Ruminal parameters and in-situ degradability of rations with wheat middling substitution for corn

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Londrina (UEL)-
Autor(es): dc.contributorUEL-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUENP-
Autor(es): dc.creatorBrito, Vinicius Campachi-
Autor(es): dc.creatordas Dores Ferreira da Silva, Leandro-
Autor(es): dc.creatorde Arruda, Maria Carolina Gonçalves [UNESP]-
Autor(es): dc.creatorde Souza Tagliatella, Dagiale Kelly-
Autor(es): dc.creatorGrandis, Fernando Augusto-
Autor(es): dc.creatorBumbieris, Valter Harry-
Autor(es): dc.creatorRamos, Lucas Camargo-
Autor(es): dc.creatorde Camargo, Higor Souza-
Autor(es): dc.creatorPereira, Vitor Hugo-
Autor(es): dc.creatorMizubuti, Ivone Yurika-
Data de aceite: dc.date.accessioned2022-02-22T00:46:35Z-
Data de disponibilização: dc.date.available2022-02-22T00:46:35Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.5433/1679-0359.2021v42n3Supl1p1707-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/206256-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/206256-
Descrição: dc.descriptionThis study aimed to evaluate the effect of substituting corn with wheat middling on the in-situ degradability of foods and ruminal parameters of cattle. The experiment was conducted at the Ruminant Studies Unit and the Laboratory of Food Analysis and Animal Nutrition of Londrina State University. Five rumen-fistulated cattle with an average weight of 521 ± 38.22 kg were housed in individual stalls. The experimental design used was a Latin square with five treatments (100% C, 75% C 25% WM, 50% C 50% WM, 25% C 75% WM, and 100% WM) and five periods of 25 days each. The pH and ammoniacal nitrogen (N-NH3) concentration in ruminal fluid was measured before feeding and 2, 4, 6, and 8 h after feeding in subdivided parcels. The in-situ degradability of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF) were determined by incubating silage samples and measuring concentrates in the rumen of cattle. The levels of substitution of corn by wheat middling did not alter the pH and N-NH3 values but was influenced by the collection time. The N-NH3 presented quadratic behavior with a point of maximum rumen concentration (5.31 mgdL-1) reached 1.12 h after feeding. The pH presented quadratic behavior with a point of minimum (6.04) reached 4.32 h after feeding. The effective degradability (ED) of DM with 2, 5 and 8%h-1 of passage rate was influenced by the substitution of corn by wheat middling, with increasing linear behavior. The ED 2%h-1 varied from 46.19% to 50.24%, the ED 5%h-1 varied from 33.76% to 38.68%, and the ED 8%h-1 values ranged from 28.16% to 32.92% for the 100% C and 100% WM treatments. Higher values, for treatments with higher levels of substitution of corn by wheat middling, occurred owing to the lower fiber content and to the largest soluble fractions and degradation rate of DM in rations with wheat middling. The ED of CP and NDF with passage rates of 2, 5 and 8%h-1 presented quadratic behavior. The ED 2, 5 and 8%h-1 of CP presented maximums of 75.9%, 77.9%, and 86.2%, with averages of 52.02%, 45.93%, and 42.23%, respectively. The ED 2, 5 and 8%h-1 of NDF presented minimum points of 29.6%, 34.7%, and 35.2%, with averages of 41.60%, 33.43%, and 27.76%, respectively. Wheat middling can be used for total substitution of corn without damaging ruminal pH and N-NH3, in addition to improving the degradability of rations.-
Descrição: dc.descriptionState University of Londrina UEL-
Descrição: dc.descriptionZootechnical Department UEL-
Descrição: dc.descriptionPaulista State University UNESP-
Descrição: dc.descriptionUEL-
Descrição: dc.descriptionState University of Northern Paraná UENP-
Descrição: dc.descriptionDepartment of Zootechnical Graduate Program in Animal Science UEL-
Descrição: dc.descriptionPaulista State University UNESP-
Formato: dc.format1707-1724-
Idioma: dc.languageen-
Relação: dc.relationSemina:Ciencias Agrarias-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCattle-
Palavras-chave: dc.subjectConfinement-
Palavras-chave: dc.subjectCoproducts-
Palavras-chave: dc.subjectRuminants-
Título: dc.titleRuminal parameters and in-situ degradability of rations with wheat middling substitution for corn-
Título: dc.titleParâmetros ruminais e degradabilidade in situ de rações com triguilho em substituição ao milho-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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