Cinética da fermentação in vitro do capim-Marandu em diferentes idades de corte

Sá, J. F. de; Pedreira, Márcio dos Santos; Silva, Fabyano Fonseca e; Figueiredo, Mauro Pereira de; Rebouças, Gesiane Moura Neves; Souza, Danilo Ribeiro de

doi:10.4025/actascianimsci.v33i3.9462

Cited by 14 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Each 1% of added starch promoted a linear increase in total gas production of 0.2254 ml and a decrease in lag time of 0.2451 h. Higher gas production occurred with greater nutrient availability (NFC) for rumen microorganisms in vitro (WASCHECK et al, 2010) as the added starch replaced the forage, which has a high NDF. Similar results were found by Sá et al (2011), where the higher NFC amount of marandu palisadegrass promoted higher in vitro gas production.…”

Section: Resultssupporting

confidence: 78%

In vitro kinetic parameters of marandu palisadegrass associated with nonfiber carbohydrates

Carvalho

Cabral

Paula

et al. 2016

SCA

View full text Add to dashboard Cite

This study aimed to evaluate the effects of different levels (0, 10, 20 and 30%) of starch or glucose associated with marandu palisadegrass (Urochloa brizantha cv. Marandu) on its kinetic parameters and fiber digestion by the in vitro gas production technique. The experiment was arranged in a completely randomized design, with four treatments and six replications for each energy source. The marandu palisadegrass associated with nonfiber carbohydrate levels was incubated in 120 ml bottles, with McDougall buffer and rumen fluid from two rumen-cannulated sheep. Readings were taken of gas pressure within the bottle, and two vials were removed at 24, 48 and 96 hours (h) to assess residual neutral detergent fiber (NDF). The one-pool logistic model was used to estimate the kinetic parameters for pure forage and forage associated with starch, however it was necessary to use the two-pools model when glucose was added. Each 1% of added starch promoted a linear increase in total gas production of 0.2254 ml and a decrease in lag time of 0.2451 h, but did not affect the digestion rate. Glucose levels had a quadratic effect on digestion rate and lag time, with a minimum estimated value for digestion rate of 0.01689 h-1 at a glucose level of 10.07% and a minimum lag time of zero. Starch levels caused a linear reduction in NDF digestion of 0.296% only at 24 h, while glucose levels linearly reduced the NDF digestion in all evaluated times (0.3269, 0.4171 and 0.2340% at 24, 48 and 96 h, respectively). Glucose levels promoted different effects on the in vitro gas production kinetic parameters of marandu palisadegrass compared to starch supplementation, highlighting the prolonged negative effects on NDF digestion.

show abstract

Section: Resultssupporting

confidence: 78%

In vitro kinetic parameters of marandu palisadegrass associated with nonfiber carbohydrates

Carvalho

Cabral

Paula

et al. 2016

SCA

View full text Add to dashboard Cite

show abstract

“…In addition, a high "a" fraction rate in these leguminous plants can show the presence of higher amounts of soluble carbohydrates such as starch and monosaccharides, which are present in plant cells. Notably, the soluble "a" fraction can contribute to ruminal synthesis of volatile fatty acids, considered the main source of energy for ruminants (SÁ et al, 2011). Stylosanthes aged 55 days presented a lower soluble "a" fraction than the other studied plants (13.26%).…”

Section: Resultsmentioning

confidence: 86%

Ruminal degradability of tropical leguminous plants from eastern Amazonia

Braga

Filho²,

Silva

et al. 2018

SCA

View full text Add to dashboard Cite

The aim of this study was to evaluate ruminal degradation of dry matter (DM), crude protein (CP), and neutral detergent fiber (NDF) of Cratylia argentea, Flemingia macrophylla (Willd.) Merrill, and Stylosanthes guianensis ‘Campo Grande’ (EMBRAPA), aged 55 and 75 days, in sheep with rumen cannulas, using the in-situ technique. A factorial design of 3 leguminous plants × 2 ages × 6 incubation times was used, totaling 36 experimental units. The experimental period included 14 days for adaptation to diet and 5 days for data collection. Cratylia at both ages and Flemingia aged 55 days showed the highest “a” fraction values for DM degradability. Cratylia aged 55 days and Stylosanthes at both ages showed the highest “a” fraction values for CP. The highest “b” fraction value for DM was 51.27% for Stylosanthes aged 55 days. This rate was lower for the other leguminous plants, especially for Flemingia at both ages. The “b” fraction values for NDF are considered low for Flemingia, what may be the result of lower ruminal degradation. The highest “c” fraction degradation rate for DM was observed in all leguminous plants studied aged 75 days. The highest “c” fraction value for CP was 14.84% for Stylosanthes aged 75 days. The highest Kd fraction values for DM, NDF, and CP were found in Flemingia. Cratylia, and Stylosanthes aged 75 days presented higher effective degradability (ED) values for DM at 2 and 5%/hour compared to Flemingia at both ages. Cratylia and Stylosanthes had the highest ED values for NDF, regardless of their passage rates. Stylosanthes presented higher ED values for CP at both ages, regardless of its passage rate. The highest DM, NDF, and CP potential degradability (PD) was obtained for Cratylia and Stylosanthes, at both ages. The leguminous plants Cratylia and Stylosanthes can be recommended for use as a protein bank and supplementation for ruminants, whereas, Flemingia macrophylla should not be used as a protein supplement for ruminants, because it contains high levels of fibrous fractions.

show abstract

“…Evangelista et al (2002) studied the in situ degradability of 15 alfalfa cultivars, and found similar mean values for fraction B (38.0 to 44.4%) and higher for kd rate (0.078 to 0.124/h) and potential degradation (78.4 to 81.6%). Veloso et al (2006) Sá et al (2011) for Brachiaria brizantha (12.9 to 14.6 h), with ages ranging from 28 to 54 days, and by Campos et al (2000) for corn silage (6.2 to 9.1 h) in a period of 48 hours. The fiber fraction is directly related to most of the events involved in this parameter.…”

Section: Resultsmentioning

confidence: 99%

Nutritional divergence in genotypes of forage peanut

Ferreira

Maurício

Pereira³

et al. 2012

R. Bras. Zootec.

View full text Add to dashboard Cite

-The objective of this study was to evaluate the nutritional divergence between ten genotypes of forage peanut, based on chemical composition as well as fermentation and in vitro degradation kinetic characteristics. Treatments consisted of ten genotypes of Arachis pintoi, namely eight accessions (31135, 30333, 15121, 31828, 15598, 31534, 13251 and 31496) and two cultivars (cv. Belmonte and cv. Amarillo). The genotypes were harvested in each plot at a height of 3 cm from the ground, in 42-day intervals, during the time of heaviest rainfall. For the multivariate analysis the following variables, the following were used: crude protein, neutral detergent fiber, potential degradation in 48 hours, degradation rate of insoluble potentially degradable fraction and degradation rate of non-fibrous carbohydrate. The application of the hierarchical clustering analysis, using the Euclidian distances matrix of standardized averages allowed for the identification of five homogeneous groups. Among them, the accessions 31828, 31534, 15121 and cv. Belmonte stood out nutritionally among the remaining genotypes evaluated, depicting as promising for the utilization in ruminant feeding.

show abstract

Cinética da fermentação in vitro do capim-Marandu em diferentes idades de corte

Cited by 14 publications

References 13 publications

In vitro kinetic parameters of marandu palisadegrass associated with nonfiber carbohydrates

In vitro kinetic parameters of marandu palisadegrass associated with nonfiber carbohydrates

Ruminal degradability of tropical leguminous plants from eastern Amazonia

Nutritional divergence in genotypes of forage peanut

Contact Info

Product

Resources

About