Avaliação da perda endógena de aminoácidos, em função de diferentes níveis de fibra para suínos

Pozza, Paulo César; Gomes, Paulo Cézar; Rostago, Horacio Santiago; Donzele, Juarez Lopes; Santos, Magali Soares dos; Ferreira, Rony Antonio

doi:10.1590/s1516-35982003000600010

Cited by 9 publications

(11 citation statements)

References 14 publications

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“…Methionine and cystine presented the lowest endogenous losses, as previously observed by Wilson et al (1981), with channel catfish; Yamamoto et al (1998) These results may be partially explained by the lower content of sulfur amino acids both in the mucin layer and in pancreatic secretions compared with other amino acids (Pozza et al, 2003).…”

Section: Resultssupporting

confidence: 57%

Apparent and true digestibility of protein and amino acid in feedstuffs used in Nile Tilapia feed as determined by the technique of dissection

Ribeiro¹,

Lanna²,

Bomfim³

et al. 2012

R. Bras. Zootec.

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-The objective of this study was to determine the coefficients of apparent and true digestibility of protein and amino acids of five feedstuffs (corn, wheat bran, soybean meal, corn gluten meal and fish meal) in 900 sex-reversed Nile tilapia (Oreochromis niloticus) of the Thai strain during the growth phase, with an initial weight of 315±8.45 g. A total of 750 fish were distributed according to a randomized block design (repetitions in time) into five treatments with six replicates of 25 fish each. The remaining 150 fish were fed a protein-free diet to measure endogenous protein and amino acid losses in order to determine the true digestibility of these components. Each tested diet contained a single protein source, which consisted of one of the evaluated feedstuffs. Digestibility was indirectly estimated using chromic oxide at 0.50% as marker. Digesta was collected from the last 5 cm of the distal intestine (between the ileal-rectal valve and the anus) using the dissection technique.

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Section: Resultssupporting

confidence: 57%

Apparent and true digestibility of protein and amino acid in feedstuffs used in Nile Tilapia feed as determined by the technique of dissection

Ribeiro¹,

Lanna²,

Bomfim³

et al. 2012

R. Bras. Zootec.

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“…The values for endogenous losses obtained in this study were relatively low for methionine and cystine, which can be explained partly by the low content of sulfur amino acids, both in the mucin layer and pancreatic secretions, as compared to other amino acids (Pozza et al, 2003).…”

Section: Resultscontrasting

confidence: 49%

True and apparent digestibility of protein and amino acids of feed in Nile tilapia

Ribeiro

Lanna²,

Bomfim

et al. 2011

R. Bras. Zootec.

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-It was determined in this work the coefficients of apparent and true digestibility of protein and amino acids of five feeds (corn, wheat bran, soybean meal, corn gluten meal, fish meal) in Nile tilapia. It was used 252 reverted Thai strain Nile tilapia (Oreochromis niloticus) in growth phase, with weight of 310 ± 9.68 g, distributed in experimental randomized blocks design, with five treatments, six replicates per treatment and seven fish per experimental unit. Each experimental diet contained a single source of protein, composed by the studied ingredients. An additional group of fish was fed protein-free diet for quantification of the endogenous fraction and determination of true digestibility coefficients. Digestibility was estimated by the indirect method by using chromium oxide at the concentration of 0.50% of the diet as a marker, performing fecal collection at every four hour interval by using decantation technique. Digestibilidade aparente e verdadeira de proteína e aminoácidos de alimentos em tilápia-do-nilo RESUMO -Foram determinados nesta pesquisa os coeficientes de digestibilidade aparente e verdadeira da proteína e dos aminoácidos de cinco alimentos (milho, farelo de trigo, farelo de soja, glúten de milho e farinha de peixe) em tilápias-do-nilo.Utilizaram-se 252 tilápias revertidas (Oreochromis niloticus) em fase de crescimento, da linhagem tailandesa, com peso de 310 ± 9,68 g, distribuídas em delineamento de blocos casualizados, composto de cinco tratamentos, seis repetições por tratamento e sete peixes por unidade experimental. Cada dieta experimental continha uma única fonte proteica, composta pelos ingredientes estudados. Um grupo adicional de peixes foi alimentado com dieta isenta de proteína para quantificação da fração endógena e determinação dos coeficientes de digestibilidade verdadeira. A digestibilidade foi estimada pelo método indireto, utilizando-se óxido crômico na concentração de 0,50% da dieta como indicador, efetuando-se a coleta de fezes em intervalos de 4 horas pela técnica de decantação.

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“…The values of total amino acids of CM (Table 5) were similar to those reported by Rojo et al (2001), who found values of lysine (19.6 g/kg), threonine (15.5 g/kg), tryptophan (4.6 g/kg), met+cys (16.4 g/kg), isoleucine (13.8 g/kg) and leucine (25.2 g/ kg) in the data studied with a compilation of 171 aminograms of CM.…”

Section: Resultssupporting

confidence: 86%

“…Minkowski (2002) attributed the reduction of AIDC and TIDC of CM to its high fiber content. Likewise, Pozza et al (2003) showed that the canola fiber (NDF) considerably influenced the ileal endogenous losses of nitrogen in pigs, since these compounds are not digested by intestinal enzymes.…”

Section: Resultsmentioning

confidence: 99%

Canola meal on starting pigs feeding

et al. 2015

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Three experiments were carried out to determine the nutritional values and evaluate the performance of piglets fed on canola meal. In experiment I, a digestibility assay was conducted using fourteen barrow pigs, with an initial body weight of 20.62±3.30 kg. The evaluated feedstuff was canola meal, with a level of 250 g/kg in the basal diet (corn + soybean meal-based). The experimental unit consisted of one pig, with a total of seven experimental units per diet. The values as (fed basis) of digestible (DE) and metabolizable (ME) energy of canola meal were 2,995 kcal/kg and 2,796 kcal/kg, respectively. In experiment II, ileal digestibility assays were carried out to determine the apparent and true ileal digestibility coefficient and digestible amino acids. Three crossbred pigs were used, with a BW of 38.6±1.98 kg. The treatments consisted of two diets, with a single source of protein (canola meal) and one protein-free diet (OFD). The values of digestible amino acids in canola meal were as follows: lysine: 11.8 g/kg; methionine+cystine: 9.1 g/kg; threonine: 7.9 g/kg; tryptophan: 2.4 g/kg; leucine: 15.7 g/kg; and isoleucine: 8.7 g/kg. In experiment III, 60 piglets (BW= 15.08±0.72 kg to 30.26±2.78 kg) were allotted in a completely randomized design. The treatments consisted of four diets with increasing levels of canola meal (50, 100, 150 and 200 g/kg), six replicates and experimental unit consisted of two pigs. Additionally, a control diet was formulated containing 0.0 g/kg CM. Regression analysis indicates that there was no effect (P≥0.05) of the level of canola meal inclusion on pigs performance. The performance results suggest that it is feasible to use up to 200 g/kg of canola meal in starting pigs diet, without impairing performance and the feeding cost. Key words: Digestible amino acids, digestibility, ileal cannula, protein food, performance ResumoForam conduzidos três experimentos com o objetivo de determinar o valor nutricional e avaliar o desempenho de leitões alimentados com farelo de canola (FC). No Experimento I foi conduzido um ensaio de digestibilidade total com 14 suínos mestiços de linhagem comercial, machos castrados, com 20,32±3,30 kg de PV inicial. O alimento teste foi o farelo de canola, com o nível de 250 g/kg na ração referência (milho + farelo de soja). Cada suíno constituiu uma unidade experimental, totalizando sete unidades experimentais por ração. Os valores de energia digestível (ED) e energia metabolizável (EM) na matéria natural para o FC foram 2995 kcal/kg e 2796 kcal/kg respectivamente. No Experimento II foi conduzido um ensaio para determinar os coeficientes de digestibilidade ileal aparente e verdadeira e aminoácidos digestíveis. Foram utilizados três suínos canulados com 38,6±1,98 kg de PV. Os tratamentos consistiram em duas dietas, uma dieta contendo FC como única fonte de proteína e uma dieta isenta de

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Avaliação da perda endógena de aminoácidos, em função de diferentes níveis de fibra para suínos

Cited by 9 publications

References 14 publications

Apparent and true digestibility of protein and amino acid in feedstuffs used in Nile Tilapia feed as determined by the technique of dissection

Apparent and true digestibility of protein and amino acid in feedstuffs used in Nile Tilapia feed as determined by the technique of dissection

True and apparent digestibility of protein and amino acids of feed in Nile tilapia

Canola meal on starting pigs feeding

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