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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Poultry Science
Journal Basic Information
Journal DOI :
The Korean Society of Poultry Science
Editor in Chief :
Volume & Issues
Volume 19, Issue 4 - Dec 1992
Volume 19, Issue 3 - Sep 1992
Volume 19, Issue 2 - Jun 1992
Volume 19, Issue 1 - Mar 1992
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Adipocyte Cellularity of Abdominal Fat Pad in the Farmed Korean Ring-necked Pheasants and Broiler Chicken
Korean Journal of Poultry Science, volume 19, issue 2, 1992, Pages 57~64
Abdominal fat pad from farmed Korean ring-necked pheasants that had scanty fat depot was characterized in terms of adipocyte size as determined by free fat cells liberated by collagenase incubation. Similar parameters was also measured in the broiler chicken with similar body weight to those of pheasants. The adipocyte from pheasants was much smaller than that of broiler chicken. The results of this study suggested that the scanty development of abdominal fat pad in the pheasants appeared to be due to a smaller size of adipocyte.
Consideration of Cause of Recent Severe Outbreaks of Newcastle Disease in Korea and a Brief Review of Virological Differences, Serological Diagnosis and Administration of a Vaccine
Korean Journal of Poultry Science, volume 19, issue 2, 1992, Pages 65~76
Since the first outbreaks of Newcastle disease ( ND) in Korea was reported in 1927, the disease has been a major problem in Korean poultry industry. Several attempts related ND prevention and controls have been tried and significantly reduced the ND outbreaks. However, recently frequencies of ND outbreaks have been increased throughout the country since 1988. Many assumptions such as variances of ND virus pathogenicity, decreased efficacy of ND vaccine, incorrect vaccination program etc, has been issued and discussed. Therefore, to clearly understand this recent situation of ND outbreaks in Korea, we reviewed all available past informations related with ND outbreaks in Korea and compared the virulence of recently isolated ND viruses with that of a reference one. Also, we discussed about some problems related with serological diagnosis. administration methods of vaccine and vaccination program.
The Performance of Layer Breeds and It′s Advance in the Future
Korean Journal of Poultry Science, volume 19, issue 2, 1992, Pages 77~95
This study was conducted to provide a guideline for laying hens breeding through comparing performance test results and domestic and foreign breeding processing for the purpose of succeeding in laying hen industry. The annual average egg numbers were 120 at 1930, 135 at 1940 and 175 at 1950 which was 146% increase during a decade. Heterosis was firstly introduced at 1924 and was applied to produce commercial stock since 1950. The theory of selection for quantitative traits was established by Lerner in 1951. In Europe and America, the annual average egg numbers in performance test were 175, 213, 219 and 277 in 1950, 1960, 1970 and 1985, respectively, and in Korea, those were 196, 226 and 265 in 1960, 1970 and 1980, respectively Laying hen breeding through simultaneous selection of numerous traits may provoke elevation of viability, improvement of feed efficiency, alongation of laying period and increase of disease resistance.
The Performance of Broiler Breeds and It′s Advence in the Future
Korean Journal of Poultry Science, volume 19, issue 2, 1992, Pages 97~105
The improvement of broiler breed has short history compare with layer breed, but there was much progresses in growth rate and feed requirement. The body weight was improved from 1.3kg at 954days of age in 1934 to 2.3kg at 49 days of age in 1991, and feed requirement was changed from 4.3 in 1934 to 2.06 in 1991. The poultry geneticians estimated that the age required to reach 2kg body weight will be reduced 28.7 days and feed requirement improve to 1.33 in 2006.
Cultivation of Avian Coccidia(Eimeria tenella) in Chicken Embryonic Eggs by Serial Passage
Korean Journal of Poultry Science, volume 19, issue 2, 1992, Pages 107~112
Sporozoite of Eimeria tenella inoculated into the allantoic cavities of embryonating eggs completed their life-cycle in the chorioallantoic membranes (CAM ) and produced viable oocysts. And the strain continued to adapt to the CAM through the period of the passages. In embryos, the reproduction of the strain, judged by oocyst production increased, but the pathogenicity, judged by mortality of embryo decreased, with increasing numbers of passage in eggs.