• Asian-Australasian Journal of Animal Sciences
• /
• 제28권2호
• /
• pp.180-187
• /
• 2015

This study was conducted to determine the effects of feeding by-product feed (BF)-based silage on the performance, blood metabolite parameters, and carcass characteristics of Hanwoo steers. The BF-based silage was composed of 50% spent mushroom substrate, 21% recycled poultry bedding, 15% cut ryegrass straw, 10.8% rice bran, 2% molasses, 0.6% bentonite, and 0.6% microbial additive (on a wet basis), and ensiled for over 5 d. Fifteen steers were allocated to three diets during the growing and fattening periods (3.1 and 9.8 months, respectively): a control diet (concentrate mix and free access to rice straw), a 50% BF-based silage diet (control diet+50% of maximum BF-based silage intake), and a 100% BF-based silage diet (the same amount of concentrate mix and ad libitum BF-based silage). The BF-based silage was fed during the growing and fattening periods, and was replaced with larger particles of rice straw during the finishing period. After 19.6 months of the whole period all the steers were slaughtered. Compared with feeding rice straw, feeding BF-based silage tended (p = 0.10) to increase the average daily gain (27%) and feed efficiency (18%) of the growing steers, caused by increased voluntary feed intake. Feeding BF-based silage had little effect on serum constituents, electrolytes, enzymes, or the blood cell profiles of fattening steers, except for low serum Ca and high blood urea concentrations (p<0.05). Feeding BF-based silage did not affect cold carcass weight, yield traits such as back fat thickness, longissimus muscle area, yield index or yield grade, or quality traits such as meat color, fat color, texture, maturity, marbling score, or quality grade. However, it improved good quality grade (1+ and 1++) appearance rates (60% for the control group vs 100% for the BF-based silage-fed groups). In conclusion, cheap BF-based silage could be successfully used as a good quality roughage source for beef cattle.

• 한국임상수의학회지
• /
• 제23권4권
• /
• pp.427-431
• /
• 2006

Pulse Doppler ultrasonographic evaluation was performed to investigate the resistive index (RI) of the Interlobar renal artery in 17 dogs (32 kidneys) which were diagnosed with an acute renal failure caused by ochratoxin-A and citrinin contaminated commercial diet. RI was investigated in 7 normal beagle dogs and recovered patients. The mean of RI was resulted as $0.69{\pm}0.04$ in normal dog, however, significantly (p<0.001) increased as $0.76{\pm}0.05$ in renal failure dog. But RI had no relationship with the results of blood chemistry, urine analysis, and excretory urographic image quality. From these results, even though the results of the renal function test were within a normal reference range, it was considered that RI index is more reliable to represent a damaged renal parenchyma, and may have the potential to be a useful clinical tool in monitoring of the renal function.

• 한국유기농업학회지
• /
• 제16권2호
• /
• pp.205-218
• /
• 2008

본 연구는 산란계에 대한 유기사료 첨가제로서 소나무 껍질 추출물, 피타민의 첨가효과를 조사하기 위하여 산란계(Hyline brown) 150마리를 이용하여 산란성적과 계란품질 평가를 실시하였다. 대조구, 피타민 0.1%, 피타민 0.2%로 구분된 3개의 처리구를 완전 임의배치하여 6주 동안 사육하였다. 산란성적은 피타민 0.1% 첨가구와 대조구가 서로 비슷하였으나 피타민 0.2% 첨가구는 가장 낮았다(p<0.05). 호우유니트는 피타민 0.1% 및 0.2% 첨가구가 대조구에 비해서 높게 나타났으며(p<0.05), 난각두께 및 파란강도는 피타민 0.1% 첨가구와 대조구 사이에 있어서 유의차가 없었다. 계란의 콜레스테롤은 피타민 0.1% 첨가구가 가장 낮았으며 통계적 유의차가 있었다(p<0.05). 계란의 포화지방산 조성은 피타민 0.2% 첨가구가 가장 낮았고 불포화지방산은 피타민 0.2% 첨가구가 가장 높았다(p<0.05). 저장 일수에 따른 계란의 호우유니트, 난황지수 및 난백지수는 피타민 0.1% 및 피타민 0.2% 첨가구가 대조구에 비해서 유의적으로 높았다(p<0.05). 결론적으로 소나무 껍질추출물, 피타민을 산란계 사료 내 유기사료 첨가제로서 0.1% 수준으로 첨가해주면 산란능력 및 계란의 품질을 일정하게 유지하면서 계란 저장성을 높일 수 있을 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제24권10호
• /
• pp.1399-1406
• /
• 2011

This study aimed to establish the optimum level of palm kernel meal in the diet of Santa Ines lambs based on the sensorial characteristics and fatty acid profile of the meat. We used 32 lambs with a starting age of 4 to 6 months and mean weight of $22{\pm}2.75kg$, kept in individual stalls. The animals were fed with Tifton-85 hay and a concentrate mixed with 0.0, 6.5, 13.0 or 19.5% of palm kernel meal based on the dry mass of the complete diet. These levels formed the treatments. Confinement lasted 80 days and on the last day the animals were fasted and slaughtered. After slaughter, carcasses were weighed and sectioned longitudinally, along the median line, into two antimeres. Half-carcasses were then sliced between the 12th and 13th ribs to collect the loin (longissimus dorsi), which was used to determine the sensorial characteristics and fatty acid profile of the meat. For sensorial evaluation, samples of meat were given to 54 judges who evaluated the tenderness, juiciness, appearance, aroma and flavor of the meat using a hedonic scale. Fatty acids were determined by gas chromatography. The addition of palm kernel meal to the diet had no effect on the sensorial characteristics of meat juiciness, appearance, aroma or flavor. However, tenderness showed a quadratic relationship with the addition of the meal to the diet. The concentration of fatty acids C12:0, C14:0 and C16:0 increased with the addition of palm kernel meal, as did the sum of medium-chain fatty acids and the atherogenicity index. Up to of 19.5% of the diet of Santa Ines lambs can be made up of palm kernel meal without causing significant changes in sensorial characteristics. However, the fatty acid profile of the meat was altered.

• 한국식생활문화학회지
• /
• 제25권6호
• /
• pp.652-660
• /
• 2010

The aim of this study was to develop a KDPS (Korean dietary pattern score) to assess dietary patterns and diet quality of Koreans from a food culture perspective. The KDPS was applied to dietary data collected during the Korean National Health and Nutrition Examination Survey of 2007, and the validity and reliability of the KDPS were evaluated. The targets of the study included 2,278 Korean adults aged 20n89 years. The KDPS was developed using the sum of the scores of 13 components. Each component scored up to 10 points and there was a total of 130 points. The first seven components were for the KSMS (Korean-style meal score) and assessed the dietary balance based on the 3-Chup Bansang daily basic table setting. The components numbered 8 to 13 were for the FGS (food group score), which measured the degree of compliance with the six major food groups based on the Korean recommendation for one serving size of grains, meats, vegetables, fruits, milk, and oils. This KDPS was verified through content validity, concurrent-criterion validity, principal components analysis, and a reliability analysis. The results showed that content validity and construct validity were high. The KDPS developed in this study adhered to the Korean dietary pattern and a healthy diet intake. Furthermore, this study presented an integrated index by scoring the Korean style table setting in addition to evaluating meals from a nutrition perspective. This study can be extended to develop a score for assessing.

• Asian-Australasian Journal of Animal Sciences
• /
• 제32권9호
• /
• pp.1407-1413
• /
• 2019

Objective: This experiment aimed to investigate the effect of different sources and inclusion levels of dietary fat on productive performance and egg quality in laying hens raised under hot environmental conditions. Methods: A total of 480 Hy-Line Brown laying hens at 31 wk of age were randomly allotted to 1 of 5 experimental diets. The control diet contained 2,800 kcal/kg nitrogen-corrected apparent metabolizable energy with no fat addition. Four additional diets were prepared by adding 2.0% or 4.0% of animal fat (AF) or soybean oil (SO). Energy and nutrient concentrations were consistent among all diets. Diets were fed to hens for 4 weeks. Average daily room temperature and humidity were $26.7^{\circ}C{\pm}1.52^{\circ}C$ and $77.4%{\pm}4.50%$. The heat stress index was approximately 76, indicating that hens were raised under heat stress conditions. Results: Final body weight (BW) was greater (p<0.05) for hens fed diets containing 2.0% or 4.0% AF than for those fed the control diet or diets containing 2.0% or 4.0% SO. The BW gain and feed intake were greater (p<0.05) for hens fed diets containing additional AF or SO than those fed the control diet. Eggshell thickness was the greatest (p<0.05) for hens fed the control diet, but the least (p<0.05) for hens fed diets containing 4.0% SO. Egg yolk color was the greatest (p<0.05) for hens fed the control diet, but the least (p<0.05) for hens fed diets containing 4.0% SO. Conclusion: Inclusion of supplemental fat (AF and SO) in diets exhibits preventative effects on BW loss for hens raised under hot environmental conditions when energy and nutrient concentrations in diets were maintained. The effects were greater for AF than for SO. However, inclusion of supplemental fat in diets decreases eggshell thickness and egg yolk yellowness, possibly due to a reduction in Ca absorption and intake of egg yolk colorants.

• 대한지역사회영양학회지
• /
• 제17권5호
• /
• pp.543-554
• /
• 2012

This study was performed to investigate the satisfaction of body image, dietary habits, nutrition intake and dietary quality according to body image of university students (n = 290). The subjects (male = 178, female = 112) were classified to lean, normal and overweight/fat groups according to body image. The weight, body fat and body mass index (BMI) was significantly higher in the students who recognized their body image as 'overweight/fat'. The satisfaction of body image, interest of weight control and experience of weight control were significantly higher in students who recognized their body image as 'normal' in both the male and female subjects. The intakes of nutrients, dietary habits and life styles were not different according to body image. In the male subjects, the niacin intake density, the nutrient adequacy ratio (NAR) of vitamin B1 and the dietary diversity score (DDS) in the students who recognized their body image as 'overweight/fat' were significantly lower than in students who recognized their body image as 'normal' and 'lean'. In female subjects, no significant differences in nutrient intakes, NAR, MAR and DDS were observed according to body image. Future studies with a larger sample size are needed for further assessment of the relationship between nutritional status/diet quality and body image in university students.

• 대한영양사협회학술지
• /
• 제13권4호
• /
• pp.311-330
• /
• 2007

The purpose of this study was to analyze the quality of meal and dietary habits of college students according to where they reside. This survey included 260 students and was conducted through questionnaires. The subjects were divided into three groups: first group was composed of students who reside in boarding-houses(BH group, N=72), second was students who reside in self-boarding set up(SB group, N=90), and third was those who lived in the same house with their parents(HWP group, N=98). The average age of the students in the BH, SB, and HWP group were 19.7 yrs, 21.1 yrs, and 21.7 yrs, respectively. There were no significant differences in the weight, height and BMI among the three groups. The BH group had significantly higher frequency of skipping breakfast and smoking than those of the SB and HWP groups. The amount of energy, food, carbohydrates, proteins, fats, vitamins and minerals consumed in the BH group were significantly higher than in the SB and HWP groups. Similarly, the NAR(nutrient adequacy ratio), MAR (mean adequacy ratio), ND(nutrient density) and INQ(index of nutritional quality) of the BH group were significantly higher than those in the SB and HWP groups. There was no significant difference in the KDDS(Korean's Diet Diversity Score) between the three groups. From the data obtained, the SB and HWP students appeared to have more dietary problems than the BH students. These results show that nutrition education for SB and HWP students is needed in order for them to learn proper dietary management and help improve the diet of students living in self-boarding arrangements.

• 동아시아식생활학회지
• /
• 제27권5호
• /
• pp.500-511
• /
• 2017

This study was conducted to investigate the anthropometric data, bone density, serum profiles, nutrient intakes and diet quality of premenopausal and postmenopausal women. For the study, we obtained data for analysis from the combined 2008~2011 Korean National Health and Nutrition Examination Survey (KNHANES). The height and weight were 157.8 cm and 58.7 kg in premenopausal women and 155.5 cm and 58.3 kg in postmenopausal women, respectively. The obesity rate was 27.49% in premenopausal women and 34.98% in postmenopausal women (p<0.001). Total cholesterol, LDL-cholesterol, triglyceride, GOT, GPT and alkaline phosphatase in postmenopausal women were significantly higher than those in premenopausal women (p<0.001). The prevalence of osteoporosis was 0.0~0.89% in premenopausal women and 0.48~13.22% in postmenopausal women (p<0.001). In postmenopausal women, rates of hypertension, stroke, myocardial infarction, depression, and diabetes were significantly higher than those in premenopausal women. Water, fat. ash, sodium, retinol, thiamin, riboflavin and niacin intakes in premenopausal women were significantly higher than those in postmenopausal women. Water, fiber, Ca, and, K intakes were below KDRIs (Dietary Reference Intakes for Koreans) in both groups. The mean adequacy ratio (MAR) of premenopausal women was higher than that of postmenopausal women (p<0.001). The index of nutritional quality (INQ) in premenopausal women was also higher than that of postmenopausal women except iron and vitamin C. Therefore dietary guidelines and an education program should be developed for desirable improvement of health, bone density, nutrient status and dietary quality of postmenopausal women.

• 대한영양사협회학술지
• /
• 제23권3호
• /
• pp.223-239
• /
• 2017

This study was conducted to investigate the anthropometric data, serum profiles, nutrient intakes and diet quality of men in their 30s. The subjects were divided into a married group and an unmarried group. For the study, we obtained data for analysis from the combined 2008~2015 Korean National Health and Nutrition Examination Survey (KNHANES). Mean height and weight of study population were 173.5 cm, and 74.0 kg in the married group and 173.1 cm, and 73.6 kg in the unmarried group, respectively. Systolic blood pressure in the unmarried group was significantly higher than that of the married group (P<0.001), while circulating vitamin D levels in the married group were significantly higher than those of the unmarried group (P<0.001). The proportion of obesity in the two groups was 42.41% and 38.40%, respectively. In the unmarried group, prevalence of depression was significantly higher than that those of the married group. Intakes of energy, water, protein, fat, carbohydrate and calcium in the married group were significantly higher than those of the unmarried group. In both groups, water and fiber intakes were low and sodium intakes were extremely high based on the KDRIs (Dietary Reference Intakes for Koreans). The mean adequacy ratio (MAR) of the married group was higher than that of the unmarried group. The index of nutritional quality (INQ) in the married group was also higher than that of the unmarried group. Therefore, we propose development of dietary guidelines and education programs for improvement of food and nutrient intakes, nutrition balance and dietary quality of unmarried men in their 30s.