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RISS 인기검색어
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- 저자 : 오희정(H . J . Ohh) (검색결과 2 건)
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오희정,손시환,최성복,정선부,정일정 ( H . J . Ohh,S . H . Sohn,S . B . Choi,S . B . Chung,I . C . Cheong ) 한국축산학회 1993 한국축산학회지 Vol.35 No.5
This study was carried nut to obtain the frequencies and patterns of chromosomal aberration in the early embryos and to investigate the relationship of hatchability and chromosomal aberration. Total of 690 fertile eggs from broiler breed, layer breeds, Korean native chick, Ogolgye and Korean ring-necked pheasant were examined. Metaphase spreads were prepared from 16-to 18 hours embryos. The procedures were colchicine treatment, hypotonic, fixation and then air-drying method. The karyotypes were made from each of clear metaphase spread. A total of 520 embryos were successfully analyzed, of which 491 were diploid, 4 were haploid, 12 were haploid-diploid mosaic. I was triploid, 3 were aneuploid, 8 were aneuplid mosaic and I was triploid-3 tetrasomy. The average frequency of poultry chromosomal aberration was 5.6% which included 7 of broiler breed, 6.8% of Korean native chick, 5.9%, of Ogolgye, 5.0% of Korean ring-necked pheasant, and 3.7% of layer breed. The incidence of highest embryonic dead was Korean native chick. The hatchahility of layer breed which had the lowest incidence of chromosomal aberration was 65%. Others were 57% of meat breed, 49% of Ogolgye, and 43% of Korean native chick. Thcsc showed the tendency that the higher incidence of chromosomal aberration had decreasing hatchability. It was also certain that the frequencies of embryonic chromosomal aberration and of early embryonic dead seemed to be closely and positively correlated.
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한국 꿩 ( Korean Ring - necked Pheasant ) 의 형태적 특징과 핵형 분석
최성복(S . B . Choi),손시환(S . H . Sohn),정선부(S . B . Chung),정일정(I . C . Cheong),오희정(H . J . Ohh) 한국축산학회 1991 한국축산학회지 Vol.33 No.6
A preliminary study of phenotypic characteristics and karyotype of Korean ring-necked pheasant was carried out. The phenotypic characters of interest were mainly feather color and body conformation. In phenotypic characteristics. the feather color patterns and body type showed significant differences in male and female. A distinctive feature of Korean ring-necked pheasant male had red skin around eyes. white ring neck. and brownish-yellow color in whole body feather In contrast. a female bad mixed color of dark brown and buff in whole body feather. Through the karyological analysis from carp embryonic tissues the diploid complements of Korean ring-necked pheasant had a total of 82 chromosomes which were mostly acrocentric chromosomes except metacentric chromosome I and Z sex chromosome. The morphologic structures of these chromosomes were almost telomeric acrocentric. However, chromosome 5 and W sex chromosome were the acrocentric chromosomes with a short arm. The centromeric indices of chromosome I and Z sex chromosome were 39% and 42% respectively. The relative lengths of these chromosomes were 32.5% and 13.3% respectively.
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