한우 도체의 품질 평가에 관한 연구 2 . 축산물 도매시장 출하우의 도체중 분포와 도체 단가의 변화

이길왕,정숙근 ( K . W . Lee,S . K . Cheong ) 한국축산학회 1983 한국축산학회지 Vol.25 No.4

This study was carried out to investigate the effect of carcass weight on characteristics of carcass grading and the price of carcass based on 3913 cattle slaughtered every 15 days at wholesale market in Seoul during 1980 and 1981 The results obtained are summarized as follows; 1. Of all cattle data analyzed, the percent of Korean Native Cattle, Holstein, and Others was 75.7, 18.4 and 5.9%, respectively. 2. The mean values of live weight and carcass weight were 428.36 and 226.66㎏, respectively aced dressing percent was 52.9%. 3. The carcass weight which was the most marketed at wholesale market was 209.1-229.0㎏. 4. When carcass weight was about 201.0㎏, the carcass was marketed to unit price of while the unit price of carcass tended to decrease as carcass weight was increased.

Saanen 과의 누진교잡에 의한 재래산양 개량 시험 제1보 Saanen 과 재래산양의 교잡종에 대한 월령별 체중변화

이길왕,최광수,설동섭,이기만 ( K . W . Lee,K . S . Choi,D . S . Sul,K . M . Lee ) 한국축산학회 1973 한국축산학회지 Vol.15 No.4

The data from 112 purebred and crossbred goats produced by matings of Korean native goats and Saanen, which were investigated at Livestock Experiment Station since 1963, were analysed by least square method to investigate changes of body weights of the native goats by grading up with Saanen. This procedure adjusted the measurement data for environmental effects of year of birth, age of dam and litter size. The results obtained were as follows; 1. The body weight was measured and adjusted at birth, weaning, 12 and 18 months of age as 1.83㎏, 6.99㎏, 14.51㎏ and 18.90㎏ in Korean native goats, 2.98㎏. 12.25㎏, 25.49㎏ and 36.93㎏ in purebred Sannen, 2.69㎏, 11.14㎏, 23.03㎏ and 29.27㎏ in the first filial generation, and 2.78㎏, 11.85㎏, 24.77㎏ and 36.19㎏ in the second graded generation, respectively. 2. The body weights of first filial and second generation were heavier than those of native goats through all months of age. The increment of body weight in the first filial generation to the native goats was 0.86㎏ at birth, 4.15㎏ at weaning, 8.50㎏ at 12 months and 10.37㎏ at 18 months of age. In the second generation the increment of body weight was 0.94㎏, 4.85㎏, 10.26㎏ and 17.29㎏, respectively. 3. The differences of body weight between purebred Saanen and the first generation were 0.28㎏ at birth, 1.11㎏ at weaning 2.4㎏ at 12 months and 7.6㎏ at 18 months of age, but significant difference was found only at 18 months of age (p$lt;0.01). The body weight of the second generation was slightly lighter by 0.20 to 0.75㎏ than that of purebred Saanen through all months of age. 4. The second generation was heavier than the first generation by 0.08㎏ at birth. 0.71㎏ at weaning, 1.73㎏ at 12 months and 6.92㎏ at 18 months of age, but significant difference was found after 18 months of age (p$lt;0.05).

Saanen 종과의 누진교잡에 의한 재래산양 개량시험 제2보 , Saanen 종과 재래산양의 교잡종에 대한 비유능력의 변화

이길왕,최광수,탁태영,설동섭,이기만 ( K . W . Lee,K . S . Choi,T . Y . Tak,D . S . Sul,K . M . Lee ) 한국축산학회 1975 한국축산학회지 Vol.17 No.1

The data from 393 purebred and crossbred goats produced by matings of Korean Native Goats and Saanen, which were investigated at Livestock Experiment Station since 1963, were analyzed by least-square method to investigate changes of milking performance of the Korean Native Goats by grading up with the Saanen. This procedure adjusted the measurement data for surveyed year, parity, mating system and for the number of kid born at one birth. The results obtained are as follows. 1. The milk productions of the Korean Native Goats, the first filial, the second, and the third graded generations were 423.91, 90.97, 288.12, 354.81 and 372.76㎏, respectively. Their milk fat percentages were 4.15, 5.72, 5.37, 4.30 and 4.24, respectively. Their lactation periods were 239.7, 173.2, 214.3, 236.2 and 234.2 days, respectively. 2. The milk performances of the first filial, the second, the third graded generation and Saanen were significantly higher than those of Native Goats. The increment of milk character is the filial, the second, and the third graded generation, compared to the Native Goats were 197.15, 263.94 and 281.79㎏ in milk production; 41.14, 63.05 and 61.05 days in lactation period; -0.34, -1.42 and -1.48% in milk fat percentage. 3. The difference of milk production, lactation period and milk fat percentage between the third and the second graded generation was 17.89㎏, -2.00 days and -0.06, respectively. The difference between purebred Saanen and the third graded generation was 51.15㎏ for milk production, 1.55 days for lactation period, and -0.08% for milk fat percentage. However there was no significant difference between them. 4. The individual comparisons among the least square estimates showed that the difference between the 3 and 1 kid per birth was 130.4㎏ for milk production, 29. 4 days for lactation period, and -0.7% for milk fat percentage. The difference between the 3 .and 2 kid per birth was 3.13㎏, 11.6 days and 0.02%, respectively. The difference between the 2 and 1 kid per birth was 41.6㎏, 17.8 days and 0.09%, respectively.

한우 번식우의 월동기 야외사육에 관한 연구 2 . 월동기 사육환경과 영양수준이 포유모우와 독우의 체중변화 및 번식능력에 미치는 영향

강수원(S . W . Kang),정창화(C . H . Jung),정연후(Y . H . Jung),이길왕(K . W . Lee),손용석(Y . S . Son) 한국축산학회 1988 한국축산학회지 Vol.30 No.2

This experiment was carried out to investigate the effects of wintering sites and nutritional levels on the body weight changes and reproductive performances of Korean Native Nursing Cows and Calves for winter season. Eighty four heads of nursing cows and calves, respectively, were kept at three different wintering sites (housed, outside and woody land) and two nutritional levels (100 and 150% of NRC recommendation) for 120 days every year from Nov. 30. 1982 to Mar. 29. 1985. In Alpine Experiment station, Daegwallyoung, Korea. The results obtained were summarized as follows 1. When the nursing caws were wintered at three different wintering sites with two nutritional levels, the body weight of the housed group was more slightly increased than any other group, but there was not significantly different among them. However, in the nutritional levels, the body weight of the nursing cows fed at 150% level of NRC recommendation was significantly higher (P$lt;0.05) as compared with that fed at 100% level of NRC and being compared the housed feeding with the out door feeding., it was appeared to be effect of the shelter (the housed feeding) in low level of nutrition (100% of NRC recommendation) but no in high level of nutrition (150% of NRC). 2. Effects of the high nutritional levels on the body weight gains at nursing cows for the wintering period were not prolonged until the time of ad libitum by grazing and the gains that were decreased or not sufficient in low nutritional levels was much more compensated than the high nutritional levels during the grazing season so that the total gains from wintering period to grazing season was tend to the same. 3. The wintering sites and the nutrition levels of nursing cows did not influence the body weight changes of fall calves for wintering season, and it is supposed that the suckled milk or heritability is more highly affected than the supported feed in the gain performance of suckling calves. 4. Being off the wintering season, it was appeared that the reproductive rate of nursing cows in out door feeding group was slightly higher than the housed feeding group, and in low level of nutrition than in high level of nutrition.

계란을 이용한 눈꽃동충하초 재배방법에 관한 연구

강한석 ( H. S. Kang ),손장호 ( J. H. Son ),이길왕 ( K. W. Lee ),김선구 ( S. K. Kim ),조병욱 ( B. W. Cho ),신택순 ( T. S. Shin ),전해열 ( H. Y. Jeon ) 한국유기농업학회 2003 韓國有機農業學會誌 Vol.11 No.1

This study was conducted to established method of culture for Paecilomyces japonica using an egg. Mycelia grew favorably at the temperature of 22~26℃ on eggs. 5.1g of dry matter basis(average 7.2㎝ of longer and 199.6 of numbers) of artificial fruiting bodies were harvested at 60 days after inoculation from one of egg. Commercial fruiting bodies of Paecilomyces japonica from silkworms was used for comparative nutriental contents. Cordycepin contents of fruit bodies of Paecilomyces japonica cultivated on eggs and silkworms were not significantly different. Crude fat contents of fruiting bodies of Paeilomyces japonica cultivated from eggs was significantly higher than from silkworms(P<0.05). Mn and Cu contents of fruiting bodies of Paecilomyces japonica cultivated from silkworms were significantly higher than from eggs(P<0.05),but Na, Mg, Fe and Zn contents were significantly higher from eggs(P<0.05). Glycine, Arginine and Proline contents in the fruiting bodies of Paecibmyces japonica cultivated from silkworms were tend to higher than from eggs, but Serine, cystein, methionine, isoleucine and phenylalanin were tend to higher from eggs. These results were made possible that possible mass production of artificial fruiting bodies of Paecilomyces Japonica cultivated on eggs.

육계사료와 식용유 정제 폐백토(Spent Bleaching Clay) 급여가 육계의 생산성에 미치는 영향

전해열,손장호,이길왕,김선구,강한석,신택순,조병욱,Jeon H. Y.,Son J. H.,Lee K. W.,Kim S. K.,Kang H. S.,Shin T. S.,Cho B. W. 한국가금학회 2005 韓國家禽學會誌 Vol.32 No.4

본 연구는 Spent Bleaching Clay(SBC)를 육계사료의 에너지 공급원으로 활용 가능성을 구명하기 위하여 실시하였다. 부화 직후의 120수의 병아리(한협 3호)를4처리 3반복, 반복당 10수(암수 각각 5수씩)를 Control(T1) 사료에 SBC를 $2.0\%(T2),\;4.0\%(T3)$ 및 $6.0\%(T4)$ 첨가한 4처리로 배치하였다. 시험사료 급여전 1주일은 시판사료를 급여하였다. 4주간의 시험 기간동안 증체중 및 사료 섭취량은 T3 및 T4 처리구에서 증가하는 경향이 인정되었다. 사료효율은 T3구에서 개선되는 경향이 인정되었다. 가슴살 및 다리살에서 치방산 조성을 사료의 처리에 따른 효과는 인정되지 않았다. 육계 초기 및 후기 사료 급여시 모두, 사료중의 건물, 조단백질 및 조지방 이용율은 T4 처리구가 다른 처리구에 비해서 유의하게 감소하였으며(p<0.05), 대사에너지가도 T4 처리구가 다른 3구에 비해서 유의하게 저하하였다(p<0.05). 사료중의 조회분의 이용율은 사료의 처리에 따른 차이는 인정되지 않았다. 결론적으로 본 시험의 결과 육계사료에 $2\~4\%$의 SBC첨가는 육계의 성장 및 사료효율 개선의 가능성이 있음이 사료된다. This study was conducted to evaluate the feasibility of spent bleaching clay(SBC) as an energy resource for meat type chicks. A total of one hundred twenty 1-d old broiler chicks(Han-hyop, No. 3) were divided into four groups and each group was assigned to one of the following diets: 0(T1), 2.0(T2), 4.0(T3) and $6.0\%$ SBC(T4). Each treatment had 3 replications of 10 birds. Before feeding experimental diets, they were fed a commercial diet for a week Body weight gain and feed intake tended to increase in T3 and T4, respectively. Feed efficiency(feed intake/ gain) tended to decrease in T3 compared to other groups. Fatty acid composition of breast and thigh meat was not significantly affected by feeding SBC. Utilization of dry matter, energy, crude protein and crude fat was lower in T4 than in the other groups during both starter and finisher periods(p<0.05). Crude ash utilization was not significantly affected by feeding dietary SBC. These results indicate that broiler diets may be supplemented with 2 to $4\%$ SBC without adverse effect on growth.

검정소 검정돈의 품종 및 환경요인의 효과 추정

박종원,김병우,김현철,이길왕,최진성,강왕근,홍성광,하정기,전진태,이정규 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.6

This study was carried out to estimate the effects of breed and environment such as sex, test station, test year, test season, parity, initial and final weight on average daily gain, age at 90㎏, backfat thickness, feed efficiency, lean percent and selection index on the basis of the performance data collected from 25,790 pigs of Duroc, Yoskshire and Landrace breeds which were performance-tested at the Korea Swine Testing Station from 1991 to 2002. The results obtained in the study are summarized as follows; 1. The means of the major economic traits were estimated as 959.95 ± 0.699g for average daily gain, 138.36 ± 0.072days for age at 90㎏, 1.41 ± 0.001㎝ for backfat thickness, 2.33 ± 0.001 for feed efficiency, 56.71 ± 0.018% for lean percent and 221.65 ± 0.113 for selection index. 2. The effect of breed was statistically significant for all studied traits. Briefly, Duroc showed the best per-formance for the average daily gain and age at 90㎏. Landrace had the best performances for the backfat thickness and lean meat percent. In feed efficiency and selection index, Yorkshire had a better score than other breeds. 3. The least-squares means of female and male for the traits studied were 923.05 ± 1.289g and 974.53 ± 0.856g for average daily gain, 139.74 ± 0.145days and 137.21 ± 0.097days for age at 90㎏, 1.49 ± 0.002㎝ and 1.39 ± 0.002㎝ for backfat thickness, 2.43 ± 0.002 and 2.28 ± 0.002 for feed efficiency, 56.43 ± 0.034% and 56.81 ± 0.023% for lean percent and 211.37 ± 0.194 and 224.61 ± 0.129 for selection index. Therefore, males were superior to females for all traits examined. 4. The effect of test station was statistically significant for all traits except for selection index. Performances for age at 90㎏, backfat thickness, feed efficiency and lean meat percent collected from Test station 2 were higher than those from Test station 1. However. Test station 1 showed better average daily gain. 5. The initial weight and final weight included as a covariate in this study had a significant influence on average daily gain, age at 90㎏, backfat thickness, feed efficiency and selection index. From the absolute values of the estimated regression coefficients, it was inferred that the final weight had greater effect for the investigated traits than the initial weight.

전산관리 양돈농가의 번식성적에 미치는 요인에 관한 연구

김효선,김병우,김현철,이길왕,하정기,전진태,이정규 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.6

This study was conducted to investigate effects of farm, type of sow Landrace × Yorkshire, LY ; Yorkshire × Landrace, YL ; Yorkshire × Yorkshire, YY and multi-cross bred sow, MBS), parity, farrowing year, farrowing season and mating method on reproductive traits such as total number born per litter, number of born alive per litter, number of weaned per litter, number of mummified per litter, number of stillbirth. The Reproductive Records of 3,387 litters from January, 1999 to September, 2002 were obtained from four pig farms managed by Electronic Data Processing(EDP) system. Reproductive performances for two types of F! Sows(YL and LY) were estimated as 11.34 ± 0.266 and 11.57 ± 0.263 heads for total number of bom alive per litter, and 10.05 ± 0.131 and 9.96 ± 0.153 heads for number of weaned per litter, respectively. These records are significantly higher(P<0.05) than those of YY and MBS. However, number of mummified per litter, number of stillbom per litter, number of dead by diarrhea per litter, number of dead by other reasons during lactating period per litter and estrus interval did not show significant difference between types of sows. There were more total number of born per litter and number of weaned per litter in year 2001 than other year. As year passed, number of dead by crush per litter, number of dead by diarrhea per litter and number of dead by other reasons during lactating period per litter reduced from 0.18 ± 0.023 to 0.07 ± 0.022 head, 0.12 ± 0.21 to 0.02 ± 0.020 head and 0.43 ± 0.041 to 0.22 ±0.040 head, respectively and weaning rate increased from 0.94 ± 0.005% to 0.97 ±0.005%. The total number of born per litter and number of born alive per litter were higher(P<0.05) in the case of mating twice than mating once. The number of weaned per litter, number of mummified per litter and number of stillborn per litter were not significant(P<0.05) between mating methods. Estrus interval was shorter on the occasion of twice artificial insemination(5.24 ± 0.153days) than twice natural mating(6.54 ± 0.466days).

개의 친자감정을 위한 Microsatellite DNA 다형성 분석

조길재,조병욱,김선구,이길왕,김영규 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.2

국내에서 사육중인 치와와 31두, 풍산개 20두, 래브라도 리트리버 8두를 대상으로 microsatellite DNA형의 유전자 빈도에 기초하여 heterozygosity, PIC, 그리고 PE를 분석한 결과를 요약하면 다음과 같다. 치와와의 대립유전자 수는 4∼14개로서 expected heterozygosity와 PIC는 각각 0.432∼0.883 (평균 0.711), 0.397∼0.856(평균 0.659)으로 나타났으며 PEZI, PEZ3, PEZ6, PEZ10, PEZ12의 marker는 PIC 0.7이상으로 나타났고 14개 marker를 조합시 부권부정율은 0.9999로 관찰되었다. 풍산개의 대립유전자 수는 2∼9개로서 expected heterozygosity와 PIC는 각각 0.262∼0.817 (평균 0.559), 0.222∼0.772 (평균 0.503)으로 나타났고 PEZ1, PEZ6, PEZ13의 marker는 PIC 0.7이상으로서 16개 marker를 조합시 부권부정율은 0.9991로 관찰되었다. 래버라도 리트리버의 대립유전자 수는 3∼5개로서 expected heterozygosity와 PIC는 각각 0.425∼0.808(평균 0.660), 0.354∼0.717(평균 0.563)으로 나타났고 PEZ8, PEZ12의 marker는 PIC 0.7이상으로 관찰되었으며 12개 marker를 조합시 부권부정율은 0.9968로 관찰되었다. 이상의 결과는 microsatellite DNA형에 의한 개의 친자감정 및 개체식별에 유용한 자료로 활용할 수 있을 것으로 사료된다. This study was carried out to investigate a usefulness of the microsatellite DNA markers for individual identification and parentage verification in three dog breeds. A total of 59 random dog (31 Chiwawa, 20 Poongsan, 8 Labrador Retriever) samples were genotyped by using 14 markers (Chiwawa dog), 16 markers (Poongsan dog), and 12 markers (Labrador Retriever dog) among the 17 international standard markers (PEZ1, 3, 5, 6, 8, 10, 11, 12, 13, 15, 16, 17, 20, 21, FHC2010, FHC2054 and FHC2079), respectively. The number of alleles per locus varied from 4 to 14 with a mean value of 6.07 in Chiwawa dog, 2 to 9 with a mean of 4.75 in Poongsan dog, and 3 to 5 with a mean of 4.00 in Labrador Retriever dog. Observed heterozygosity was ranged 0.419~0.968 (mean 0.755), 0.300~0.950 (mean 0.597) and 0.125~0.750 (mean 0.604), and expected heterozygosity was ranged 0.432~0.883 (mean 0.711), 0.262~0.817 (mean 0.559) and 0.425~0.808 (mean 0.660) in these three dog breeds. PIC value was ranged 0.397~0.856 (mean 0.659), 0.222~0.772 (mean 0.503) and 0.354~0.717 (mean 0.563) in these three dog breeds. Of the 17 markers, PEZ1, PEZ3, PEZ6, PEZ10, PEZ12 loci, PEZ1, PEZ6, PEZ13 loci, and PEZ8, PEZ12 loci have relatively high PIC value (>0.7) in Chiwawa dog, Poongsan dog and Labrador Retriever dog, respectively. The exclusion probability was ranged 0.240~0.741, 0.111~0.616, and 0.198~0.529, and the combination of microsatellite loci was 0.9999, 0.9991, and 0.9968 in Chiwawa dog, Poongsan dog and Labrador Retriever dog, respectively. These results can give basic information for developing parentage verification and individual identification system in these three dog breeds.

양질 녹용의 대량 생산기술 개발

이길왕,김상우 密陽大學校 生命資源開發硏究所 2002 生命資源開發硏究 Vol.6 No.-

Deer (Cervidae) have been important to human since a long time ago. They were valuable for human being as sources of meat, skins for clothing and bones and antlers for tools and weapons. Deer have been an important game and sporting animal in the world, and in the oriental countries, especially in Korea, China and Taipei, they have been a precious being for human health as its velvet for Chinese medicine over the last hundred years. Because deer are now becoming valuable farm animals, they are numerous in many temperate areas. Our country has the largest market and has been most imported for velvet, the main products of deer farming, in the world. There was rapid development of deer farming in our country shared with much consumption of velvet. By the results of our researches, velvet production was the main source of income in deer farming, but the production was not efficient due to unscientification of feeding management. And also the feed was used with those for other animals in most deer farm and yet feed for deer was not development in earnest. It has been caused by immoderate introduction of foreign data for venison production or for goat and no establishment of standard feeding system which is suitable in the actual condition of our deer farming for velvet production. This study was conducted in order to development of the producing technique of young antlers of good quality in deer. Casting of staghorn was achieved on 16day±3day after MPA treatment. Could advance about month that do pleasure the time of horn casting account as that MPA treatment. It was no difference between control group and MPA group for yield of velvet antlers of the deer by each 712g and 718g. Testosterone density in blood looked tendency that increase according as growth of velvet antlers of the deer is proceeded. Testosterone level that is concerned at horn casting for keratinization of velvet antlers of the deer MPA group did not increase greatly. IGF-1 density in blood looked tendency that decrease according as young antlers of the deer growth is proceeded. IGF-1 level of MPA group is higher than control group at staghorn cutting.