade, Marina Elizabeth Barbosa
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sheep ,água ,proteína ,ureia ,albumina ,water ,ovinos ,globulina ,urea ,protein ,globulin ,albumin - Abstract
The aim of this study was to assess the effect of propylene glycol (PG) added to the water sheep drank during lactation on protein and mineral metabolites of their suckling lambs. We assessed 24 lambs born to sheep fed levels of propylene glycol in the water (0; 1.5; 3.0 and 4.5%). The sheep were subdivided according to a completely randomized design, in a split-plot scheme. There was no interaction effect between lamb age and amount of PG provided to the sheep on the concentration of protein and mineral metabolites of the lambs. The concentration of total protein, globulin, and albumin: globulin ratio, uric acid and creatinine in the lambs was not affected by the inclusion of PG (p > 0.05). The concentration of urea and magnesium in the lambs presented a quadratic response as a function of the addition of PG; there was linear response for albumin concentration. The addition of PG to the sheep’s diet and the lambs’ age affect the concentration of protein and mineral metabolites in the lambs. However, using PG to feed lactating sheep does not have negative effects on the lambs’ blood parameters, as evidenced by the absence of nutritional deficiency (protein and minerals) in the suckling lambs. RESUMO. Objetivou-se avaliar o efeito da inclusão do propilenoglicol na água de ovelhas durante a lactação sobre os metabólitos proteicos e minerais de suas crias. Foram avaliados 24 cordeiros (as), filhos (as) de ovelhas que receberam níveis de propilenoglicol (0; 1,5; 3,0 e 4,5%) na água. As ovelhas foram distribuídas em delineamento inteiramente casualizado em esquema de parcela subdividida. Não houve efeito de interação entre a idade dos cordeiros (a)s e a quantidade(s) de propilenoglicol oferecido para as mães na concentração dos metabólitos proteicos e minerais dos cordeiros. A concentração de proteínas totais, globulinas, relação albumina:globulinas, ácido úrico e creatinina nos cordeiros não foi afetada pela inclusão de propilenoglicol na água das matrizes. A concentração de ureia e magnésio nos cordeiros apresentou resposta quadrática em função da inclusão de propilenoglicol na dieta das ovelhas, sendo que para a concentração de albumina houve resposta linear. A inclusão de propilenoglicol na dieta das ovelhas e a idade dos cordeiros alteram a concentração dos metabólitos proteicos e minerais nas crias. Contudo, a utilização do propilenoglicol na alimentação de ovelhas lactantes não proporciona efeitos negativos nos parâmetros sanguíneos dos cordeiros, o que é evidenciado pela ausência de déficit nutricional (proteína e minerais) nos cordeiros lactentes.
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- 2017
5. Curvas de crescimento dos órgãos do sistema visceral de caprinos Saanen
- Author
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Andrade, Marina Elizabeth Barbosa [UNESP], Universidade Estadual Paulista (Unesp), and Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP]
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Intestines ,Fígado ,Gastrointestinal tract ,Liver ,Mesenteric adipose tissue ,Stomachs ,Intestinos ,Estômagos ,Tecido adiposo mesentérico ,Trato gastrointestinal - Abstract
Submitted by MARINA ELIZABETH BARBOSA ANDRADE null (marina.elizabeth.15@hotmail.com) on 2017-09-05T20:54:30Z No. of bitstreams: 1 Dissertacao_Marina_Elizabeth_Barbosa_Andrade.pdf: 1779690 bytes, checksum: 51b157ca3cbbdb6dc57ecd5a6207a396 (MD5) Rejected by Luiz Galeffi (luizgaleffi@gmail.com), reason: Solicitamos que realize uma nova submissão seguindo a orientação abaixo: A folha de aprovação deve ser inserida na página subsequente à ficha catalográfica. Corrija esta informação e realize uma nova submissão contendo o arquivo correto. Agradecemos a compreensão. on 2017-09-06T16:31:12Z (GMT) Submitted by MARINA ELIZABETH BARBOSA ANDRADE null (marina.elizabeth.15@hotmail.com) on 2017-09-06T19:11:35Z No. of bitstreams: 1 Dissertacao_Marina_Elizabeth_Barbosa_Andrade.pdf: 1979789 bytes, checksum: e5046942b9fb3e5014e6fa1eadfcd9db (MD5) Approved for entry into archive by Monique Sasaki (sayumi_sasaki@hotmail.com) on 2017-09-11T19:35:47Z (GMT) No. of bitstreams: 1 andrade_meb_me_jabo.pdf: 1979789 bytes, checksum: e5046942b9fb3e5014e6fa1eadfcd9db (MD5) Made available in DSpace on 2017-09-11T19:35:47Z (GMT). No. of bitstreams: 1 andrade_meb_me_jabo.pdf: 1979789 bytes, checksum: e5046942b9fb3e5014e6fa1eadfcd9db (MD5) Previous issue date: 2017-07-10 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Este trabalho foi realizado utilizando informações de 7 estudos, em que foram ajustadas curvas de crescimento ao desenvolvimento dos órgãos do sistema visceral de fêmeas, machos castrados e machos inteiros da raça Saanen de 0,5 a 19,5 meses de idade. Inicialmente, foram avaliados oito modelos: Regressão linear simples; Quadrático; Monomolecular; Brody; Von Bertalanffy; Logística; Gompertz; e Richards. Os dados dos órgãos viscerais (fígado, pâncreas, baço, rúmen-retículo, omaso, abomaso, intestino delgado e intestino grosso) e tecido adiposo mesentérico (TAM), foram ajustados nos modelos usando o procedimento NLMIXED do SAS. O melhor modelo ajustado foi escolhido com base no Critério de Informações Akaike corrigido para pequenas amostras (AICc) e nos coeficientes de correlação de concordância (CCC). Após a escolha do modelo que melhor ajustou a curva de crescimento dos órgãos viscerais avaliados, modelamos a variância buscando um melhor ajuste. Os parâmetros dos modelos para cada sexo foram comparados utilizando o comando CONTRAST (p < 0,10). Em geral, o modelo que melhor descreveu o crescimento de órgãos do sistema visceral foi o logístico (menor AICc e maior CCC). Quando os órgãos foram expressos em gramas, o sexo não influenciou os parâmetros das equações para predição do crescimento dos órgãos avaliados (p > 0,10), exceto o MAT (p < 0,02); em que as fêmeas apresentaram menor taxa de deposição comparada aos machos inteiros e castrados (0,318 ± 0,034 vs 0,659 ± 0,062), e um ponto de inflexão superior ao dos machos inteiros e castrados (7,7 vs 3,7 meses). No entanto, essa diferença entre os sexos não é encontrada quando o MAT é expresso em % ao peso do corpo vazio (PCV). Independentemente do sexo, no início do crescimento, o fígado representou 2,75 ± 0,113 % do PCV, cresceu (g) a uma taxa máxima de 0,531 ± 0,062, e o ponto de inflexão de sua curva ocorreu em 1,7 meses. O trato gastrointestinal (TGI) representou 9,14 ± 0,493 % PCV, e à medida que os animais cresceram o TGI diminuiu sua porcentagem em relação ao PCV a uma taxa constante de 0,135 ± 0,046 %. Considerando o período avaliado, em geral, o rúmen-retículo e o intestino grosso aumentaram sua porcentagem em relação ao PCV e TGI, enquanto o abomaso e o intestino delgado diminuíram sua porcentagem em relação ao PCV e TGI, à medida que o animal crescia. O rúmen-retículo e o intestino grosso, que estão diretamente relacionados à digestão de alimentos sólidos, apresentaram maiores taxas de crescimento nos dois primeiros meses de vida. Os resultados evidenciaram que o sexo não afeta o crescimento de órgãos do sistema visceral (g), exceto para MAT, porém, quando olhamos em % PCV alguns órgãos mostram diferenças entre os sexos, como o fígado, abomaso, intestino delgado, intestino grosso e intestinos. O conhecimento da curva de crescimento dos órgãos viscerais pode ser muito útil para melhorar a compreensão de seu impacto sobre as exigências nutricionais desses animais, e ser utilizado para otimizar ou desenvolver um plano nutricional adequado para cada fase de crescimento, como também auxiliar os produtores a desenvolver planos estratégicos em um rebanho de caprinos, como a melhor idade para desmame e abate desses animais. This work was performed gathering information of 7 studies, in which growth curves were fitted to the visceral organs of female, intact male, and castrated male Saanen goats from 0.5 to 19.5 months old. Initially, eight models were assessed: Monomolecular; Simple linear regression; Quadratic; Monomolecular; Brody; Von Bertalanffy; Logistics; Gompertz; and Richards. Data of the visceral organs (liver, pancreas, spleen, rumen-reticulum, omasum, abomasum, small intestine, and large intestine) and mesenteric adipose tissue (MAT) were fitted in the models using NLMIXED procedure of SAS. The best fitted model was choosing based on the Akaike Corrected Information Criterion for small samples (AICc) and values and the concordance correlation coefficient (CCC). After choosing the model that best fitted the growth curve of the evaluated visceral organs, we modelled the variance seeking a better fit. Parameters of the models for each sex were compared using the CONTRAST statement (p < 0.10). Overall, the model that best described visceral organ growth was the logistic (i.e., lower AICc and higher CCC). When organs were expressed in grams, the sex did not influence the parameters of equations to predict the growth of the evaluated organs (p > 0.10), except for TAM (p < 0.02); females presented a lower deposition rate compared to intact males and castrated males (0.318 ± 0.034 vs 0.659 ± 0.062), and a inflection point higher than intact males and castrated males (7.65 vs 3.69 months). However, this difference between the sexes is not found when TAM is expressed in % to empty body weight (EBW). Irrespective of sex, at the beginning of growth, liver stood for 2.75 ± 0.113 % of EBW, grew (g) at a maximum rate of 0.531 ± 0.062, and its inflection point of the curve occurred at 1.7 months. The gastrointestinal tract (GIT) stood for 9.14 ± 0.493 % EBW, and as the goats grew the GIT decreased its percentage in relation to the EBW at a constant rate of 0.135 ± 0.046 %. Considering the evaluated period, in general rumen-reticulum and large intestine increased their percentage in relation to EBW and GIT, whereas abomasum and small intestine decreased their percentage in relation to EBW and GIT, as animal grew. The rumen-reticulum and large intestine, which are directly related to the digestion of solid foods, presented higher growth rates in the first two months of life. The results highlighted that sex does not affect the growth of visceral organs (g), except for TAM. However, when we look at % EBW, some organs show differences between the sexes, such as the liver, abomasum, small intestine, large intestine and Intestines. Knowledge of the growth curve of the visceral organs can be very useful in improving the understanding of their impact on the nutritional requirements of these animals and can be used to optimize or develop a nutritional plan suitable for each growth phase, but also to help producers develop strategic plans for a herd of goats, such as the best age for weaning and slaughtering these animals.
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- 2017
6. A suplementação com propilenoglicol melhora o metabolismo energético em ovelhas gestantes
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Dos Santos, Rogério Pereira, De Lima Macedo, Gilberto, Da Silva, Simone Pedro, Sousa, Luciano Fernandes, Andrade, Marina Elizabeth Barbosa [UNESP], Caixa Postal 132, Universidade Federal de Uberlândia (UFU), and Universidade Estadual Paulista (UNESP)
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Glucose ,Sheep ,Pregnancy ,NEFA ,Triglycerides - Abstract
Made available in DSpace on 2022-04-28T19:08:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-01 The objective was to evaluate the effect of propylene glycol inclusion in water pregnant ewes on energy metabolic parameters. We evaluated 28 pregnant ewes which received various levels of propylene glycol (PG) in water. These sheep were distributed in four treatments (0, 1.5, 3.0 and 4.5% PG) in a randomized design in a split plot design. The highest propylene glycol inclusion (3.0 and 4.5%) in the water caused linear increase in blood glucose concentration throughout the gestational period. The blood glucose concentration in sheep receiving 3% propylene glycol in water increased linearly with the increase in the collection period. On the other hand, for the sheep who received 4.5% of propylene glycol response was quadratic. The addition of propylene glycol in the pregnant sheep of water improves energy metabolic parameters, and the use of this substance its very important to minimize the negative energy balance at the end of pregnancy. Escola de Medicina Veterinária E Zootecnia Universidade Federal do Tocantins Universitaria - Zona Rural Caixa Postal 132, Campus de Araguaina, BR 153, km 112, Fazenda Faculdade de Medicina Veterinária Universidade Federal de Uberlândia, Rua Ceará, S/N Faculdade de Ciências Agrárias E Veterinárias de Jaboticabal Universidade Estadual Paulista Júlio de Mesquita Filho Vila Industrial, Via de Acesso Prof. Paulo Donato Castellane, S/N Faculdade de Ciências Agrárias E Veterinárias de Jaboticabal Universidade Estadual Paulista Júlio de Mesquita Filho Vila Industrial, Via de Acesso Prof. Paulo Donato Castellane, S/N
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- 2017
7. Inclusion of propylene glycol in the diet of sheep and its effect on their lambs’ protein and mineral metabolites
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Santos, Rogério Pereira dos, primary, Macedo Junior, Gilberto De Lima, additional, Silva, Simone Pedro da, additional, Sousa, Luciano Fernandes de, additional, and Andrade, Marina Elizabeth Barbosa, additional
- Published
- 2017
- Full Text
- View/download PDF
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