종돈의 능력검정에 미치는 성 및 환경요인의 효과

김계웅(G . W . Kim),장현기(H . G . Jang),박홍양(H . Y . Park) 한국축산학회 1995 한국축산학회지 Vol.37 No.2

This study was carried out in order to investigate the effects of sex, farrowing year, and farrowing month on the performance test for purebred swine. Data used in this study were 6,472 records of Hampshire, Landrace, Yorkshire and Duroc breeding stock which were registered at the herd book of Korea Animal Improvement Association. Their performance tests were conducted at the first and second Swine Performance Station from 1986 to 1992. Age at 30㎏ and 90㎏, daily gain, feed conversion, backfat thickness, and selection index were estimated according to sex, farrowing year, and farrowing month by Generalized Linear Model of SAS. The results obtained were summarized as follows; 1. In age at 30㎏, there were highly significant differences in the breeding females with the average of 75.41±1.10 days for the effect of sex, in 1992 with the average of 74.96±1.11 days for the effect of farrowing year, and the effect of farrowing month was significantly difference on December with the average of 74.48±1.12 days. In age of 90㎏, the effect of sex was significantly better in breeding male with the average of 142.98±1.52 days than in female, the effects of farrowing year and month were highly significantly best in 1992, and on December, respectively. 2. Daily gain of breeding males with the average of 915.14±13.77g was significantly superior to that of females. The effects of furrowing year and month were significantly superior in 1991 with the average of 918.29±14.07g, and on December with the average of 911.13±14.28g, respectively, for the daily gain. In feed conversion, there are highly significant differences between males and females, the effects of furrowing year and month are significantly superior in 1992 with the average of 2.38±0.02, and on December with the average of 2.55±0.02, respectively. 3. In backfat thickness, the effects of sex, farrowing year, and farrowing month were highly significantly superior in breeding males with the average of 1.58±0.03㎝, in 1992 with the average of 1.49±0.03㎝, and on October and December with the average of 1.56±0.03㎝, respectively. In selection index, the effects of sex, furrowing year, and furrowing month were highly significantly superior in breeding males with the average of 194.05±2.18, in 1992 with the average of 192.46±2.26, and on December with the average of 192.46±2.26, respectively.

무지개 송어의 유전 육종학적 연구 1 . 성성숙 단계의 호르몬 농도

김계웅(G . W . Kim),윤종만(J . M . Yoon),박홍양(H . Y . Park) 한국축산학회 1990 한국축산학회지 Vol.32 No.12

This study was undertaken to understand changes of hormone levels of rainbow trout(Oncorhynchus mykiss) measured by ELIA at approximately monthly intervals from October/`89 to February/`90. Sexual maturation was studied on 100 rainbow trout females. The results obtained in this study were as follows l. Under the normal light, serum LH levels were at the peak in November. 2. Under the normal and no light, serum FSH levels began to decrease progressively from October to February. 3. Serum estradiol-17β levels under the no light showed about 23 times higher than those under the normal light from January/`90 to February/`90. 4. Under the no light, serum progesterone levels showed at the peak in November. 5. Serum LH, FSH, estradiol-17β and progesterone levels began to decrease abruptly following hand stripping. 6. Serum LH had significantly different effects(p $lt;0.001) upon serum FSH and estradiol-17β. 7. Serum FSH had significantly different effects(p $lt;0.001) upon serum estradiol-17β. 8. Correlation coefficient of serum LH and FSH was +0.844. 9. Correlation coefficient of serum LH and estradiol-17β was +0.947. 10. Correlation coefficient of serum FSH and estradiol-17β was +0.894.

무지개 송어의 유전 육종학적 연구 5 . 산란기중 혈청 호르몬 농도와 혈청성분 수준과의 상관관계

김계웅(G . W . Kim),윤종만(J . M . Yoon),박홍양(H . Y . Park) 한국축산학회 1992 한국축산학회지 Vol.34 No.2

This study was carried out to investigate correlationships between serum hormones such as LH, FSH, estradiol-17β and progesterone. and serum components (12 components) obtained from 120 of 3-year-old female rainbow trout (Oncorhynchus mykiss). All data were collected and analysed monthly from March in 1989 to February in 1990. The results obtained in this study were as follows : The correlation between serum LH and BUN during spawning period was highly negative (r=-0.793), while the correlations of LH with creatinine and total protein were high (r=0.887 and 0.688. respectively). Similarly, the relationships of serum FSH with creatinine (r=0.831) and total protein (r=0.709) were significantly highly positive. The concentration of estradiol-17β was highly correlated with creatinine, total protein. and triglycerides. But the relation between serum progesterone and BUN was significantly negative (r=-0.606). Ultimately, three kinds of hormones such as LH, FSH, estradiol-17β in female rainbow trout, seemed to be correlated with serum components associated with vitellogenesis and oogenesis.

종돈의 능력검정에 미치는 품종 및 혈통의 효과

김계웅(G . W . Kim),장현기(H . G . Jang),박홍양(H . Y . Park) 한국축산학회 1995 한국축산학회지 Vol.37 No.5

This study was carried out to investigate the effects of breed, sire and dam pedigree on the performance of imported purebred swine. Data used in this study was 6,472 records of Hampshire, Landrace, Yorkshire and Duroc breeding stock which were registered in the herd book of the Korea Animal Improvement Association. Their performance tests were conducted at the first Swine Performance Station from 1986 to 1992. Age at 30㎏ and 90㎏, average daily gain, feed conversion, backfat thickness, and selection index were estimated according to a breed, sire and dun pedigree by the Generalized Linear Model of SAS. The results obtained are summarized as follows ; 1. In age at 30㎏, the effects of a breed, sire and dam pedigree were highly significantly superior in Landrace with the average of 74.17±1.08 days, in progeny from Danish breeds with the average of 7295±096 days, and in progeny from American breeds with the average of 72.73±0.89 days. In age at 90㎏, the effects of a breed, sire and dam pedigree were significantly superior in Duroc with the average of 141.23±1.53 days, in progeny from Swedish breeds with the average of 137.90±4.03 days. and in progeny from American breeds with the average of 140.62±1.22 days. 2. In daily gain, the effects of breed, and sire pedigree were significantly superior in Durocs with the average of 927.49±13.89 g, and in progeny from Irish breed with the average of 911.961±36.95 g. However, there was not a significant difference in effect of a dam pedigree on that. In feed conversion, the effects of breed, and sire pedigree were significantly superior in Yorkshires with the average of 2.54±0.02 and in Denmark progeny with the average of 2.55±0.02. However, there was no significant effect of dam pedigree on that. 3. The effects of breed, sire and dam pedigree in backfat thickness were significantly thick in Landrace with the average of 1.52±0.03 ㎝, on progeny from Canadian breeds with the average of 1.50±0.03 ㎝, and in progeny from Swedish breeds with the average of 1.45±0.10 ㎝, respectively. In selection index, there were significantly superior difference in Duroc with the average of 190.58±2.19 For the effect of breed, and in progeny from Irish breeds with the average of 192.50±5.87 for the effect of sire progeny, and then, in Taiwan progeny with the average of 193.89±6.82 for the effect of darn pedigree.

후보모돈의 실내.외 사육방식이 번식 및 이유성적에 미치는 영향

김계웅,옥영수,김석은,Kim, G.W.,Ok, Y.S.,Kim, S.E. 한국축산환경학회 2009 축산시설환경학회지 Vol.15 No.1

본 연구는 충남 당진군소재 대규모 양돈장에서 2007년 7월 1일부터 2008년 6월 30일까지 762복의 후보모돈에 대한 실내 외 돈방별 사육환경이 초산차 번식 및 이유형질에 미치는 효과를 조사 분석하여 양돈농가의 모든 생산성 향상을 위한 기초 자료를 제공하고자 실시하였으며, 그 연구한 결과를 요약하면 다음과 같다. 1. 실내 외 사육장소간에는 유의한 차이없이 서로 비슷한 임신기간으로 각각 116.11일과 116.12일로 나타났다. 분만율은 운동장사육 후보돈에서 92.54%로 군사방 후보모돈 91.57% 보다 약간 높은 경향이었으나, 두 집단간에 유의성은 없었다. 2. 총산자수는 운동장사육 모돈 10.44두, 군사돈방 모돈 9.46두와 포유개시두수는 운동장사육 모돈이 9,77두, 군사돈방 모돈이 8.59두로 조사되었다. 운동장사육 후보모돈에서 군사돈방 후보모돈 보다 총산자수는 0.98두, 그리고 포유개시두수는 1.18두로 유의하게 양호한 성적을 보였다(p<0.001). 3. 사산수(율)는 운동장 후보모돈이 0.22두(2.10%), 군사돈방 후보모돈이 0.33두(3,53%)로 운동장사육 후보 모돈이 유의하게(p<0.01) 양호하였다. 운동장사육 후보모돈과 군사돈방 모돈의 도태두수는 각각 0.23두(2.27%)와 0.26두(2.77%)로써 서로 비슷한 성적을 보였다. 그리고 미이라 발생두수에서도 운동장과 군사돈방이 각각 0.21두(2.0%)와 0.28두(2,29%)로 사육 돈방간에 유의성 없이 비슷한 결과를 보였다. 4. 이유두수는 군사돈방보다 운동장에서 사육한 후보모돈이 1.22두가 유의적으로(p<0.001) 높은 성적을 보였다. 이유일령은 운동장과 군사돈방에서 각각 22.39일과 23.21일로써, 군사돈방 후보모돈보다 운동장 사육 후보모돈에서 유의적으로 짧았다(p<0.001). 자돈 이유육성율은 운동장과 군사돈방 후보모돈에서 각각 97.13%와 96.65%로 두 사육집단간에는 유의성 있는 차이는 없었다. 이상의 결과를 보면 군사돈방에서 사육한 후보모돈보다 운동장사육 후보모돈이 초산차의 번식능력이나 이유성적 등이 비교적 양호한 것으로 나타났다. This study was conducted to analyze the effects of sow breeding environment on the reproduction in the first litter in a large-sized hog farm, located in Dangjin-gun, Chungnam from July 1st, 2007 to June 30th, 2008 and provide basic information to improve the sow productivity in a family farming sows. The results obtained were as follows; 1. The gestation periods were proved to be similar without significant differences between indoor and outdoor breeding grounds, The average of farrowing rate was 91.91%, and 92.54% farrowing rate of out-door ground breeding sows was slightly greater than 91.57% of group-housed sows, but there was no significance between two groups. 2. The average of total litter size and the number of born alive per litter were 9.81 and 9.02, respectively. The number of total number was 0.98 and the number of born alive per litter was 1.18 in the outdoor-ground breeding sows, which was significantly greater than group-housed sows(p<0.001). 3. The number(rate) of piglets stillborn was 0.22(2.10%) from the outdoor-ground breeding sows was significantly greater, compared with 0.33(3.53%) from group-housed sows(p<0.01). The number of piglets culled was 0.23(2.27%) and 0.26(2.77%), in the out-door ground breeding sows and in group-housed sows, respectively and it was not significantly similar between two groups. And, the number of mummies was 0.21(2.1%) and 0.28(2.29%), in the out-door ground breeding sows and in group-housed sows, respectively, which showed no significance. 4. The weaning number in the playground breeding sows was 9.48 and it was significantly greater than that in the group-housed sows(p<0.001). The average of weaned age was observed to be 22.91 days. The weaned age in the out-door ground breeding sows was 22.39 days, and it was significantly smaller than that in group-housed sows(p<0.001). The breeding rate for the weaning of pigs was satisfactory as 96.82%, but there was no significant difference between two groups.

한우농가의 동물약품 이용실태 분석

김계웅,구승회,Kim, G.W.,Koo, S.H. 한국축산환경학회 2011 축산시설환경학회지 Vol.17 No.1

본 연구는 설문지를 이용하여 한우사육 114농가를 대상으로 2010년 5~6월까지 조사하였다. 동물약품이용실태를 파악하고, 항생제 규제에 따른 대체제 이용방향 등을 통하여 한우농가에 필요한 동물약품 사용과 연구에 기초적 자료를 제공하고자 실시되었으며, 그 결과를 요약하면 다음과 같다. 전체 한우농가에서 가장 선호하는 동물약품 종류는 생균제 (40.4%)로 나타났으며, 그 다음으로는 항생제류 (28.1%), 백신류 (19.3%), 면역제제류 (12.3%) 순으로 나타났다. 지역별 (p<0.05)과 농가규모별 (p<0.05) 동물약품 선호도에서 각각 유의한 차이를 보였는데, 이는 지역이나 규모에 따라 관행적 사용에 기인한 것으로 나타났다. 동물약품 선택 시 고려요인으로는 효능 (31.6%), 가격 (19.3%), 환경 (17.5%), 부작용 (15.8%) 순으로 나타났다. 지역별로는 선택기준이 유의성있는 차이가 인정되었으나 (p<0.05), 사육규모별에서는 유의성있는 차이가 나타나지 않았다 (p>0.05). 동물약품구입경로에 대한 조사에서는 관납(41.6%)이 가장 많았으며, 동물약국 (30.7%), 수의사 (24.6%) 순으로 나타났다. 지역별로 분석에서는 매우 높은 유의성 (p<0.001)을 보였고, 사육규모별로 구입경로는 유의성 있는 차이가 없었다 (p>0.05). 항생제 구입빈도는 1회이하/년 (38.6%)가 가장 많았으며, 그 다음은 1회/4~6월 (24.6%), 1~2회/월 (23.7%), 1회/2~3월 (13.2%) 순으로 나타났다. 지역별로는 높은 수준의 유의적인 차이 (p<0.01)로 구입 빈도가 나타났으나, 규모별로는 유의적인 차이가 없었다 (p>0.05). 항생제 대체제에 대한 조사에서는 생균제류 (50.9%)가 가장 많이 차지하였으며, 그 다음으로는 면역제제류 (24.8%)와 백신류 (24.8%)로 나타났다. 지역별 대체제로는 매우 높게 유의적인 차이 (p<0.001)를 보였으나, 규모별로는 유의성있는 차이가 없었다 (p>0.05). 한우농가에서는 앞으로 항생제 대체제로 생균제를 더욱 많이 사용할 것으로 나타나 질병치료나 예방관리에 효율적 활용이 요구된다. This study was conducted to investigate the actual situation of animal medicine use in Hanwoo farms, which were a total of 114 farms. Items surveyed were preference of animal medicine, choice criterion, purchase route, purchase frequency, antibiotics substitution products, etc. Data were collected from May to June, 2010. The kinds of animal medicine which preferred in Hanwoo farms is probiotics (40.4%). Whereas the lowest preference is immunizing agent (12.3%). There was significant difference among regional group (p<0.05), and the significant difference was also found in different farm size group (p<0.05). The factor of choice for purchase of animal medicine was efficiency (31.6%), first of all. There was significant difference among regional group (p<0.05). The purchase route of animal medicine was mostly supplied with the help of government (41.6%). The significant difference were showed in regional group (p<0.05). But that was not found in farm size group (p>0.05). The highest frequency at purchasing antibiotics was less than 1 time per 1 year (38.6%). There was statistically significant difference among regional group (p<0.05). However, there was not significant difference among farm size group (p>0.05). Probiotics of antibiotics substitution products was mostly preferred (50.9%).

양돈농가의 계절에 따른 번식 및 이유성적 분석

김계웅,Kim, G.W. 한국축산환경학회 2009 축산시설환경학회지 Vol.15 No.2

본 연구는 충남 보령시에 위치하고 있는 총 15개 양돈농장 10,394 복의 번식모돈을 대상으로 2007년 4월부터 2008년 3월(1년간)까지 전산경영기록 자료 중 번식능력과 이유성적을 조사 분석하여 양돈농가의 생산성향상을 위한 번식모든의 경영지표 설정에 필요한 기초적 자료를 얻고자 실시하였는데, 그 결과를 요약하면 다음과 같다. 1. 평균 상시 모돈수는 314.10두로 가족노동 경영규모보다는 비교적 컸다. 계절간의 상시 모든 사육두수는 유의한 차이가 없이 비슷한 수준으로 사육하고 있었다. 평균 분만률은 78.77%로 보통 수준으로 조사되었다. 계절간 분만률은 유의한 차이 (p<0.05)가 있었는데, 여름 분만률이 가장 높고 겨울은 가 장 낮았다. 2. 평균 복당 산자수는 11.04두로 비교적 양호하였다. 계절간에는 통계적으로 유의한 차이가 없으나 여름 산자수는 다소 높고, 겨울에는 낮은 경향을 보였다. 그리고 포유개시두수는 평균 10.22로 조사되었으며, 계절간에는 유의한 차이가 없이 서로 비슷한 성적을 보였다. 3. 평균 이유두수는 9.23두로 다소 낮은 성적이었다. 계절별로는 통계적으로 유의한 차이가 없이 서로 비슷한 경향을 보였다 평균 이유 일령은 25.77일로 보통 수준으로 나타났다. 계절간의 이유 일령은 유의한 차이는 없으나 겨울에는 26.25일로 다소 이유 일령이 긴 경향을 보였다. 그리고 이유 자돈의 육성률은 91.48%로 다소 낮은 성적으로 조사되었다. 계절간 간에는 유의한 차이(p<0.05)를 보였는데, 역시 겨울에 89.22%의 육성률로 낮은 결과를 가져왔다. 4. 평균 모들 회전율은 2.25회로 보통수준으로 조사되었다. 계절간에는 유의한 차이는 없이 서로 비슷한 평균치를 나타났다. 연간 자돈생산 두수는 평균 20.75두로 비교적 낮은 성적을 보였다. 계절간에는 유의성 있는 차이 (p<0.05)가 있었는데, 봄과 여름보다는 가을과 겨울 두수가 저조하였다. 그리고 출하체중은 평균 110.46kg으로 나타났으나 계절간에는 유의한 차이가 없이 겨울 출하체중은 다소 가벼운 경향을 보였다. This study was carried out to investigate the reproductive and weaned performances in sow farms, which located in Boryeong city, Chungnam. Data surveyed a total of 10,394 litters of sow recorded from April, 2007 to March, 2008 were collected and analyzed. The results obtained were as follows; 1. The average of number of sow and farrowing rate were 314.10 sows and 78.77%, respectively. And then, there was not significant difference among seasons in number of sows, but significant difference among season was found in farrowing rate (p<0.05). 2. The average of litter size at farrowing and at initial sucking were 11.04 and 10.22 pigs, respectively. The significant differences were not all found in litter size among seasons. 3. The number of pigs, age and growth rate at weaning were 9.23 pigs, 25.77 days and 91.48%, respectively. The significant differences among seasons were not found in number of pigs and age at weaning. However, there was significant difference in growth rate at weaning (P<0.05). 4. The average of farrowing rate of sows per year, pigs from sow per year (PSY), and body weight at marketing were 2.25 times, 20.75 pigs, and 110.46 kg, respectively. The significant differences among seasons were not found in farrowing rate per year and weight at marketing, but that was found only in PSY (p<0.05), respectively.

동물생명공학 : 중합효소 연쇄반응을 이용한 돼지 내인성 레트로 바이러스의 검출과 분류

이동희 ( D. H. Lee ),이정은 ( J. E. Lee ),김훈미 ( H. M. Kim ),김계웅 ( G. W. Kim ),박홍양 ( H. Y. Park ),김영봉 ( Y. B. Kim ) 한국동물자원과학회 ( 구 한국축산학회 ) 2007 한국축산학회지 Vol.49 No.3

Isabrown 種 産卵鷄의 一般能力과 成長過程에 따른 血淸成分 水準의 變化

金桂雄,趙範衍 公州大學校 資源科學硏究所 1996 資源科學硏究論文集 Vol.4 No.-

This study was carried out in order to investigate the general performances of main characteristics at sexual maturity and the level of serum components according to growing stage from age at 70 days up to age at first egg in 16 layers. The correlation coefficients among serum components were estimated for analysis of interaction on vitellogenesis at age of 70 days, 110 days, and sexual maturity, respectively. The results obtained from this experiment were as follows; 1.Age at first egg, body weight, egg weight, shell weight, and shell thickness at first egg in Isabrown layers were 163.31±1.58 days, 2,054.38±33.38g, 52.67±1.87g, 4.60±0.20g, and 0.34±0.01mm, respectively. 2.The contents of serum total protein, albumin, glucose, calcium, phosphorus, SGPT, and ALP increased highly significantly (P<0.01) according to increment of age. Cholesterol and SGOT had tendency to decrease from age of 70 days to that of 110 days, but increase highly significantly (p<0.01) at age of first egg, sexual maturity. The content of globulin decreased gradually highly significantly (p<0.01) according to increment of age up to sexual maturity. The serum CPK and LDH enzymes decreased very highly significantly (p<0.01) according to increment of age. 3.On growing chickens at age of 70 days, the content of serum total protein was highly significantly correlated with globulin (r=0.912),glucose (r=0.533), respectively. The correlation between albumin and CPK was significantly negative with coefficient of -0.461. The content of globulin was significantly positively correlated with glucose (r=0.629), and CPK (r=0.593),respectively. The correlation between CPK and LDH was significantly negative with coefficient of -0.534. 4.On age at 110 days, the correlation between serum total protein and globulin was highly significantly positive coefficient with 0.826. The content of albumin was highly significantly correlated with globulin (r=-0.644), phosphorus (r=0.602), and SGPT (r=0.456). The cntent of glucose was significantly correlated with CPK (r=0.533), and LDH (r=0.571). The correlation coefficient between ALP and CPK was 0.508, significantly positive. 5.On age at first egg, the content of serum total protein was significantly correlated with globulin (r=0.887), and LDH (r=0.495),respectively. The correlations between albumin and globulin, between calcium and CPK, between phosphorus and ALP, and between SGOT and ALP were significantly negative with coefficient of -0.589, -0.542,-0.512, and -0.497, respectively. Otherwise, the content of CPK was significantly positively correlated with LDH (R=0.483).

돼지의 주요 경제형질에 미치는 환경요인의 효과

김계웅,박홍양,조영춘 한국축산학회 1999 한국축산학회지 Vol.41 No.1

The effects of breed, sex, parity, farrowing year, and farrowing month on the major economic traits were investigated on 6,948 pigs of three breeds, Duroc, Landrace and Large White. Overall average daily gain at the age up to reaching 90㎏ of body weight was 829±1.30g. And overall mean age, backfat thickness, body length and height at 90㎏ of body weight were 154±0.14 days, 1.31±0.38㎝, 110±0.08㎝ and 62± 0.04 ㎝, respectively. The effects of breeds on major economical traits were significant statistically(P$lt; 0.05). Duroc showed the highest values of average daily gain and body height, and the shortest age at the 90㎏ of body weight. Meanwhile Landrace had the thinest backfat thickness and the longest body length. Sex, parity, furrowing year and month also significantly(P$lt; 0.05) influenced on the economical traits examined.