Effect of row spacing and maturity at harvest on the fermentative profile, aerobic stability, and nutritional characteristics of biomass sorghum (BRS 716) silage in the semiarid region of Brazil

Queiroz, Fausto Expedito de; Júnior, Vicente Ribeiro Rocha; Monção, Flávio Pinto; Rigueira, João Paulo Sampaio; Parrella, R. A. da C.; Rufino, Leidy Darmony de Almeida; Santos, Alexandre Soares dos; Cordeiro, Matheus Wilson Silva

doi:10.37496/rbz5020200254

Cited by 10 publications

(11 citation statements)

References 20 publications

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“…There was no difference between strategies for NDF content in the pre-grazing period. Both NDF contents were above the minimum required of 55-60% in forage-based diets (Van Soest, 1994;Monção et al, 2019;2020;Queiroz e al., 2021). The pre-grazing ADF and lignin contents, and post-grazing NDF and ADF contents were 5.99; 15.91; 4.37 and 6.44% higher in LI strategy than in HI, respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of grazing management strategies on the yield and nutritional value of Marandu grass in the semiarid of Brazil

Araújo

Sales

Monção

et al. 2021

Semina: Ciênc. Agrár.

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The objective of this study was to evaluate the effects of two grazing management strategies on structural, productive and nutritional parameters of Marandu grass (Urochloa brizantha cv. Marandu). A completely randomized block design with two pasture management strategies and eight replications (blocks) was used. The grazing management strategies were: (1) low intensity rotational grazing (LI), with a pre-grazing sward height of 40 cm and a post-grazing sward height of 24 cm, i.e., a defoliation intensity of 50%; (2) High intensity rotational grazing (HI), with a pre-grazing sward height of 40 cm and a post-grazing sward height of 10 cm (±70% defoliation intensity). Pastures were sampled before and after grazing for estimation of forage mass, forage accumulation rate, structural characteristics, nutritional value and dry matter intake.The LI strategy resulted in higher dry matter production than HI before (18.33%) and after grazing (49.06%), increasing pre-grazing forage density by 13.21% (P < 0.05). The production of potentially digestible dry matter was highest (P < 0.05) in LI strategy (21.3% before and 39.6% after grazing, respectively). Higher post-grazing green forage mass (45%) increased the residual crude protein in LI. The LI management strategy increased forage mass production and can be used in Marandu grass pastures.

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Section: Resultsmentioning

confidence: 99%

Effect of grazing management strategies on the yield and nutritional value of Marandu grass in the semiarid of Brazil

Araújo

Sales

Monção

et al. 2021

Semina: Ciênc. Agrár.

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“…The estimated rate of particle passage in the rumen was estimated at 5% h -1 , as suggested by the Agricultural and Food Research Council [AFRC] (1993). Detail on the fermentation profile and nutritional value of the produced silage can be found in Queiroz et al (2021).…”

Section: Methodsmentioning

confidence: 99%

“…In addition to the harvest age, the row planting spacing also affects the productivity and nutritional value of sorghum biomass (May et al, 2016). This is because the spacing between planting rows alters the plant ability to capture light, which can influence the productive, structural and nutritional characteristics of the forage (i.e., stem elongation, thick cell wall, lower concentration of soluble carbohydrates), in addition to interfering with the fermentation process (Borreani, Tabacco, Schmidt, Holmes, & Muck, 2018;Queiroz et al, 2021). There is no information in the literature on planting spacing and the best age for cutting biomass sorghum BRS 716 regarding this management.…”

Section: Introductionmentioning

confidence: 99%

Yield and nutritional value of biomass sorghum (BRS 716) managed in different row spacing and maturity at harvest in the semiarid region of Brazil

Souza¹,

Júnior²,

Monção³

et al. 2021

Semina: Ciênc. Agrár.

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The objective was to evaluate the structural, yield and nutritional characteristics of biomass sorghum BRS 716 managed in different row planting spacing and harvest age in a semiarid region of Brazil. Three row spacing (45, 70 and 90 cm; plots) and four maturity at harvest (70, 100, 130 and 160 days; subplots) were evaluated following a randomized block design in a 3 x 4 split plot arrangement, with eight blocks. The useful area was 3 x 15 m. Variation in soil fertility in the area was the blocking factor. There was interaction between row spacing and maturity at harvest (P < 0.05) on plant height (P = 0.01), dry matter yield (DMY; P < 0.01) and proportion of senescent material (P = 0.01). The DMY observed at the age of 160 days and spacing of 90 cm was 41.40% higher than the DMY at the same age and in spacings of 45 and 70 cm (mean of 21.45 t/ha). As the maturity at harvest increased, there was a reduction in the crude protein content (P < 0.01), potential degradability (P < 0.01) and effective degradability (P < 0.01) of dry matter, and the content of non-fiber carbohydrates (P < 0.01), total digestible nutrients (P < 0.01) and the readily soluble fraction (P < 0.01) of the dry matter increased. Considering the yield and nutritional characteristics of biomass sorghum BRS 716 managed in the semiarid region for silage production, the row spacing of 90 cm and the maturity at harvest of 160 days after planting are recommended.

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“…In Brazil, there is a growing need for the search for forage alternatives with high productive potential and adapted to climatic conditions, aiming at the sustainability of production systems with ruminant animals (Borges et al, 2019;Queiroz et al, 2021). In this sense, millet (Pennisetum glaucum (L.) R.…”

Section: Introductionmentioning

confidence: 99%

“…Atrazine herbicide was used to control invasive plants. Millet and BRS-716 biomass sorghum were managed and harvested 122 and 164 days after planting (Queiroz et al, 2021), respectively. The dry matter yield of millet was 10.90 t/ha and that of biomass sorghum, 36.0 t/ha.…”

Section: Introductionmentioning

confidence: 99%

Total Replacement of Millet Silage with BRS-716 Biomass Sorghum Silage in Crossbred Dairy Heifers Diets: Nutrient Intake and Digestibility, Microbial Protein Synthesis, Ingestive Behavior, and Growth Performance

Hora¹,

Júnior²,

Monção³

et al. 2021

Preprint

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This study addressed the different proportions of millet and sorghum silage biomass BRS 716 (BRS-716 silage) in the diet of crossbred heifers ½ to ¾ Holstein x Zebu on their nutrient intake, and digestibility, microbial protein synthesis, nitrogen balance, ingestive behavior, and growth performance. Five experimental diets with 0, 25/75, 50/50, 75/25, and 100% of BRS-716 silage in compared to millet silage were evaluated. The roughage: concentrate ratio in the total dry matter (DM) of the diets was 75:25. The diets were evaluated in ten heifers with an initial body weight of 264.95 ± 19.4 kg (± SEM), following the experimental design in two 5 x 5 Latin squares, simultaneously. The increase in the proportion of BRS-716 silage in the diet of crossbred dairy heifers did not change the dry matter intake (DMI), total digestible nutrients, indigestible neutral detergent fiber (iNDFI), and metabolizable energy. The means observed for DMI, and iNDFI were 7.85 kg/day, and 1.18 kg/day, respectively. For the excretion of purine derivatives, and microbial synthesis, there was no significant effect (P > 0.05), the mean microbial crude protein synthesis was 503.37 g/day. The different proportions of the BRS-716 silage, and millet silage did not change the final body weight (P = 0.89), weight gain (P = 0.08), feed efficiency (P = 0.50), and the body measurements of heifers (P > 0.05). The final body weight and average daily gain of heifers were 278.46 kg, and 0.795 kg/day, respectively. The millet silage, and BRS-716 silage in the diet of crossbred Holstein x Zebu heifers, used exclusively or combined in different proportions, allow dry matter intake, and nutrients, digestibility, nitrogen balance, microbial crude protein synthesis, ingestive behavior, and performance similar body.

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Effect of row spacing and maturity at harvest on the fermentative profile, aerobic stability, and nutritional characteristics of biomass sorghum (BRS 716) silage in the semiarid region of Brazil

Cited by 10 publications

References 20 publications

Effect of grazing management strategies on the yield and nutritional value of Marandu grass in the semiarid of Brazil

Effect of grazing management strategies on the yield and nutritional value of Marandu grass in the semiarid of Brazil

Yield and nutritional value of biomass sorghum (BRS 716) managed in different row spacing and maturity at harvest in the semiarid region of Brazil

Total Replacement of Millet Silage with BRS-716 Biomass Sorghum Silage in Crossbred Dairy Heifers Diets: Nutrient Intake and Digestibility, Microbial Protein Synthesis, Ingestive Behavior, and Growth Performance

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