This study analyzed the effect on weight and average daily gain, carcass grade, and blood characteristics and immunity in case of dietary addition of pegmatite to Hanwoo steers. Relative to Hanwoo steers, initial body weight was 257.3±11.74 kg (8-months old after birth). Forty-eight Hanwoo steers were fed for 24 months using random arrangement (4 treatment plots×4 heads×3 repeat). The treatment plot (498.75~500.82 kg) had higher weight during the early fattening stage compared with that of the control plot (474.37 kg) (p<0.05). Regarding total cholesterol of the blood, the value was similar to one during initiation of testing, but the value increased gradually based on the progress of fattening. In addition, the triglyceride was considerably low in T2~T3 plots with high addition of pegmatite during the late fattening stage compared with other treatment plots (p<0.05). This study revealed a tendency in the IgG content that represented immunity as the addition of pegmatite became higher (p>0.05). This study found that the treatment plot (441.55~452.10 kg) had higher carcass weight compared with the control plot (436.30 kg). However, this study revealed that the treatment plot (2.30~2.55 points) had higher carcass quantity grade compared with the control plot (2.11 points). This study found that the control plot (3.55 points) had higher carcass quality grade compared with the treatment plot (2.67~3.09 points) (p>0.05). With studies combined, it was determined that dietary addition of pegmatite to the feed as clay minerals in fattening Hanwoo steers would improve feed intake, body weight gain and carcass quantity grade.

This study was conducted to estimate growth curve parameters by sex in Korean native Goat. Weight-age data from 148 male goats and 169 female goats raised at Animal Genetic Resources Research Center in Korea were used in this study. Growth curve parameters were estimated from nonlinear regression using Gompertz and Logistic models. Mature weight ( ) and growth rate () of male goats were 50.0 kg, and 0.0038, respectively, when Gompertz model was used. They were 47.9 kg and 0.0062, respectively, when Logistic model was used. In female goats, mature weight ( ) and growth rate () were 35.8 kg and 0.0030, respectively, when Gompertz model was used. They were 34.6 kg and 0.0046 when Logistic model was used. The goodness of fit determined by R2 was higher in the Gompertz model than that in the Logistic model. The growth curve functions estimated from the Gompertz model in Korean-native male and female goats were , respectively. The inflection point () showed that the maximum growth rate and the weight at inflection (  ) estimated from the Gompertz model were 234.8 days and 18.37 kg, respectively, in male goats. They were 235.7 days and 13.16 kg, respectively, in female goats. The growth pattern of Korean-native goats obtained from this study might be useful for determining their feeding and management plans by sex and design breeding strategies.

This study investigated the effect on body length, body width, body weight and mortality of larva white-spotted flower chafers(Protaetia brevitarsis seulensis) that the feeds as a secondary feed aloe, apple, banana, persimmon and sweet pumpkin being sold on the market. Weight of larvae increased the most in a sweet pumpkin 2,966 mg, and was followed by banana and persimmon. Weight increased in the aloe the control as the lowest in 2,179 ~ 2,127 mg. It fed the sweet pumpkin showed the highest cumulative increase of 240% in the body length then the persimmon was a cumulative increase of 232%. It fed the sweet pumpkin showed the highest cumulative increase of 254% in the body width and the lowest cumulative increase of 232% was the control. It fed the sweet pumpkin showed the highest cumulative increase of 240% in the body weight then the persimmon, banana, apple in order. Mortality showed most of the high mortality rate of 19.8% in the sweet pumpkin and apple and banana and the lowest mortality rate showed a mortality rate of 13.2% in the control. Although these results sweet pumpkin, persimmon and banana are expected higher utilization as a secondary feed, it should be reviewed in various feeding ways how to reduce the changes of the artificial breeding environment.

Growth traits, such as body weight, directly influence productivity and economic efficiency in the swine industry. In this study, we estimate heritability for body weight traits usinginformation from pedigree and genome-wide single nucleotide polymorphism (SNP) chip data. Four body weight phenotypes were measured in 1,105 F2 progeny from an intercross between Landrace and Jeju native black pigs. All experimental animals were subjected to genotypic analysis using PorcineSNP60K BeadChip platform, and 39,992 autosomal SNP markers filtered by quality control criteria were used to construct genomic relationship matrix for heritability estimation. Restricted maximum likelihood estimates of heritability were obtained using both genomic- and pedigree- relationship matrix in a linear mixed model. The heritability estimates using SNP information were smaller (0.36-0.55) than those which were estimated using pedigree information (0.62-0.97). To investigate effect of common environment, such as maternal effect, on heritability estimation, we included maternal effect as an additional random effect term in the linear mixed model analysis. We detected substantial proportions of phenotypic variance components were explained by maternal effect. And the heritability estimates using both pedigree and SNP information were decreased. Therefore, heritability estimates must be interpreted cautiously when there are obvious common environmental variance components.

In this study, the effect of energy and protein ratio on the nutrient availability and body weight gain was determined to find the proper nutrient level for the stage of replacement dairy heifers before fertilization at approximately 12~24 months old after birth. Dry matter intake showed that the TDN/CP rate of T1 (5.0:1), T2 (4.5:1) and T3 (4.0:1) resulted in similar values. Among feces, the ash content of T1 was 11.07%, which was significantly (p < 0.05) higher than that of T3 (9.69%). It was also significantly (p < 0.05) higher than that of T2 (10.32%). When the TDN/CP rate was increased, the ash content in the feces was also increased. Regardless of the initial weight, weight gain was increased significantly as the CP rate in the feed was increased on the 30th day. On the 60th day, T2 showed the highest rate of gain (p < 0.05). As the TDN rate was decreased or the protein rate was increased, weight gain was significantly (p < 0.05) increased. Regarding GPT level in the blood after finishing the test, T1 and T3 (112.6, 88.3 u/l) showed significantly (p < 0.05) higher value than T2 (50.9 u/l). For phosphorus level, T1 (46.3 mg/dl) showed significantly (p < 0.05) higher value than other treatments. For HDL cholesterol level, T2 (145.2 mg/dl) had significantly (p < 0.05) higher level than T1 (121.0 mg/dl) or T3 (132.3 mg/dl). For triglyceride levels, T3 (40.6 mg/dl) had significantly (p < 0.05) higher value than T1 (20.7 mg/dl) and T2 (29.0 mg/dl). For other blood parameters including BUN concentration, there were no significant (p > 0.05) difference among treatments. As a result, although feed intake and weight gain with TDN/CP rate of 4:1 showed best results, considering the excess body fat accumulation possibilities or blood metabolism, it seems 4.5:1 ratio is most appropriate.

This study was conducted to investigate the effectiveness of a nutrition and exercise education program on weight control and nutrition knowledge. The nutrition-exercise educational period was 12 weeks. The subjects were 160 adult women with an average age of 48.1 years. We investigated general characteristics, diet history, eating habits, and intake frequencies of six food groups by survey. A total of 94 women among the subjects participated in the pre and post nutrition knowledge evaluations and anthropometric data assessment. After the program, body weight, body mass index (BMI), and waist circumference significantly decreased. Further, % of body fat decreased, but not significantly. BMI significantly decreased (p<0.001) from 25.14 to 24.80 kg/m2, and waist circumference significantly decreased (p<0.001) from 79.72 to 77.63 cm. The nutrition knowledge scores of subjects significantly increased (p<0.001) from 8.01 to 9.03. However, there was little change in employment. These results suggest that the nutrition-exercise education program may improve obesity index and nutrition knowledge. However, it is necessary to develop a specialized weight control program for workers.

The objective of this study was to estimate the effects of test seasons on backfat thickness and age at 90 kg body weight in Duroc pig populations. Data of a total of 40,228 Duroc pigs performance tested from 2005 to 2014 were used. The effects of sexes, years and seasons of the tests were significant (p<0.01) for the both traits. The least squares mean of the age at 90 kg body weight of the pigs tested in 2014 was significantly less than that of the pigs tested in the previous years. And the pigs tested in spring reached 90 kg body weight faster than the pigs tested in the other seasons. The least squares mean of backfat thickness of the pigs tested in autumn was thicker than that of the pigs tested in the other seasons. Pigs tested in spring had the thinnest backfat. There were seasonal variations in the least squares mean estimates of the age at 90 ㎏ both in male pigs (134.06 to 134.36 days), and in female pigs (139.47 to 139.65 days). Seasonal variations were also detected in least sqaures means of the backfat thicknesses in male pigs (11.31-11.34 ㎜) and in female pigs (13.05-13.07 ㎜). The simple and rank correlation coefficients between breeding values estimated using the trait values unadjusted for seasonal effects and those using the trait values pre-adjusted for seasonal effects trait values were all unity, for the both traits. These results indicate that the adjustment of the trait values with regards to seasonal variation had no effects on the estimates from genetic evaluations.

The objective of this study was to investigate the interrelationship of weight and hormonal changes through the administration of vitamin A to first time pregnant heifers. A total of 28 Korean heifers was used for this study. The heifers were divided into two groups - with vitamin A (n=14) and without vitamin A (control) (n=14) in the feed. Body weight increased in vitamin A treated heifers starting 9 months until 15 months. After pregnancy, vitamin A treated heifers were found to maintain higher body weights than the control group. Pre-pregnancy and post pregnancy progesterone levels were not different between the two groups. Serum estradiol levels of heifers at different growth stages showed relatively higher E2 levels than the control. Also, the control during pregnancy may show higher serum E2 levels than the vitamin A treated heifers. The growth phase serum estradiol levels in heifers may be relatively higher than the control. During pregnancy it showed a similar trend. Serum levels of vitamin A treated heifers did not differ from pregnant heifers at 5 months of age. However, after 5 months from conception until 8 months of treatment it showed a high level. Serum cholesterol in pregnant cows was higher in the control group than the treatment from beginning until the end of pregnancy. This is considered to be related to fetus development during pregnancy, as well as the mother's health.

본 연구는 Sprague-Dawley 흰쥐 16마리를 이용하여 흰쥐 복강 및 피하지방 감소 후보 항체가 체중, in vivo 타장기 안전성 및 혈액성상 등 영양생리대사에 미치는 영향을 조사하고자 실시하였다. 무처리구(control), 비면역항체 처리구(NAb), 면양을 이용하여 기 개발된 흰쥐 복강(AAb) 및 피하지방 감소 후보항체(SAb)를 복강 주사하였을 때 주사 후 1주차에 SAb 처리구에서 사료 및 물 섭취량의 일시적인 감소가 나타났으나 그 이후에는 정상적으로 회복되는 것으로 보아 항체의 효과보다는 개체 차이에 기인하는 것으로 판단된다. 흰쥐 체중의 경우 항체 주사 처리 전․후 및 실험구 간 통계적인 유의차는 나타나지 않았다(p>0.05). SAb 처리구에서 나타난 주사 처리 후 1-2주 동안 일시적인 체중 감소 현상이 발생했으나, 통계적 유의성은 없었다(p>0.05). 후보 항체 주사 시 흰쥐 AAb 처리구는 control과 비교해서 생체 신장의 무게가 유의적으로 낮은 것으로 나타났다(p<0.05). 하지만, NAb 처리구의 신장 무게 역시 유의적인 감소를 보여(p<0.05) 결국 AAb 처리구의 신장 무게 감소는 주사에 의한 스트레스 또는 개체 간의 변이 때문인 것으로 생각된다. 신장을 제외하고는 후보 항체에 의한 주요 장기들(심장, 간장, 폐 및 비장)의 무게에는 실험구 간 유의적인 차이가 나타나지 않았다(p>0.05). 후보 항체에 의해 혈중 glucose, triglyceride 및 total cholesterol 농도에는 실험구 간 유의적인 변화가 나타나지 않았으며(p>0.05), 각 혈액대사물질의 농도는 일반적인 수준으로 나타났다. 이상의 결과를 볼 때, 본 연구에서 이용된 흰쥐AAb 및 SAb는 in vivo 영양생리대사에 부정적 영향을 미치지 않는 안전한 항체로 판단된다.

본 연구에서는 뽕잎차와 Monascus pilosus로 발효시킨 뽕잎차가 ICR mouse의 체중과 간 조직 항산화계 효소류의 활성에 미치는 영향을 조사하기 위하여 정상대조군(NC), 고지방식이 대조군(HC), 뽕잎차 분말을 2% 혼합한 고지방 식이군(UM), 발효 뽕잎차 분말을 2% 혼합한 고지방 식이군(FM)으로 나누어 8주간 사육하였다. 체중증가량에 있어서는 HC군의 주당 체중증가량은 NC군에 비해 2.13배로 높았으나, UM군과 FM군은 NC군의 1.80 및 1.67배로 체중증가량이 크게 완화되었다. 장기 중량은 고지방 식이군에서 증가되었던 간의 중량은 UM과 FM군에서 회복되는 경향을 보였으며, 신장의 경우에도 NC군 수준으로 회복되는 경향을 나타내었다. 부고환 주변 지방의 함량은 UM과 FM군의 경우 모두 고지방식이로 현저하게 증가된 지방함량을 유의적으로 감소시켰으며, 그 효과는 FM군에서 현저하였다. ALT 활성은 HC군이 NC군에 비하여 2.56배나 높은 수치를 나타내었으며, UM군과 HC 간의 유의차는 보이지 않으나 FM군은 HC군에 비하여 유의적으로 낮았다. TG, TC, LDL-cholesterol의 함량 및 동맥경화지수(AI)는 HC군은 NC군에 비하여 각각 18.42%, 39.59%, 212.56% 및 230.70%가 증가하였으며, HDLcholesterol 함량은 17.84%가 감소하였다. UM군의 TG, TC, HDL- 및 LDL-cholesterol 함량은 HC군과 유의적인 차이가 없으나, FM군에서는 유의적인 차이를 보였으며, 동맥경화지수도 HC군 2.63, UM군 2.09, FM군 1.70으로 FM군에서 양호한 결과를 나타내었다. 간 조직 TG 함량은 UM 및 FM군이 HC군에 비하여 25.18∼25.72%가 감소되었으며, 총 콜레스테롤의 함량에서도 TG와 유사한 경향을 보였다. Glutathione(GSH)의 함량은 FM군이 UM군에 비하여 유의적으로 증가하였으며, lipid peroxide(LPO)의 함량은 UM군과 FM군은 HC군에 비하여 각각 49.82% 및 44.52% 감소하였다. Xanthine oxidase(XO) 활성은 UM군과 FM군에서는 HC군에 비하여 각각 38.41% 및 53.62%가 감소하였다. SOD 활성은 UM과 FM군 모두 NC군과 유사한 활성을 나타내었다. Glutathione S-transferase(GST)활성은 UM군과 FM군은 고지방 식이에 의해 감소된 HC군의 활성을 14.81∼23.46% 증가시켰다. Glutathione peroxidase(GPX) 활성(NADPH nmole/min/mg protein)은 고지방 식이 대조군인 HC군에서의 활성은 NC군의 65.59%에 불과하였으나, UM군과 FM군은 HC군에 비하여 각각 22.95% 및 38.52% 증가하였다. 간 조직을 검경한 결과, 고지방 식이 대조군인 HF군에서는 간 조직 세포가 지방 방울의 축적에 의해 확장되어 간굴모세혈관(hepatic sinusoids)이 폐쇄된 상태였다. 하지만, UM군과 FM군에서는 중심정맥 주위의 세포들이 정상적으로 잘 보존되어 있으며, 간 소엽의 간세포삭과 간 조직 세포 내에 지방방울의 축적이 보이긴 하나 구분이 가능하며, UM군에 비하여 FM군 쪽의 간 손상이 보다 경미한 것으로 나타났다. 이상의 실험결과, M. pilosus로 발효시킨 뽕잎차는 정상식 이군에서는 간 조직 손상과 관련된 LPO의 함량을 경감시키는 효과와 함께 경미한 체중 감소 효과가 있는 것으로 사료되며, 고지방 식이에 의한 비정상 생리 상태에서는 비만 해소와 ROS 생성계효소의 저해와 소거계 항산화 효소의 활성화를 통한 간 기능 증진과 조직 손상을 예방 또는 경감시키는 효과가 있는 것으로 생각된다.

This study was conducted to determine the effect of dietary whole-crop barley silage on average daily feed intake, average daily weight gain, velvet antler yield and economic efficacy in sika deer during growth. A total of 24 sika deer (initially 56.3 kg BW) of 24 months age were allotted in arrangement in a completely randomized design. The three treatments were: T1(hay diet), T2(whole-crop barley silage), and T3(50% hay+50% whole-crop barley silage). Concentrate feed were 1.5% feeding of body weight with all groups. Average daily weight gain of T3 was higher than those of others for the entire experimental period. Average daily feed intake of sika deer in decreasing order was as follows; T1>T3>T2. The velvet antler yield was highest in T3 group (315±112 g) compared with T1 (276±59 g) and T2 (283±108 g). However, there was no significant difference in average daily feed intake, average daily weight gain, velvet antler yield(p>0.05). In economic efficacy, T3 was about 15-29% higher than that of T1 and T2. In conclusion, the mixed feeding of 50% hay and 50% whole-crop barley silage was more effective in average daily feed intake, average daily weight gain, velvet antler yield and economic efficacy in sika deer

The purpose of this study was to investigate the effect of food behavior on dietary food intake status and health condition based on research of food behavior and nutritional intake status of university students in the Chungnam area. The average age, height, and weight of the subject group were 22.1 years old, 174.2 ㎝, and 67.0 ㎏ for the male students and 20.9 years old, 161.8 ㎝, and 53.4 ㎏ for the female students, respectively. From the nutritional intake status data, the averaged daily energy intake of both groups, male and female, are lower than the dietary reference intake(KDRI), as 2, 169.2 kcal and 1, 846.2 kcal, males and females, respectively. The lipid intake ratio was higher than the dietary reference figure, and the carbohydrate intake ratio was determined to be in the proper range. Male students(54.6%) and female students(52.0%) of the entire subject group skipped a breakfast mainly due to insufficient time, and the time at which meals were consumed, was determined to be irregular generally. In a day, male and female students have a heavier dinner than lunch(p<0.05), respectively. Meat and fishes are preferred by the entire subject group, and the number of students, who do not eat carrot and mayonnaise(p<0.05), was determined to be the highest, of all foods surveyed. The averaged daily activity coefficient and the resting energy expenditure shows significant difference(p<0.001) between two groups; was 1.7 and 1.6 and the second was 1, 404.3 kcal/day and 1, 292.5 kcal/day for the male and female groups, respectively. As the number of attempting to reduce body weight(p<0.001), the amount smoking(p<0.001), or the frequency of drinking alcohol increases, BMI decreases. On the other hand, as body shape satisfaction increases, BMI increases also.

This study was performed to investigate the eating habit, body image, and weight control behavior by BMI in Korean female high school students. Data on the 16, 574 subjects was obtained from the sixth Korea Youth Risk Behavior Web-based Survey (2010). Only 52.2% of the subjects had regular breakfast. The rate of skipping breakfast was higher in the underweight group than in the obese group, but the rate of skipping dinner was on the contrary to this. Underweight students had a higher intake frequency of fruits, fast food, instant noodle, and snacks than the obese groups. 3.5% of underweight students considered themselves to be overweight or obese. 53.4% of obese students considered themselves to be overweight. The experience of weight control increased according to BMI, but underweight students considered weight control as an effort to be slimmer. Meal restriction was used more frequently to control weight. The perceived stress level was higher in obese student, especially due to appearance. Therefore, an appropriate, integrated and personalized high school nutrition program should be established for proper body image perception and to develop the self-esteem of female high school students.

This study aimed to find the differences in weight control status and eating behavior of satisfied and dissatisfied female high school students regarding their own body shape. The participants consisted of 238 students at two female high schools in Nonsan-si, Chungnam-do in May of 2008. Self-assessment evaluated present body shape and ideal body shape they would like to have by providing silhouette drawings. The subjects were divided into two groups, 'satisfied' and 'dissatisfied', according to the differences between present body shape and ideal body shape. In the distribution of subjects according to body mass index, 100% of overweight, 97.0% of normal weight and 48.7% of underweight belonged to the dissatisfied group. There were significant differences in weight control and eating behavior between dissatisfied and satisfied groups in terms of frequency and reasons of conducting weight control behavior, body weight return after weight reduction, skipping breakfast and consuming fast food. The satisfied group was two times more likely to not conduct weight control behaviors compared to the dissatisfied group. The main reason for trying to control weight differed according to the group; the reason was feeling fat in the dissatisfied group and desiring to be healthy in the satisfied group. The percentage of subjects that returned to their original weights after weight reduction was 5 times higher in the dissatisfied group. The percentages of subjects that regularly skip breakfast and consume fast food were both higher in the dissatisfied group than in the satisfied group. The dissatisfied group responded 'eating alone' more frequently among nine binge eating behaviors compared to the satisfied group. Both groups, however, did not show any difference in overeating of meals, eating speed, intake frequency of regular meals, food preference, preferred cooking method, carbonated beverage intake and snack eating behavior. In summary, the dissatisfied group tried more unnecessary body weight reduction and had poor eating behavior. Accordingly, to correct the biased perception of body shape by the majority of female high school students, the values of our society should change toward the pursuit of beauty of health.

본 연구는 혼파초지에서 유 산양을 방목 이용하였을 때의 건물섭취량, 증체량 및 두당 방목초지의 소요면적을 산출하고자 2007년 4월부터 2008년 6월까지 충남대학교 동물사육장내 혼파초지에서 수행하였다. 공시초지는 2006년 9월 21일 orchardgrass (40%) + tall fescue (20%) + perennial ryegrass (10%) + alfalfa (15%) + red clover (15%)를 ha당 30 kg 파종하여 경운초지로

The study analyzed the body shape perception, weight control attitude, nutrition knowledge, and dietary habits of 529 high school students in Jeju surveyed from January 14-18, 2008 according to students' body shape satisfaction, with the aim of providing basic nutritional education data to aid in appropriate weight control for high school students. The data were analyzed by descriptive analysis, T-test, Chi-square test, ANOVA, and Pearson's correlation coefficients, using the SPSS Win 12.0 program. The body mass index (BMI) of subjects was in the normal range. With regard to weight distribution, 59.4% of subjects showed normal weight and girls were significantly more underweight than boys. More girls considered themselves to be fatter than boys and tended to be increasingly dissatisfied with their body shape. Both boys and girls were more interested in weight control for obesity and were significantly less satisfied with their body shape. Efforts at weight control and reduction had occurred significantly more often for girls than for boys. Dietary attitude scores were significantly higher in girls than boys. BMI positively correlated to weight control concern and nutrition knowledge positively correlated to dietary attitude. BMI negatively correlated to the body shape satisfaction, which in turn negatively correlated to food ingestion disorders. Therefore, it is necessary to develop a systematic nutrition educational program that can induce changes in dietary behavior and increase accurate perception and satisfaction of body shape.