Avaliação laboratorial de compostos fibrosos em alimentos e fezes bovinas sob diferentes ambientes físicos

Gomes, Daiany Íris; Detmann, Edênio; Valente, Tiago Neves Pereira; Filho, Sebastião de Campos Valadares; Queiróz, Augusto César de

doi:10.1590/s0102-09352011000200038

Cited by 5 publications

(7 citation statements)

References 3 publications

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“…The negative correlations between lignin and the pdNDF fraction for forages corroborate this statement, implying a negative regression coefficient in equation (4.13). Although evidence points to stronger correlations between the potential degradation of the tropical forage NDF and lignin analyzed by oxidation in permanganate (Gomes et al, 2011b), the set of samples assessed here showed a better association based on lignin contents assessed by the hydrolysis in sulfuric acid (Table 4.3). Thus the analysis methods were modified compared to the second edition of the BR-CORTE System (Table 4.2) and the recommendation of the method by oxidation in permanganate was removed.…”

Section: Discussion Of the Main Characteristics And Modifications To ...mentioning

confidence: 62%

“…The NDF and ADF contents should be analyzed using filtering crucibles. For both cases, the use of filter bags should be regarded with caution because inaccuracies in the NDF contents have been observed (Gomes et al, 2011a;Barbosa et al, 2015). Consequent adaptations are also demanded for the analyses of NDIP, ADIP, neutral detergent insoluble ash (NDIA), and lignin.…”

Section: Recommended Chemical Analysis Methodsmentioning

confidence: 99%

“…The extractor must function with a pressurized environment. Equipment adapted for use in atmospheric pressure leads to obtaining biased data (Gomes et al, 2011a).…”

Section: Recommended Chemical Analysis Methodsmentioning

confidence: 99%

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Prediction of the energy value of cattle diets based on the chemical composition of feeds

Edenio¹,

Silva²,

Campos³

et al. 2023

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

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The chemical composition of a feed/diet is the main determinant of its ability to supply nutrients to meet the demands for animal maintenance and production, especially regarding energy supply, which is obtained through digesting and metabolizing the organic components of feeds. Feed composition tables are reliable because they provide exact mean values for energy concentrations. However, there are variations in field conditions that cannot be properly contemplated by data tabulation. Thus, the use of chemical composition to predict the ability of a feed to supply energy can facilitate the work of nutritionists when formulating diets in specific situations, so they can be more exact and appropriate for each productive situation.

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Section: Discussion Of the Main Characteristics And Modifications To ...mentioning

confidence: 62%

Section: Recommended Chemical Analysis Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Prediction of the energy value of cattle diets based on the chemical composition of feeds

Edenio¹,

Silva²,

Campos³

et al. 2023

Nutrient Requirements of Zebu and Crossbred Cattle - BR-CORTE

View full text Add to dashboard Cite

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“…As análises de FDN e FDA devem ser realizadas utlizandose cadinhos filtrantes. Para ambos os casos, o uso de filter bags deve vista com cautela devido à observação de vícios sobre os teores de FDN, principalmente (Gomes et al, 2011a;Barbosa et al, 2015). Adaptações consequentes são projetadas para as análises de PIDN, PIDA, cinzas insolúveis em detergente neutro (CIDN) e lignina.…”

Section: Sistema Somativo Para Ndt E Conversão Em Energia Digestível ...unclassified

Predição do valor energético de dietas para bovinos a partir da composição química dos alimentos

Edenio,

Tadeu Eder da,

Sebastião de Campos

et al. 2023

Exigências Nutricionais De Zebuínos Puros E Cruzados - BR-CORTE

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“…In all laboratories the extraction with detergent was performed on equipment with pressurized environment, which is recommended in analysis of fibrous compounds using filter bags (GOMES et al, 2011). However, the binomial suggested for this type of extraction (100ºC/1 hour) (PELL; SCOFIELD, 1993) was only used in three laboratories (Table 6).…”

Section: Rs Ij Hr Rsmentioning

confidence: 99%

Collaborative study to evaluate the indigestible neutral detergent fiber and indigestible acid detergent fiber contents in feeds by in situ procedure

Souza

Detmann

Rocha

et al. 2016

SCA

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The objective of this collaborative study was to evaluate the indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) content in feeds in six laboratories from institutions linked to the National Institute of Science and Technology in Animal Science (INCT-CA). Six feeds were evaluated: signal grass hay, sugarcane, corn silage, soybean meal, corn and citrus pulp. Estimated levels of iNDF and iADF proved to be dependent on the laboratory in which the analysis was performed. It was found that differences between laboratories ranged from 2.40 percentage points for soybean meal to 8.05 percentage points for sugarcane for iNDF analysis and from 1.79 percentage points for corn to 10.06 percentage points for hay for iADF analysis. It was observed in the individual evaluation of each material that total random variation of the results between laboratories ranged from 88.75 to 96.77% and 88.75 to 98.40% for iNDF and iADF analysis, respectively. The iNDF and iADF levels are dependent on the interaction effect between the evaluated material and laboratory and have low reproducibility; this may be a consequence of the differences between the methods practiced by each laboratory, demonstrating lack of standardization of procedures used by the laboratories. Key words: Analytical methods. Feed analysis. Indigestible fiber. Repeatability. Reproducibility. ResumoObjetivou-se conduzir estudo colaborativo para avaliação dos teores de fibra em detergente neutro indigestível (FDNi) e fibra em detergente ácido indigestível (FDAi) em alimentos em seis laboratórios de instituições integrantes do Instituto Nacional de Ciência e Tecnologia de Ciência Animal (INCT-CA). Avaliaram-se seis alimentos: feno de capim-braquiária, cana-de-açúcar, silagem de milho, farelo de soja, milho grão e polpa cítrica. Os teores estimados de FDNi e FDAi se mostraram dependentes do laboratório em que a análise foi realizada. Verificou-se que as diferenças entre laboratórios variaram de 2,40 pontos percentuais para o farelo de soja a 8,05 pontos percentuais para a cana-de-açúcar para

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Avaliação laboratorial de compostos fibrosos em alimentos e fezes bovinas sob diferentes ambientes físicos

Cited by 5 publications

References 3 publications

Prediction of the energy value of cattle diets based on the chemical composition of feeds

Prediction of the energy value of cattle diets based on the chemical composition of feeds

Predição do valor energético de dietas para bovinos a partir da composição química dos alimentos

Collaborative study to evaluate the indigestible neutral detergent fiber and indigestible acid detergent fiber contents in feeds by in situ procedure

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