906 resultados para Peixes de pequeno porte


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Pós-graduação em Aquicultura - FCAV

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Compreendido por um bloco (A) constituído de material metálico, possuindo quatro parafusos para fixar o sensor à estrutura, bem como possui grande resistência mecânica a deformação quando ocorre a inclinação da estrutura, de maneira que o bloco (A) está ligado ao bloco (B) por meio de parafusos internos, sendo o bloco (B) desenvolvido em duralumínio, o qual sofre a ação de grandes tensões provocadas pela sensibilização decorrente da existência de dois orifícios retangulares (E) passantes que criaram as regiões sensoras (rs1) e (rs2), sendo que em cada região sensora existem duas membranas laterais ao orifício, de forma que, devido a sensibilização das regiões (rs1) e (rs2)

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Descrito como o presente Privilégio de Invenção, refere-se a um dispositivo para a fazer a medição dos ângulos de diferentes tipos de estruturas, para tanto o mesmo possui um corpo mecânico, formando um sensor de inclinação (1), composto por três partes onde, a primeira parte é a base (2), dotada de um par de orifícios (3), para a inserção de parafusos que fixam o dispositivo junto a uma estrutura qualquer.

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INTRODUCTION: Attention in Worker's Health (WH) integrality incites expansion of Primary Health Care (PHC) actions. So, it is necessary to understand the work carried out at PHC units and its possibilities to subside WH plans and procedures aiming at workers' health integral attention. OBJECTIVE: To present PHC workers' perception concerning WH actions performed in health care units of a mediumsized municipality in the state of São Paulo. METHODOLOGY: data collected through a 20 question-self-assessment questionnaire prepared by the researcher, using descriptive analysis of closed questions and content analysis of open questions. RESULTS: 45% of all workers answered the questionnaire. All health units in the municipality and all the professional categories part of the PHC teams were enclosed. The answers indicated that the PHC personnel, when providing assistance to users, take their jobs into consideration, and that some actions concerning worker's health are carried out at health care units. The respondents also pointed out that their difficulties to perform these actions are much more related to aspects of the system organization and management, than to the particularities of the worker's health area. CONCLUSION: The study indicates that health care worker's working condition is an important issue for the implementation of PHC worker's health actions

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The objective of this work was to evaluate the effect of slightly saline water in an intensive larviculture of tambaqui, matrinxã, apaiari, and piau, during the initial days of active feeding. Larvae were reared in artificial saline water, at concentrations from 0 (freshwater) to 14 g L-1 NaCl (at a 2.0 g L-1), and fed with two portions of Artemia nauplii, following a specific protocol for each species, in a completely randomized design, with 3 replicates. Tambaqui, matrinxã and apaiari larvae can be reared at saline concentrations till 2 g L-1 without impairing growth and survival. Piau larvae were more tolerant and endured saline water until 4 g L-1. At saline concentrations above that, fish mortality increased and reached 100% at 6 g L-1, for matrinxã and apaiari, and at 10 g L-1, for tambaqui. Saline water at 2 g L-1 provided a higher survival for matrinxã, and higher growth for tambaqui, apaiari and piau. These last two species showed a better growth performance with the highest quantity of nauplii. Slightly saline water at 2 g L-1 is beneficial to these studied species, as it optimizes larval growth potential and the use of Artemia nauplii as live food.