Qualidade das silagens de três híbridos de sorgo ensilados em cinco diferentes estádios de maturação

Araújo, Vera Lúcia de; Rodríguez, N. M.; Gonçalves, Lúcio Carlos; Rodrigues, J. A. S.; Borges, I.; Borges, A. L. C. C.; Saliba, E. O. S.

doi:10.1590/s0102-09352007000100028

Cited by 17 publications

(12 citation statements)

References 4 publications

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“…Silage of CMS-XS 165 showed the highest value, followed by CMS-XS 114, BR-601 and BR 700 (Table 2). Results for the fraction A were similar to those reported by Araújo et al (2007) who reported soluble fractions of 19.89% for the hybrid BR 700, and 20.01% for the hybrid BR-601. The potentially degradable insoluble fraction (B) of dry matter was between 43.43 and 55.36%, and the highest value was found for silage of BR-601 (without tannin), and all silages were different from each other.…”

Section: Resultsand Discussionsupporting

confidence: 88%

In situ degradability of dry matter and fibrous fraction of sorghum silage

Costa

Pires

Moura

et al. 2016

Acta Sci. Anim. Sci.

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This study aimed to evaluate in situ degradability and degradation kinetics of DM, NDF and ADF of silage, with or without tannin in the grains. Two isogenic lines of grain sorghum (CMS-XS 114 with tannin and CMS-XS 165 without tannin) and two sorghum hybrids (BR-700 dual purpose with tannin and BR-601 forage without tannin) were ensiled; dried and ground silage samples were placed in nylon bags and introduced through the fistulas. After incubation for 6, 12, 24, 48, 72 and 96 hours, bags were taken for subsequent analysis of fibrous fractions. The experimental design was completely randomized with 4 replicates and 4 treatments and means compared by Tukey's test at 5% probability. As for the DM degradation rate, silage of CMS-XS 165 without tannin was superior. Silages of genotypes BR 700 and CMS-XS 114 with tannin showed the highest values of indigestible ADF (59.54 and 43.09%). Regarding the NDF, the potential degradation of silage of CMS-XS165 line without tannin was superior. Tannin can reduce ruminal degradability of the dry matter and fibrous fractions.Degrabilidade in situ da matéria seca e fração fibrosa da silagem de sorgo RESUMO. Objetivou-se avaliar a degradabilidade in situ e a cinética de degradação da MS, FDN e FDA das silagens, com presença e ausência de tanino nos grãos. Foram utilizadas, duas linhagens isogênicas de sorgo granífero (CMS-XS 114 com tanino e CMS-XS 165 sem tanino) e dois híbridos de sorgo (BR-700 duplo propósito com tanino e BR-601 forrageiro sem tanino). Amostras de silagens secas e moídas foram colocadas em sacos de náilon e introduzidas nas fístulas dos bovinos. Após períodos de incubação de 6, 12, 24, 48, 72 e 96 h, os sacos foram removidos para análises posteriores das frações fibrosas. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições e quatro tratamentos e as médias comparadas pelo teste de Tukey em nível de 5% de significância. Quanto à taxa de degradação da MS, a silagem da linhagem CM-SXS 165 sem tanino foi superior. As silagens dos genótipos BR 700 e CMS-XS 114 com tanino apresentaram os maiores valores de fração indigestível da fração FDA (59,54 e 43,09%). Para a FDN, observou-se que o potencial de degradação da silagem da linhagem CMS-XS 165 sem tanino foi superior. A presença do tanino pode reduzir a degradabilidade ruminal, da matéria seca e das frações fibrosas.Palavras-chave: alimento conservado, forragem, tanino, valor nutricional.License information: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Ŷ =35.8463 (1-e 0.04*t ); R 2 = 0.9970 Ŷ = 71.5607 (1-e 0.01*t ); R 2 = 0.9780 Ŷ = 50.0286 (1-e 0.02*t ); R 2 = 0.9750 Ŷ = 59.4826 (1-e 0.02*t ); R 2 = 0.9940

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Section: Resultsand Discussionsupporting

confidence: 88%

In situ degradability of dry matter and fibrous fraction of sorghum silage

Costa

Pires

Moura

et al. 2016

Acta Sci. Anim. Sci.

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“…Some authors have not reported in their studies significant differences in fermentation characteristics among the maturation stages (Molina et al, 2002, Araújo et al, 2007. Faria Júnior et al (2010), however, evaluated hybrid BRS610 in seven different maturity stages using the gas production technique, and concluded that the quality of silage was satisfactory, especially for the grains at mealy stage.…”

Section: Resultsmentioning

confidence: 99%

Agronomic divergence of sorghum hybrids for silage yield in the semiarid region of Paraiba

et al. 2011

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-The objective of this study was to evaluate the agronomic divergence of 25 sorghum hybrids (Sorghum bicolor L. Moench) in the semiarid region of Paraiba. A randomized block design with three replications was used for evaluation of plant height (PH), total natural matter production (TNMP) and total dry matter production (TDMP) and the percentage of components of DM (panicle, leaf blade, stem and dead matter) of the following hybrids: 866005, 866019, 866033, 866034, 866035, 866036, 866037, 866040, 866041, 866042, 866043, 866044, 870025, 870031, 870035, 870041, 870051, 870067, 870081, 870085, 870095, 1F305, BRS 610, Volumax, and XBS60329. Hybrid 1F305, followed by hybrid 866034, presented the highest average PH. There was a range from 7.679 to 20.948 kg/ha (average of 13,799 kg/ha) for TDMP. Hybrids 1F305, BRS 610 and Volumax presented less potential, and hybrids 866,041 and 866,042 were the most productive. Based on cluster analysis and subjective cut in 50% of dissimilarity, it was possible to establish four hierarchical groups, from which two stood out concerning productive characteristics. The group formed by hybrids Volumax, BRS 610, and XBS60329 presented lower averages for yield and lower percentage of panicle. Hybrids 866041 and 866042 show a higher total dry matter production, with values around 20,000 kg/ha.

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“…O estádio de maturação interfere sobre o teor de matéria seca da silagem de sorgo, ressaltando a importância desta fração como indicador do momento do corte das plantas para a produção de silagem. Isso repercute sobre a fermentação e a estabilidade aeróbia da silagem (9) . Com o avanço da idade, ocorreu redução linear no teor de PB de 0,12; 0,08 e 0,16 unidade percentual a cada dia após a semeadura nas silagens de sorgo, sorgo+capim e capim-piatã, respectivamente.…”

Section: Resultsunclassified

Valor Nutritivo De Silagem De Capim-Piatã Em Monocultivo E Em Consórcio Com Sorgo De Corte E Pastejo

et al. 2016

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ResumoObjetivou-se avaliar a influência da idade de corte no valor nutritivo de silagem de capim-piatã em monocultivo e em consórcio com sorgo. Utilizou-se o delineamento em blocos casualizados com quatro repetições. Os tratamentos foram dispostos em esquema de parcelas subdivididas, como parcelas sistemas (capim-piatã; sorgo de corte e pastejo e consórcio) e como subparcelas as idades de corte (70, 90 e 110 dias após a semeadura). Os minissilos foram abertos aos 46 dias, avaliando-se na silagem os teores de proteína bruta (PB), fibra em detergente ácido (FDA), fibra em detergente neutro (FDN), nutrientes digestíveis totais (NDT), nitrogênio amoniacal, lignina e pH. Com o avanço da idade, ocorreu redução linear no teor de PB de 0,12; 0,08 e 0,16 unidades percentuais a cada dia após a semeadura nas silagens de sorgo, sorgo+capim e capim-piatã, respectivamente. Verificouse aumento linear no valor de pH da silagem de sorgo + capim, em função do avanço na idade de 0,03 unidade a cada dia após a semeadura. Nas silagens de sorgo e de capim em monocultivo, o pH apresentou valores médios de 4,63 e de 5,20, respectivamente. Os sistemas com sorgo apresentam potencial para produção de silagem de boa qualidade aos 70 dias de idade. Palavras-chave: gramíneas tropicais; idade de corte; minissilo; silagem. AbstractThe objective of this study was to evaluate the influence of the time of cutting on the nutritive value of Piatã silage grass in monocrop and intercropping with sorghum for cutting and grazing. We used a randomized block design with four replications. Treatments were arranged in a split plot design, with systems as plots (Piata grass, sorghum for cutting and grazing, and intercropping), cutting ages as sublots (70, 90, and 110 days after sowing). The minisilos were opened at 46 days to evaluate silage crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN), ammonia nitrogen, lignin, and pH. We observed significant interaction between system and age on the variables CP, ADF, NDF, lignin and pH. With the advancement of age, there was a linear reduction in crude protein content of 0.12, 0.08, and 0.16 percentage units for each day after sowing in sorghum silage, sorghum grass and grass + Piata, respectively. There was a linear

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Qualidade das silagens de três híbridos de sorgo ensilados em cinco diferentes estádios de maturação

Cited by 17 publications

References 4 publications

<b> <i>In situ</i> degradability of dry matter and fibrous fraction of sorghum silage

<b> <i>In situ</i> degradability of dry matter and fibrous fraction of sorghum silage

Agronomic divergence of sorghum hybrids for silage yield in the semiarid region of Paraiba

Valor Nutritivo De Silagem De Capim-Piatã Em Monocultivo E Em Consórcio Com Sorgo De Corte E Pastejo

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