꿩의 생산기술현황과 생산전망

양영훈 한국가금학회 1996 한국가금학회 심포지움 Vol.- No.-

제주마 체형 측정치에 의한 혈통등급 판정에 관한 연구

양영훈 濟州大學校 農科大學 動物科學硏究所 1997 動物科學論叢 Vol.12 No.1

A study was carried out to investigate the relationship between the body measurements and registration grades of Cheju horses. By 12 body measurements coincidence rates of grades from the discriminant analysis with rewtration grades was 85% for Grade A, 87% for grade B, and 87% for grade F, and the error rate was 14%. Among the various partial combinations of body measurements, classification by the group of back height, back width, rump height, hip width, and rump length showed hegh value of coincidence rate with original grades(error rate 28%). The coincidence rate was very low when classified by body height only, and the error rate was 46%. Grad~ng method by discriminant functions is expected to be helpful for the preservation of body characters of Cheju native horse, and for the grading for registration. Classification by body height only is considered to be dangerous in grading for Cheju native horse.

한우 , 제주재래흑우 , 흑모화우와 갈모화우에서의 MSH Receptor(MC1R) 유전자의 유전자형 및 빈도 비교

양영훈,김규일,오성종,이성수,고서봉,강승률,오운용,양보석 한국동물자원과학회 2000 한국축산학회지 Vol.42 No.3

PCR-RFLP analysis of MSH receptor (melanocyte-stimulating hormone receptor; MCIR) gene was carried out to confirm the genotypes and frequencies in Korean Cattle, Cheju Native Black Cattle, Japnaese Black, Japanese Brown, Holstein and Angus. Genetic relationship of these breeds and coat colors to alleles at the Extension locus, that encodes MCIR were also determined. Allele E^D E^+ and a were detected by digestion with BsrF I (or Msp I ) and Aci I . A Dominant allele E^D, which is considered to be typical allele for dominant black coat color in cattle breeds, such as Holstein and Angus, was not detected in Korean Cattle and Japnases Brown with yellowish-brown coat color. Among sixty-two Cheju Native Black Cattle and fifteen Japanese Black, only ten and eleven heads had the dominant allele E? respectively. The remaining animals possessed the genotype E^+/E^+ or E^+/e, which probably reflect alleles at the A-locus which are supposed to give rise to the recessive black color. Several animals of Cheju Native Black Cattle and Japanese Black possessed the genotype E^D/-, probably reflecting the genetic introgression of E^D allele into these breeds during the crossbreeding period for improving. These results show that the difference of MCIR genotype and frequency among these breeds may be useful for conservation of endangered Cheju native Black Cattle and also genetically discreminating between meat of Korean Cattle and that of Holstein

종모우모형에서 직접법과 반복법의 해의 비교

양영훈,오봉국,이득환 ( Y . H . Yang,B . K . Ohh,D . H . Lee ) 한국축산학회 1990 한국축산학회지 Vol.32 No.11

For the evaluation of breeding values of animals, A trial to get solutions from the Iterative(SUR: Successive underrelaxation method) and the G-inverse was carried out using a sire model with 76 levels of 7 independent factors in this study. The results showed no differences between the solutions from directive(G-inverse) method and that from iterative method. For the four(0.1, 0.2, 0.3, 0.35) different relaxation factors(W) to speed up the convergence to the final solution, even though the number of rounds of interaction was affected, there were no differences in the final solutions. The numbers of rounds of iteration t get final solutions from a restriction({ b₁^n+1 - b₁} $lt;0.0001) under for the 0.1, 0.2, 0.3 and 035 relaxation factors were 1729. 928, 649 and 563 rounds respectively. It is the good iteration parameter(w) whether the convergence is speeded up or not. Since Iterative method is very simple to be programized and needs relatively small computer memory, it could be useful for solving large and complex equations in animal evaluation.

대한민국 걷기 좋은 길 : 번잡한 도심과 수려한 북한산을 양쪽에 품은 수평산책로 -북한산 둘레길

양영훈 대한지방행정공제회 2010 地方行政 Vol.59 No.685

선원 피로에 의한 해양사고 분석에 관한 연구

양영훈,배용기,장준혁,김홍태 해양환경안전학회 2018 해양환경안전학회 학술발표대회 논문집 Vol.2018 No.06

노출된 다공성 안와 삽입물에서 공여 부위에 따른 자가 진피지방 이식술의 치료 결과

양영훈,안민,Young Hoon Yang,MD,Min Ahn,MD,PhD 대한안과학회 2013 대한안과학회지 Vol.54 No.4

Purpose: To compare the outcomes of autogenous dermis fat grafting with different donor sites in the treatment of exposed porous orbital implants. Methods: The present study retrospectively evaluated the medical records of 17 patients (17 anophthalmic eyes) who had undergone autogenous dermis fat grafting based on the diagnosis of exposed porous orbital implants and were regularly followed up for at least 12 months since the surgery from January 2001 to December 2010. The patients were divided into 2 groups (thigh and abdomen) according to the site of the donor grafting. The treatment outcome and complications were compared between the 2 groups. Results: The success rate of thigh dermis fat grafting was 88.9% (8/9) and 100.0% (8/8) in the abdominal dermis fat grafting, and there was no statistically significant difference between the 2 groups (p = 1.000). Regarding ocular complications, graft tissue infection (thigh 11.1%, abdomen 0%) and superior sulcus deformity (thigh 22.2%, abdomen 25.0%) were present. Regarding donor site complications, tenderness (thigh 55.6%, abdomen 25.0%), dehiscence (thigh 22.2%, abdomen 25.0%) and scar formation (thigh 33.3%, abdomen 25.0%) were observed. In the gait associated complications, pain (thigh 55.6%, abdomen 25.0%) and limping (thigh 22.2%, abdomen 12.5%) were observed. The rate of all complications showed no statistically significant difference between the thigh dermis fat grafting and the abdominal dermis fat grafting (all p > 0.05). Conclusions: Thigh and abdomen can both be considered as an effective donor site for the autogenous dermis fat grafting in the treatment of exposed porous orbital implants.

한우의 체중과 체척치에 대한 일반능력

양영훈,오봉국,이문연,이득환 ( Y . H . Yang,B . K . Ohh,M . Y . Lee,D . H . Lee ) 한국축산학회 1990 한국축산학회지 Vol.32 No.11

The purpose of this paper is to investigate the performances of the body weights and the 11 body measurements of Hanwoo raised between 1987 and 1989 in farms and Hanwoo progeny test center. The body weights at birth, 6, 12, 18 and 24 months of age were 22.49kg, 148.18kg, 223.48kg, 267.76kg, and 291.77kg respectively. The body measurements were increased rapidly up to about 6 months of along with the body weight. Feeding managements and the nursing capacity of dam were considered important. factors to develop the body size of a calf early growing stage. As compared with the previous reports, for the body weights at 6 and 12 months of age and the measurements for body length, chest girth, and shank circumference at 6, 12 and 18 months of age were somewhat increased. This might be come from the improved feeding managements and the change of growth type by selection. The hipbones width(pinbones width), which had not been reported, at birth, 6, 12, 18 and 24 months of age were 8.96cm, 19.09cm, 19.26cm, 21.04cm, and 22.19cm respectively. The body measurements of 11 traits of male calves at 7 months of age shown to be similar to those of female calves at 12 months of age.

Transferrin 유전자빈도에 의한 제주마의 유전적 특성

양영훈,김남영 한국동물자원과학회 2004 한국축산학회지 Vol.46 No.1

To investigate genetic features and the allele distribution of transferrin gene in three Cheju horse groups(group Ⅰ, 137 horses of Jeju institute; group Ⅱ, 107 horses of farms; group Ⅲ, 89 racing horses) and three foreign breeds(103 Thoroughbred, 10 Mongolian and 5 American Quarter horses), transferrin gene exons 13, 15, and 16 were analyzed by SSCP. The allele frequencies of transferrin gene of these groups and breeds were used to calculate genetic distances and to test population differentiations. The Fst values were 0.067 between Cheju horse groups Ⅰ and Ⅱ, 0.070 between Cheju horse groups Ⅰ and group Ⅲ, 0.091 between Cheju horse group Ⅰ and Mongolian breed, and 0.189 between Cheju horse group Ⅰ and Thoroughbred breed, Cheju horse group Ⅰ showed significant population differentiation from other two Cheju horse groups and three foreign breeds while Cheju horse group Ⅲ showed significant population differentiation only from Cheju horse group Ⅰ and Thoroughbred breed)p,0.05). Results indicate that three Cheju horse groups showed population differentiation between each other, suggesting genetic heterogeneity of Cheju horses.

유전자 지문을 이용한 축우 품종별 유전 분석

양영훈,여정수,이은준,김재우,이문연 한국축산학회 1997 한국축산학회지 Vol.39 No.6

In the analysis of genetic characteristics based on results of DNA fingerprints of Korean native cattle (Hanwoo) and other cattles(Holstein, Charolais, Aberdeen Angus, and Simmental), the Korean native cattle was found to be the lowest in homozygosity and genetic similarity within breed, allelic frequency, band frequency, and band sharing. It can be suggested that Korean native cattle have more capacity of genetic improvement than others, in the other hand strategies for genetic improvement of Korean native cattle used until now need to be reappraised.