Dietas naturais na criação de Chrysomya albiceps (Wiedemann, 1819; Diptera: Calliphoridae): estudo comparado

Abstract

Procurou-se observar o desenvolvimento pós-embrionário de Chrysomya albiceps, testando-se, comparativamente, dietas à base de sardinha e carne eqüina. Os substratos frescos foram previamente mantidos a 30°C de temperatura durante duas horas. Foram inoculadas 50 neolarvas em 100g de dieta por repetição. Utilizaram-se quatro repetições por tratamento. O experimento foi conduzido em condições de laboratório. O peso médio das larvas após o abandono espontâneo das dietas foi de 91,19mg, no substrato à base de carne eqüina e 76,01mg, no substrato à base de sardinha, a diferença foi, portanto, significativa. A taxa de sobrevivência larval registrada foi superior a 80%, enquanto a taxa de sobrevivência pupal foi próxima a 100%. A razão sexual foi próxima a 0,5. A dieta à base de carne eqüina mostrou-se mais adequada ao desenvolvimento de C. albiceps, pois as larvas mantidas neste substrato apresentaram-se mais pesadas, o que potencializa a capacidade reprodutiva do adulto.

Post‐embryonic development of Chrysomya putoria (Diptera: Calliphoridae) in swine and bovine tissues in South America: implications for forensic entomology

“…Conversely, larvae that fed on other swine and bovine tissues developed faster, and in T2 (swine lung), T3 (swine heart) and T5 (bovine heart), they gained more body mass than larvae reared on swine liver (T1). This corroborated Ribeiro and Milward‐de‐Azevedo (), who stated that the speed of larval development is positively correlated with the rate of nutrient assimilation, which is reflected in weight gain.…”

“…In the evaluation of the performance of diets on larval development, Ribeiro and Milward‐de‐Azevedo () and Barbosa et al . () emphasised the importance of the diet used to rear the flies that originate the larval stock.…”

Diets of animal origin and their influence on the development of the immatures of Chrysomya albiceps (Diptera: Calliphoridae): implications for forensic entomology

“…Animal-based diets are the natural substrate of these necrophagous insects and need to be employed. This finding corroborates studies that observed that the time of larval development and the rate of assimilation of nutrients are factors that together influence larval weight gain (Ribeiro & Milward-de-Azevedo, 1997;Salazar-Souza et al, 2017). The results presented here confirm the suitability of swine and bovine meats as larval substrates.…”

“…This is reflected in the faster development and greater body mass gain of insects reared on the former. This finding corroborates studies that observed that the time of larval development and the rate of assimilation of nutrients are factors that together influence larval weight gain (Ribeiro & Milward-de-Azevedo, 1997;Salazar-Souza et al, 2017).…”

“…Previous studies have underlined the importance of the diet used to establish and maintain the colony stock, and the possible influence of the maternal effect on nutrient intake (Ribeiro & Milward‐de‐Azevedo, ; Barbosa et al ., ). For the study herein, the flies that produced the larvae that were subsequently evaluated in the two tissues were maintained on the same food substrate as in the control (i.e.…”