Estimação por aproximação química dos teores de proteína indegradável insolúvel em detergente neutro em forragens tropicais

Detmann, E.; Silva, J.F.C.; Clipes, Renata Cogo; Henriques, Lara Toledo; Filho, S.C. Valadares; Queiroz, Augusto César de; Paulino, Mário Fonseca

doi:10.1590/s0102-09352010000300033

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Therefore, this approach must be utilized with caution, and it is preferable, when feasible, that the estimate of the UNDIP be obtained by biological method, i.e., through the evaluation of the residual CP of the iNDF estimated by long-term in situ procedures, followed by treatment of the sample with neutral detergent fiber for the removal of microbial debris (Clipes et al, 2010a;Detmann et al, 2010b).…”

Section: Resultsmentioning

confidence: 99%

“…According to Gomes et al (2011), none of the different methods employed at the evaluation of lignin fully meets the nutritional expectation, with significant differences in the results obtained in laboratories for all the methods applied. Stronger correlations between lignin contents and extent of the rumen degradation of the NDF have been obtained by methods distinct from the one adopted by the NRC (2001) and suggested by Detmann et al (2010a) (Traxler et al, 1998;Clipes et al, 2010b;Gomes et al, 2011). This seems to indicate that limitations intrinsic of the lignin content estimated by the method of acid hydrolysis may reduce the accuracy of estimates of the pdNDF and iNDF fractions by chemical approach.…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of models for prediction of the energy value of diets for growing cattle from the chemical composition of feeds

et al. 2012

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-The objective of this study was to estimate and evaluate the contents of apparently digestible fractions of crude protein, ether extract and non-fibrous carbohydrates, the digestible fraction of the neutral detergent fiber and the content of total digestible nutrients (TDN) from the chemical composition of feeds in growing cattle fed different diets. Fourteen F1 Red Angus × Nellore young bulls with average age and weight of 12 months and 287±36 kg were used. Animals were fed elephant grass silage, corn silage or signal grass hay, with or without supplementation of 200 g concentrate per kg of the total diet. The experiment consisted of two 13-days periods, in which the concentrate supplementation was crossed over animals. The values of digestible fractions and the TDN content observed were obtained based on total collection of feces. Several sub-models applied to the different digestible fractions were assessed and discussed. Estimates of the TDN content in the diet were produced from the combination of sub-models applied to the individual digestible fractions. The TDN content was more efficiently predicted from the sub-models proposed by Detmann et al. (2010) when biological procedures for the estimation of the undegradable fraction of the protein and the potentially degradable fraction of the neutral detergent fiber were considered.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Evaluation of models for prediction of the energy value of diets for growing cattle from the chemical composition of feeds

et al. 2012

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“…In the case of crude fiber, the foods are first submitted to digestion with diluted acid and then to digestion with diluted base (alkali). The remaining portion after the two digests is named crude fiber, then considered as the portion of the indigestible carbohydrates by the animal (Detmann et al 2010;Silva and Queiroz, 2002). As the majority of fiber sources consumed by the animals are from a vegetable source, the definition of crude fiber basically covers the fibers of vegetal origin: cellulose and alkali-insoluble lignin (Silva and Queiroz, 2002).…”

Section: Apparent Digestibility Coefficientmentioning

confidence: 99%

Apparent digestibility coefficient of chitosan foam for nile tilapia

Zadinelo

Santos

Alves

et al. 2020

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Chitosan foam can be used as a filter element for pollutants in Nile tilapia farming tanks to reduce the industrial chitin waste and value it. Another possibility is the inclusion of chitosan foam in fish feed. Therefore, this study aims at evaluating the apparent digestibility of nutrients and energy of chitosan foam for Nile tilapia. Apparent digestibility determination was carried out by the indirect fecal collection method, using chromic oxide as an inert indicator, a reference-diet and a test diet (70% reference-diet and 30% chitosan foam). Hence, 120 juveniles of Nile tilapia (50 ± 5 g) were used, divided into six replications. After the collection period, bromatological analyses of foam, diets and feces were carried out, as well as the determination of chromium concentration in feces. The coefficients of apparent digestibility concerning nutrients and energy were then calculated. Chitosan foam showed 83.7% digestible dry matter, 5.7% digestible protein, 7.9% digestible fat, 0.6% digestible ashes, 17.6% digestible crude fiber and 1021 kcal kg -1 digestible energy for juveniles of Nile tilapia. It can be concluded that chitosan foam is partially digestible for Nile tilapia and can be used mainly as a feed source of fiber and fat.

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Estimação por aproximação química dos teores de proteína indegradável insolúvel em detergente neutro em forragens tropicais

Abstract: Estimação por aproximação química dos teores de proteína indegradável insolúvel em detergente neutro em forragens tropicais [Estimation of undegradable neutral detergent insoluble protein in tropical forages by chemical approaching]

Cited by 3 publications

References 6 publications

Evaluation of models for prediction of the energy value of diets for growing cattle from the chemical composition of feeds

Evaluation of models for prediction of the energy value of diets for growing cattle from the chemical composition of feeds

Apparent digestibility coefficient of chitosan foam for nile tilapia

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