Chemical composition and in vitro ruminal digestibility of hand-plucked samples of Xaraes palisade grass fertilized with incremental levels of nitrogen

Campos, Fábio; Nicácio, D. R. O.; Sarmento, Patrícia; Cruz, Mara Cristina Pessôa da; Santos, Tony Meireles; Faria, Ana Flávia Gouveia de; Ferreira, E.; Conceição, M. R. G.; Lima, César Gonçalves de

doi:10.1016/j.anifeedsci.2015.12.013

Cited by 24 publications

(40 citation statements)

References 29 publications

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“…The evaluated species are of interest in feeding ruminants in tropical var. Xara es without N fertilization (Campos et al, 2016). It is important to note that these authors did not use sodium sulphite in NDF analysis, which can explain the lower NDF value observed in our study (Gomes et al, 2012).…”

Section: Forages Compositionmentioning

confidence: 53%

“…The evaluated species are of interest in feeding ruminants in tropical and temperate climate countries. Both CP and NDF concentrations of tropical grasses are affected by environmental and management factors (Campos et al., ; Fernandes et al., ). Pariz et al.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, the CP and NDF concentrations of PG were similar to the values of 111 and 690 g/kg DM, respectively, observed for Brachiaria brizantha var. Xaraés without N fertilization (Campos et al., ). It is important to note that these authors did not use sodium sulphite in NDF analysis, which can explain the lower NDF value observed in our study (Gomes et al., ).…”

Section: Discussionmentioning

confidence: 99%

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Effect of soya bean oil supplementation and forage type on methane production and fibre digestibility using the in vitro gas production system

Rodrigues

Ramin

Huhtanen

et al. 2017

Grass and Forage Science

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We aimed to evaluate the effect of soya bean oil (SBO) supplementation with different forages on in vitro gas production kinetics, methane (CH4) emissions and potentially digestible neutral detergent fibre (pdNDF) digestibility (IVpdNDFD). Samples of whole‐crop maize silage (MS; Zea mays), sugarcane (SC; Saccharum sp.), perennial ryegrass (RG; Lolium perenne), guinea grass (GG; Panicum maximum) and palisadegrass (PG; Brachiaria brizantha) were incubated with three concentrations of SBO (0, 30 and 60 g/kg of dry matter). The interaction between forage species and SBO inclusion affected molar proportion of acetate, acetate‐to‐propionate ratio, asymptotic gas and IVpdNDFD. Acetate‐to‐propionate ratio numerically decreased from 3.56 to 3.44 and 3.77 to 3.56 for MS and SC respectively. Soya bean oil inclusion at 60 g/kg DM decreased 21.2% and 12.9% of IVpdNDFD for MS and SC respectively. Soya bean oil increase did not affect IVpdNDFD for RG, GG and PG. Soya bean oil inclusion decreased quadratically the asymptotic gas (294–265 ml/g OM) for MS and increased linearly (275–283 ml/g OM) for GG. Lower and greater CH4 production was observed for RG and SC respectively. Methane production decreased quadratically by SBO increase. Soya bean oil inclusion linearly decreased CH4 concentration in total gas at 48 hr of incubation from 133 to 128 ml/L. In conclusion, MS and SC are more sensitive to adverse effects of SBO supplementation from 30 to 60 g/kg DM on rumen fermentation when compared to RG, GG and PG.

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Section: Forages Compositionmentioning

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Effect of soya bean oil supplementation and forage type on methane production and fibre digestibility using the in vitro gas production system

Rodrigues

Ramin

Huhtanen

et al. 2017

Grass and Forage Science

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“…In different regions of the world where forage is the main source of nutrients in the ruminant diet, the correct use of this resource is essential to ensure the sustainability of livestock systems (Campos et al., ). Forage fertilization increases the availability of nutrients in the plant, such as N (Peyraud & Astigarraga, ), since it modifies the protein profile of the forage (Alvim & Moojen, ; Ribeiro, Gomide, & Paciullo, ).…”

Section: Introductionmentioning

confidence: 99%

Effects of tannins and monensin on the modulation of in vitro ruminal fermentation and ammonia production of nitrogen‐fertilized and non‐fertilized Urochloa brizantha cv. Marandu

et al. 2019

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This study was conducted to evaluate the effects of the increasing levels of tannin supplementation—0 (control—no additive), 2, 4 and 6 mg/g of dry matter (DM)—versus monensin (0.02 mg/g DM) on in vitro ruminal fermentation of either nitrogen (N)‐fertilized or non‐fertilized Urochloa brizantha cv. Marandu. Ruminal fluid was obtained from two grazing Nellore bulls receiving 0.3% of the body weight of a supplement free of additives. The incubations were conducted for four consecutive weeks with gas production (GP) recorded up to 96 hr, whereas pH and ruminal ammonia (N‐NH3) were measured at 24 and 48 hr, and volatile fatty acids at 48 hr. Additionally, in vitro dry matter digestibility (IVDMD) and in vitro neutral detergent fiber digestibility (IVNDFD) were measured at 24, 48 and 96 hr. The crude protein (CP) contents for N‐fertilized and non‐fertilized forages were 11.77% and 7.75, respectively. There was no interaction between forage and additives (p > 0.05) for fermentation kinetic parameters. Nitrogen fertilization reduced (p < 0.05) the theoretical maximum of gas production (ml) (a), the maximum gas production rate (ml/hr) (b) and the lag time (L). The inclusion of monensin reduced (p < 0.05) b and L compared with control and inclusion of tannin. In general, the inclusion of monensin and tannins reduced (p < 0.05) the IVDMD and IVNDFD. Compared to monensin, tannin reduced (p < 0.05) the N‐NH3 and the acetate:propionate ratio. The use of N fertilization in tropical forage reduces in vitro gas production. Tannins and monensin influence the modulation of ruminal fermentation mainly by reducing neutral detergent fiber (NDF) digestibility. Tannins reduce N‐NH3 concentration regardless of the use of N fertilization of Urochloa brizantha cv. Marandu.

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“…Thus, the establishment and maintenance of more productive, better-quality pastures have been achieved through research aimed at increasing the production of forage plants from the pasture and consequently the animal yield (HU et al, 2014, MONJARDINO et al 2015, CAMPOS et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Biomass turnover in brachiaria cultivars in a tropical environment

Rezende¹,

Macedo²,

Pereira³

et al. 2017

Biosci. J.

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Chemical composition and in vitro ruminal digestibility of hand-plucked samples of Xaraes palisade grass fertilized with incremental levels of nitrogen

Cited by 24 publications

References 29 publications

Effect of soya bean oil supplementation and forage type on methane production and fibre digestibility using the in vitro gas production system

Effect of soya bean oil supplementation and forage type on methane production and fibre digestibility using the in vitro gas production system

Effects of tannins and monensin on the modulation of in vitro ruminal fermentation and ammonia production of nitrogen‐fertilized and non‐fertilized Urochloa brizantha cv. Marandu

Biomass turnover in brachiaria cultivars in a tropical environment

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