In northern Togo and northeastern Ghana, Oesophagostomum bifurcum is a common parasite in humans. Diagnosis is based on coproculture because the eggs of hookworm and Oesophagostomum are indistinguishable. To determine the level of egg production, 12 subjects were treated with 2 x 10 mg/kg of pyrantel pamoate and the worms they evacuated were then counted. Pretreatment and post-treatment species...

Vaccination remains the principal way to control seasonal infections and is the most effective method of reducing influenza-associated morbidity and mortality. Since the 1940s, the main method of producing influenza vaccines has been an egg-based production process. However, in the event of a pandemic, this method has a significant limitation, as the time lag from strain isolation to final dose...

Juvenile turkey hens were actively immunized against vasoactive intestinal peptide (VIP) prior to photostimulation to evaluate its effect on enhancing egg production. VIP antibody titers were generated in the VIP immunized hens and a greater rate of egg production per hen was observed compared to controls. In addition, the first egg laying cycle was extended for an additional 7 wk without a sig...

Plasmodium mexicanum is a common malarial parasite of the western fence lizard, Sceloporus occidentalis, in northern California, USA. Infected female lizards store substantially less fat during the summer activity season and produce smaller clutches of eggs than do non-infected animals. Stored fat is utilized in the production of eggs; the energy content of the decrement in stored fat is approx...

The article presents data on the results of influence “Reasil® Humic Vet” egg production laying hens, weight eggs, their commercial qualities, as well hematological blood parameters and economic feasibility using such additives in poultry farming. Taking into account additional costs for feed additive, profit from sale eggs first experimental group amounted to 146.77 rubles, second 174.84 third...

For free-spawning marine invertebrates, the egg is the unit of maternal investment in offspring. For many taxa, there is a major life-history trade-off between production of many small, nutrient-poor eggs in high-fecundity species and fewer large, nutrient-rich eggs in low-fecundity species. In echinoderms, the switch from small eggs in species with ancestral-type feeding larvae to large eggs a...

The aim of this study was to investigate the differences in production performance, use of nest box, and external appearance of 2 strains of laying hens kept in conventional and enriched cages. Lohmann Brown Classic (LB, n=532) and Lohmann LSL Classic (LW, n=532) hens were housed from 16 to 73 wk in either conventional cages or enriched cages. Enriched cages had a nesting area, scratch pad, per...

As a way to escape from adverse conditions, many zooplankton populations produce diapausing eggs that accumulate in the sediments and hatch when suitable environmental conditions are restored. While buried in the sediment, diapausing eggs may be affected by several processes (i.e., production, hatching, deterioration, and loss). We present a simple mathematical model for the dynamics of diapaus...

the species of larinus spp. feed on developing achiness of flowerhead of plants in the family asteraceae and cause decrease in seed production of these plants. in this study, the life cycle parameters of the weevil larinus affinis fremuth on echinops aucheri boisswere studied in kerman under natural conditions during 2010 and 2011. this weevil overwintered as adults under ground litter. the fem...

The effects of soil management systems on root-knot nematode (Meloidogyne incognita) eggs and gall incidence on tomato (Lycopersicon esculentum) and cucumber (Cucumis sativus) following tomato were evaluated. Soil was collected from a replicated field experiment in which six management systems were being assessed for vegetable production. Soil management systems were conventional production, or...