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여정수(J . S . Yeo),정일정(I . C . Cheong),정경진(K . J . Chung),정선부(S . B . Chung),정연후(Y . H . Jung),이기복(K . B . Lee),설동섭(D . S . Sul),오봉국(B . K . Ohh) 한국축산학회 1990 한국축산학회지 Vol.32 No.9
Through chromosomal analysis of 109 heads of the Korean Native Cattles, this research was observed results as follows; 1. Six heads(5.5%) were cosisted of two kinds of mosaic chromosomal spreads( I : monosomy, normal and trisomy II: monosony and normal) and these mosaicsms were variated at #29 chromosome. 2. One head was showed supernumery chromosome suggested B-chromosome. 3. 1/29 Robertsonian translocation was not found in the Korean Native Cattles.
여정수(J . S . Yeo),정경진(K . J . Chung) 한국축산학회 1991 한국축산학회지 Vol.33 No.8
An experiment was carried out to identify the chromosomal characteristics of the Korean Native Pig by comparing its morphological features with those of the Landrace breed. The results obtained from this study are as follows ; l. The Korean Native Pig had 38 chromosomes composed of 36 automosomes and 2 sex chromosomes. The length of p-arm in #2, 7, 8, 9, 11, 12, X and Y chromosomes of the Korean Native Pig was significantly shorter than those of Landrace breed. 2. The G-banding pattern in #l, 9 and X of the Korean Native Pig had distinctive bands which were different from those of Landrace breed. The #11 of the Korean Native Pig had a distinctive dark C-band at centromere while that of Landrace has a light hand. The #15 chromosome of Landrace breed had a more broad and distinctive band than that of the Korean Native Pig.
염색체의 배수성 증가에 의한 닭의 신품종 개발 2 . 다배수성 개체의 생산
여정수(J . S . Yeo),정선부(S . B . Chung),오봉국(B . K . Ohh),정경진(K . J . Chung) 한국축산학회 1990 한국축산학회지 Vol.32 No.10
For the induction of polyploid chicken. 660 birds were supressed by tri-ethylene melamine(0.25mg/2kg B.W) and 330 fertilized eggs from chicken of 24 hours laying cycle were incubated. Only 65 chickens Acre hatched in observation of many dead eggs and pips caused to unbalanced genetic structure. At 10-12 weeks of age chromosomal structures of 55 chickens were analysed in blood culture and 4 of them were identified as polyploid (3A+ZZW). Characteristics of polyploid chickens were heavier weight 21% and 88% than normal male and female at 30 weeks of age, sterility of female and weak legs. Through analysis of chromosomal structure of G-and C-banding polyploid chicken were observed the three pairs of chromosomes without specific genetical disorders.