• Asian-Australasian Journal of Animal Sciences
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• 제26권9호
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• pp.1282-1288
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• 2013

A comparative slaughter trial was conducted to estimate the phosphorus (P) requirement for maintenance and growth of crossbred lambs of Dorper with a Chinese indigenous sheep breed, thin-tailed Han sheep. Thirty-five Dorper${\times}$thin-tailed Han crossbred, noncastrated ram lambs ($20.3{\pm}0.22kg$ of shrunk body weight (SBW)) were used. Seven lambs were randomly chosen and slaughtered at 20 kg SBW as the baseline group for measuring initial body composition. Another seven lambs were also randomly chosen and offered a pelleted mixed diet for ad libitum intake and slaughtered at 28 kg SBW. The remaining 21 sheep were randomly divided into 3 groups with 7 sheep each and subject to the same diet of either 70 or 40% of ad libitum intake. The 3 groups were slaughtered when the sheep fed ad libitum reached 35 kg of SBW. Body P contents were determined after slaughter. The results showed that the net P requirement for maintenance was 30.0 mg/kg of empty body weight (EBW) or 23.4 mg/kg body weight (BW), and the P requirement for growth decreased from 5.3 to 5.0 g/kg of EBW gain as the lamb grew from 20 to 35 kg. The net P requirement for growth of Dorper${\times}$thin-tailed Han crossbred ram lambs was lower than that of sheep adopted by the American nutritional system.

• Asian-Australasian Journal of Animal Sciences
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• 제27권9호
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• pp.1293-1302
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• 2014

The aim of study was to determine the energy requirements for maintenance and growth of forty-one Saanen, intact male kids with initial body weight (BW) of $5.12{\pm}0.19$ kg. The baseline (BL) group consisted of eight kids averaging $5.46{\pm}0.18$ kg BW. An intermediate group consisted of six kids, fed for ad libitum intake, that were slaughtered when they reached an average BW of $12.9{\pm}0.29$ kg. The remaining kids (n = 27) were randomly allocated into nine slaughter groups (blocks) of three animals distributed among three amounts of dry matter intake (DMI; ad libitum and restricted to 70% or 40% of ad libitum intake). Animals in a group were slaughtered when the ad libitum-treatment kid in the group reached 20 kg BW. In a digestibility trial, 21 kids (same animals of the comparative slaughter) were housed in metabolic cages and used in a completely randomized design to evaluate the energetic value of the diet at different feed intake levels. The net energy for maintenance ($NE_m$) was $417kJ/kg^{0.75}$ of empty BW (EBW)/d, while the metabolizable energy for maintenance ($ME_m$) was $657kJ/kg^{0.75}$ of EBW/d. The efficiency of ME use for NE maintenance ($k_m$) was 0.64. Body fat content varied from 59.91 to 92.02 g/kg of EBW while body energy content varied from 6.37 to 7.76 MJ/kg of EBW, respectively, for 5 and 20 kg of EBW. The net energy for growth ($NE_g$) ranged from 7.4 to 9.0 MJ/kg of empty weight gain by day at 5 and 20 kg BW, respectively. This study indicated that the energy requirements in goats were lower than previously published requirements for growing dairy goats.

• Asian-Australasian Journal of Animal Sciences
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• 제10권1호
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• pp.122-133
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• 1997

Purified diets containing 5 graded levels of threonine were fed to young, growing and finishing pigs to determine the threonine requirement for growth and maintenance. A model was developed to subdivide the threonine requirement for the maintenance from the requirement for growth. From this model, the threonine requirement for growth was 7.733, 10.968 and 11.235 g/kg live weight gain and the maintenance requirement was 0.118, 0.048 and 0.024 g per unit of metabolic body size at each stage of growth, respectively. In the young pigs, the threonine requirement for growth was 0.388 g/g N gain and the maintenance requirement was 0.122 g per unit of metabolic body size. The breakpoint of plasma threonine concentrations was 3.995, 7.933 and 7.738 g/d, respectively. Expected requirements obtained from these formulae were in general agreement with previous estimates. Based on the weight gain vs N gain equation, about 4.24% of the retained protein was comprised of threonine and compared to 3.81%, the mean threonine content of pig muscle CP.

• Asian-Australasian Journal of Animal Sciences
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• 제10권1호
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• pp.86-97
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• 1997

Purified diets containing 5 graded levels of methionine + cystine were fed to young, growing and finishing pigs to determine the methionine + cystine requirement for growth and maintenance. A model was developed to subdivide the methionine + cystine requirement for maintenance from requirement for growth. From this model, the methionine + cystine requirement for growth was 8.633, 10.260 and 9.293 g/kg live weight gain and the maintenance requirement was 0.049, 0.016 and 0.019 g per unit of metabolic body size at each stage of growth, respectively. In the young pigs, the methionine + cystine requirement for growth was 0.491 g/g N gain and the maintenance requirement was 0.059 g per unit of metabolic body size. The breakpoint of plasma methionine + cystine concentrations was 3.888, 6.935 and 8.116 g/d, respectively. Expected requirements obtained from these formulae were in general agreement with previous estimates. Based on the weight gain vs N gain equation, about 4.44% of the retained protein was comprised of methionine + cystine and compared to 3.31%, the mean methionine + cystine content of pig muscle CP.

• Asian-Australasian Journal of Animal Sciences
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• 제10권1호
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• pp.54-63
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• 1997

Purified diets containing 5 graded levels of lysine were fed to young and growing pigs to determine the lysine requirement for growth and maintenance. A model was developed to subdivide the lysine requirement for the maintenance from requirement for growth. From this model, the lysine requirement for growth was 18.018 and 19.431 g/kg live weight gain and the maintenance requirement was 0.115 and 0.033 g per unit of metabolic body size at each stage of growth, respectively. In the young pigs, the lysine requirement for growth was 0.950 g/g N gain and the maintenance requirement was 0.114 g per unit of metabolic body size. The breakpoint of plasma lysine concentrations was 8.695 and 13.464 g/d, respectively. Expected requirements obtained from these formulae were in general agreement with previous estimates. Based on weight gain vs N gain equation, about 7.92% of the retained protein was comprised of lysine as compared to 7.11%, the mean lysine content of pig muscle CP.

• Nutrition Research and Practice
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• 제14권2호
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• pp.160-166
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• 2020

BACKGROUND/OBJECTIVES: The obese population is rapidly increasing because of reduced physical activity and a Westernized diet; consequently, various chronic diseases are more prevalent. With the increasing interest in body shape and appearance, research on body shape perceptions and accompanying weight control behaviors are needed for healthy weight management. SUBJECTS/METHODS: A cross-sectional survey was conducted on randomly selected 536 (209 men and 327 women) aged 20 to 65 years. Body mass index (BMI), body-shape perception, weight control behavior, quality of sleep, and place of residence were collected using self-reported questionnaires. Multivariable logistic regression analysis was conducted using complex design in each groups. Collected data were analyzed using the SAS 9.4 statistical package, and the significance level was set at P < 0.05. RESULTS: When these two variables were divided into four groups, they were found to influence dieting attempts. People with abnormal weights who were dissatisfied with their body shapes attempted dieting 5.23 times more than those with healthy weights and satisfaction with their body shapes. Further, those with normal weights but dissatisfaction with their bodies attempted dieting 4.45 times more than those who were satisfied with their shapes. Subjects in their 20s attempted dieting 2.53 times more than those in their 30s and 40s, and female subjects attempted dieting 2.24 times more than male subjects. CONCLUSIONS: A correct perception of one's shape can be an important factor for dietary behavior, as body shape perceptions and dieting attempts are strongly related. Additionally, healthy weight management and nutrition education are important elements to incorporate into a weight control program aimed at preventing excessive weight control behaviors and promoting correct perceptions of body shape.

• Journal of Nutrition and Health
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• 제40권7호
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• pp.658-666
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• 2007

본 연구는 체격, 체중감량 목표 및 개념, 지식정도 등의 체중감량에 대한 인식을 조사하기 위하여 수행되었다. 1) 조사대상자의 평균 연령은 남성 39.9세 여성 39.3세였고, 신장, 체중과 BMI는 연령과 성별에 따라 유의적인 차이 (p<0.05)를 나타내었다. 2) 비만도의 분포는 연령이 높고 남성의 경우 과체중과 비만이 유의적으로 많았다 (p<0.05). 3) 본 연구의 대상자들은 연령이 낮거나 여성의 경우 체중이 저체중이거나 정상체중임에도 불구하고 희망체중은 낮아 왜곡된 체형인식을 가지고 있었다. 4) 체중감량에 대한 목표는 연령이 낮을수록 외모적 이유로, 연령이 높을수록 건강상의 이유라고 대답하였다 (p<0.05). 체중감량 개념에 대해서는 연령이 낮을수록 "약간 마르거나 날씬한 몸매를 유지하는 것"이라고 인식한 반면, 연령이 높을수록 "정상 체중에 도달하기 위해 노력하는 것" 또는 "병에 걸리지 않도록 체중을 유지하는 것"이라고 대답하여 연령에 따른 유의적인 차이를 보여주었다 (p < 0.05). 5) 체중감량과 식습관, 운동 및 영양지식과 같은 체중감량에 관한 지식에 관한 연령과 성별에 따른 총 정답률의 유의적인 차이는 보이지 않았다. "물도 살을 찌게 한다"라는 문항은 68.5%의 가장 낮은 정답률을 보였으며, "아침식사를 거르는 것은 다이어트에 효과적이다"라는 문항에 91.7%의 가장 높은 정답률을 보였다. 본 연구 결과 성별, 연령별에 따라 체중감량에 대한 인식 목적 희망체중감량 목표 등에서 유의적인 차이가 나타났다. 따라서 체중감량을 위한 영양교육 자료 개발시 성별, 연령별로 특화된 맞춤형 영양교육 컨텐츠 개발이 필요하리라 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• 제3권2호
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• pp.85-89
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• 1990

Sixteen Harnai lambs were used in a completely randomized design to study the nutritive value of fourwing saltbush as a winter maintenance browse in comparison to native range grazing with or without protein and energy supplementation at Tomagh Range Livestock Research Station, in Loralai District, Balochistan. The animals were divided into four groups of four lambs each. These four groups were assigned four treatments at random: fourwing saltbush grazing alone, range grazing plus lucerne hay (100 g/head/day), range grazing plus barley grain (100 g/head/day) and range grazing alone for ten weeks. The results indicate that the two range grazing plus supplementation treatments produced weight gains which were not significantly different from each other (p < 0.05). Both of these treatments yielded significantly higher weight gains (p < 0.05) than did range grazing alone except for the last week of the study. Fourwing saltbush grazing provided cumulative weight gains at 3, 4, 6, 7 and 8 weeks which were not significantly different from the range grazing plus lucerne hay treatment and gained an average of 6 percent in body weight over the 10 week period of study. The carrying capacity for sheep of a mature stand of fourwing saltbush was approximately 20 Sheep-kg-days (SKD) of grazing per cubic meter of foliage. Results of this study suggest that under fourwing saltbush grazing alone, lambs do not only maintain their body weights but can also gain weight in winter.

• 동아시아식생활학회지
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• 제16권3호
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• pp.272-280
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• 2006

This study examined the weight control and food habits in 160 obese children and 191 normal-weight children in 4th, 5th and 6th graders of some elementary schools in Gumi city. Regarding the subjects' self-recognition of their body shape, 27.8% of the normal weight group and 92.5% of the obese group acknowledged themselves to be obese. 58.9% of the normal weight group and 61.0% of the obese group were not satisfied with their own body shape and the difference between two groups was very small, 23.6% of the normal weight group and 87.5% of the obese group have tried to reduce weight. The main causative factor of weight gain that children themselves recognized was a sedentary life style. All the students showed a high rate of irregular and unbalanced diet. The obese children showed a significantly higher rate of skipping meals and eating meals faster than the normal weight children. More obese children disliked exercise, and did less excercise than the normal weight children. There was a negative correlation between the obesity index and the food habit score. In other words, they frequently skip a meals, eat in a hurry and dislike vegetables and dairy products. In addition, there was a positive correlation between the student's BMI and the parents' BMI. Overall, many normal weight children showed a high level of self-consciousness of being obese or underweight. Both groups showed a low degree of satisfaction with their own body shape. Therefore education for the distorted perception of body shape is needed because, even normal weight children have tried to reduce their weight. Obese children should be encouraged to exercise, not skip a meals and eat slowly. They also need a systematic education program on weight reduction and weight maintenance. Moreover, education on a healthy diet, healthy food habits, and healthy body shape are necessary for elementary school children.

• Journal of Preventive Medicine and Public Health
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• 제16권1호
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• pp.105-112
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• 1983

To characterize the diet and physical exercise patterns of bank personnel for the health maintenance, a questionnaire was administered to all the employess (1,249) of Daegu Bank in June 1983 among whick 78.1% (976) responded. Three quarters of the respondents were between 20 and 34 years old. About 30% of 20-24 years old group were male compared with 73.1% of 25-39 years old group. Major findings of the survey are as follows: 1) The most concerned chronic disease of the respondents were in the order of cancer (27.4%), psychiatric disease (15.1%), hypertension (14.1%), heart disease (13.7%) and tuberculosis (7.9%). 2) For the prevention of adulthood disease and obesity, 53.4% of the respondents were restricting sugar intake; 40.9%, salt: and 35.1%, fat-rich food. 3) Among all the respondents 36.9% were making effort to reduce body weight and 17.7% were trying to gain body weight. 4) The proportion of respondents who practice physical exercise for the health maintenance was 82.9% in male and 62.5% in female.