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산란계 개량에 관한 연구 1 . 순계의 생산능력 비교시험
상병찬,강만석,김동곤,한성욱 ( B . C . Sang,M . S . Kang,D . K . Kim,S . W . Han ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5
This experiment was carried out to test performance of the domentic purebred fowl. The purpose of this experiment was to compare the productive performance of the purebred fowl to obtained basic materials for laying performance improvement by means of cross breeding. In this study, 1, 200 chickens was used-that is 6 purebred strains White Leghorns(720 chickens), 1 purebred strain Rhode Island Reds (120 chickens), 1 purebred strain New Hampshires (120 chickens). The results obtained in this study are as follows; 1. The average Viability of brooding, rearing and laying period was best for Rhode Island Reds and E. Strain among White Leghorns. 2. The average body weight at 8 weeks, first egg production days, 500days of age in W. L. was 546.86g. 1431.37g, 1738.34g, respectively, but there was no significant difference among. purebred strains of W. L. 3. The average Sexual maturity of 50% egg production was 170.58 days in W. L., but R. I. R. and S. N. H. were 189.94 days, 182.42days, respectively. There was significant difference at 1 % level among Strains. 4. The average hen-housed egg production was 214.16 eggs in W. L., but R. I. R. and S. N. H. were 214.22 eggs, 196.74 eggs, respectively. There was significant difference at 1% level among Strains, but the highest hen-housed egg production (231.84 eggs) was E. Strain among strains. 5. The average egg weight was 54. 48g in W. L, but R. I. R. and .S. N. H. were 56.12g, 54.90g, respectively, The highest egg weight (57.69g) was Coronial Strain of W. L. among strains. There was significant difference at 1 % Level among strains. 6. The average feed requirement was 3.01 in W. L. but R. I. R. and S. N. H. were 3.23, 3.52, respectively the highest feed requirement (2.79) was Coronial Strain of W. L. among strains. There was significant difference at 1 % level among strains. 7. On the basis of the results of this study, the productive performance was best for C. D. E. strains among W. L. and R. I. R.
( Kenton M Sanders ),( Anna K Salte ),( Grant W Hennig ),( Sang Don Koh ),( Brian A Perrino ),( Sean M Ward ),( Salah A Baker ) 대한소화기기능성질환·운동학회 2014 Journal of Neurogastroenterology and Motility (JNM Vol.20 No.2
Background/Aims Interstitial cells of Cajal (ICC) play important functions in motor activity of the gastrointestinal tract. The role of ICC as pacemakers is well established, however their participation in neurotransmission is controversial. Studies using mutant animals that lack ICC have yielded variable conclusions on their importance in enteric motor responses. The purpose of this study was to: (1) clarify the role of intramuscular ICC (ICC-IM) in gastric motor-neurotransmission and (2) evaluate remodeling of enteric motor responses in W/WV mice. Methods Kit immunohistochemistry and post-junctional contractile responses were performed on fundus muscles from wild type and W/WV mice and quantitative polymerase chain reaction (qPCR) was used to evaluate differences in muscarinic and neurokinin receptor expression. Results Although ICC-IM were greatly reduced in comparison with wild-type mice, we found that ICC-IM persisted in the fundus of many W/WV animals. ICC-IM were not observed in W/WV group 1 (46%) but were observed in W/WV group 2 (40%). Evoked neural responses consisted of excitatory and inhibitory components. The inhibitory component (nitrergic) was absent in W/WV group 1 and reduced in W/WV group 2. Enhanced excitatory responses (cholinergic) were observed in both W/WV groups and qPCR revealed that muscarinic-M3 receptor expression was significantly augmented in the W/WV fundus compared to wild type controls. Conclusions This study demonstrates that ICC-IM mediate nitrergic inhibitory neurotransmission in the fundus and provides evidence of plasticity changes in neuronal responses that may explain discrepancies in previous functional studies which utilized mutant animals to examine the role of ICC-IM in gastric enteric motor responses. (J Neurogastroenterol Motil 2014;20:171-184)
상병찬,한성욱,오봉국,정선부 ( B . C . Sang,S . W . Han,B . K . Ohh,S . B . Chung ) 한국축산학회 1983 한국축산학회지 Vol.25 No.5
This study was conducted to improve the interior egg quality with a total of 6,093 eggs, laid at 351 Single Comb White Leghorns and 326 Rhode Island Reds, produced at National Livestock Breeding Station from March 1, 1979 through July 30, 1980. The results obtained are summarized as follows; 1. The average albumen height of the eggs at first eggs, 300 and 500 days of age was 8.32, 7.51 and 6.74㎜ in the S.C.W. Leghorn and 8.04, 6.94 and 6.05㎜ in the R.L.Red, and the Haugh units at first egg, 300 and S00 days of age was 90.92, 79.74 and 76.25 in the S.C.W. Leghorn, and 88.54, 80.02 and 74.56 in the R.I. Red, also the egg shell thickness at first egg, 300 and 500 days of age was 0.383, (1.364 and 0.334㎜ in the S.C.W. Leghorn and 0.354, 0.332 and 0.327 in the R.I. Red. 2. The heritability estimates in the S.C.W. Leghorn and R.I. Red were 0.398∼0.847 and 0.306∼0.634 for albumen height, 0.162∼0.594 and 0.125∼0.485 for Haugh units, 0.185-0.339 and 0.176∼0.402 for egg shell thickness, respectively. 3. The genetic correlation coefficients between the interior egg qualities were as follows. In the S.C.W. Leghorn and R.I. Red, the coefficients between albumen height and Haugh units, 0.432∼0.845 arid 0.397∼0.974; between albumen height and egg shell thickness, 0.046∼0.226 and 0.068∼0.197; between Haugh units and egg shell thickness, 0.089∼0.364 and 0.165∼0.327 ; respectively.
원발성 동맥염 15 예 ( 4 부검예포함 ) 에 관한 고찰
안우풍 ( W. P. Ahn ),성낙훈 ( N. H. Sung ),김영호 ( Y. H. Kim ),김열자 ( Y. J. Kim ),유수웅 ( S. W. Yoo ),박승광 ( S. K. Park ),홍진숙 ( J. S. Hong ),강석린 ( Suk Rin Kang ),지정희 ( Chung Hee Chi ) 대한내과학회 1971 대한내과학회지 Vol.14 No.3
During the period from Jan. 19o9 to Sept. 1967, 15 cases with primary arteritis or pulseless disease were observed in the Department of Medicine of National Medical Center. The diagnosis was made on, the basis of autopsy findings in 2 cases, of aortographi