• 한국임상수의학회지
• /
• 제37권6호
• /
• pp.305-310
• /
• 2020

To confirm the accuracy of the prediction of parturition day, the actual parturition days were compared with each day of the prediction of parturition day (n = 80). The accuracy of the prediction of parturition day was 80.0% (64/80) with a precision of ± 2 days from the first day of estrus after the first vaginal discharge, 97.5% (78/80) from the day when plasma progesterone concentrations increase above 4.0 ng/ml, and 72.5% (58/80) from the first day of diestrus, respectively. The accuracy of the prediction of parturition day by plasma progesterone concentration was higher than that by the first day of estrus and diestrus after the first vaginal discharge. These results indicated that the determination of plasma progesterone concentrations at estrus were a useful method for estimating of parturition day and for the reproductive management in pregnant bitches.

• 한국환경농학회지
• /
• 제30권2호
• /
• pp.144-152
• /
• 2011

본 연구는 주암호 홍수조절용지내에 서식하는 침수식물체들의 영양염류 용출이 주암호 수질에 미치는 영향을 조사하고자 침수상태의 수질, 토양 및 식물체를 자연상태 그대로 column으로 옮겨와 침수기간별 영양염류의 제거속도 및 용출속도를 조사하였고, 이들 결과를 토대로 각 홍수조절용지에서 침수식물체별 영양염류 용출량을 산출하였다. COD 제거속도 상수(K, $day^{-1}$)는 이삭사초의 경우 침수 0~4 day, 5~19 day 및 20~33 day 구간에서 0.07~0.18, -0.23~-0.17 및 -0.28~0.03 $day^{-1}$이었고, 물억새의 경우 침수 0~6 day, 7~19 day 및 20~33 day 구간에서 0.14~0.22, -0.19~-0.04 및 -0.05 $day^{-1}$이었다. T-N 제거속도 상수(K, $day^{-1}$)는 이삭사초의 경우 침수 0~4(8) day 및 5(9)~33 day 구간에서 0.02 및 -0.13~-0.10 $day^{-1}$이었고, 물억새의 경우 침수 0~2(4) day, 3(5)~19 day 및 20~33 day 구간에서 0.01~0.04, -0.03 및 -0.18~-0.17 $day^{-1}$이었다. T-P 제거속도 상수(K, $day^{-1}$)는 이삭사초의 경우 침수 0~4 day 및 5~33 day 구간에서 0.05~0.06 및 -0.14~-0.09 $day^{-1}$이었고, 물억새의 경우 침수 0~4 day 및 5~33 day 구간에서 0.05~0.06 및 -0.15~-0.12 $day^{-1}$이었다. 이상의 결과에서 침수초기에는 침수식물체가 생육하면서 영양염류를 분해 이용하여 수질을 정화하였으나, 침수식물체에 따라 다소 차이가 있었지만 침수 4~10일후부터 침수식물체가 미생물에 의해 서서히 분해되면서 영양염류가 수질내로 용출되는 경향이었다. 홍수조절용지에서 침수식물체별 영양염류용출량은 이삭사초가 물억새에 비해 약간 많았다. 특히 site 1에서 COD, T-N 및 T-P 용출량은 이삭사초의 경우 각각 6,719, 2,397 및 466 kg/month/area이었고, 물억새의 경우 각각 53.1, 14.8 및 3.30 kg/month/area이었다.

• 한국가축번식학회지
• /
• 제19권2호
• /
• pp.141-145
• /
• 1995

The effect of splenectomy on the concentration of progesterone in pregnant wistar rats showing 4-day regular estrous cycles more than two cycles were investigated. The day after mating with the same male animal was designated day 0 of pregnancy. Splenectomy was conducted on day 0 (early-S), 6 (middle-S) and 13 (late-S) of pregnant rat, respectively. Blood sample were collected at day 1, 7, 14 and 21 of pregnancy. Concentraton of serum progesterone was determined by emzyme-linked immunosorbent assay (ELISA) using specific antibodies and emzyme conjugate(progesterone peroxidase labeled). In normal pregnant rats, serum progesterone concentrations were increased significantly (P<0.05) on day 7 and 14 of pregnancy compared with on day 1 of pregnancy and then dramatically decreased on day 21. However in early and middle splenectomized rats, progesterone concentrations were significantly (P<0.05) decreased on day 7 and 14 of pregnancy compared with same day of normal rats. These observations indicate that luteotropic action and steroidogenesis by corpus luteum of ovary may be regulated by splenocytes in rat.

• 한국임상수의학회지
• /
• 제36권1호
• /
• pp.38-41
• /
• 2019

The aim of this study was to estimate of prediction of whelping day and to confirm the accuracy of prediction of whelping day in small pet bitches. The gestation length from the each based on days was $66.64{\pm}2.32days$ ($Mean{\pm}S.D$) when the Cornification index (CI) was over 90% after the first vaginal discharge, $64.65{\pm}2.87days$ from the day of CI peak, $63.46{\pm}1.63days$ from the day of ovulation by progesterone concentrations, and $57.67{\pm}2.43days$ from the first day of cytologic diestrus, respectively. The whelping day was estimated 66 days when the CI was over 90% after the first vaginal discharge, 64 days from the day of CI peak, 63 days from the day of ovulation by progesterone concentrations, and 57 days from the first day of cytologic diestrus, respectively. The accuracy of the prediction of whelping day was 90.0% with a precision of ${\pm}2days$ when the CI was over 90% after the first vaginal discharge, 77.5% from the day of CI peak, 86.2% from the day of ovulation by progesterone concentrations, and 81.2% from the first day of cytologic diestrus, respectively. These results indicated that the prediction of parturition day by vaginal cytology was useful method for management of reproduction and parturition in small pet bitches.

• 한국작물학회지
• /
• 제46권3호
• /
• pp.184-188
• /
• 2001

벼 어린모 육묘시 적기이앙을 못하여 육묘일수가 연장 될 경우 모소질과 본답초기 생육 및 수량에 미치는 영향을 검토하고자 화성벼를 공시하여 1997년 작물시험장 포장에서 8일모, 12일모, 16일모, 20일모를 이용하여 시험을 수행한 결과는 다음과 같다. 1. 성묘을은 8일모가 93.9%로 가장 높았으며, 12일모는 88.9%, 16일모는 82.0%, 20일모는 80.8%로 육묘일수가 길어질수록 성율이 낮아졌다. 2. 이앙당시 초장이 8일모가 7,6cm, 12일모가 13.0cm, 16일모가 15.1cm, 20일모가 16.9cm로 육묘 12일 이후는 육묘일수 지연에 따른 생육 차이가 적었다. 3. 종자내 배유양분 잔존율은 8일모가 52.5%로 가장 많았으며 12일모가 36.2%, 16일모 30.1%, 20일모가 27.4%였다. 4. 결주율은 8일모와 12일모는 5.1-5.2%로 비슷하였으나 16일모와 20일모는 6.7%, 7.8%로 결주 발생이 많았다. 5. 발근량은 8일모가 104.0로 가장 높았으며, 다음은 12일모로 59.5, 16일모는 41.4, 20일초는 27.9였다 6. ha당 쌀수량은 육묘일수가 길어질수록 수량감소가 현저하여, 8일모 대비(6.18톤) 12일모는 5%, 16일모는 11%, 20일 모는 16%가 감소하였다. 7. 현미의 완전미 비율은 8일모와 12일모는 92.1, 91.5%로 비슷하였으며, 16일모와 20일모는 88.8, 85.4%로 현저히 감소되었다.

• 한국양식학회지
• /
• 제17권4호
• /
• pp.262-267
• /
• 2004

Physiological responses (oxygen consumption, ammonia excretion, hemoglobin, red blood cell and white blood cell) of cultured eel, Anguilla japonica to vibration stress were studied in an indoor experimental system. Vibration of 76-93 dB (V) from an electric vibrator was provided in 15-minute intervals during daytime (0800-1800) over a ten day period. Oxygen consumption before the beginning of the experiment (0 day) was 83.9 mg $O_2$$.$kg$^{-1}$ ㆍhr$^{-1}$ . After 1, 5 and 10 days of stress respiration rate decreased by 37.5, 53.7 and 70.5%, respectively. Ammonia excretion showed a similar pattern to that of oxygen consumption. Ammonia excretion decreased by 80.1 % following 10 days of vibration stress. Blood hemoglobin concentration also decreased at 1, 3 and 10th day were 29.4% on day 1,83.9% on day 3 and 87.9% by day 10, while red blood cell counts at day 1 and day 10th were 59.8% and 84.7% lower than initial counts, respectively. The white blood cell count increased by 191.2% at day 7, dropping to 41.5% at day 10. Physiological activity was reduced by 50% following 3.4 days of vibration stress.

• International Journal of Human Ecology
• /
• 제3권1호
• /
• pp.127-136
• /
• 2002

According to the Labor Standard Law in Japan which was enacted after World War II in 1947, all work hours for adult men, women, and youth were set at a maximum of eight hours per day and forty-eight hours per week. In other words, a six-day work week, with only one-day off, was set. Now we are in the full five-day and two-day off school system. The five-day school week influences on our home life. Students are highly enthused by the new system, in looking forward to their personal time they now have to play with friends, to relax, or just watch TV. To implement this new five-day school system positively and effectively, we should see the point at issue related to the two-day off system from a different angle, which suggests that we should see far ahead into the future.

• 한국축산시설환경학회지
• /
• 제6권3호
• /
• pp.185-190
• /
• 2000

돈분뇨에 함유된 질소.인의 부하저감과 액비살포면적 감소에 대하여 급속액상부숙기술 반응기(TAO system)과 28mesh, 200mesh의 막을 가진 고액분리기를 적용하여 연구한 결과는 다음과 같다. 1. 농가에서 발생하는 분뇨 $4.6m^3/day$에 함유된 질소와 인의 양은 22.5kg.N/day($4,893mg/{\ell}$), 7.32kg.P/day($1,592mg/{\ell}$)이었따. 2. 감량화 단계에서는 질소와 인이 각각 12.6kg.N/day($4,862mg/{\ell}$), 3.85kg.P/day$(1,397mg/{\ell}$)로 46.0%, 34.0% 감소하였다. 3. 고액분리단계에서는 질소와 인이 각각 12.0kg. N/day($5,000mg/{\ell}$), 2.2kg.P/day($929mg/{\ell}$)로 일일 발생량이 46.6%, 69.8% 감소하였다. 4. 질소시비량을 기준으로 처리 전.후의 액비 살포면적은 논의 경우, 74.7ha/y에서 39.0ha/y, 밭의 경우, 63.2ha/y에서 33.0ha/y로 감소하였다.

• Journal of Nutrition and Health
• /
• 제36권7호
• /
• pp.736-742
• /
• 2003

Soybeans have been a major protein source for many centuries in Korea. Soybeans contain phytochemicals which are isoflavones, biochemically active component. Isoflavone is a kind of phytoestrogen, structurally and functionally similar to estrogen. It has been reported that the breast milk and blood of breast feeding mothers who consume soy products contain isoflavones. This study was conducted to investigate the effects of soy milk supplement on the isoflavones (daidzein, genistein) concentration of breast milk, plasma and urine from breast feeding woman. Seventeen healthy women who delivered at Kyung Hee Medical Center were recruited. For the first 2 weeks after delivery, seventeen women ingested 400 ml (isoflavone 43.2 mg) of soy milk on the given time starting from the day of giving birth. For the next 2 weeks, soy milk ingestion was withdrawn. Dietary intake and anthropometric data were checked and breast milk, blood, and 24 hr urine samples were collected on the day of giving birth, the 14th (the last day of the supplement phase) and 28th (the last day of the withdrawal phase) day, respectively. HPLC analysis was used to measure the concentration of isoflavones. Dietary intakes of the subjects were inadequate for the Korean RDA regardless of soy milk supplementation. Especially, intakes of vit A, calcium, and iron were very low. The Anthropometric data such as LBM, TBW, PIBW, BMI checked on the day of 14th decreased and maintained their levels by the 28th day. Daidzein concentration in breast milk was not affected by soy milk supplementation. However, genistein concentration decreased by the 28th day (14th day: 0.89 $\pm$ 0.10 $\mu$g/ml, 28th day : 0.48 $\pm$ 0.07 $\mu$g/ml) (p < 0.05). Plasma daidzein and genistein concentrations were not changed by the 14th day and decreased by the 28th day (14th day: 49.64 $\pm$ 3.30 ng/ml, 26.72 $\pm$ 2.90 ng/ml, 28th day: 38.30 $\pm$ 4.40 ng/ml, 6.51 $\pm$ 0.50 ng/ml, respectively) (p < 0.05). Twenty four hour urine concentrations of daidzein and genistein significantly increased by the 14th day and decreased by the 28th day (14th day: 5.80 :t 0.3 mg/d, 4.17 $\pm$ 0.2 mg/d, 28th day: 6.72 $\pm$ 0.4 mg/d, 5.09 $\pm$ 0.5 mg/d, respectively) (p < 0.001). The rate of urinary recovery of daidzein was greater than that of genistein. The results of this study indicate that the supplement of dietary soy milk to the lactating women elevates the contents of isoflavone in the breast milk.

• 한국식품영양과학회지
• /
• 제19권5호
• /
• pp.418-428
• /
• 1990

This study measured each daily intake and excretion of iron copper and cobalt of eight 20-26 years old college men during four weeks by means of analyzing their food intake urine and feces keeping their normal living pattern and maintenance body weight. This study also compared the actual measurement value of iron intake by atomic absorption spectrophoto-meter with the conversion value of it by food table. The results were as follows. Each person's average intake daily was iron 9.19±0.32mg/day, copper 0.56±0.06mg/day and cobalt 1.86±0.18mg/day. Each person's average urinary excretion daily was iron 0.53±0.07mg/day, copper 0.07±0.03mg/day and cobalt 0.13±0.01mg/day. Each person's average fecal excretion daily was iron 1.73±0.14mg/day copper 0.16±0.01mg/day and cobalt 0.46±0.08mg/day. The actual measurement value was 9.19±0.32mg/day and its conversion value 14.07±0.29mg/day : the former was 35% lower than the latter.