이년계 ( 二年鷄 )에 있어서 각종 Hormone 및 임부요 ( 姙婦尿 )의 처리가 산란 및 육생산에 미치는 영향에 관한 연구

김선균,이기동,이돈성 ( S . K . Kim,K . D . Lee,D . S . Lee ) 한국축산학회 1979 한국축산학회지 Vol.21 No.4

This experiment was conducted to investigate the effects of treatment of various hormonal substance upon the egg laying, meat production and meat quality of two-year-old hens. 1. Effect of various hormone substances treatment on egg laying. 1) The rate of laying was significantly changed by the administration of various hormone substances ( P$lt;0.05) The laying rate of pregnant women`s urine and PM S treated group, but that of progesterone, thyroxine and Tapazol treated-group was decreased compared to the control group. 2) No significant difference in the egg weight among each treated groups was recognized. 3) S tuck on ovary 1㎝ in diameter, changed propotionally with the rate of laying and a significant difference among treated groups was recognized. 2. Effect of various gormone substances treatment on meat production and quality. 1) A significant change of body weight according to dosing with various hormone substances amonagn comparison groups, is recognised from 10 weeks after treatment, but only troxine treated group lose weight and are inferior, whereas other groups are heavier, compared with the control group, but its variation is very little. 2) A significant difference (p$lt;0.05) in carcass weight among the treated groups was recognized and the carcass weight of 5 treated-groups except thyroxin and progesterone treated-group was significantly higher than that of the control group. 3) The carcass percentage of PMS and Tapazol treated-group was significantly higher than that of the control group and there are no significant differences between the other groups and control group. 4) There was little difference of water extractives and ash content in meat component of 8 treated-groups. The crude protein of meat. was decreased a little in thyroxine and Tapazol treated-group while that of meat in estrogen, PMS and progesterone treated-group was increased a little. The crude fat contant was particularly increased in Tapazol treated-group and in the other groups it was similar to that of the control group. 3. Effect of various hormone substances treatment on the each organs. 1) A significant difference (p (0.05) in the total weigh of internal organs treated-groups was recognized. The total weight of internal organs in Tapazol and PMS treated-groups was heavier than in the control group. It is remarkably light in thyroxine treated groups. 2) There were some differences among the weight of gizzard fat and small intestine in 8 treated groups, but the changes in various organs weights were comparatively similar to those in total weight of internal organs. 3) The weight of liver, heart, pancreas and gizzard appeared generally to be in proportion to the body weight. 4) The weight of content was increased remarkably in estrogen treated-group and decreased in progesterone groups. A significant difference (p$lt;0.0.5) among the treated-groups was recognized. 5) A significant difference (p$lt;0.05) in the weight of a reproductive duct among treated-groups was recognized. The weight decreases remarkably in progesterone and Tapazol treated-groups and in the other groups it is little different from in the control group and generally tends to vary as an laying rate.

두꺼비 2종의 단백질 전기영동

박상윤,조동현,김상엽,김창한,김선균 ( S Y Park,D H Cho,S Y KIm,C H KIm,S K Kim ) 한국하천호수학회 1974 생태와 환경 Vol.7 No.3·4

Hemoglobin and protein patterns were obtained by cellulose acetate electrophoresis for two species of toad, Bufo bufo gargarizans and B. kangii. (1) Single band was appeared in hemoglobins from toads. (2) Relatively few components were found in plasma protein from B. kangii. (3) Two species of toad have unusually similar patterns of muscle protein.

산란계에 있어서 무기물의 란 및 분중에서의 흡수 , 배설에 관한 연구 - 2보 산란계에 있어서 방사성옥도 ( Ⅰ131 ) 의 란 및 분중에서의 흡수배설 -

정영채 ( Y C Chung ),이규승 ( K S Lee ),김선균 ( S K Kim ),김영묵 ( Y M Kim ),배대식 ( D S Bai ) 한국축산학회 1968 한국축산학회지 Vol.10 No.1

Twenty birds of Hyline hen aged 13 months were used in this experiment. 80 uci. of Radioactive-iodine^(131) were administered to each laying hen in the purpose of determination of the uptake and distribution as related to the process of time, of the every parts of eggs. The I^(131) uptake rate of yolk, white and shell of the eggs and the excretion rate in the feces was measured at ½, 1½, 2½, 3½, 4½, 5½, 6½, 7½, 8½, 9½, and 10½ days after the administration of I^(131). The results obtained are as follows; 1. The I^(131) uptake rate in the yolk was lowest at ½ day with 6×10^(-4)±0.09×10^(-4)% and was highest with 1816×10^(-4)±122.7×10^(-4)% at 4½ days, thereafter gradually decreased (P$lt;0.01). 2. The I^(131) uptake rate in the white was highest at ½ day with 145×10^(-4)±4.7×10^(-4)% and then decreased significantly(p$lt;0.01) as time elapses, and its decreasing rate was relatively slow during the ½ day and 3½ day, the 7½ day, and 10½ day. 3. The I^(131) uptake rate in egg-shell was highest at ½ day with 129×10^(-4)±1.1×10^(-4)±% and lowest at 10½ days with 20×10^(-4)±1.0×10^(-4)±%, showing the decreasing significance with p$lt;0.01 and decreased gradually as the process of time. 4. The I^(131) excretion rate in the feces decreased gradually(p$lt;0.01), and the decreasing rate was fast until 3½ days and slow after then. 5. The I^(131) uptake rate in the every parts of eggs and excretion rate in the feces showed the high significance(p$lt;0.01) as compared with the each observation time anti were rot significant among the white. shell and feces except egg-yolk.

성선자극 Hormone 의 투여가 미성숙계의 성선 발육 촉진에 미치는 영향 ( 제Ⅰ보 )

전창기 ( C K Jeon ),김선균 ( S K Kim ),김영묵 ( Y M Kim ) 한국축산학회 1968 한국축산학회지 Vol.10 No.1

Experimens were conduced to study the effects of Puberogen V. oil (Chorionic Gonadotrophin) on the growth of gonad and follicle in immature hens. The 105 days old hens were injected with Puberogen V. oil in dose of 10, 20, 30, 40 and 50IU. and the changes of their ovaries, oviducts and follicles were observed. The results indicate that: 1) Ovary weight was increased with the increase of the injected does and was the heaviest at 1023.8±7.71㎎. in 50IU. treatment group in comparison with control group (553.6±7.31g.) correlation between ovary weight and the injected does was highly positive, showing the significance with p$lt;0.01. 2) Oviduct weight was increased with the increase of the injected does and was 15.8±3.05 ㎎ in 50IU. treatment group in comparison with control group of 161.2±9.44㎎, showing positive correlation and the significance with P$lt;0.01. Oviduct length also went on increasing with the injected does and was 15.8±0.27㎝ in 50IU, treatment group as compared with control group of 10.24±0.23㎝, showing positive correlation and the significance with P$lt;0.01. 3) Follicle was not specialized in control group, remaining as the original cell. In treatment groups, follicle was specialized slightly in 10IU. treatment group with 1.8±0.20 pieces in comparison with control group showing no significance, and in the groups with more than 20Iv. it was increased gradually to 14.0±1.41 pieces in 50Iv. treatment group showing positive correlation and the significance with P$lt;0.01 among the averages. Diameter of follicle went on increasing as the injected does and was the largest at 4.0±0.1 ㎜. in 50IU. treatment group showing positive correlation and significance with P$lt;0.01 among the averages.

웅추에 있어서 갑상선처리가 육생산에 미치는 영향

정영채 ( Y C Chung ),이규승 ( K S Lee ),김선균 ( S K Kim ),김영묵 ( Y M Kim ),조충호 ( C H Cho ) 한국축산학회 1968 한국축산학회지 Vol.10 No.1

I^(131) administered one time into the thigh in dose of 5.0 mci. per Kg of body weight, and iodocasein of 0.25 percent of the basal ration and tapazol mixed with the basal ration in dose of 3.0 ㎎. Per ㎏ of body weight during all the experimental period, were tested to measure their influence on growth, daily gain, carcass yield, carcass percentage and organ weight of three weeks old 80 male white leghorn cockerels divided into 4 groups containing the control group. Carcass yield, carcass percentage and organ weight were observed 205 days after the beginning of administration. The results obtained are as follows; 1. Body Weight at the end of experimental period in tapazol group was the most 1641.5±41.5g (control: 1567±43.5g) showing the significance with p$lt;0.01, and iodocasein group with 1443.0±41.8g and I^(131) group with 1167.0±39.0g apparently lighter than control groin (p$lt;0.01). While I^(131) group showed the most rapid grown week after administration, and rapid growth in iodocasein group and slow in tapazol with no significance were observed until 4 weeks after the administration. 2. Daily gain and carcass yield showed a tendency to similar changes. Tapazol group was higher than the control, and iodocasein group and I^(131) group were lower than control showing no significance between the control and tapazol group, the control and iodocasein group. 3. Carcass percentage showed the significance with p$lt;0.01 among the groups and were increased at the rank of I^(131), tapazol, control and iodocasein group, showing no significance between neighbouring groups. 4. The viscera fat showed notable difference (p$lt;0.01) among the groups: 30.29±4.27 g in I^(131) group, 10.77±1.34 g, in tapazol group, 4.21±0.24 g in control group and little in iodocasein group. 5. Head weight was the most in tapazol group and the lightest in I^(131) group. There was no significance among the groups except I^(-131) group. 6. Weights of gizzard, heart, and spleen mere the most in the tapazol group and the lightest in I^(131) group, generally being in proportion to body weight. 7. Liver weight showed significance with p$lt;0.01 among the groups, and were heavy as the arnk of tapazol group, I^(131) group, iodocasein group and control group, showing no significance between neighbouring groups. 8. Comb and wattle showed a similar tendency and were decreased obviously in I^(131) group (p$lt;0.01). There was no significance among other groups except I^(131) group. 9. Cloacal thymus was atrophied and degenerated in I^(131) group, and its weight was in the rank of iodocasein group, tapazol group and control group, showing the significance with p$lt;0.01.

가토의 임신기간에 따른 혈청성분의 변화에 관한 연구

정영채 ( Y C Chung ),이규승 ( K S Lee ),김선균 ( S K Kim ),김영묵 ( Y M Kim ) 한국축산학회 1970 한국축산학회지 Vol.12 No.2

Fifty female Japanese white rabbits, weighed aproximately 2 ㎏, were used in this experiment. They were devided into 5 experimental and 5 control groups. Experimental groups consisted those of 1, 2, 3, 4, weeks of the gestation and a week after the paturition. The authors investigated changes of the amount of sodium, potassium, chloride, calcium, total protein, non-protein nitrogen, albumin, globulin α₁, globulin α₂, globulin β, globulin γ, total lipid, cholesterol, glucose, sugar, creatinine, and uric acid in serum according to the gestation period. The results obtained were as follows; 1. The amount of sodium and chloride showed no significance among the groups due to the progress of gestation. Potassium was increased significantly (P$lt;0.05) at 2 weeks of gestation. Calcium increased significantly (P$lt;0.05) at 2 and 3 weeks of the gestation at 5% level and at 4 weeks of the gestation and a week after the parturition at 1% level. 2. The total protein increased significantly with P$lt;0.05 at 4 week after the pregnancy and with P$lt;0.01 at a week after the parturition. Non-protein nitrogen was decreased significantly (P$lt;0.01) in progress of the pregnancy and showed a tendency to normalize after the parturition. Globulin β showed the increasing significance with P$lt;0.05 at 2 and 3 weeks after the pregnancy and with P$lt;0.01 at 4 weeks of the gestation and a week after the parturition. But there were no differences among the each observation time in the amount of albumin, globulin α₁, globulin α₂, and globulin γ. 3. Blood sugar was increased significantly (P$lt;0.01) at 3 and 4 weeks after the pregnancy. Glucose was increased until 2 weeks after the pregnancy and thereafter decreased gradually, with the significance level of P$lt;0.01 during all the gestation period and with P$lt;0.05 level at a week after the parturition. 4. The total lipid was increased significantly (P$lt;0.01) and cholesterole also increased significantly (P$lt;0.05) at 1 and 2 weeks after the pregnancy. 5. The creatinine and uric acid showed no significance differences among the groups due to the progress of pregnancy.

국내 사육되고 있는 은여우의 번식실태조사

서경덕(K . D . Seo),권관(K . Kwon),한기영(K . Y . Han),김선균(S . K . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.5

The silver fox. a seasonal breeder of great economic importance, has a low reproductive efficiency in Korea. This study was carried out to obtain the basic data about the reproductive physiology of the silver fox being raised in Korea. A total of 135 litter in 1987, of which 83 were raised at Taekwanryung (N: 38.5°, E:128.8°),52 were at Yangsan (N:35.5°, E:129.0°), were used for this study. The vixens breeding started on January 27 and continued until March 25. The mode and mean was March 5 with an standard deviation of 18 days for vixens raised at Taekwanryung, while the breeding of vixens raised at Yangsan began February 16 with a standard deviation of 11 days. The mean date for mating of yearling was about a fortnight later them that of vixens of two and more than two of age which were all raised in two areas. The linear model was used to measure the effect of raising region, parity and the date of mating on litter size. The mean litters were 4.78±0.14 kits. The difference in litter size among 2 raising area, 2 parities and 4 dates of mating was not significant. However, the vixens raised in southern area, having the first parity and mating between March 1 and March 15 had more kits per litter than in the northern area, the 2nd parity and the other dates of mating.