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Alternative diets for Chrysomya putoria, an Old World screwworm fly.

Ferraz AC, Dallavecchia DL, da Silva DC, de Carvalho RP, da Silva Filho RG, Aguiar-Coelho VM - J. Insect Sci. (2012)

Bottom Line: Each replicate consisted of 40 newly hatched larvae of C. putoria (5(th) generation).The average temperature, measured with a thermohygrograph, was 20.6 °C, and the average relative humidity was 67.7%.The variation in the mean weight of mature larvae and in the duration of the larval, pupal, and total stages (newly hatched larvae to imagoes) were analyzed by Student's t-test (α = 5%), while viability was compared by ANOVA.

View Article: PubMed Central - PubMed

Affiliation: Universidade Federal Rural do Rio de Janeiro - UFRRJ, Rod. BR 465, Km 7, CEP 23890-000 Seropédica, RJ, Brazil. adrianapedroso7@yahoo.com.br

ABSTRACT
Abstract The purpose of this study was to evaluate the post-embryonic development of Chrysomya putoria (Wiedemann 1818) (Diptera: Calliphoridae) reared on a diet of gizzard or gizzard/agar homogenate, with a diet of beef used as the control. Four replicates per treatment were performed (60 mL of each diet). The gizzard (60%), distilled water, and agar homogenate were combined in a blender. Each replicate consisted of 40 newly hatched larvae of C. putoria (5(th) generation). Each glass beaker containing a diet was inserted into a larger flask containing sawdust, which was covered with a nylon cloth held in place by an elastic band. The larvae were weighed and stored in test tubes sealed with a nylon cloth and an elastic band. The average temperature, measured with a thermohygrograph, was 20.6 °C, and the average relative humidity was 67.7%. The variation in the mean weight of mature larvae and in the duration of the larval, pupal, and total stages (newly hatched larvae to imagoes) were analyzed by Student's t-test (α = 5%), while viability was compared by ANOVA. The sex ratio was evaluated by the chi-squared test. The average duration of the period from the larval to imago stage was 8.868 days on the beef diet, 8.676 on the gizzard diet, and 9.067 on the gizzard/agar homogenate diet. Larval survival rates on these diets were 98, 92, and 73%, respectively, while pupal viabilities were 98, 91, and 71%, respectively, and larva-to-imago viabilities were 93, 83, and 64%, respectively. The duration of the pupal period differed significantly between the blowflies reared on the beef and gizzard/agar homogenate diets. The two diets proved to be good alternatives for rearing C. putoria.

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Pace of emergence, in days, of males and females of Chrysomya putoria reared on beef (control), gizzard (T1), or gizzard/agar homogenate (T2) diets. Average temperature: 20.6 °C, average relative air humidity: 67.7%. High quality figures are available online.
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f02_01: Pace of emergence, in days, of males and females of Chrysomya putoria reared on beef (control), gizzard (T1), or gizzard/agar homogenate (T2) diets. Average temperature: 20.6 °C, average relative air humidity: 67.7%. High quality figures are available online.

Mentions: Figure 1 illustrates the pace at which mature larvae of C. putoria stopped feeding, pupated, and emerged as imagoes on the beef (control), gizzard (T1), and gizzard/agar homogenate (T2) diets. The T1 and T2 diets produced similar results in terms of emergence (peak on day 11), the end of feeding, and pupation. The peaks of the end of feeding and pupation of C. putoria reared on beef occurred one day later than on the other diets. The pace of emergence of males and females reared on the three diets (beef, gizzard, and gizzard/agar homogenate) was very similar (Figure 2).


Alternative diets for Chrysomya putoria, an Old World screwworm fly.

Ferraz AC, Dallavecchia DL, da Silva DC, de Carvalho RP, da Silva Filho RG, Aguiar-Coelho VM - J. Insect Sci. (2012)

Pace of emergence, in days, of males and females of Chrysomya putoria reared on beef (control), gizzard (T1), or gizzard/agar homogenate (T2) diets. Average temperature: 20.6 °C, average relative air humidity: 67.7%. High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472966&req=5

f02_01: Pace of emergence, in days, of males and females of Chrysomya putoria reared on beef (control), gizzard (T1), or gizzard/agar homogenate (T2) diets. Average temperature: 20.6 °C, average relative air humidity: 67.7%. High quality figures are available online.
Mentions: Figure 1 illustrates the pace at which mature larvae of C. putoria stopped feeding, pupated, and emerged as imagoes on the beef (control), gizzard (T1), and gizzard/agar homogenate (T2) diets. The T1 and T2 diets produced similar results in terms of emergence (peak on day 11), the end of feeding, and pupation. The peaks of the end of feeding and pupation of C. putoria reared on beef occurred one day later than on the other diets. The pace of emergence of males and females reared on the three diets (beef, gizzard, and gizzard/agar homogenate) was very similar (Figure 2).

Bottom Line: Each replicate consisted of 40 newly hatched larvae of C. putoria (5(th) generation).The average temperature, measured with a thermohygrograph, was 20.6 °C, and the average relative humidity was 67.7%.The variation in the mean weight of mature larvae and in the duration of the larval, pupal, and total stages (newly hatched larvae to imagoes) were analyzed by Student's t-test (α = 5%), while viability was compared by ANOVA.

View Article: PubMed Central - PubMed

Affiliation: Universidade Federal Rural do Rio de Janeiro - UFRRJ, Rod. BR 465, Km 7, CEP 23890-000 Seropédica, RJ, Brazil. adrianapedroso7@yahoo.com.br

ABSTRACT
Abstract The purpose of this study was to evaluate the post-embryonic development of Chrysomya putoria (Wiedemann 1818) (Diptera: Calliphoridae) reared on a diet of gizzard or gizzard/agar homogenate, with a diet of beef used as the control. Four replicates per treatment were performed (60 mL of each diet). The gizzard (60%), distilled water, and agar homogenate were combined in a blender. Each replicate consisted of 40 newly hatched larvae of C. putoria (5(th) generation). Each glass beaker containing a diet was inserted into a larger flask containing sawdust, which was covered with a nylon cloth held in place by an elastic band. The larvae were weighed and stored in test tubes sealed with a nylon cloth and an elastic band. The average temperature, measured with a thermohygrograph, was 20.6 °C, and the average relative humidity was 67.7%. The variation in the mean weight of mature larvae and in the duration of the larval, pupal, and total stages (newly hatched larvae to imagoes) were analyzed by Student's t-test (α = 5%), while viability was compared by ANOVA. The sex ratio was evaluated by the chi-squared test. The average duration of the period from the larval to imago stage was 8.868 days on the beef diet, 8.676 on the gizzard diet, and 9.067 on the gizzard/agar homogenate diet. Larval survival rates on these diets were 98, 92, and 73%, respectively, while pupal viabilities were 98, 91, and 71%, respectively, and larva-to-imago viabilities were 93, 83, and 64%, respectively. The duration of the pupal period differed significantly between the blowflies reared on the beef and gizzard/agar homogenate diets. The two diets proved to be good alternatives for rearing C. putoria.

Show MeSH
Related in: MedlinePlus