This investigation was aimed to evaluate water pollution with heavy metals using three biomarkers, as well as the study of the aquatic insects-seasons interaction. Three species of aquatic insects collected from El-Mansouriya stream (Dakahlia, Egypt), during the different seasons from spring 2014 to winter 2015. Water samples, sediments and whole body of the three aquatic insects were analyzed ...

Vegetative propagation potentials of stem cuttings of different physiological ages of Gongronema latifolia highly valued for its nutritional and medicinal properties in South-eastern Nigeria was studied during two seasons in Nsukka. A single source of stem cuttings of the different physiological ages (hardwood, semihardwood and soft wood) was taken from a clone in a forest in South-eastern Nige...

A study was conducted to determine the copper status of different classes of grazing sheep during twodifferent seasons on a farm located in southern Punjab, Pakistan. A complete free-choice supplement wasavailable to all animals throughout the year. Soil, forage and blood plasma from animals were taken eighttimes during the year (2005) (four times in both summer and winter seasons). Soil Cu2+ w...

Dystocia (DYS) is an important problem in Holstein cattle and imposes important economic losses on cattle producers. The etiologies and types of DYS are various and different factors can influence its incidence. In the present study, incidence of different types of dystocia was investigated in different seasons and parities in Holstein cows. One hundred and eighty two primiand multiparous cows ...

Aedes aegypti is an important vector in Brazil being the main vector of the dengue-fever. This paper employs survival curves to describe the time in days from larvae to adult forms of Aedes aegypti raised, individually and collectively, and compares it during winter and spring when positioned inside and outside a laboratory. The study was conducted in São Vicente, a coastal city in Southeastern...

The green lacewings (Chrysopidae) belong to the Order Neuroptera and are described as voracious predators in the larval stage and sometimes also in their adulthood. They are an important group used in integrated biological control in field and horticultural crops. Individuals of Chrysoperla externa were collected during 2007 until March 2008 in five different locations in Jaboticabal, SP, with ...