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Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae) Acta Amazonica
ARAÚJO-DAIRIKI,Thyssia Bomfim; CHAVES,Francisco Célio Maia; DAIRIKI,Jony Koji.
ABSTRACT Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative diet; Growth performance; Nutrition; Fish.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100032
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Ecological risk assessment of Piper aduncum essential oil in non-target organisms Acta Amazonica
MIURA,Patrícia Tidori; JONSSON,Claudio Martín; QUEIROZ,Sonia Claudia do Nascimento de; CHAGAS,Edsandra Campos; CHAVES,Francisco Célio Maia; REYES,Felix Guillermo Reyes.
ABSTRACT One possible alternative to chemotherapeutic agents in the treatment and prevention of diseases in fish farms is the use of Piper aduncum essential oil. However, ecotoxicological data are required to ensure its proper use and to prevent adverse effects on non-target organisms. These data are relevant since this essential oil is described as having insecticidal, molluscicidal and cytotoxic activitiy that may be associated with its chemical composition. Thus, the aim of this study was to evaluate the ecotoxicity of P. aduncum essential oil to five test organisms using the species sensitivity distribution (SSD) statistical approach. The chemical composition of the essential oil was characterized by means of gas chromatography coupled to mass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecotoxicity; Hazardous concentration (5%); Predicted no-effect concentration; Species sensitivity distribution; Spiked pepper.
Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100071
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Genetic diversity among accessions of sacha inchi (Plukenetia volubilis) by phenotypic characteristics analysis Acta Amazonica
RODRIGUES,Haroldo Silva; BORÉM,Aluízio; VALENTE,Mágno Sávio Ferreira; LOPES,Maria Teresa Gomes; CRUZ,Cosme Damião; CHAVES,Francisco Célio Maia; BEZERRA,Caroline de Souza.
ABSTRACT Sacha inchi (Plukenetia volubilis) is native to the Amazon region and has a high seed content of mono and polyunsaturated fatty acids, making it interesting for the pharmaceutical and cosmetic industry. The purpose of this study was to analyze sacha inchi genetic diversity and describe accessions based on phenotypic characteristics. Fruits and seeds of 25 accessions from the sacha inchi genebank of Embrapa Amazônia Ocidental in Manaus, Amazonas state, were sampled and biometrically measured. The data were subjected to analysis of variance, Mahalanobis distance, canonical correlation, and genetic diversity among and within accessions by analysis of molecular variance (AMOVA). There were significant differences among the means of the analyzed...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Euphorbiaceae; Biometrics; Amazon region; Genetic resources.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000200093
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Repeatability of biometric and fruit and seed yield traits of sacha inchi Acta Amazonica
VALENTE,Mágno Sávio Ferreira; LOPES,Maria Teresa Gomes; CHAVES,Francisco Célio Maia; OLIVEIRA,Ariane Mendes; FREITAS,Diego Rodrigo Bilby de.
ABSTRACT Repeatability allows an estimation of the number of evaluations needed to optimize the selection of superior genotypes, with consequent effects on the research costs in terms of financial and human resources. The objective of this study was to estimate the coefficient of repeatability of biometric and yield traits, related to fruits and seeds of sacha inchi (Plukenetia volubilis), and to define the number of evaluations required for an efficient selection and evaluation of genotypes of the species. A total of 37 non-domesticated accessions were evaluated for 19 months in a randomized block design with 5 replications and 2 plants per plot. The total number of fruits, total number of seeds, total fruit weight, mean fruit weight, and number of seeds...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding; Accuracy; Selection efficiency; Plukenetia volubilis L..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300195
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Ethnobotanical study of antimalarial plants in the middle region of the Negro River, Amazonas, Brazil Acta Amazonica
TOMCHINSKY,Bernardo; MING,Lin Chau; KINUPP,Valdely Ferreira; HIDALGO,Ari de Freitas; CHAVES,Francisco Célio Maia.
ABSTRACT The middle Rio Negro region is an interesting place to seek novel antimalarial compounds because of the traditional knowledge of the Amazon population in conjunction with the high biodiversity of the region. The objective of this work was to study the use of antimalarial plants in Barcelos, state of Amazonas, Brazil. Fifty-two local specialists from eight different communities were interviewed over one year. The identified plants were collected with the assistance of local specialists, classified to species level and deposited in herbarium. In total, 55 antimalarial plants were identified in use in the region, of which 16 had not been previously reported in other published studies. Many factors could be involved with the use of antimalarial plants...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malaria; Ethnobotany; Amazonia; Medicinal plants; Traditional knowledge.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300203
Registros recuperados: 5
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