AIM This study was conducted to investigate the occurrence of pathogenic Escherichia coli and Salmonella species in retail raw table eggs sold for human consumption in Enugu State and to determine the resistance of these pathogens to antimicrobials commonly used in human and veterinary practices in Nigeria. MATERIALS AND METHODS A total of 340 raw table eggs comprising 68 composite samples (5...

ozone is a powerful oxidant capable of killing insects and microorganisms and has been used in the food processing industry in the gaseous and aqueous states. in a laboratory study, the susceptibility of immature stages of an important stored-product pest, the indian meal moth, plodia interpunctella hubner to ozonated water was investigated. ozone was applied in aqueous form at four concentrati...

Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) is a serious pest of stored agricultural products and one of the most common insects found in grain storage and food processing facilities. Heat treatment has been revisited to control stored-product insects as a potential alternative to methyl bromide for disinfesting mills and food-processing facilities. The influence of acclimation of ...

The aim of the present work was to study the deltamethrin susceptibility of eggs from Triatoma infestans populations and the contribution of pyrethroid esterases to deltamethrin degradation. Insects were collected from sylvatic areas, including Veinte de Octubre and Kirus-Mayu (Bolivia) and from domiciliary areas, including El Palmar (Bolivia) and La Pista (Argentina). Deltamethrin susceptibili...

We have previously demonstrated that initiation of intracellular calcium ([Ca2+]i) oscillations in mouse eggs signals activation or apoptotic death depending on the age of the eggs in which the oscillations are induced. To extend these studies, mouse eggs were aged in vitro to 24, 32, and 40 h post-hCG and injected with sperm cytosolic factor (SF), adenophostin A, or sperm (intracytoplasmic spe...

Susceptibility of different biological stages of Spodoptera litura to various strains of entomopathogenic fungi was evaluated under laboratory conditions at Department of Entomology University of Agriculture, Faisalabad using the insect immersion method. Virulence potential of the entomopathogenic fungi varied with different biological stages of the insect pest. Eggs and larvae were comparative...

the effect of four concentrations (0.5, 1, 2.5, and 5 mg/lit) of two insect growth regulators ‎‎(igrs) of buprofezin and pyriproxifen on 1 and 4-day eggs, different nymphal instars, and ‎pupae of trialeurodes vaporariorum (homoptera: aleyrodidae), was studied at 26 ± 2 °c, 80 ± ‎‎5% rh, and 16: 8 (l: d) on lantana camara in the greenhouse. the effect of both igrs was ‎positively related to incr...