Susceptibilities of 5 different mice strains, including C3H/HeN, BALB/c, C57BL6, FvB and ICR, to Echinostoma hortense infection, was evaluated. The worm expulsion rate, worm size and egg production were observed from 1 to 8 weeks after infection with 30 metacercariae. C3H/HeN and ICR mice showed the highest worm maturation rates. The worm recovery rate and the number of eggs per gram (EPG) of f...

This study was aimed to determine effects of the addition dry spinach leaves laying hen diets on performance, egg quality and yolk colour. A total 40 Lohman white hens, 38 weeks old, were allocated 4 treatment groups, with 10 replicates in individual cages. The groups as follows: 1) Negative control group (NC, there is no colorant), 2) Positive (PC, commercial colorant) basal diet), 3) 1% groun...

The effect of estrogen on the synthesis of plasma very low density lipoproteins (VLDL) in the cockerel was studied both in vivo and in vitro. Synthesis was studied by immunoprecipitation techniques with antisera prepared against VLDL and a major VLDL protein. VLDL were isolated from the plasma of white Leghorn hens and estrogen-treated white Leghorn cockerels by ultracentrifugal flotation at d ...

The effect of yeast culture (Saccharomyces cerevisiae) supplementation on laying hen diets was tested against flavomycin supplementation during 12 weeks, using 112 Brown Bovans laying hens, 52 week-old, divided into 7 equal groups fed on a basal diet containing 18.8% crude protein and 2810 kcal/kg ME (metabolizable energy) feed. Three groups were supplemented with 3 different levels of commerci...

Individual-based models have gained popularity in ecology, and enable simultaneous incorporation of spatial explicitness and population dynamic processes to understand spatio-temporal patterns of populations. We introduce an individual-based model for understanding and predicting spatial hen harrier (Circus cyaneus) population dynamics in Great Britain. The model uses a landscape with habitat, ...

W hen Linda agreed to become nurse manager for the floor of a major teaching hospital, she had no illusions that turning around this " war zone, " as she describes it, would be easy. Nurses were using street language in front of patients. Staff members yelled at each other. Patients routinely wrote complaints about the staff. In other words, respect, teamwork, and accountability were scarce. Th...