• Journal of Nutrition and Health
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• 제38권1호
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• pp.3-10
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• 2005

포도씨유의 생체 내 지질대사에 미치는 효과를 평가하고자 식이급원이 상이한 들깨유 및 옥수수유를 흰쥐에게 급여하여 체내 지질패턴 및 간조직의 지방산 조성을 분석한 결과는 다음과 같다. 일반식이군과 고지방 식이를 급여받은 쥐의 체중은 7주까지 꾸준히 증가하였다. 그러나 일반식이에 들깨유을 급여받은 쥐는 7주 후 체중이 감소하였고 다른 유지군을 급여받은 군들은 8주째부터 감소하였다. 식이섭취량 은 고지방 식이군 보다 일반식이군이 높았고 식이효율은 일반식이에 들깨유을 혼합하여 급여한 군에서 유의적으로 낮았다. 혈청 지질패턴 분석결과, 총지질 농도는 들깨유을 혼합한 일반식이군과 고지방 식이군에서 유의적으로 감소하였고 중성지방과 인지질 농도는 일반식이군에게 들깨유 급여시 유의적으로 낮았다. HDL-C은 일반식이군이 고지방 식이군보다 유의적으로 높게 나타났으나 일반식이군에 포도씨, 들깨유 및 옥수수유을 혼합하여 급여한 군간에 유의적인 차이는 없었던 반면 고지방 식이군와 들깨유을 급여한 군에서 HDL-C이 유의적으로 증가하였다. LDL-C은고지방식이군과 일반식이군간에 유의적인 차이가 나타났는데, 특히 고지방식이에 들깨유을 급여한 군에서 유의적으로 낮았고 포도씨유 급여군도 감소하는 경향이었다. HDL-ChDL-C 수치가 고지방식이 군에서 다른 식이지방에 비하여 PHF군에서 유의적으로 높았던 것은 혈중 지질패턴을유익하게 바꾸어준 결과이며, 이로 인하여 동맥경화인자인Al 지수가 CHF군에 비해 PHF군과 GSHF군에서 유의적으로 감소되었다. 간조직의 총지방, 총콜레스테를 및 중성지방 함량은 일반식이군은 들깨유군에서 가장 낮았고 그다음이 포도씨유군 및 옥수수유군 순으로 관찰되었다. 간조직의지방산 조성 분석결과 고지방식이군은 포화지방산은 감소하였고 단일불포화 지방산과 다가불포화 지방산은 일반식이군에 비해 증가하였다. 따라서 본 연구결과 유지 급원에 따라함유하는 지방산 조성의 비율도 달라져 식이 급원에 의해 생체내 지방산 조성에 큰 영향을 미치는 것으로 생각된다.

• 한국지역사회생활과학회지
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• 제27권2호
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• pp.233-243
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• 2016

This study examined the antioxidant activity and lipid composition of rats fed a high fat-high cholesterol diet containing Salvia plebeia water extract. Three levels (50 mg/kg, 200 mg/kg, 500 mg/kg) of Salvia plebeia water extract were administered to seven weeks old male Sprague Dawley rats for four weeks. The activity of glutathione peroxidase in serum was high in all groups that received the Salvia plebeia water extract (p<0.05). The glutathione reductase activity was high (p<0.05) in groups that received 50 mg/kg and 500 mg/kg of Salvia plebeia water extract. When rats received Salvia plebeia water extract, the content of MDA (malondialdehyde) in the serum and liver was low in all groups. In addition, the serum total lipid, triglyceride, total cholesterol and LDL-cholesterol contents decreased significantly (p<0.05). Total cholesterol and triglyceride levels in the liver were significantly lower in the group that received the Salvia plebeia water extract than in the control group (p<0.05). Salvia plebeia water extract improves lipid metabolism and it almost meets with the increase of antioxidant activity and peroxide formation reduction. Based on these results, supplemented of a high fat-hypercholesterol diet with Salvia plebeia can increase antioxidant activity and depress peroxide formation in serum, as well as liver cholesterol and triglycerides.

• Asian-Australasian Journal of Animal Sciences
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• 제20권12호
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• pp.1858-1864
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• 2007

Influence of varying level of sodium bicarbonate (SB) supplementation on milk yield and its composition was examined in a randomized complete block design in early lactating Nili Ravi buffaloes during summer. Four iso-nitrogenous and iso-caloric diets were formulated. The diet 0B contained 0 while LB, MB and HB diets contained 0.50, 1.0 and 1.50% SB levels, respectively. The diets were randomly allotted to twenty buffaloes, five in each group. A linear increase in nutrient and water intake was recorded with increasing SB level. Buffaloes fed MB and HB diets showed higher nitrogen balance than those fed 0B and LB diets. A significant increase in blood pH and serum bicarbonate was noticed with increasing SB level. Urine pH increased significantly with increased SB level. A linear increase in milk yield was also noticed with increasing SB level. Milk fat% increased significantly in buffaloes fed MB and HB diets compared with those fed 0B and LB diets. Buffaloes fed HB diet had higher conception rate and less services per conception than those fed 0B diet. This study indicated that a high SB diet not only increased dry matter and water intake, milk yield, milk fat% but also increased conception rate in early lactating buffaloes during summer.

• Fisheries and Aquatic Sciences
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• 제13권2호
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• pp.127-132
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• 2010

A study was conducted to investigate the effects of dietary lipid sources on the growth and fatty acid composition of juvenile sea cucumber. For 12 weeks, three replicate groups of sea cucumber (average weight 1.4 g) were fed one of three diets, containing squid liver oil (SLO), soybean oil (SO), or linseed oil (LO) as a dietary lipid source, or a control diet (CON) without added lipids. Sea cucumber survival was not significantly different among dietary treatments (P>0.05). The highest weight gain was observed in sea cucumber fed the SLO diet, whereas the weight gain of sea cucumber fed the SO diet was the lowest among dietary treatments (P<0.05). No significant differences were found in the moisture, crude protein, crude lipid, and ash contents of whole sea cucumber body among dietary treatments (P>0.05). Concentrations of 20:5n-3 and 22:6n-3 were significantly higher in sea cucumber fed the SLO diet than in those fed on the other diets. The highest 18:2n-6 and 18:3n-3 contents were observed in sea cucumber fed the SO and LO diets, respectively. The results of this study suggest that squid liver oil could be used as a good lipid source in formulated diets for juvenile sea cucumber.

• Fisheries and Aquatic Sciences
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• 제14권4호
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• pp.311-315
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• 2011

A 7-week feeding trial was conducted to investigate the effect of dietary starch level and kind on the growth and body composition of juvenile olive flounder. Triplicate groups of fish (average weight: 1.5 g) were fed iso-nitrogenous (48% crude protein) and isocaloric (4.8 kcal/g diet) diets containing 15-25% ${\alpha}$-potato starch and 15% ${\beta}$-potato starch. Survival was not affected by dietary starch level and kind. The weight gain of fish fed the diet containing 20% ${\alpha}$-potato starch was significantly higher than that of fish fed the diets containing 15% and 25% ${\alpha}$-potato starch levels. The feed efficiency and protein efficiency ratios of fish fed the diets containing 15% ${\beta}$-potato starch were significantly lower than those of the other groups (P < 0.05). The protein efficiency ratio tended to increase with increasing ${\alpha}$-potato starch. The daily feed intake of fish fed the diet containing 15% ${\beta}$-potato starch was significantly higher than that of the other groups (P < 0.05). The hepatosomatic index, condition factor, and proximate composition of the whole body were not affected by the dietary starch level and kind. These results indicate that up to 20% ${\alpha}$-potato starch could be incorporated into the juvenile flounder diet for optimum growth.

• 한국식품영양과학회지
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• 제23권1호
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• pp.38-43
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• 1994

크릴 및 카드뮴이 콜레스테롤 식이 흰주의 혈장 지질 성분에 미치는 영향을 조사하기 위하여, Spragu-Dawley계의 숫쥐를 8식이군으로 나누어 4주간 사육하였다. 혈장중 콜레스테롤, 인지질 및 중성지질 농도에서 5%이하의 크릴식이첨가군은 대조군과 유의적인 차이가 없었다. 카드뮴투여군은 대조군에 비하여 혈장중 중성지질(1.6배), 유리콜레스테롤(1.6배), 지단백(1.4배) 및 총콜레스테롤(1.3배)의 농도가 증가되었으며, HDL-콜레스테롤 농도는 약 1.6배 정도 낮았다. 카드뮴식이군에서 크릴첨가는 혈장의 총콜레스테롤, 유리 콜레스테롤, 지단백 및 중성지질의 농도를 오히려 증가시키는 결과를 초래하였다.

• Ecology and Resilient Infrastructure
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• 제5권1호
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• pp.54-58
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• 2018

Diet composition of amphibians usually reflects the distribution of potential prey within habitats, as well as their diet preference. We identified the diet items of Japanese tree frog (Hyla japonica) using a stomach flushing method in a rice paddy for the establishment of bio-monitoring systems of landscape changes. During the reproductive period, 71% of calling males had empty stomachs. All prey items in the stomachs belonged to the phylum Arthropoda, from eight orders of Insecta and one order of Arachnida. Among insect prey, the most common items in the stomachs were adults of beetles, flies and bugs, and larvae of butterflies and moths. There was a significant positive correlation between the body mass of Japanese tree frogs and the volume of prey items. Our results can provide a basic framework to guide the monitoring systems using prey identification of Japanese tree frogs.

• 한국축산식품학회지
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• 제32권5호
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• pp.604-611
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• 2012

The purpose of this study was to explore the effect of fermented persimmon diet on the meat quality of fattening pigs. Pigs (75 kg) were grouped and housed as 15 animals per pen and 3 replications per treatment. The basal diet (C) was substituted with 3% (T1), 5% (T2) and 10% (T3) of fermented diet. The 180 pigs were fed experimental diet for 42 d and 10 longissimus dorsi (LD) per treatment were collected when each swine reached 105.6 kg of body weight. The crude fat concentration of LD was lower (p<0.05) in treatments, but the pH value of T3 and the shear force values of T2 and T3 were higher (p<0.05) than those of C. The CIE $L^*$ value (lightness) was significantly (p<0.05) higher in T2 and T3 than C, but the CIE $b^*$ (yellowness) of T2 and T3 was significantly (p<0.05) lower than C. The composition of myristic acid and oleic acid was significantly (p<0.05) higher in treatments than in C, while the composition of palmitic acid and stearic acid of treatments were significantly (p<0.05) lower than C in LD. Sensory evaluation of cooked meat as scores of aroma, taste, juiciness and overall acceptability showed higher (p<0.05) in treatments than in C. In conclusion, the dietary of fermented persimmon diet decreased the crude fat concentration, improved the fatty acids composition (increased composition of unsaturated fatty acid and decreased composition of saturated fatty acid) and improved the sensory evaluation of pork meat from fattening pigs.

• Safety and Health at Work
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• 제11권3호
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• pp.367-371
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• 2020

We evaluated the eating pattern, physical activity, and daytime sleepiness level in Chilean shift workers. Fifty, middle-aged adult health workers from a public hospital in Santiago, Chile, were included: a group undergoing shift work (shift workers, including at least one "night shift" and one "long day", n = 33), and day workers under traditional schedule (from 8:00 to 17:00h, n = 17). Body composition, physical activity, and daytime sleepiness levels, and diet characteristics (diet composition, meals' timing, and diet quality) were assessed. Despite similar total energy intake, shift worker showed lower carbohydrate (% of energy) and higher protein intake (both P < 0.01), decreased diet quality, an irregular eating pattern, and delayed meal timing (all P < 0.05). Physical activity and daytime sleepiness levels did not differ between groups. Findings from this first Chilean study in healthcare shift workers support the fact that meal timing and diet quality appear as critical factors for upcoming intervention studies in this group.

• Fisheries and Aquatic Sciences
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• 제18권2호
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• pp.159-164
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• 2015

A feeding experiment was conducted to determine the effect of dietary distillers dried grain (DDG) on the growth and body composition of juvenile abalone, Haliotis discus hannai. Three diets were formulated to contain 0% (DDG0), 30% DDG (DDG1) replacing wheat flour and 30% DDG (DDG2) replacing fish meal and wheat flour. A commercial feed (CF) was also compared with experimental diets. Three replicate groups of abalone averaging $0.6{\pm}0.01g$ were fed one of the four diets for 14 weeks. The highest survival rate was observed in the abalone fed the DDG2 diet, which was higher than that of abalone fed the DDG0 diet. Weight gain, shell length, shell width and soft body weight of the abalone were not affected by dietary DDG and CF diet (P > 0.05). Proximate and amino acid composition of the soft whole body were not affected by dietary DDG and CF diet (P > 0.05). The result of this experiment suggests that DDG is a good ingredient to replace fish meal and wheat flour in the diet and could be used up to 30% in the diet without negative effects on the growth performance of juvenile abalone Haliotis discus hannai.