Scientists are using human occupied vehicles to explore underwater environments. There several mechanical features used in the design of vehicles. These primarily based on environmental factors such as high external pressure, low temperature, and corrosion resistance. In this paper, rated for 6,000 m depth studied, including Alvin, Jiaolong, MIR-1/MIR-2, Nautile, Shinkai 6500, well at 11,000 de...

Globodera spp. eggs go through a diapause, which remains dormant until favorable hatching conditions are reached. Because of the regulatory concerns with cyst nematodes, it is often only possible to rear eggs for research in the greenhouse. However, hatch is often lower for greenhouse-produced eggs than for eggs obtained from the field. The goal of this research was to determine storage conditi...

To determine the effect of astragalus and ginseng polysaccharides (APS, GPS) on immune response and improvement of H5N1 vaccine, 360-day-old broilers were randomly divided into 8 groups of 45 chicks, comprising APS groups (1-3); GPS groups (4-6); vaccine group (7); and blank control (8) (without polysaccharide and vaccine). From day 12 after hatch groups 1-3 were given APS and groups 4-6 with G...

This study evaluated the effects of a Bacillus direct-fed microbial and microencapsulated calcium butyrate fed individually in combination, as compared to an antibiotic growth promoter, on performance, processing characteristics, intestinal morphology, microbiota Ross 708 broilers reared from 0 47 d post-hatch. Dietary treatments included: (1) negative control with no antimicrobial (NC), (2) po...

This study was designed to extensively characterize the skeletal muscle development in the low weight (LW) quail selected from random bred control (RBC) Japanese quail in order to provide a new avian model of impaired and delayed growth in physically normal animals. The LW line had smaller embryo and body weights than the RBC line in all age groups (P<0.05). During 3 to 42 d post-hatch, the LW ...

Exposing eggs multiple times to ultraviolet light (UV) and 3% hydrogen peroxide (H2O2) results in a greater reduction of eggshell bacteria compared to eggs treated only once with this combination. However, it is unknown if this repetitive treatment will have any effect on hatchability. Therefore, the objective of this experiment was to determine if hatchability would be affected by reducing egg...

After the collapse of striped bass Morone saxatilis stocks in the late 1970s, hatchery programs and release experiments were instituted to evaluate the potential to restore striped bass in Chesapeake Bay. Because survival of striped bass larvae to first feeding (7 d after hatch) is low in Chesapeake tributaries, ranging from 0.2 to 5.2% of eggs spawned, it is possible to enhance survival throug...

Isolated-housing conditions (a single mouse in cage) have been reported to induce various changes in physiological and behavioral characters of mice comparing with collective-housing conditions. However, the effect of age and sex has not been studied in detail. In this report, the young (8 or 11 weeks old) and the mature (29 weeks old for male and 32 weeks for female) of both sexes were compara...