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G- banding 에 의한 한우 염색체 표식인자에 관한 연구
홍영호(Y . H . Hong),오봉국(B . K . Ohh),손시환(S . H . Sohn) 한국축산학회 1991 한국축산학회지 Vol.33 No.5
This study was carried out to identify chromosomal G-banded pattern as genetic markers for Korean Native Cattle(Han-Woo) which were 4 to 5 years old. Heparinized peripheral blood from 7 healthy subjects(2- males and 5 females) was cultured according to the routine method. For inducing the metaphase plates colcemid was added to the cultures 1.5 hr prior to harvesting and chromosome preparation were made by the conventional air-drying procedure. The best G-banding patterns were obtained with the trypsin banding technique and the slides were aged in free-dust place during at least one week. The results of the study were described as follows. The G-banding of chromosome has permitted more detailed study and identification of Korean native cattle chromosomes. Banding patterns of chromosomes appeared to be characteristic and distinctive along the chromosome, except that position of the centromere and sex chromosomes X, Y had dark centromere regions. Compared with the other domestic cattle breeds, significant banding patterns hate not found except a little differences in the 3, 7, 17, 18, 19, 36, 38th autosomes and X sex chromosome. The chromosomal genetic markers were designed as a positive band(dark), $quot;D$quot;. and a pale band(light). $quot;L$quot;. Therefore, in front number of marker D and L indicated band numbers. To demonstrate the usage of markers, however, the repetivive experiments and the techniques for a obtaining distinctive and large number of bands were required.
한국 오골계의 유전 특성 분석을 위한 임의 염기 서열의 Short Oligonucleotide Primer 를 이용한 Polymerase Chain Reaction 기법의 적용
황규춘,홍영호,이학교,손시환,조병욱,한재용 ( K . C . Hwang,Y . H . Hong,H . K . Lee,S . H . Sohn,B . W . Cho,J . Y . Han ) 한국축산학회 1997 한국축산학회지 Vol.39 No.1
This study was carried out to establish the optimal RAPD condition using, short oligonucleotide primers and then to compare the genetic characteristics of Korean Native Ogol Chicken with other breed of chicken, including WL, RIR, CN and KNBC. Each 5 individuals per breed were bled and DNA was extracted from collected blood. The primers used in this study were composed of 10 oligonucleotides of 50∼80% G+C content. The optimization on the primer annealing temperature, concentration of Mg ion, amount of template DNA was conducted. From initial 400 primers, 50 polymorphic primers between individuals of same or different breeds were selected. And finally, 10 primers showing highly polymorphic and reproducible pattern were selected and 49 polymorphic markers were counted for Band Sharing Coefficient estimation. Both KNOC and KNBC showed a high genetic homogeneity (0.862, 0.858) and RIR showed most homogeneous genetic composition {0.891). In the case of interbreed comparisons, both KNOC and KNBC showed the highest genetic similarity with CN (0.810, 0.835) and the least with WL (0.772, 0.782) than any other breeds. Therefore, the RAPD technique using short oligonucleotide sequences was useful for genetic analysis in chicken
양시용(S. Y. Yang),홍영호(Y. H. Hong),송창선(C. S. Song) 한국가금학회 2010 한국가금학회 심포지움 Vol.2010 No.5
축산물은 사람의 주요 식품원으로서 중요하지만, 식중독균의 주요 매개체이기도 하다. FAO/WHO(2002) 보고에 따르면 유럽에서 발생하는 식중독의 약 26 %가 닭고기 및 계란을 포함한 가금유래로서, 식중독 발생의 77.1 %가 살모넬라균이 원인으로 나타났으며, 특히, S.enteritidis가 1/3 이상을 차지하는 것으로 나타났다. 전 세계적으로 살모넬라 오염 가금생산물의 공중보건학적 위험을 해결하기 위한 제어방안과 프로그램에 대한 관심이 확산되고 있으며, EU와 미국을 중심으로 살모넬라 제어를 위해 사육단계에서부터 도축 및 가공단계까지 전 과정에서의 살모넬라 제어프로그램을 적용 확대해가고 있다. 식품 안전에 대한 요구가 증가되고 있는 현 시점에서 제시한 바와 같은 살모넬라 차단방역 시스템 설계, 현장에 쉽게 적용할 수 있는 수준의 가이드라인 개발 및 백신과 유기산, 경쟁적배제제, 프로바이오틱스, 박테리오파아지 등과 같은 살모넬라 저해제의 적용을 포함한 살모넬라 부재 가금 및 안전 계육 생산기법의 개발이 필요하다. Salmonella infections cause the disease in poultry and some zoonotic. Salmonella can be transmitted to human through poultry products, resulting in foodborne disease. The FAO/WHO report on foodborne diseases in EU reported that about 26 % of foods involve in outbreaks involves poultry and poultry products. Salmonella is the most frequently reported causal agent of outbreaks in the EU, being possible for 77.1 % of outbreaks. Of these, more than one third were confirmed to be caused by Salmonella enteritidis. Salmonella infections in birds are increasingly worldwide subject to control measures and programs due to the public health threats by Salmonella contaminated poultry products. The US and EU have initiated control programmes to reduce Salmonella in poultry. Control programmes include the whole poultry production chain, and include measures of biosecurity, Salmonella-free feed, management systems, hygiene and disinfection. Salmonella control programmes may include vaccinations and feed additives such as organic acids, competitive exclusion products, probiotics, prebiotics, essential oils and bacteriophages.
배반엽성세포를 이용한 카이메라 닭 ( 화이트레그혼 ↔ 오골계 ) 생산
서동삼(D . S . Seo),홍영호(Y . H . Hong),최강덕(K . D . Choi),양무희(M . H . Yang),신영수(Y . S . Shin),한재용(J . Y . Han) 한국축산학회 1995 한국축산학회지 Vol.37 No.1
The chicken embryo contains 30,000 to 60,000 cells at development stage X, the blastodermal cells at this stage are believed to he pluripotent and subsequently contribute to melanocytes derived from the neural crest, to erythrocytes and to germ cells. In this study, blastodermal cells were isolated from stage X embryos of Korean Native Ogol Chicken (KNOC). The isolated blastodemial cells were transfected with liposome and dispersed by pipetting. A 2㎕ volume of cell suspension was microinjected into the subgerminal cavity of recipient embryos at an equivalent stage of development of the donor and recipient. Of the 332 White Leghorn embryos that were injected with KNOC blastodermal cells, three unhitched embryos were phenotypically chimeric with respect to feather color and one embryo hatched. This technique may be useful in development of a transgenic chicken production system.