• Title/Summary/Keyword: Conception rate

Search Result 240, Processing Time 0.023 seconds

The Effect of Ionization on Mice Growth and Breeding Performance (이온 정전(靜電)이 생쥐의 성장(成長)과 번식능력(繁殖能力)에 미치는 영향(影響))

  • Lee, Mu-Hwan
    • Journal of Nutrition and Health
    • /
    • v.17 no.4
    • /
    • pp.245-252
    • /
    • 1984
  • The aim of the present experiment was to investigate the effects of anionization on the various stage of mice growth, the feeding level of diets, the switch - over effects, effects of plane of nutrition on growth of mice, the effects of method of ionization on growth of mice and associated breeding performance. Mice in polyethylene cages were placed on vinyl plate charged anion by an Electrical Ionizing Machine. At an early growing stages body weight gains of mice anionized were not different from the unionized group. The dietary intake did not affect significantly the body weight of mice 15- l7g. The growth of mice of 11.5-16.2g was not affected by ionization statistically, but the ionized group increased slightly. The switching over from the untreated to the ionization slightly depressed the ionized mice by 2.4g, the untreated switched over to ionization group by 2.28g as compared with the 3.29g for the untreated during the 4- day - feeding period. Plane of nutrition and ionization did not significantly affect the growth of mice of 7.1-15.8g when mice were fed high - protein and high - carbohydrate diets. The Common Ionization Method was appeared statistically superior to the Overnight - Ionization Method. The growth rate of the offspring of mice ionized prior to conception was found to be normal but the number of progeny was considerablly high.

  • PDF

A Study on The New Level of Service for Rural Two-Lane Highways (지방부 2차로도로의 새로운 서비스수준 산정에 관한 연구)

  • Park, Je-Jin;Ha, Tae-Jun
    • Journal of Korean Society of Transportation
    • /
    • v.26 no.2
    • /
    • pp.47-56
    • /
    • 2008
  • Two-Lane Highway of Korea is important, Because it has the largeest portion of all roads of Korea. But it has only one lane for one direction. So, If Delays are happened by low-speed vehicles, high-speed vehicles should over-take through the other side of the road. This over-takings can generate the high possibility of traffic accidents and the severity of traffic accidents by over-takings is very high. Because it generates a head-on collision. But the level of Service that indicates the operation states of Two-Lane Highway is defined as a conception that explains the operation conditions of traffic safety etc. Whencalculating the Level of service. It is considered by only delays. So, in this paper, first, this author wants to present the calculation of delay-time by Total-Delay Rate. Second, by multiplying this delay-time by the costs of delays wants to present the method of calulates the total delay costs. Third, to consider the traffic accidents, After predicting the number of traffic accidents, As multipling this by the average of costs of traffic accidents. want to present the method to calculate Total traffic accidents costs. Forth, present the operation costs.

Rearing Black Bengal Goat under Semi-Intensive Management 1. Physiological and Reproductive Performances

  • Chowdhury, S.A.;Bhuiyan, M.S.A.;Faruk, S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.15 no.4
    • /
    • pp.477-484
    • /
    • 2002
  • Ninety pre-puberal (6-7 months) female and 15 pre-puberal male Black Bengal goats were collected on the basis of their phenotypic characteristics from different parts of Bangladesh. Goats were reared under semi-intensive management, in permanent house. The animals were vaccinated against Peste Des Petits Ruminants (PPR), drenched with anthelmentics and deeped in 0.5% Melathion solution. They were allowed to graze 6-7 h along with supplemental concentrate and green forages. Concentrates were supplied either 200-300 g/d (low level feeding) or quantity that supply NRC (1981) recommended nutrient (high level of feeding). Different physiological, productive and reproductive characteristics of the breed were recorded. At noon (temperature=$95^{\circ}F$ and light intensity=60480 LUX) rectal temperature and respiration rate of adult male and female increased from 100.8 to $104.8^{\circ}F$ and 35 to 115 breath/min, indicated a heat stress situation. Young female attain puberty at an average age and weight of 7.2$\pm$0.18 months and 8.89$\pm$0.33 kg respectively. Mean age and weight at 1st kidding were 13.5$\pm$0.49 months and 15.3$\pm$0.44 kg respectively. It required 1.24-1.68 services per conception with an average gestation length of 146 days. At low level of feeding the postpartum estrus interval was 37$\pm$2.6 days, which reduced (p<0.05) with high feeding level to 21$\pm$6.9 days. Kidding interval also reduced (p<0.05) from 192 d at low feeding level to 177 d at high feeding level. On an average there were two kiddings/doe/year. Average litter sizes in the 1st, 2nd, 3rd and 4th parity were 1.29, 1.71, 1.87 and 2.17 respectively. Birth weights of male and female kids were 1.24 and 1.20 kg respectively, which increased (p<0.05) with better feeding. Although kid mortality was affected (p<0.05) by dam's weight at kidding, birth weight of kid, milk yield of dam, parity of kidding, season of birth, but pre-netal dam's nutrition found to be the most important factor. Kid mortality reduced from 35% at low level of feeding to 6.5% at high level of feeding of dam during gestation. Apparently, this was due to high (p<0.05) average daily milk yield (334 vs. 556 g/d) and heavier and stronger kid at birth at high feeding level.

Effect of Level of Feeding on the Performance of Crossbred Cows during Pre- and Post-partum Periods

  • Singh, Jatinder;Singh, Balwant;Wadhwa, M.;Bakshi, M.P.S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.16 no.12
    • /
    • pp.1749-1754
    • /
    • 2003
  • The study was undertaken to see the effect of elevated feeding during pre-partum or pre- as well as post-partum period on the productive and reproductive performance of crossbred cows. The experiment lasted for 60 d pre-partum to 120 d post-partum. Eighteen dry pregnant crossbred cows divided into three equal groups were fed either as per NRC feeding standard (C) or 20% above NRC during 60 d pre-partum ($T_1$) or fed 20% above NRC during both 60 d pre-partum to 120 d post-partum ($T_2$) period. During prepartum period body weight gain was significantly ($p{\leq}0.05$) higher in $T_1$ and $T_2$ groups than that of control group. The animals fed at higher plane of nutrition ($T_1$ and $T_2$) took significantly lesser time for complete relaxation of pelvic muscles, act of calving and for expulsion of placenta than that of control group. Moreover, such cows delivered 2 to 3 kg heavier calves as compared to normal fed dams. During post-partum period, the average daily milk yield was significantly higher in $T_2$ group than that in $T_1$ and control groups. The peak yield was significantly higher in $T_2$ group, it took longer time to reach peak production but it was more persistent in this group as compared to $T_1$ and control groups. Average milk fat, solids-not-fat (SNF) and total solids were significantly higher in $T_1$ and $T_2$ groups as compared to control group. Body weight losses incurred during early lactation were not even compensated by end of 4th month of lactation in C and $T_1$ groups whereas the animals in $T_2$ group gained 2.0 kg. The 1st post-partum estrus and conception rate were better in high fed groups ($T_1$ and $T_2$) than that of control group. The returns over feed cost of milk production were higher in $T_2$ group followed by $T_1$ and control groups indicating the advantage of elevated feeding during pre- and post-partum periods.

Study to Examine the Awareness of the Parents, whose Children are Attending an Elementary School in Gyeonggi-do, on Herbal Medication and Health Functional Food (수도권 지역 초등학생 학부모의 한약 및 건강기능식품의 인식 실태에 대한 연구)

  • Kim, Mi-Ki;Jung, Ji-Ho;Min, Deul-Le;Lee, Hai-Ja;Park, Eun-Jung
    • The Journal of Pediatrics of Korean Medicine
    • /
    • v.25 no.1
    • /
    • pp.111-118
    • /
    • 2011
  • Objectives: The purpose of this study is to examine the different preferences between herbal medicine and health functional food, and analyze the reasons for the preferences to figure out the better way of promoting herbal medicine. Methods: 500 questionnaires has been handed out to the parents having elementary school students in Gyeonggi-do province, and 331 questionnaires has been collected and evaluated for this study. Results: Among the 331 responses, 58.4% were female, and 41.6% were male. The percentages of the subjects who consume health supplements and that of herbal medicines were 67.4% and 59.2% respectively. The preference rate for the health supplements was 57.6%, and for herbal medicines was 42.4%. The major reason of taking the health supplements was that they were convenient to consume(54%). The major reason for choosing herbal medicines was that people 'expect them to be more effective'(72.7%). However, the problem with Herbal medicine was their consumptions were inconvenient (39.8%), and their tastes was unfavorable. The most preferable form of herbal medication was pills(50.6%), followed by syrup(22.9%). Pertinent price for herbal medication, the participants were favorable to pay 30,000 within a week. For the question on when to start taking the herbal medication, 18 months after was the popular answers from the participants. Conclusions: Among the 331 subjects, the percentage of consuming the health supplements (67.4%) was higher than that of consuming the Herbal Medicine (59.2%). Also the preference was higher than the Herbal Medicine. The reason why the participant preferred health supplements was that they were 'easy to take', The reason for subjects' great preference in herbal medicine was based on their conception that herbal medicines were highly effective. When taking herbal medicine, participants addressed inconvenience in consuming, and unfavorable taste as the biggest problems. Also they thought that pills would be most convenient form of herbal medicine to consume. For the proper price, they were willing to pay less than 30000won, lower than a market price, per a week for the herbal medicine. Most parents thought that proper age of taking herbal medicine is ' 18 month after the birth'. Taking these into account, different perspectives on herbal medicine is necessary at the very moment.

Monitoring the Reproductive Status of Dairy Cows by Urinary Pregnanediol Glucuronide

  • Yang, C.J.;Wu, L.S.;Liu, S.H.;Lin, J.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.17 no.4
    • /
    • pp.460-466
    • /
    • 2004
  • This study was undertaken with the aim to establish a reliable radioimmunoassay (RIA) system for urinary pregnanediol glucuronide (PdG) and to employ it for monitoring the reproductive status of dairy cows. Urine and blood samples were collected from the Holstein cows both pregnant and non-pregnant. The samples were then investigated for evaluating the relationship between progesterone ($P_{4}$) in blood and PdG in urine adjusted with or without urinary creatinine basis. Biweekly urine collection was employed for three cows in estrous and those artificially inseminated, while urine from pregnant cows was collected on a monthly basis. P_{4}$ and PdG levels were measured by enzymeimmunoassay (EIA) and RIA techniques, respectively. Our results indicated the sensitivity of PdG for RIA being 35 pg/tube and the recovery rate of 100%. Urinary creatinine concentrations also fluctuated within a day, but change at midday was not noteworthy. Regardless of the time of urination the change in concentrations of PdG was relatively smaller and did not vary significantly. The urinary PdG concentration showed periodic changes as that with serum P_{4}$ levels during the cow's estrus cycle. The correlation coefficient rose when creatinine level in urine was adjusted but the change was also not significant. The concentrations of PdG during the luteal phase were detected between 8.2 and 17.4 ng/ml, three to five times higher than that in the follicular phase. The concentration of PdG from pregnant cows (21 days after conception) was three to four times higher than in the nonpregnant cows. Our finding suggests that the determination of urinary PdG could be reliably employed for early pregnancy detection. The urinary PdG level continued to raise until 30 days pre-partum while the concentration reached its peak at 30 ng/ml, after which it started to fall 18 to 30 days before parturition and finally fell to its nadir value one week after parturition. As the correlation coefficient between the urinary PdG and serum P_{4}$ was higher than that corrected by urinary creatinine it can be suggested that the adjustment is not needed. The concentrations of urinary PdG could be maintained stably for 2 days in urine samples stored at room temperature and extended to 8 days when the samples were pretreated by boiling for 30 minutes. In conclusion urinary PdG concentration even without the need for creatinine basis adjustment can be used directly for monitoring the reproductive status of dairy cows.

A Study on the Variations of the Body Trunk Temperature by the Drug-Pad Moxibustion Method (약패드 뜸 방식을 이용한 체간온도변화에 대한 연구)

  • Yoon Dong-Eop;Jo Bong-Kwan
    • The Transactions of the Korean Institute of Electrical Engineers D
    • /
    • v.55 no.8
    • /
    • pp.386-396
    • /
    • 2006
  • We implemented the Drug-Pad Moxibustion Method in order to improve the conventional moxibustion therapy. This method is aimed to eliminate burning wounds and smoke, which are the defects of conventional moxibustion therapy. And we performed to verify the efficiency by comparing the Drug-Pad Moxibustion Method with the conventional Indirect Moxibustion Therapy. We measured the body heat and the lasting time of blood circulation improvement using thermography. The moxibustion therapy has two kinds of effects: The formers are pharmacological effects of the Moxa's vasodilators and antioxidants. The latters are thermal effects which cause improvement of the blood circulation. To remove the demerits without omission of above therapeutic effects, we extracted the vasodilators and antioxidant compounds from the Moxa-$CH_2Cl_2$ fraction Moxa-EtOAc and composed the moxibustion kit with $(Ba_{0.8}\;Sr_{0.2})_{0.996}\;Y_{0.004}\;TiO_2+0.5_{WT}\;SiO_2%$ Positive Temperature Coefficients Thermistor. The experimental demonstrations have been made by the stimulating the spot which is CV4(Kwan-Won), CV8(Shin-Guel), CV12(Jung-Wan) acupuncture points of the conception vessel meridian(CV). And stimulating time was one hour. We divided the subjects into 5 groups such as no stimulation group, conventional Indirect Moxibustion group, only Drug-Pad stimulation group, only heat stimulation group, and Drug-Pad Moxibustion group. In the different cases, we have measured the body heat in pre-stimulation, just after stimulation, 2 hours after, and 4 hours after. The body heats of the group who were stimulated by the Drug-Pad Moxibustion Method were increased by over the $2^{\circ}C$. And the body heats of the group who were stimulated by the Indirect Moxibustion Method were increased by average the $1^{\circ}C$. We have evaluated that the Drug-Pad Moxibustion Method is improvement on the conventional Indirect Moxibustion Method by the heat-increasing rate is 200% and the lasting time is 150% with the body heat of the abdominal region. In the conclusions, We have implemented the Drug-Pad Moxibustion Method and evaluated the efficiency of the Drug-Pad Moxibustion Method comparing with the conventional Indirect Moxibustion Method.

A Study of Teachers' Perceptions and Attitudes on Children from One-parent Families (한부모가족 아동에 대한 교사의 인식과 관련요인에 관한 연구)

  • Song, Da-Young;Sung, Jung-Hyeun;Han, Jeong-Won
    • Korean Journal of Social Welfare
    • /
    • v.52
    • /
    • pp.273-299
    • /
    • 2003
  • Children in one-parent families have difficulties from negative perception and prejudice in society in spite of increasing divorce rate and the substantial number of one-parent families. This research aims to provide basic setting-up materials of the equal educational environment to children in one-parent families by examining teachers' perception and attitudes towards those children, and also analysing which factors are associated with the teachers' perceptions and attitudes. In particular, by exploring teachers' internalized value system and stereotyped conception are closely related to the process of evaluating children's personality and behavior, this research suggests that social consciousness to one-parent families should be changed and improved in terms of equality. According to the research result, most teachers notice that children in one-parent families are increasing by number at schools, however, they do not seem to understand properly children's situations including psychological condition. Teachers' negative perception of children in one-parent families are not only influenced by teachers' socio-demographic characteristics, experience factors and children's school life, but also by teachers' own personal value of familism and divorce. Such teachers' attitudes towards one-parent family children are easily predicted to influence children's confidentiality and self-respect. Therefore, it is proposed that the change of social consciousness on one-parent families, the change of educational system and educational environment, development of educational training program for teachers, allocation of school social worker or school counsellor, and empowerment of one-parent family are necessary in order children in one-parent families to have more equitable opportunities at school.

  • PDF

Effect of bovine recombinant somatotropin protein on milk yield in Hanwoo (소 재조합 somatotropin 단백질을 이용한 한우 유량 증진 효과)

  • Woo, Jae-Seok;Lee, Seung-Hwan;Lee, Myeung-Sik;Park, Jung-Yong;Kim, Min-Kyu;Hong, Sung-Goo
    • Korean Journal of Agricultural Science
    • /
    • v.38 no.4
    • /
    • pp.667-672
    • /
    • 2011
  • This study was carried out to increase the breeding rate using sustained recombinant bovine somatotropin (bST) and examine the reproductive disorder and disease prevalencies of cow and calf, respectively. Sixty cows were allotted randomly to three groups in randomized complete block design; (1) No treatment, (2) 500 mg bST two times + 250 mg bST SC injection five times from 3 weeks before to 9 weeks after parturition every two weeks, (3) 500 mg bST two times before 3 weeks parturition + 250 mg bST SC injection three times from five to 9 weeks after parturition every two weeks. Developmental data of birth weight, weaning weight, total gain and average daily gain in control was $22.9{\mu}0.45$ kg, $88.0{\mu}1.13$ kg, $65.1{\mu}0.74$ kg and $0.54{\mu}0.08$ kg, respectively. There is no significant difference between Group 1 and 3 in the examined factors. However, there is significant difference between Group 1 and 2 in the birth weight ($24.4{\mu}0.88$ kg), weaning weight ($101.0{\mu}1.77$ kg), total gain ($76.7{\mu}0.9$ kg) and average daily gain ($76.7{\mu}0.9$ kg). Total gain was showed higher in Group 2 and 3 than Group 1 in the >2nd parity, and in Group 2 than Group 1 and 3 in the 1st parity. There is no significant difference in the BCS, no return days and disease occurrence of cow and calf by bST treatment. Number of service per conception was slightly increased in the Group 3 compared to Group 1 and 2. To increase the breeding ability of Hanwoo, it is recommended that 500 mg bST two times + 250 mg bST injection five times from 3 weeks before to 9 weeks after parturition every two weeks.

A Study on Urinary Incontinence of Elderly Communities (지역사회 거주 노인의 요실금에 관한 연구)

  • Ju, Young-Hee;Kim, Jung-Soon
    • Research in Community and Public Health Nursing
    • /
    • v.11 no.2
    • /
    • pp.441-452
    • /
    • 2000
  • The purpose of this study was to identify the prevalence of urinary incontinence and its relating factors elderly communities. Subjects of this survey consisted of 877 elderly women and men in one Kun. Korea, who were over 60 years old. The design for this study was descriptive: the subjects were interviewed by well trained investigators from July 9. 1999 to July 20. 1999. During that survey period, the subjects were interviewed with a structured questionnaire. The data were analyzed by frequency, percentage, $X^2-test$. T-test using an SAS program. The results of the study were the following: 1. The prevalence rate of urinary incontinence was 20.1 %. of the total. The types of urinary incontinence were mixed incontinence 44.3%. stress incontinence 38.1%. and urge type incontinence 17.6%. 2. The relating factors of urinary incontinence were as follows: 1) 33.5% of UI(urinary incontinence) subjects reported urine loss once a month. twice or three times a week 23.3%. one or two times a day 17.0% 2) 38.1% of elderly reported only 1 to 2 drops. 1 t-spoon 36.9%. 1 T-spoon 15.9% 3) The volume of urine loss registered by changing underwear was 63.1 %. no necessity of changing underwear was 22.1 %. or using some type of pads was 13.1%. 4) 62.5% of UI subjects never discussed their UI problem with other people. 73.9% of the total had never experienced any treatment for their UI problem. The reasons for not receiving medical cure were their typical conception about urinary incontinence taking UI as a normal part of aging 76.2% and due to their bad financial situation 9.2%. 3. Women had more prevalence of UI than men (p=0.01), and it was found that the worse the subjective health state. the higher the prevalence of UI (p=0.001). However. there was no statistical difference in daily frequency of UI (p>0.05). The more nocturnal incontinence (p=0.001), the more intermittent stream experience (p = 0.01), the more retention experience (p = 0.01), and the more incomplete the emptying experience (p=0.001), the higher the prevalence of UI. 4. UI groups had lower ADL scores than non UI groups(p=0.01). The level of depression in the group of urinary incontinence was significantly higher than that of non incontinence group (p=0.0001). As shown above, the elderly people suffering from UI haven't been treated properly: their subjective health state and their ADL competence was lower, and their depression level was higher than non UI groups. Therefore, the development of a proper urinary incontinence management program are required so that they can lead more healthy lives. Also continual case studies for the elderly people with UI are necessary.

  • PDF