Nutritional potential of forage species found in Brazilian Semiarid region

Santos, Kelly Cristina dos; Magalhães, André Luíz Rodrigues; Silva, D.K.A.; Araújo, Gherman Garcia Leal de; Fagundes, Gisele Maria; Ybarra, N.G.; Abdalla, Adibe Luiz

doi:10.1016/j.livsci.2016.12.002

Cited by 32 publications

(26 citation statements)

References 24 publications

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“…This result is likely related to the increasing lignin content observed with the increasing levels of the legume added, since lignin content is a limiting factor for the degradability of the protein in the rumen that reduces the speed at which microorganisms degrade the material (JUNG; ALLEN, 1995). By contrast, this lower rate of degradation may also be associated with the elevated concentration of slowly degradable protein in Leucaena that reduces the degradability of the material, as was reported by Santos et al (2017). Effective degradability decreased as the rate of passage was increased, which is explained by the shorter duration for which the microorganisms remained adhered to the material inside the rumen (ØRSKOV, 1988).…”

Section: Variablesmentioning

confidence: 73%

Nutritional composition of 'Ponta Negra' forage sorghum silage enriched with dried Leucaena leucocephala forage

Costa

Rodrigues

Araújo

et al. 2019

SCA

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he aim of this study was to evaluate fermentation and chemical characteristics and the in situ degradability of sorghum silages enriched with dried Leucaena. The experiment was conducted as completely randomized design with four treatments (0 - control silage, silage without leucaena; 10.0, 20.0, or 30.0% inclusion of Leucaena) and five replicates, totaling 20 experimental units. The inclusion levels of leucaena influenced (P 0.05), with all silages having values above 90%. Gas loss decreased (P < 0.05) as the level of leucine increased in sorghum silage. A linear increase was observed for dry matter (P ? 0.0001) and crude protein (P = 0.0008) contents in response to Leucaena inclusion. There was a linear (P < 0.05) linear effect on neutral detergent fiber, hemicellulose and acid detergent fiber. As leucaena inclusion levels increased, for each 1% inclusion a reduction of 0.179 was observed; 0.059 and 0.119% for the values of neutral detergent fiber, hemicellulose and acid detergent fiber respectively. The inclusion of leucaena influenced (P < 0.05) the increase of silage lignin levels, probably due to the higher lignin content of the legume. The soluble fraction (a) of the silages increased along with the Leucaena inclusion levels, with highest values observed at the inclusion of 20 and 30% of the legume, respectively. Potential degradation (A) increased linearly with the levels of Leucaena added to the silage; the highest value for this variable was observed at 30% inclusion. Effective degradability (ED) increased up to the inclusion level of 20% (46.77%). Degradation rate (c) decreased markedly with the use of 30% Leucaena. The use of the forage part of Leucaena dried for three hours leads to reduced gas production, increased dry matter and crude protein contents, and decreased fiber contents. The degradability of dry matter increases up to the inclusion level of 20%.

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Section: Variablesmentioning

confidence: 73%

Nutritional composition of 'Ponta Negra' forage sorghum silage enriched with dried Leucaena leucocephala forage

Costa

Rodrigues

Araújo

et al. 2019

SCA

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“…However, the digestibilities of these analytical fractions were higher (p > 0.05) in the MH diet than in the TH. The TCH and NFC digestibilities were higher in the MH diet than in TH, probably due to the prevalence of A+B1 carbohydrates fraction in maniçoba hay (Santos et al, 2017) when compared to Tifton 85 (Muniz et al, 2011).…”

Section: Resultsmentioning

confidence: 90%

Maniçoba hay or silage replaces Tifton 85 hay in spineless cactus diets for sheep

Maciel

Carvalho

Batista

et al. 2018

Acta Sci. Anim. Sci.

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The aim of this study was to evaluate the replacement of Tifton 85 hay (Cynodon spp.) by maniçoba hay or silage (Manihot glaziovii Muell. Arg) on sheep intake and performance. Twenty-four male Santa Ines animals were used, with initial body weight of 19.77 ± 1.95 kg and average age of 160 days. The animals were distributed in three treatments (Tifton 85 hay-TH, Maniçoba hay-MH and Maniçoba silage-MS), arranged in a randomized blocks design, with 8 replicates per treatment. The feedlot period lasted for 71 days. The means of the variables were tested by Tukey’s test at 5% probability. Sheep fed MH presented higher dry matter intake (p > 0.05) than those fed TH (1.17 kg day-1 vs 1.06 kg day-1). Neutral detergent fiber intake was higher (p > 0.05) for MH-fed sheep (0.394 kg day-1) when compared to MS (0.340 kg day-1). The digestibility of total carbohydrates was higher (p > 0.05) for MH diet (0.71 g kg-1) than TH (0.67 g kg-1). The average daily gain and body weight at slaughter did not differ (p > 0.05) among treatments. Maniçoba hay or silage can replace Tifton 85 hay in sheep diets.

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“…There are several options of forage resources to be used in the strategic reserve of farms in the Brazilian semiarid region, among them species such as leucaena (Leucaena leucocephala), pornunça (Manihot sp. ), and gliricidia (Gliricidia sepium), standing out by a forage production potential that can overcome 10,000 kg DM/ha/year and the protein content, which in most situations is higher than 20% DM (BURNEY et al, 2014;ALVES et al, 2015;LEÃO et al, 2017;SANTOS et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Quality of leucaena, gliricidia, and pornunça silages with different old man saltbush levels

Voltolini

Belem

Araújo

et al. 2019

SCA

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This study aimed to evaluate the quality of leucaena, gliricidia, and pornunça silages with different levels of old man saltbush inclusion in their composition. A completely randomized design was used with five levels of old man saltbush (Atriplex nummularia) inclusion (0, 25, 50, 75, and 100%) in leucaena (Leucaena leucocephala), gliricidia (Gliricidia sepium), and pornunça (Manihot sp.) silages, with 5 replications per treatment, totaling 75 experimental mini-silos maintained in a covered shed and free of opportunistic animals. Silos were opened after 100 days of ensilage, and the silage of the first 15 cm of their ends was discarded. The remaining material was homogenized and sampled for determining the bromatological composition, in vitro digestibility, and fermentation profile. Old man saltbush inclusion levels in leucaena silages promoted a negative linear effect for dry matter, organic matter, crude protein, ethereal extract, pH, and ammoniacal nitrogen, while a positive linear effect was found for mineral matter, in vitro dry matter digestibility, total carbohydrates, non-fibrous carbohydrates, and propionic acid (P < 0.05). This silage also had a quadratic effect for lactic acid. Gliricidia silages showed a positive linear behavior for dry matter, mineral matter, and total carbohydrates, whereas organic matter, crude protein, and ethereal extract presented a negative linear behavior (P < 0.05). The contents of organic lactic, acetic, and propionic acids showed a quadratic effect for gliricidia silage as old man saltbush levels increased (P < 0.05). Regarding pornunça silage, dry matter, mineral matter, total carbohydrates, propionic acid, and butyric acid presented a linear increasing behavior, while organic matter, crude protein, ethereal extract, and non-fibrous carbohydrates presented a linear decreasing behavior (P < 0.05). Lactic acid and acetic acid concentrations for pornunça silage showed a quadratic behavior according to the increasing old man saltbush inclusion levels (P < 0.05). The highest contribution of old man saltbush in the silages promoted changes in the profile of organic acids, allowing an improvement in silage quality, favoring lactic fermentation rather than acetic fermentation. Butyric acid contents were low for all treatments and indicated the control of undesirable fermentation processes. These results indicate that old man saltbush inclusion in silage composition may contribute to bromatological composition and fermentation process of the studied silages.

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Nutritional potential of forage species found in Brazilian Semiarid region

Cited by 32 publications

References 24 publications

Nutritional composition of 'Ponta Negra' forage sorghum silage enriched with dried Leucaena leucocephala forage

Nutritional composition of 'Ponta Negra' forage sorghum silage enriched with dried Leucaena leucocephala forage

Maniçoba hay or silage replaces Tifton 85 hay in spineless cactus diets for sheep

Quality of leucaena, gliricidia, and pornunça silages with different old man saltbush levels

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