quarta-feira, 8 de agosto de 2018

Comparative Study Between Chicken Gizzards and Beef as Diets and its Influences on the Post- Embryonic Development and Longevity of Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae)



Abstract. Chicken gizzard was tested as an alternative to beef diet for creating Chrysomya megacephala (Fabricius) to reduce costs and optimize the time of diet preparation and maintenance of the colony diet. Forty newly hatched larvae were placed in 100 grams of diet: gizzard and meat
(control). The experiment was performed in triplicate. The mass of mature larvae was recorded in semi-analytical balance and separate batch of five. After emergence, three replicates of 10 pairs of adults were formed. The post-embryonic development was evaluated by Tukey’s test at a 5% level of
significance and longevity was adjusted Weibull regression. The mass of mature larvae showed no significant difference. The larval stage of flies reared in meat was longer. Pupae and newly emerged adults showed no significant differences as a function of diet. The increased mortality rate after after 22 days in both experimental diets. Greater longevity was achieved with diet gizzard, which was more efficient than the meat on the biological parameters studied.
Keywords: Biodiversity; Ecology; Entomology; Natural Diet; Reproduction.

Estudo Comparativo entre a Moela de Frango e Carne Bovina como Dietas e
suas Influências sobre o Desenvolvimento Pós-Embrionário e Longevidade de
Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae)

Resumo. Moela de Frango foi testada como dieta alternativa à carne para criação de Chrysomya megacephala (Fabricius) visando reduzir custos e otimizar o tempo de preparação da dieta e manutenção da colônia. Quarenta larvas recém eclodidas foram colocadas em 100 gramas de dieta: moela e carne (controle). O experimento foi realizado em triplicata. A massa das lavas maduras foi registrada em balança semi-analítica e separada em lotes de cinco. Após a emergência, foram formadas três repetições de 10 pares de insetos adultos. O Desenvolvimento pós-embrionário foi avaliado pelo teste Tukey com nível a 5% de significância e a longevidade foi ajustada por regressão Weibull. A massa das lavas maduras não apresentou diferença significativa. A fase larval de moscas criadas em carne foi mais longa. Pupa e adultos recém-emergidos não apresentaram diferenças significativas em função da dieta. A mortalidade aumentou após 22 dias de experimento em ambas as dietas. Uma maior longevidade foi conseguida com a dieta moela, que se mostrou mais eficiente do que a carne sobre os parâmetros biológicos estudados.
Palavras-Chave: Biodiversidade; Dieta Natural; Ecologia; Entomologia; Reprodução.

Daniele Dallavecchia Porto, 08/08/2018


fonte: https://www.periodico.ebras.bio.br/ojs/index.php/ebras/article/viewFile/ebrasilis.v8i1.454/314

domingo, 18 de outubro de 2015

Record of the First Cases of Human Myiasis by Lucilia cuprina (Diptera: Calliphoridae), Rio de Janeiro, Brazil

ABSTRACT
Myiasis is a disease caused by an infestation of the tissues of vertebrates by developing fly larvae. We document the first cases of human myiasis by Lucilia cuprina(Wiedemann, 1830) in Rio de Janeiro, Brazil, analyzed the epidemiological and clinical profiles of the patients, and their risk factors associated with the occurrence of the disease. Between May 2008 to July 2013, six cases of myiasis caused by larvae of L. cuprina were reported in patients treated in the Federal Hospital of Andaraí, Rio de Janeiro, Brazil. The six patients ranged between 13 and 72 yr old, belonged to various ethnic groups, and both sexes were represented. The affected individuals were relatively uneducated, had low income and poor hygiene habits. Infections were more common in the legs. The following factors were found to predispose individuals to myiasis: trauma, pediculosis, erysipelas, skin infections, and wounds resulting from congestive heart failure. Myiasis by L. cuprina occurred predominantly in the summer when there is abundant rainfall.






Autores: WELLINGTON THADEU DE ALCANTARA AZEVEDO, ADRIANA LEAL DE FIGUEIREDO, RAFAELA PEREIRA DE CARVALHO, GUSTAVO ABRANTES LEMOS, PÔLA FRANCINE CASSIANO MORAIS SILVA, TAÍS AURICCHIO DE MIRANDA, CLÁUDIA SOARES SANTOS LESSA, AND VALÉRIA MAGALHÃES AGUIAR




Intrapuparial Development of Chrysomya putoria (Diptera: Calliphoridae)

ABSTRACT 

The intrapuparial development of 150 pupae of Chrysomya putoria (Wiedemann, 1830) was analyzed. The material was kept in a climate chamber at 27 C (day) and 25 C (night), 60 10% relative humidity (RH), and a photoperiod of 14:10 (L:D) h, which started at 06:00 a.m. Daily, 30 pupae were frozen at 15 C, for the sacriÞce of the insects, and the immatures obtained were photomicrographed until the emergence of the adults. The following stages were observed: pupariation process: during this process, reduction of the larvae's first three body segments and the darkening of the cuticle occur; cryptocephalic phase after 18 h; phanerocephalic phase after 24 h; body division after 48 h. Between the third and the fourth days of the development, the stage of pharate adult was reached, characterized by the following changes in the color of the compounds eyes: 1) orange eyes, after 66 h; 2) red eyes, after 72 h; 3) dark red eyes, after 90 h; 4) brown eyes, after 96 h. The time of intrapuparial development ofC. putoriaat 27 C (day) and 25 C (night), 60 10% RH, and a photoperiod of 14:10 (L:D) h was 5 d.



Autores: BARBARA PROENÇA, ANTONIA C. RIBEIRO, RAFAEL T. LUZ, VALÉRIA M. AGUIAR,VALÉRIA C. MAIA, AND MÁRCIA S. COURI