Histologia Do Intestino De Tilápia Do Nilo Alimentados Com Dietas Contendo Diferentes Fontes De Proteína

Honorato, Cláucia Aparecida; Assano, Marcelo; Cruz, Claudinei da; Carneiro, Dalton José; Machado, Márcia Rita Fernandes

doi:10.3738/1982.2278.771

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…In the intestinal segments of the tambaqui, the collagen shown in the cell layers corroborates the description by Honorato et al (2013) for the intestine of nile tilapia. Collagen is a synthesized protein and essentially composed of the amino acids glycine, proline and lysine.…”

Section: Intestinal Morphohistologysupporting

confidence: 87%

“…The intestine of the sh, structured by proteins such as collagen, is characterized by serosa, muscular, submucosa and mucosa layers, in which there are goblet cells and enterocytes (Yamauchi and Sricholpech 2012). Lysine and other amino acids are absorbed by intestinal villus enterocytes, which are able to increase their area to maximize nutrient capture (Honorato et al 2013). Through the vascularization of intestinal tissue, lysine is transported to places where it will be metabolized (NRC 2011).…”

Section: Introductionmentioning

confidence: 99%

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Dietary Lysine Requirements of Colossoma Macropomum (Cuvier, 1818) Based on Growth Performance, Hepatic and Intestinal Morphohistology and Plasma Biochemistry

ARdS

MdS

Wlp

et al. 2021

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This study aimed to determine the dietary lysine requirements of juvenile Colossoma macropomum tambaqui based on growth performance. We also evaluated gut and hepatic histomorphometry as well as blood metabolites in accordance with the increased levels of dietary lysine. The juveniles (33.88 ± 2.47 g) were fed until apparent satiation with diets containing 6.60, 9.72, 12.84, 15.96, 19.08 and 22.20 g/kg of lysine. Fish were randomly distributed in groups of 10 fish per tank and assays were performed in triplicate, during 90 days. Tambaqui fed with 15.96 g/kg dietary lysine showed higher final weight (p = 0.001) and optimized feed conversion ratio (p = 0.001). Morphohistological modifications were present in livers of fish fed with low levels of lysine. In the proximal intestine, mucosa layer density was greater at the level of 15.96 g/kg (p = 0.001). In the middle intestine, height (p = 0.001) and perimeter (p = 0.001) of the villi were greater at low levels of lysine (respectively, 9.72 and 12.84 g/kg dietary lysine). Tambaqui fed with 15.96 g/kg of lysine achieved higher plasma protein concentrations (p = 0.01). Using the second-order polynomial regression analysis as support, and based on protein efficiency rate and body weight gain, dietary lysine requirement for juvenile tambaqui was calculated as 15.4–15.6 g/kg of diet (5.7–5.8% of dietary protein).

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Section: Intestinal Morphohistologysupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Dietary Lysine Requirements of Colossoma Macropomum (Cuvier, 1818) Based on Growth Performance, Hepatic and Intestinal Morphohistology and Plasma Biochemistry

ARdS

MdS

Wlp

et al. 2021

Preprint

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“…Alguns estudos realizados apontam para o possível aproveitamento por silagem ácida de resíduos de peixes descartados como fonte de proteína para alimentação animal. 24,25 conduziram experimentos utilizando três fontes de proteínas: farinha de peixe, silagem de resíduo de tilápia e soja integral (proteína vegetal) na alimentação de tilápia do nilo. Os resultados mostraram semelhança nos tratamentos quanto ao crescimento dos alevinos, indicando qualidade da dieta e possibilidade de substituição da farinha de peixe por silagem de resíduos de pescado.…”

Section: Resultsunclassified

Acid Silage of Filleting Residue Two Fish Species Amazon for Use in Animal Feed

2020

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The study aimed to process and characterize acid silage from the residues of two species of Amazonian fish, piramutaba (Brachyplatystoma vaillantii) and dourada (Brachyplatystoma rousseauxii), in four storage times, with a view to use in animal feed. The research was developed at the Food Laboratory of the Center for Nature Science and Technology (CCNT) at the State University of Pará (UEPA). The physical-chemical analyzes (moisture, ash, proteins and lipids) of the wet silages and defatted flours were performed in triplicate considering four storage times: after the addition of acid (T0), on the seventh day of silage (T7), in the fifteenth day (T15) and on the twentieth day (T20). The data were submitted to analysis of variance (ANOVA) and the means compared by Tukey's method (α = 0.05). On the 7th day, the pH stabilized at 4.3 for the two silages. During the experimental period, the temperature in the dourada silage varied between 25.5 and 28.0 ºC, and in the piramutaba silage between 25.0 and 28.0 ºC. The lowest humidity values for the silage of bream and piramutaba were 75.69% (7th day) and 73.66% (15th day), respectively. Higher ash values were observed, on the 20th experimental day, for dourada (4.15%) and piramutaba (3.77%). The dourada silage, on the 7th day, showed a higher average protein value (13.10%), and the piramutaba, on the 15th day, with a value of 12.86%. The flours of dourada and piramutaba presented protein values of 66.78% and 66.64% and lipids of 6.85% and 9.05%, respectively. The defatted piramutaba flour showed higher values (1.75%) of lipids compared to the golden flour (1.11%). Therefore, the use of dourada and piramutaba residues showed excellent nutritional potential for use in animal feed, with an excellent level of protein and low values of humidity and lipids.

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“…The observed morphological characteristics in the liver of pacu are in accordance with the performed descriptions for other species of Neotropical fish (Fujimoto, Cruz and Moraes, 2008). No alterations were observed regarding organ overload, which may occur due to excessive protein levels in the diet and adaptations to nutrients and additives (Honorato et al, 2013).…”

Section: Liver and Muscle Morphologymentioning

confidence: 97%

Metabolism and growth performance of pacu (Piaractus mesopotamicus) juveniles submitted to different feeding frequencies

Rodrigues

Santos

Sousa

et al. 2021

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The aim of this study was to evaluate the effects of different feeding frequencies on productive performance, hepatocytes integrity, frequency of muscle fibers distribution, enzymatic activity, and proximate composition of pacu juveniles (Piaractus mesopotamicus). One hundred and sixty fish were distributed in 20 tanks arranged in a recirculation system. The proposed managements of feed offer were the partition of the daily amounts into one, two, three or four times during 60 days. Feed consumption were higher in fish fed four times a day, whilst the hepatosomatic index was higher in fish fed once, but similar to fish that received food two or four times a day. As for plasmatic glucose levels, fish fed twice a day displayed an increase in this parameter. The livers of fish fed two or four times a day presented larger hepatocytes and cellular nuclei. Regarding the proximate composition of carcasses, fish that received one daily feeding presented higher ether extract. It was concluded that feeding frequency is a factor that promotes changes in P. mesopotamicus nutritional metabolism, thus the offer of feed four times a day could be recommended for this species in this life stage.

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Histologia Do Intestino De Tilápia Do Nilo Alimentados Com Dietas Contendo Diferentes Fontes De Proteína

Cited by 7 publications

References 10 publications

Dietary Lysine Requirements of Colossoma Macropomum (Cuvier, 1818) Based on Growth Performance, Hepatic and Intestinal Morphohistology and Plasma Biochemistry

Dietary Lysine Requirements of Colossoma Macropomum (Cuvier, 1818) Based on Growth Performance, Hepatic and Intestinal Morphohistology and Plasma Biochemistry

Acid Silage of Filleting Residue Two Fish Species Amazon for Use in Animal Feed

Metabolism and growth performance of pacu (Piaractus mesopotamicus) juveniles submitted to different feeding frequencies

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