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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Univ Fed Campina Grande | - |
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Univ Fed Ceara | - |
Autor(es): dc.contributor | Universidade Federal da Bahia (UFBA) | - |
Autor(es): dc.creator | Carvalho, A. de B. | - |
Autor(es): dc.creator | Silva, A. L. da | - |
Autor(es): dc.creator | Silva, A. M. de A. | - |
Autor(es): dc.creator | Netto, A. J. | - |
Autor(es): dc.creator | Medeiros, T. T. B. de | - |
Autor(es): dc.creator | Araujo Filho, J. M. | - |
Autor(es): dc.creator | Agostini, D. L. da S. [UNESP] | - |
Autor(es): dc.creator | Oliveira, D. L. de | - |
Autor(es): dc.creator | Mazzetto, S. E. | - |
Autor(es): dc.creator | Kotzebue, L. R. | - |
Autor(es): dc.creator | Oliveira, J. R. | - |
Autor(es): dc.creator | Oliveira, R. L. | - |
Autor(es): dc.creator | Bezerra, L. R. | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:08:59Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:08:59Z | - |
Data de envio: dc.date.issued | 2020-12-09 | - |
Data de envio: dc.date.issued | 2020-12-09 | - |
Data de envio: dc.date.issued | 2019-10-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.smallrumres.2019.09.005 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/196278 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/196278 | - |
Descrição: dc.description | The objective of this study was to evaluate the effects of including slow-release urea microencapsulated in beeswax in the diet of adult sheep on intake, digestibility, and nitrogen (N) balance. Two microencapsulated system formulations were developed with ratios (wt/wt) of 1:2 (U(ME)1:2) and 1:2 + sulfur (U(ME)1:2 + S) between the core (urea) and encapsulant (beeswax). The U(ME)1:2 formulation had greater yield values, microencapsulation efficiency and thermal stability than U(ME)1:2 + S. The most efficient formulation (U(ME)1:2) was added to the diet of twenty-four uncastrated male sheep, adult, crossbred Santa Ines, 9 months old with an average body weight of 28.2 kg +/- 0.6 kg. The experimental arrangement was a completely randomized design in which the animals were distributed into four treatments that included different levels of urea microencapsulated in beeswax, U(ME)1:2 without S (0, 1.5, 3.0 and 4.5% in total dry matter (DM)), and six replicates in a total experimental period of 19 days, with 14 days for adaptation. The inclusion of urea microencapsulated in beeswax did not affect (P > 0.05) DM, crude protein, ether extract, ash, total carbohydrate or crude energy intake or digestibility. In addition, the nonfibrous carbohydrate (NFC), neutral detergent fiber (NDF), and acid detergent fiber (ADF) intake, N intake, N excretion (urinary and fecal), N absorbed, N retained, N retention/N intake and N retained/N absorbed were not affected (P > 0.05) by the inclusion of urea micro-encapsulated in beeswax. However, there was a linear increase in NDF (P = 0.031) and ADF (P = 0.004) digestibility as the inclusion level of encapsulated urea increased from 0 to 4.5%. The NFC digestibility showed a quadratic increase (P < 0.001) with the greatest digestibility at 3.0% microencapsulated urea. Beeswax was shown to be an efficient microencapsulant to obtain microparticles containing urea, and the formulation of U(ME)1:2 without the addition of S is recommended since it showed better yield and efficiency than the formulation with S. The inclusion of up to 4.5% urea microencapsulated in the lipid matrix of beeswax is recommended to improve NDF and ADF digestibility without affecting intake and N balance. | - |
Descrição: dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
Descrição: dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | - |
Descrição: dc.description | Univ Fed Campina Grande, Dept Anim Sci, Univ Ave,Caixa Postal 61, Patos de Minas, Paraiba, Brazil | - |
Descrição: dc.description | State Univ Sao Paulo, Dept Phys Chem & Biol, Roberto Simonsen St 305, BR-19060900 Presidente Prudente, SP, Brazil | - |
Descrição: dc.description | Univ Fed Ceara, Dept Organ & Inorgan Chem, Contorno St, BR-60451970 Fortaleza, Ceara, Brazil | - |
Descrição: dc.description | Univ Fed Bahia, Dept Anim Sci, Adhemar Barros Ave 500, BR-40170110 Salvador, BA, Brazil | - |
Descrição: dc.description | State Univ Sao Paulo, Dept Phys Chem & Biol, Roberto Simonsen St 305, BR-19060900 Presidente Prudente, SP, Brazil | - |
Formato: dc.format | 56-63 | - |
Idioma: dc.language | en | - |
Publicador: dc.publisher | Elsevier B.V. | - |
Relação: dc.relation | Small Ruminant Research | - |
???dc.source???: dc.source | Web of Science | - |
Palavras-chave: dc.subject | Intake | - |
Palavras-chave: dc.subject | Microspheres | - |
Palavras-chave: dc.subject | N-NH3 | - |
Palavras-chave: dc.subject | Nitrogen balance | - |
Título: dc.title | Effect of slow-release urea microencapsulated in beeswax and its inclusion in ruminant diets | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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