Development and fecundity rate of Tribolium castaneum (Herbst) on Distillers Dried Grains with Solubles

作者：Fardisi Mahsa^*; Mason Linda J; Ileleji Klein E

来源：Journal of Stored Products Research, 2013, 52: 74-77.

DOI：10.1016/j.jspr.2012.12.001

• DDGS
• Red flour beetle
• Tribolium castaneum
• Oviposition
• Development

This research focused on the influence of two samples of corn Distillers Dried Grains with Solubles (DDGS) obtained from an "old" generation dry-grind fuel ethanol plant as a food and oviposition resource for red flour beetle, Tribolium castaneum, in contrast with traditional flour (90%)/yeast (10%) diet. Larval development was significantly faster on a flour/yeast diet (18.6 d) compared to the DDGS sample 1 (44.1 d) and DDGS sample 2 (34.5 d). DOGS sample 1 had the highest larval mortality (38.7%) with a wider mortality range (6.7-66.7%) compared with flour/yeast (4.4%, range 0-14.3%) and DDGS sample 2 (7.1, range 0-26.7%). Both DDGS diets and the flour/yeast diet had no significant influence on egg incubation period or pupation time and percentage of egg hatching or pupal mortality. Additionally, fecundity was significantly lower on DDGS compared to the flour/yeast diet (18.0, 36.5, and 175.5 eggs per female on DDGS sample 1, DDGS sample 2, and flour/yeast diet, respectively). These results indicate that this type of DDGS is not a suitable developmental diet compared to the standard laboratory diet and that the addition of this type of DOGS to animal feeds should not increase feed vulnerability to flour beetle infestation. A comparison of DDGS samples by particle size indicated that the larger particle size, sample 1 was less suitable for T. castaneum oviposition and development.

• 出版日期2013-1