Degradabilidade in situ da matéria seca, proteína bruta e fibra em detergente neutro de algumas gramíneas sob pastejo contínuo

Prado, Ivanor Nunes do; Moreira, Fernanda Barros; Zeoula, Lúcia Maria; Wada, Fabio Yoshimi; Mizubuti, Ivone Yurika; Neves, Carolina Antunes

doi:10.1590/s1516-35982004000500027

Cited by 11 publications

(7 citation statements)

References 10 publications

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“…The NDF levels found were high, and this could have harmed its degradation, because according to Mertens (1993), high concentrations of NDF in the plant indicate the thickening of the cell wall and greater resistance, both to the rupture by the chewing of the animal, but mainly to microbial penetration, which reduces the surface area for microbial attack, thus reducing the degradability of the NDF fraction itself. However, the NDF degradability found in this study are not inferior to those seen in other studies, such as Prado et al (2004), who reported a degradability of 34.8% for millet NDF with the plants having 61.38% NDF in the dry matter; or Brunette et al (2014), which verified 32.5% of NDF degradability, with a passage rate of 6.25% h -1…”

Section: Ruminal Degradationcontrasting

confidence: 65%

“…To this treatment, the estimated potential degradability was 72.78%. The values of the soluble fraction "A" are below than the found by Prado et al (2004), of 43.0%. There might have been microbial contamination, which contributed to decrease the values of effective degradability of CP (Brunette, Baurhoo, & Mustafa, 2014).…”

Section: Ruminal Degradationcontrasting

confidence: 57%

“…The mean value for each cultivar was of 58.85% to the BRS 1501 and 65.05% to the ADR 500. For peal millet pasture, Prado et al (2004) found potential degradability of 71.8%. The NDF levels found were high, and this could have harmed its degradation, because according to Mertens (1993), high concentrations of NDF in the plant indicate the thickening of the cell wall and greater resistance, both to the rupture by the chewing of the animal, but mainly to microbial penetration, which reduces the surface area for microbial attack, thus reducing the degradability of the NDF fraction itself.…”

Section: Ruminal Degradationmentioning

confidence: 97%

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Effect of Nitrification Inhibitor and Cutting Heights on Degradability of Pearl Millet

Corrêa¹,

França²,

Magalhães³

et al. 2017

JAS

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Pearl millet crop has been increasingly growing in Brazilian Savanna and it is already being used as cover crop between annual crops. The plant has great forage potential, besides being a nutrient recycling plant due to its peculiar root system. This study was developed in order to assess the pearl millet nutritional value when submitted to nitrogen fertilizer. It was evaluated the effect of nitrogen fertilizer (ammonium sulfate nitrate) treated with the nitrification inhibitor 3,4-dimethyl pyrazole phosphate (DMPP) on the ruminal degradability of two pearl millets' cultivars, under four nitrogen fertilization levels (0, 45, 90 and 180 kg ha ) and pre-cutting heights (0.70, 0.80 and 0.90 m). The experimental design was a randomized block design in a factorial 3 × 4 (3 cutting heights × 4 nitrogen doses) with three replications. Data were submitted to analysis of variance and means were compared by Tukey test at 5% probability. The DMPP treated Nitrogen, in high doses, increased the dry matter, crude protein and neutral detergent insoluble fiber degradability in pearl millet handled at 0.90 m. The combination of fertilization with 45 or 90 kg ha -1 of nitrogen treated with DMPP, with the management of millet at 0.70 or 0.80 m did not favored the forage nutritional quality, indicating that in these treatments, the ratio between the availability of nitrogen in ammonium and nitrate forms may have been detrimental to the plants.

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Section: Ruminal Degradationcontrasting

confidence: 65%

Section: Ruminal Degradationcontrasting

confidence: 57%

Section: Ruminal Degradationmentioning

confidence: 97%

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Effect of Nitrification Inhibitor and Cutting Heights on Degradability of Pearl Millet

Corrêa¹,

França²,

Magalhães³

et al. 2017

JAS

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“…As taxas de passagem 2, 5 ou 8%/hora correspondem à baixa, média ou alta ingestão do alimento (Oliveira et al, 2003;Magalhães et al, 2005;Carvalho et al, 2006b). Prado et al (2004) (Pires et al, 2006). Para a FDA, a mínima DE encontrada foi para o guandu, 15,0% (Carvalho et al, 2006a), e a máxima para a aveia-preta, 51,7% (Pires et al, 2006).…”

Section: Após a Determinação Dos Parâmetrosunclassified

Degradabilidade in situ da matéria seca e fração fibrosa do estilosantes Campo Grande

Magalhães

Corrêa²

2012

Arq. Bras. Med. Vet. Zootec.

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RESUMOAvaliou-se, pela técnica in situ, a degradabilidade da matéria seca e da fração fibrosa da leguminosa estilosantes Campo Grande (Stylosanthes spp.). A cultivar Campo Grande é composta por uma mistura física de sementes das variedades S. capitata e S. macrocephala. Para o ensaio da degradabilidade, usouse o método dos sacos de náilon, com duas incubações em um bovino adulto canulado no rúmen. O experimento foi realizado segundo o delineamento de blocos ao acaso, e os dados submetidos à análise de variância. A máxima degradabilidade efetiva foi atingida na taxa de passagem de 2%. Para a taxa de passagem de 5%, a degradabilidade efetiva foi de 68,4% para a matéria seca, 51,9% para a fibra em detergente neutro e 58,9% para a fibra em detergente ácido. Os resultados mostram que a cultivar analisada possui digestibilidade compatível com outras leguminosas tropicais atualmente utilizadas pelos produtores rurais, apresentando como vantagem o fato de ser nativa do bioma cerrado.Palavras-chave: bovino, leguminosa tropical, degradabilidade ruminal ABSTRACT Using the in situ technique, this work evaluated the dry matter and fiber fraction degradability of the Campo Grande Stylos (Stylozanthes spp.).The Campo Grande cultivar consists of a physical seed mixture of the S. capitata and S. macrocephala varieties. For the degradability assay the nylon bag method was used, with two incubations in rumen cannulated adult bovine female. In each incubation 25 samples of 7.0 g each were used. The samples were collected at 0, 6, 9, 12, 24, 36, 48, 72 and 96

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“…Para matéria seca e FDN, Savoie et al (1999), também encontraram maior degradabilidade da matéria seca e da FDN para o feno de alfafa peletizado em relação ao não tratado (56,0% contra 50,4% para MS e 27,1% contra 17,3% para FDN). No entanto, Beauchemin et al (1997) não encontraram redução na degradabilidade da proteína de alfafa fenada e ensilada, quando esta era peletizada (feno, 69%; feno peletizado, 70%; silagem, 87%; e silagem peletizada, 82%).…”

Section: Tempo De Incubação (H)unclassified

Degradabilidade ruminal dos fenos de aveia (Avena sativum L), Coast cross (Cynodon dactilon L.), e grama Esmeralda (Joysia japonica) peletizado ou não

et al. 2006

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ResumoO objetivo deste trabalho foi avaliar a degradabilidade ruminal da matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN) e fibra em detergente ácido (FDA) do feno de aveia (FA), feno de Coast cross (FCC), feno de grama Esmeralda peletizado (FEP) e feno de grama Esmeralda (FE). Foi utilizada a técnica in situ com quatro bovinos machos, castrados, fistulados no rúmen, distribuídos em um delineamento experimental em quadrado latino 4x4. O material foi incubado no rúmen nos tempos de 0, 6, 24, 48, 72 e 144 horas. Não houve diferença entre os fenos na taxa de degradação (c, %/h) para a PB, FDN e FDA. Para a MS, o FA e FEP apresentaram maior taxa de degradação. Houve diferença na degradabilidade efetiva (DE) da MS dos fenos sendo os valores observados: FA, 48,74%; FEP, 42,44%; FE, 35,13%; FCC, 30,24%. Conclui-se que o feno de aveia obteve maiores valores para a fração solúvel e maior degradabilidade efetiva para todos os nutrientes avaliados e a peletização da grama Esmeralda promoveu maior DE da MS e da fibra, sem alterar a DE da PB. Palavras-chave: Alimentos, degradação, ruminantes, volumoso AbstractThe objective of this work was to evaluate the ruminal degradability of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of the oat hay (OH), Coast cross hay (CCH), pellet Esmeralda grass hay (PEH) and Esmeralda grass hay (EH). The in situ technique was used, with four bovines, castrated, rumen fistulated, distributed in an Latin square 4x4 experimental design. The material was incubated in the rumen in the times 0, 6, 24, 48, 72 and 144 hours. There was no

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Degradabilidade in situ da matéria seca, proteína bruta e fibra em detergente neutro de algumas gramíneas sob pastejo contínuo

Cited by 11 publications

References 10 publications

Effect of Nitrification Inhibitor and Cutting Heights on Degradability of Pearl Millet

Effect of Nitrification Inhibitor and Cutting Heights on Degradability of Pearl Millet

Degradabilidade in situ da matéria seca e fração fibrosa do estilosantes Campo Grande

Degradabilidade ruminal dos fenos de aveia (Avena sativum L), Coast cross (Cynodon dactilon L.), e grama Esmeralda (Joysia japonica) peletizado ou não

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