• The Monthly Diabetes
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• s.176
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• pp.48-51
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• 2004

• Journal of Nutrition and Health
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• v.43 no.6
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• pp.607-619
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• 2010

The purpose of this study was to identify the concepts of body image, weight control and food behavior in 520 Korean high school seniors from Seoul and Gyeonggi Province. A questionnaire survey was conducted to investigate body image, concern of weight control, experience of weight control, the first time to try weight control, plan for weight control, reasons of weight control and food behaviors related with weight control. Anthropometric parameters such as weight and height were measured. Finally, data from 497 high school seniors were used for statistical analysis. The results were as follows. Many subjects had misperceptions. Among the subjects who perceived themselves as 'fat', 57.8% were normal weight and 0.5% underweight. Among the subjects who perceived themselves as 'thin', 59.5% were normal weight, 0.9% overweight and 0.9% obese. Girls were more concerned about weight control than boys (4.20 vs. 3.66). Weight loss had been experienced by 61.5% of the subjects and weight gain by 12.8%. First weight control was attempted by 71.3% of the subject at high school and by 28.7% at middle school. The majority of subjects planned for weight control before their freshman year. The boys choose 'health' as the primary reason for weight control, whereas the girls chose 'good appearance'. The total score of food behaviors varied significantly according to BMI. Overweight and obese subjects had more desirable food behaviors than normal weight and underweight subjects (24.00, 24.06 vs. 21.92, 21.52). However, total scores of food behaviors showed no variation according to sex, weight control attempt and body image. In conclusion, the high school seniors had misconceptions about body image and weight control. They were exposed to a high risk of inappropriate weight control and food behaviors. Therefore, proper nutritional education programs need to be developed for high school seniors to prevent nutrition problems related to weight control and to maintain desirable food behaviors.

• Journal of Animal Science and Technology
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• v.49 no.2
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• pp.183-194
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• 2007

We examined the expression patterns of the chicken TCs(tentative consensus sequences) originated from GermOnline genes in various chicken tissues, applying information from GermOnline to chicken organisms. 42 TCs among 84 chicken homologous TCs from the pool of 84 genes related to germ cell lineage in mouse(10), rat(71) and human(3) had high homology based on a BLAST search. Of these, Hmgcs2 and Sycp3 was shown to be expressed in a testis- specific manner and a reproductive organ(testis and ovary)-specific manner, respectively, by RT- PCR analysis. Crmp4, Cyct, Ldhc, Epha7, Pcsk4 and Dnmt3a are expressed in brain, testis, and ovary. The characterization of chicken genes originated from GermOnline in this research may give an enormously useful source of information related to germ cell development.

• Journal of Nutrition and Health
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• v.40 no.7
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• pp.658-666
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• 2007

Among current health-related issues, obesity is considered one of the foremost, and the importance of this subject has fostered a national interest in body weight loss. In this study, the differences in recognition of body weight loss according to age and gender are investigated. The subjects of the study were 720 (male: 360 and female: 360) aged between 10-60 years, who had experienced to try body weight loss during 6 months prior to this study. Anthropometrics, general characteristics, personal reasons for body weight loss, comprehension of body weight loss, and a knowledge of diet-related issues were assessed through a questionnaire. The anthropometric measurements showed significant differences in height, body weight (present and desired) and BMI (p < 0.05) by age and gender. The difference between desired body weight and actual body weight was greater for younger subjects or female, regardless of whether they had under- or normal body weight (p < 0.05). Reasons for body weight loss varied; younger subjects and female tended to lose body weight "to enhance their appearances", whereas the older subjects and male desired "to improve their health" (p < 0.05). Subjects had different concepts concerning body weight loss; younger subjects and female considered body weight loss as "maintenance of a slender figure, or becoming more lean". On the other hand, older subjects and male thought body weight loss to be "effects approaching normal body weight" (p < 0.05). From our studies, it can be concluded that attitude on concerning body weight loss varied according to a age and gender. Thus, consideration of this individual differences would be vital in developing contents of a particular nutritional education program for body weight loss.

• Korean Journal of Animal Reproduction
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• v.27 no.2
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• pp.135-142
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• 2003

The objective of this study were to investigate the effects of Se and Vit. E administration at last month or two month before parturition on the reproductive function of dams and developmental ability of calves. On developmental ability of calves obtained afier Se and Vit. E administration at the last month of pregnancing periods, the birth weight were significantly higher in administration groups than in control group(P<0.05). However, the weaning weight, average daily gain and weaning age were not significantly difference in all experimental groups. In the comparision of reproductive function in dams, estrus postpartum was faster in treatment groups than control groups(P>0.05). However, the number of A.1 service fur conception were lower groups injected than control group(P>0.05), there were not significantly differences in all experimental groups. The developmental ability of calves obtained after Se and Vit. E administration at two months before parturition were also examined. The birth weight, weaning weight, average daily gain and weaning age were higher in treatment groups than control group, but there were not significantly differences in all experimental groups. In reproductive function of dams, the days to 1 st estrus postpartum was slightly faster injected groups than control group(P>0.05). Number of A.I. service for conception in each groups were lower in treatment groups than control group.

• Feed Journal
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• v.4 no.8 s.36
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• pp.108-113
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• 2006

양돈장에서 번식돈은 농장의 시작이자 마지막이라 과언이 아닐 것이다. 그만큼 중요한 돼지이며 번식돈 관리만 철저히 해도 소모성 질병으로부터의 피해를 어느 정도는 줄일 수 있다고 생각한다. 이렇게 중요한 번식돈 관리가 모두가 알고 있는 것처럼 여름철에는 매우 힘들다. 힘든 여름철 번식돈 관리의 핵심은 사료 섭취량에 있다. 사람도 여름철이되면 입맛이 떨어지고 차가운 물만 찾는 것과 마찬가지로 돼지도 그렇다. 덥기 때문에 사료 섭취량은 자연적으로 감소하게 되고 포유돈의 경우 줄어든 사료 섭취량은 모유 분비량에 직접적인 영향을 미치기 때문에 이유 제충이 감소하게 되고 이는 농장 총 육성률에 영향을 미치게 된다. 다시 말해서 여름철 포유돈 사료 섭취량 감소는 이유 체중, PSY(연간 모돈 두당 이유자돈수), MSY(연간 모돈 두당 출하두수) 그리고 WSY (연간 모돈 두당 출하체중)에 결정적인 영향을 미친다 해도 과언이 아닌 것이다. 여름철 번식돈 관리 방안을 논하기에 앞서 대한민국 여름철은 어떤 특징을 갖고 있는지 생각해보자. 여름철 날씨를 대중 목욕탕 사우나에 비교해서 설명해 보겠다. 대중 목욕탕에 가보면 사우나가 있는데, 이 사우나를 대한민국 여름철과 비교해 볼 수 있다. 사우나에는 건식과 습식 사우나가 있는데, 이 두 사우나실의 온도를 보면 건식보다 습식사우나실의 온도가 10~20℃ 정도 더 낮은 것을 볼 수 있다. 그러나 실제로 사람이 느끼는 온도는 습식 사우나실에 들어갔을 때 더 뜨겁게 느낀다. 상대적으로 낮은 온도임에도 불구하고 습식 사우나실이 더 뜨겁다고 느끼는 이유는 습도에 의한 것이다. 대한민국 여름철은 바로 습식 사우나실과 같은 환경인 것이다. 지금부터는 습식 사우나실과 같은 고온 다습한 대한민국 여름철 환경에서 번식돈이 받을 수 있는 고온스트레스의 정도와 고온 스트레스가 번식돈 생산성에 미치는 영향을 설명하고자 한다.

• 건강소식
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• v.36 no.5
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• pp.6-8
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• 2012

• Journal of the Korean Society of Food Science and Nutrition
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• v.31 no.6
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• pp.1084-1091
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• 2002

Mortierella alpina, a common soil fungus, is the most efficient organism for production of production acid presently known. Since arachidonic acid are important in human brain and retina development, it was undertaken the growing effect containing diet as a food ingredient. Arachidonic acid rich oil derived from Mortierella alpina, was subjected to a program of studies to establish for use in diet supplement. This study was compared the growth and learning effect of fungal oil rich in arachidonic acid by incorporated into diets ad libitum. Sprague-Dawley rats received experimental diets 5 groups (standard AIN 93 based control with beef tallow, extract oil 8%, and 4%, and Mortierella alpina in diet 10% and 20%) over all experiment duration (pre-mating, mating, gestation, lactation, and after weaning 4 weeks). Pups born during this period consumed same diets after wean for 4 weeks. There was no statistical significance of diet effects in reproductive performance and fertility from birth to weaning. But the groups of Mortierella alpine diet were lower of weight gain and diet intake after weaning. The serum lipids were significantly different with diet groups, higher TG in LO (oil 4%) group of dams, and higher total cholesterol in LF (M. alpina 10%) of pups, although serum albumin content was not significantly different in diet group. The spent-time and memory effect within 4 weeks of T-Morris water maze pass test in dam and 7-week- age pups did not differ in diet groups. On the count of backing error in weaning period of pups was lower in HO(extracted oil 8%) group. In the group of 10% and 20% Mortierella alpina diet, DNA content was lower in brain with lower body weight, but liver DNA relative to body weight was higher than control. Further correlation analyses would be needed DNA and arachidonic acid intakes, with Mortierella alpina diet digestion rate.

• Korean Journal of Agricultural Science
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• v.14 no.1
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• pp.61-67
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• 1987

The study was conducted to determine the main effects of breed, sire, parity, farrowing year and month on preweaning body weight and postweaning traits. The data analysis were the record of 253 male pigs produced from 54 boars of Landrace, Hampshire, Large Yorkshire and Duroc purebreds at National Animal Breeding Institute from 1978 to 1983. The results obtained in this study are summarized as follows. 1. The effect of breed on preweaning body weight was highly significant at 1% level for body weight at birth, 21 days and 56days, and effect of parity was highly significant at 1% level for body weight at 56 days. 2. On preweaning body weight by breed, Duroc was superior with $1.593{\pm}0.001Kg$ for body weight at birth, and Landrace was superior with $6.227{\pm}0.199$ and $18.590{\pm}0.493Kg$ for body weight at 21 days and 56 days, respectively. 3. The effect of breed on postweaning traits were highly signicant at 1% level for average daily gain, feed efficiency, backfat thickness and days to 90Kg, and the effect of parity was significant at 5% level for backfat thickness. 4. On postweaning traits by breed, Duroc was superior with $876.275{\pm}8.198g$ and $2.754{\pm}0.198$ for average daily gain and feed efficiency, respectively, and Hampshire was thin with $1.969{\pm}0.198$ em for backfat thickness.

• Journal of Animal Science and Technology
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• v.53 no.1
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• pp.15-22
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• 2011

The purpose of this study was to analyse of association between growth traits and single nucleotide polymorphisms (SNPs) polymorphism of phosphoglycerate kinase 2 (PGK 2) gene in pigs. The birth weight of piglet influences on weaning weight and survival rate that are import economic traits in pig industry. Also, these growth traits are representative factor to decrease a period getting to marketing weight as well as growth rate in pig. The PGK 2 is an isozyme that catalyzes the first ATP-generating step in the glycolytic pathwayand important enzyme related with energy metabolism. Twenty of SNPs were discoveredby genome structure analysis that compares the sequence on promoter and transcription region of PGK 2 gene in porcine chromosome 7. An association between PGK 2 SNPs and growth traits was analyzed in $F_2$ reciprocal-crossbred population between korean native pig (KNP) and Landrace. Association analysis indicated that polymorphism of the PGK 2 gene promoter region has significant effects on weight at birth (p<0.01) and weight at 3 weeks of age (p<0.0001). These results suggest that PGK 2 gene polymorphism was associated with energy metabolism and physiological function of growth in pig.