Energetic and protein diet for adults of Apis mellifera Linnaeus 1758 (Hymenoptera: Apidae). / Dietas energÃticas e protÃicas para adultos de Apis mellifera Linnaeus, 1758 (Hymenoptera: Apidae)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

The diet fed to adults of Apis mellifera in confinement is a relevant factor in the survival of these insects. In times of nectar shortage, a feeding supplementation with a solution of hydrolyzed sucrose through acid and heating can be given to the hive; citric acid found in lemon juice could be used. In this research, the survival of these confined insects fed with energetic and protein diets was evaluated and the inverted sucrose present in these diets was quantified. The research was accomplished at the Insect Biology Laboratory of the Entomology Department of the Federal University of Lavras â UFLA. The treatments with energetic diet were: honey, granulated sugar, granulated sugar + 1% tartaric acid, granulated sugar + 5% lemon juice, GludexÂ, fructose, Candy paste and water. The protein treatments were: pollen, wheat germ, rice flour, rice bran, beer yeast, corn cream, soy flour and crystallized honey as control. To evaluate sucrose hydrolysis in each diet, citric acid at the concentrations 0.0; 0.1; 0.16; 0.3; 0.5 and 0.7 g was utilized and also of 1.0; 5.0; 10.0; 15.0 and 20.0 mL of Galego [Citrus aurantifolia], Tahiti [Citrus latifolia] and Cravo [Citrus limonia] lemon juice. Ten replicates, each one composed of ten bees, were used for each treatment. The number of surviving bees was counted every 12 hours and the survival curve was adjusted according to the Weibull model and LT10, LT20, LT50 and LT99 were calculated. It was found that, among the energetic diets tested, granulated sugar added enriched with lemon juice allows the largest survival. It is demonstrated that there is no significant difference among the tested protein diets. The Galego lemon allowed the obtaining of 55.65 % of inversion when 20 mL of juice was used. The lowest percentage of inversion was found for the Cravo lemon. The beesâ longevity in laboratory was obtained of the newly-emerged bees from a cage maintained in a climate chamber and fed with1. honey; 2. pollen; 3. comb pollen + honey and 4. water. The use of adults of known age allowed precise estimates of the insectsâ longevity in function of the diets.

ASSUNTO(S)

abelha limÃo sobrevivÃncia lemon survival tempo letal lethal time entomologia agricola bee

ACESSO AO ARTIGO

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