Sun Yang Park

Learn More
The United States ( U S ) poultry industry continues to implement induced moulting to extend egg production in commercial laying flocks. Achieving an optimal moult requires dietary manipulation to cause a complete regression of the reproductive organs and cessation of egg production. This is followed by rejuvenation and initiation of an additional egg(More)
This study was conducted to determine the effects of refrigeration and frozen storage on tibia breaking strength (kg/g) and tibia ash (%) in bones obtained from hens of different ages. A total of 75 Single Comb White Leghorn hens were divided into three equal groups according to age (72, 80, and 92 wk of age). Both tibias of each hen were harvested and(More)
Feed deprivation is the most common method used to induce molting and stimulate multiple egg-laying cycles in laying hens for commercial egg production. Unfortunately, an increased risk of Salmonella enteritidis (SE) colonization may result from the use of this method. Methods to stimulate multiple egg-laying cycles without increasing the risk of SE are(More)
This study was conducted to determine the ability of an alternative salt form of 1% Zn, Zn propionate, to induce molt in 66-wk-old hens. The hens were randomly assigned to 4 treatment groups of 27 or 28 birds each: a) molted conventionally by feed withdrawal, b) 1% Zn as Zn acetate, c) 1% Zn as Zn propionate, or d) nonmolted control for 9 d. Feed intake was(More)
The objective of the present study was to examine the combined effects of zinc compounds with different acidic pH levels on the aerobic growth of a S. typhimurium poultry isolate in either rich or minimal media. When overall main effects of pH levels of medium or concentrations of Zn compounds were compared, growth rates of the S. typhimurium poultry(More)
Performance and stability between the topand bottom-gate field-effect transistor configurations are investigated in dual-gate transistor structures consisting of the same insulator and gate materials. The transistors behave similarly for both gate modes with ON/OFF ratio in excess of 10, subthreshold swing of 0.5-1V/decade, and mobility of 0.03-0.04 cm/Vs,(More)
Fluorescence in situ hybridization (FISH) can detect minor genetic changes that cytogenetic analysis may miss; however, there are few reports on the kinds of genetic changes that show large discrepancies between results obtained with FISH versus G-banding techniques. To investigate genetic changes that tend to be detected with FISH only, we compared the(More)
Determination of the remission of acute promyelocytic leukemia (APL) after chemotherapy can be difficult because many cases of APL show reverse transcription polymerase chain reaction positivity after consolidation treatment. Moreover, the discrimination of leukemic promyelocytes and regenerating promyelocytes by morphology is sometimes difficult. Although(More)
Cross sections of As radionuclides in the interaction of Ge with 14-30 MeV protons have been deduced by off-line -ray spectroscopy to find optimal reaction channels leading to radiotracers for positron emission tomography. The experimental results were compared with the previous results and those estimated by the compound nucleus reaction model.(More)
s of papers 25 females under ambient temperatures. Conversely, both strains showed an age-related decline in egg production, with a more rapid decline found for Dandarawi female. However, this decline was not affected by temperature. Hy-line females had significantly higher (p≤0.001) egg production, egg weight, and clutch size. Eggs from Dandarawi females(More)