The effects of population densities and diet on Tribolium castaneum (Herbst) life parameters
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Date
2016-10
Authors
Đukić, Nikola
Radonjić, Anđa
Lević, Jovanka
Spasić, Radoslava
Kljajić, Petar
Andrić, Goran
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
The effects of population densities (10, 25, 50 and 100 adults/50 g) and three diet types (protein-rich, carbohydrates-rich and compound feed) on life parameters (first emergence, development rate, number of progeny and body weight) of T. castaneum progeny were assessed. For each diet type and population density unsexed adults were allowed to feed and oviposit for 7 days before removal.
No progeny developed on protein-rich diets (sunflower meal, soybean concentrate, and corn gluten). In carbohydrates-rich diets (corn feed flour, wheat bran, coarse wheat) and compound feed for pigs and laying hens, first adults required the least time to emerge in wheat bran and control diet (wheat flour + 5% yeast) (15.2–16.5 days), and the longest in corn feed flour (23.1–24.5 days). In wheat bran and control diets, the adult emergence period was the shortest (15.7 and 15.2 days) at the initial population densities of 100 and 50 adults/50 g, and significantly longest (16.5 and 16 days) at the lowest density. Conversely, adults fed on feed for hens diet emerged the latest, after 22.5 days, at the population density of 100 adults/50 g, and the earliest, after 18.6 days, at 25 adults/50 g. The shortest period of adult emergence at all population densities was found in the control (15.9–20.2 days) and wheat bran (18–29.7 days), and the longest in feed for hens (56.2 days) and pigs (59.5 days) at the highest population density. Considering all densities, number of progeny were the highest in control diet (498-1226 adults) and wheat bran (354-1344 adults), and lowest in coarse wheat (220-300 adults). With increasing population density, progeny body weight decreased, and the highest weight was found in control diet and wheat bran (1.7 and 1.6 mg) at the lowest population density, and the lowest weight (1.0 mg) in hen and pig feeds at the highest density.
Description
peer-reviewed
Keywords
T. castaneum, population density, diet, development rate, body mass
Citation
N. Ðukić, A. Radonjić, J. Lević, R. Spasić, P. Kljajić, G. Andrić. The effects of population densities and diet on Tribolium castaneum (Herbst) life parameters. Journal of Stored Products Research 69 (2016) 7–13. DOI: 10.1016/ j.jspr.2016.05.007