Perfil químico da parede celular e suas implicações na digestibilidade de Brachiaria brizantha e Brachiaria humidicola

Brito, Cláudio José Freixeiro Alves de; Rodella, Roberto Antônio; Deschamps, Fernando

doi:10.1590/s1516-35982003000800005

Cited by 26 publications

(15 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, other traits such as total dry matter (TDM) yield and seed dormancy could also be improved (Euclides et al 2010). The in situ digestibility of neutral detergent fiber of the stem and dry matter digestibility of the whole plant of B. brizantha were higher than that of B. humidicola (Brito et al 2003). These authors also reported a higher crude protein content of B. brizantha compared to B. humidicola.…”

Section: Introductionmentioning

confidence: 98%

Estimation of genetic parameters and selection of Brachiaria humidicola progenies using a selection index

Figueiredo

Nunes

Valle

2012

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 98%

Estimation of genetic parameters and selection of Brachiaria humidicola progenies using a selection index

Figueiredo

Nunes

Valle

2012

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Entretanto, para plantas forrageiras, especialmente gramíneas, tais trabalhos são numerosos, o que possibilita determinar o valor nutricional das plantas, conforme Rodella et al (1982Rodella et al ( , 1984, Akin (1989), Wilson (1993), Jung & Allen (1995), Brito et al (1997aBrito et al ( , 1997bBrito et al ( , 1999Brito et al ( , 2003Brito et al ( , 2004, Ventrella et al (1997) e Brito & Rodella (2002).…”

Section: Introductionunclassified

Características morfo-anatômicas e bromatológicas de folhas de amoreira em relação às preferências do bicho-da-seda

Okamoto¹,

Rodella

2006

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi avaliar, quantitativamente, as características morfo-anatômicas e bromatológicas das folhas de dez cultivares de amoreira, e estabelecer as relações de preferência do bicho-daseda, por essas cultivares. Foram coletadas as folhas superior (5 a ) e mediana (15 a ) da planta, contadas a partir do ápice. As cultivares foram comparadas pelos métodos estatísticos multivariados de análise de agrupamento e análise de componentes principais. As cultivares Korin, Calabresa, IZ 5/2 e IZ 15/7 foram consideradas as mais recomendáveis para a alimentação das lagartas do bicho-da-seda, pois apresentaram valores altos de porcentagem de folha consumida, atribuídos à ocorrência de características desejáveis nas folhas, tais como menor teor de fibra bruta, menor quantidade de idioblastos de cistólito e de mucilagem, menor proporção de epiderme e maior de parênquima, comparativamente, às outras cultivares estudadas. As cultivares IZ 13/6 e IZ 57/2 foram consideradas as menos recomendáveis. As demais cultivares comportaram-se como intermediárias na preferência do bicho-da-seda.Termos para indexação: análise quantitativa, cultivares de amoreira, Morus, sericicultura. Mulberry leaf morphological, anatomical and bromatological characteristics in relation to silkworm preferencesAbstract -The objective of this work was to evaluate quantitatively the morphological, anatomical and bromatological characteristics of leaves of ten mulberry cultivars, and to establish the preferences shown by the silkworm. The upper (5 th ) and median (15 th ) leaves were collected taking branch top into account. In order to compare cultivars, multivariate statistic methods of cluster analysis and principal component analysis were used. The cultivars Korin, Calabresa, IZ 5/2 and IZ 15/7 were considered as the most appropriate to feed silkworms, since they presented high percentage values of eaten leaves, due to certain characteristics such as lower crude fiber contents, lower quantity of cystolith and mucilage idioblasts, lower proportions of epidermis and higher quantities of parenchyma, in relation to the other studied cultivars. Cultivars IZ 13/6 and IZ 57/2 were considered as less recommendable. The other cultivars formed an intermediate group, in relation to silkworm preferences.Index terms: quantitative analysis, mulberry cultivars, Morus, sericulture. IntroduçãoExistem 35 espécies de amoreira, distribuídas nas diversas regiões do globo terrestre, das quais Morus alba L., M. lhou Koidz e M. bombycis Koidz são as mais freqüentes (Fonseca & Fonseca, 1988).A exploração da cultura da amoreira visa, principalmente, sua utilização na nutrição das lagartas do bicho-da-seda (Bombyx mori L.), que se alimentam exclusivamente de suas folhas. Hazama (1968) caracterizou as folhas da amoreira, por meio de medidas do comprimento, largura e espessura.A espessura da folha contribui consideravelmente na manutenção da turgescência, nos períodos compreendidos entre a colheita dos ramos e o armazenamento no depósito de folhas, e durante o...

show abstract

“…The majority of pcoumaric acid are esterified to lignin whereas ferulic acid tends to associate with the hemicellulose fraction and may form a cross-linkage between lignin and hemicellulose [3,4]. Due to such associations, several studies have shown that these compounds potentially affect the digestibility of forages by the rumen, thereby compromising livestock performance [3,[5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Use of Ultrasound Bath in the Extraction and Quantification of Ester-Linked Phenolic Acids in Tropical Forages

Santos¹,

Vitor²,

Carneiro³

et al. 2011

AJAC

View full text Add to dashboard Cite

A method was developed for the analysis of ester-linked phenolic acids in forage samples using extraction by an ultrasound-assisted treatment and quantification by HPLC with a UV-VIS detector. A reversed-phase C18 column was used for developing the method and the optimal condition was established with isocratic elution using acetonitrile/methanol/H 3 PO 4 pH 2.08 (13:12.5:74.5) as the mobile phase. To reduce the time of sample processing, the extraction of ester-linked phenolic acids was studied using ultrasound bath and the results were then compared with those from an extraction usual using alkaline hydrolysis (20˚C for 24 h). The method was valued through external and internal calibration. Internal calibration using o-coumaric acid as internal standard and m-coumaric acid as surrogate internal standard showed better results. The detection limits were of 0.09 and 0.04 mg·L -1 for p-coumaric and ferulic acids, respectively. The proposed method showed a good linear dynamic range (3.00 -30.00 mg·L -1 ) for the analytes. The usefulness of the method-ology was demonstrated by addition-recovery experiments using forage samples and values were in the 83 to 99% range. The extraction of ester-linked phenolic acids by 120 minutes of ultrasound bath was faster and more reproducible than alkaline hydrolysis (20˚C for 24 h).

show abstract

Perfil químico da parede celular e suas implicações na digestibilidade de Brachiaria brizantha e Brachiaria humidicola

Cited by 26 publications

References 28 publications

Estimation of genetic parameters and selection of Brachiaria humidicola progenies using a selection index

Estimation of genetic parameters and selection of Brachiaria humidicola progenies using a selection index

Características morfo-anatômicas e bromatológicas de folhas de amoreira em relação às preferências do bicho-da-seda

Use of Ultrasound Bath in the Extraction and Quantification of Ester-Linked Phenolic Acids in Tropical Forages

Contact Info

Product

Resources

About