• Monthly Korean Chicken
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• v.43 no.37 s.103
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• pp.84-85
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• 2004

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.111-112
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• 2003

스테비오사이드를 추출하고 폐기되는 스테비아 부산물의 사료적 가치를 구명하기 위하여 육계사료에 수준별로 급여하여 육계의 생산성, 혈중 콜레스테롤, 장내 미생물 및 계육의 지방산에 미치는 영향을 고찰하였다 사료내 영양소 함량은 사육 전기와 후기에 각각 CP 21.5 ％, ME 3,100 kca1/kg와 CP 19 ％, ME 3,100 kcal/kg 수준으로 급여하였다. 처리구는 스테비아 부산물 0, 2, 4, 8 ％ 수준으로 하였고, 처리구당 4반복, 반복당 16수로 총 256수를 공시하였다. 본 시험의 결과, 사육 전기 3주간의 증체량은 스테비아 부산물 8 ％ 급여구가 대조구에 비하여 유의적으로 감소하였으나 후기 2주간에는 차이가 없었다. 또한 전체 사육기간의 증체량에서도 스테비아 8 ％ 급여구는 대조구와 차이가 없었다. 총 사료섭취량과 사료요구율은 스테비아 부산물 급여구와 대조구 사이에서 차이가 없는 것으로 나타났다. 스테비아 부산물의 급여가 장내 미생물의 변화에 미치는 영향은 대조구와 유의적인 차이가 없었으나 맹장의 Salmonella, E coli는 감소하고 Lactobacillus 및 Yeast는 증가하는 경향을 보였다. 혈중 총 콜레스테롤, HDL 콜레스테롤, LDL 콜레스테롤 및 중성지방에서도 대조구와 차이가 없었다. 또한 스테비아 부산물을 급여하여 생산된 가슴육의 지방산 함량에서도 차이가 없었다.

• Korean Journal of Poultry Science
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• v.32 no.1
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• pp.49-54
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• 2005

An experiment was conducted to investigate whether dietary yeast (Saccharomyces cerevisiae, SC) and its' structural components, i.e., yeast cell-extract (YE) and yeast cell-wall (CW) could influence growth performance, ileal morphology and serum lipids of male broiler chickens. There were four dietary treatments, each consisting of 6 replicates (10 birds per replicate). Chickens were fed a corn-soybean meal base control diet and diets containing SC ($0.5\%$), YE ($0.25\%$) and CW ($0.25\%$), respectively for 5-wk-experimental period. Dietary SC, YE and CW versus the control diet did not affect growth performance of male broiler chickens. Ileal morphology as to villus height, crypt depth and villus:crypt ratio of birds fed on the control diet was not significant from those fed on diets rich in SC, YE and CW, respectively. Dietary SC significantly lowered (P<0.05) serum total cholesterol by on average $19.7\%$ as compared to the control group. In addition, chickens fed on diets with either YE or CW lowered serum cholesterol by on average 15.3 and $12.5\%$, respectively as compared to the control albeit that the former only reached statistical significance. In conclusion, our study observed the hypocholesterolemic effect of SC in male broiler chickens. Moreover, YE, i.e., an extract of intracellular components of SC contains active molecules that are responsible far lowering serum cholesterol concentrations, but their identification at the molecular level needs to be assessed.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.11a
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• pp.75-76
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• 2003

This experiment was conducted to evaluate the potential for dietary garlic powder(GP) on overall growth performances and cholesterol metabolism in broiler chickens. 1-d-old male chicks were fed diets containing 0 ％(with or without antibiotics), 1 ％, 3 ％ and 5％ GP for 6wk. Body weight gains in GP 3 ％ and 5 ％ groups were significantly higher than that of control without antibiotics. The content of tissue cholesterol in GP containing diet groups tended to be reduced as compared to those of control. The expression of hepatic HMG-CoA reductase mRNA was reduced consistently by dietary GP. IB antibody titer In chicks fed GP containing diets was significantly higher than control without antibiotics.

• Korean Journal of Poultry Science
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• v.32 no.3
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• pp.171-177
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• 2005

Two experiments were carried out to investigate the effects of level and feeding period of dietary Monascus culture on the performance and cholesterol content of serum and meat in broilers and growing ducks.0.0(C), 0.5(T1), 1.0(T2) and $1.5\%(T3)$ of iwonascus culture which contained 0.5% monacolin-k was added to commercial broiler diets, respectively, and ffd during 2~6 weeks of age in Experiment 1. In Experilnent 2, commercial broiler diet added $1.0\%$ of Monascus culture was fed during $6\~6(C),\;4\~6(T1),\;2\~6(T2)\;and\;0\~6(T3)$ weeks of age, respectively. Three replicates of 16 day-old broilers and 10 day-old growing ducks each were randomly assigned to floor pen, respectively. In Experiment 1, as the level of dietary Monascus culture increased, body weight and feed intake of broilers significantly decreased (P<0.05), whereas those of growing ducks tended to increase without significant differences among treatments. Feed/gain ratio both in broilers and growing ducks showed a trend to increase. Cholesterol contents of serum both in broilers and growing ducks significantly decreased(P<0.05), and those of breast and thigh meat tended to decrease as the level of dietary Monascus culture increased. In Experiment 2, as the feeding period of dietary Monascus culture increased, body weight gain(P<0.05) and feed intake of broilers tended to decrease whereas those of growing ducks increased without significant differences anions treatments. Feed/gain ratio also increased without significant differences. Cholesterol contents of serum both in broilers and growing ducks significantly decreased(P<0.05), and those of breast and thigh meat tended to decrease as the feeding period of dietary Monascus culture increased without significant differences.

• Korean Journal of Poultry Science
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• v.33 no.2
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• pp.133-139
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• 2006

This study was conducted to investigate the effects of dietary supplementation of Biotite V on growth performance, nutrients digestibility and serum and meat cholesterol in broiler chickens. A total of four hundred and eighty Arbor Acre broilers (male, 2-d-old) were used in current feeding trial for 5 weeks. Broilers were allocated to three dietary treatments with eight replications per treatment and twenty broilers per pen according to a randomized complete block design. Dietary treatments included: 1) CON (basal diet), 2) BV200 (basal diet+200 mesh Biotite V 1.5%) and 3) BV325 (basal diet+325 mesh Biotite V 1.5%). During the first week of experiment, Biotite V increased weight gain in treatment groups compared to CON treatment (P<0.05). Through the entire experimental period, weight gain, feed intake and feed/gain had no significant differences among the treatments (P>0.05). Digestibilities of DM and N were also not affected when diets included Biotite V (P>0.05). No effects were observed in Biotite V supplemented treatments compared to CON treatment on abdominal fat weight, meat and serum cholesterol concentrations (P>0.05). In conclusion, supplementation of Biotite V in broiler diets has no influence on growth performance, nutrients digestibility and can not decrease the cholesterol concentrations in meat and serum.

• Journal of Animal Science and Technology
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• v.44 no.3
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• pp.369-376
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• 2002

Effects of dietary taurine on the abdominal fat weight and serum and liver concentrations of cholesterol were investigated with male broiler chicks. One-day old chicks were allocated to one of three taurine supplemented diets: 0 (control), 1 and 2%. Body weight gain of chicks fed the diet supplemented with 2% taurine decreased by 6% compared to the control (P$\prec$0.05). However, feed conversion ratio was not different among treatments. Liver weight and ratio of liver weight to body weight showed no difference among treatments. Abdominal fat weights were lower in 1% and 2% taurine supplementations by 14% and 20%, respectively, than that of the control (P$\prec$0.05). Serum concentrations of triglyceride, glucose, glutamic oxaloacetic transaminase and glutamic pyruvic transaminase were not different among treatments. However, serum concentrations of total cholesterol were higher in 1% and 2% taurine supplementations by 10% and 12%, respectively, than that of the control (P$\prec$0.05). Also serum concentrations of HDL-cholesterol increased in 1% and 2% taurine supplementations by 20% and 34%, respectively, compared to the control (P$\prec$0.05). Concentrations of total cholesterol in liver decreased in 1% and 2% taurine supplementation by 9% and 13%, compared to the control (P$\prec$0.05). Also concentrations of HDL-cholesterol in liver were lower in 1.0% and 2.0% taurine supplementation by 20% and 38%, respectively, than that of the control (P$\prec$0.05). These results showed that taurine supplementation decreased the fat storage in abdominal cavity and affected on the cholesterol metabolism in liver of broiler chicks.

• Korean Journal of Poultry Science
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• v.38 no.1
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• pp.51-57
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• 2011

This study was conducted to investigate the effects of supplementation diets of pine needle powder on performance, proximate composition, carcass characteristics, blood cholesterol concentration, TBARS (thiobarbituric acid reactive substance), WHC (water holding capacity), and shear force of chicken meat. Broiler chicks were fed diets for five weeks containing 0% pine needle powder (Control), 0.3% pine needle powder (T1), 0.6% pine needle powder (T2), and 0.9% pine needle powder (T3). Performance was no significant difference among treatment groups, but mortality was decreased in diets by the supplementation of pine needle powder than that of T1 and control. The moisture, crude protein, crude fat, and crude ash were no significant difference. The liver weight and abdominal fat was significantly decreased by the supplementation of pine needle powder compare to the T1 and control (P<0.05). The total cholesterol and LDL-cholesterol concentration of control was higher than treatment groups, and the HDL-cholesterol concentration and glucose of control was lower than treatment groups (P<0.05). The TBARS value was significantly decreased by the supplementation of pine needle compared to the control (P<0.05). In conclusion, these data indicate that 0.6% pine needle powder supplementation (T2) was most effective in decreasing mortality, total cholesterol and LDL-cholesterol and increasing HDL-cholesterol concentration.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2005.11a
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• pp.72-73
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• 2005

This study was carried out to investigate the effects of extracts supplements of pine nut cone on the broiler performance and the cholesterol content, the lipid oxidation of serum and meat of broilers. The control group was fed a common basal diet without antibiotics and the treatment group were fed a common basal diet with extracts of pine nut cone of 500ppm(T1), illite 1% +extracts of pine nut cone of 500ppm(T2), pine nut cone powder of 2.5%(T3) for 5 weeks. The weight gain and the feed intake were significantly higher treatment than control. The cholesterol content of serum was significantly decreased in T1, T2 group. The breast was also significantly decreased in T1, T2 group. The thigh was not different among treatment, but the cholesterol content of serum was significantly lower in T1, T2 treatment than control. TBARS of the brest and the thigh showed significantly lower than control. POV of the brest and the thigh showed different among treatment, but there were no correlations among treatment.

• Korean Journal of Poultry Science
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• v.37 no.3
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• pp.221-228
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• 2010

This study was conducted to investigate the effects of dietary supplementation of garlic by-products on performance, proximate composition, carcass characteristic, cholesterol, and blood composition of chickens. Broiler chicks were fed diets for 5 weeks with a diet 1% garlic by-product (T1), 2% garlic by-product (T2), and 5% garlic by-product (T3). There were no difference among diet in performance. In proximate composition, crude fat of chicken meat was decreased in diets by addition of garlic by-product than control, but moisture and crude ash were no significant difference. Liver weight was significantly increased (P<0.05) by the dietary supplementation with garlic by-products compared to the control diet. The total cholesterol and LDL-cholesterol of treatment groups was lower than control, and the HDL-cholesterol of treatment groups was higher than control (P<0.05). Especially, T3 was significantly (P<0.05) more effective in improving cholesterol compared to other treatment groups. In blood composition, GOT of broiler was decreased in diet by garlic by-products than control group, but GPT, triglyceride, and glucose were no significantly different. In conclusion, these data indicate that supplementation of garlic by-products (T3) were most effective in decreasing total cholesterol, LDL-cholesterol, and GOT and increasing HDL-cholesterol.