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윤종만 ( Chong Man Yoon ),박승조 ( Sung Jo Park ),조국현 ( Kook Hyun Cho ) 대한내과학회 1970 대한내과학회지 Vol.13 No.8
Clinical analysis on thirty-one cases of cholera (El Tor type) which prevailed in Chonnam province during the epidemic period of 1969 is presented. 1) Most of the patients were the people of lower classes, poor hygiene and undernourishment. And all of them
윤종만,박홍양 한국동물번식학회 1989 Reproductive & developmental biology Vol.13 No.1
Guppy fry were treated for the first 40 days of life with 0, 20, 40, 60 & 100$\mu\textrm{g}$ of estradiol per gram of food in order to change the sex of normal males to functional females(genetic male). The present investigation deals with the effects of steroid hormones, such as $\beta$-estradiol and testosterone, on the sex differentiation in guppy and tilapia. The results obtained were summarized as follows. 1. In B (20$\mu\textrm{g}$/g diet) group 17$\beta$-estradiol-treated, 67.8% of male offsprings were produced. 2. In D (60$\mu\textrm{g}$/g diet) group 17$\beta$-treated, 67% of female offsprings were produced. 3. B, D groups of genetic male brooders had significantly different effects (P<0.01) upon sex ratios of their progeny. 4. This strongly indicates that sex direction has been achieved and that the male is the heterogametic sex. 5. The group that produced the highest percentage of male offspring(male percentage of observed number to expected number was 91%) contained only full-sibling male brooders to the sex-reversed female brooders. 6. After 7 months following treatment, the sex-reversed males had ovarian portion in the anterior region and a testicular portion in the posterior region of the same intersexual gonad, respectively. 7. At 7 months after treatment, the ovareis revealed a complete arrest of the ovarian formation, and appearances of spermatogenetic cell cysts among surviving auxocytes. 8. In most of sex-reversed fish, anterior portion of test is was devoid of sperm ducts including the seminal vesicle and vas deferens. 9. The male transferrin showed two strong bands, while the female transferrin showed a single weak band. 10. One of the two bands of male transferrin showed the same mobility with band of female transferrin.
틸라피아의 해수수치에 관한 생리학적 연구 III. 호르몬과 혈청성분간의 상관관계
윤종만,박홍양 한국동물번식학회 1993 Reproductive & developmental biology Vol.16 No.4
This study was taken to examine correlationships between ehdocrine changes such as estradiol-17$\beta$, progesterone, T4 and T3 and serum components concentrations of female Oreochromis niloticus living in 0$\textperthousand$, 10$\textperthousand$, 20$\textperthousand$, and 30$\textperthousand$ salt concentrations, respectively. The results obtained in these experiments were summarized as follows. Correlation coefficients of serum albumin and thyroxine were +0.907 and +0.611 in 10$\textperthousand$ and 20$\textperthousand$, respectively. In 30$\textperthousand$ salinity, serum BUN and other 3 kinds of hormones showed all negative correlation coefficients. Correlation coefficients of serum estradiol-17$\beta$ with calcium and cholesterol in 20$\beta$ were +0.624, +0.733, respectively. Correlation coefficient between serum triglycerides and thyroxine in 30$\beta$ was +0.989.