• 한국동물위생학회지
• /
• 제43권1호
• /
• pp.7-16
• /
• 2020

This study investigated the effects of the dietary supplementation with gaeddongssuk (Artemisia annua L.) powder on blood biochemical compositions, meat lipids and fatty acid profiles of the broiler chicks. One hundred male broiler chicks were divided randomly into five groups: group fed with basal diet (Control); group supplemented with 2.5% antibiotics in the drink water (Antibiotics), and groups supplemented gaeddongssuk powder with 5% (BG-I), 6% (BG-II), and 7% (BG-III) in the basal diets. Levels of total lipid and LDL-C in serum of broiler chicks were significantly lower in the groups supplemented with gaeddongssuk compared to the Antibiotics group. Contents of triglyceride and total cholesterol were significantly lower in the BG-III. HDL-C level was significantly higher in BG-I and BG-II compared to the Antibiotics group. Antioxidant activity of serum in the BG-II was significantly higher than Control and Antibiotics groups. Lipid peroxide contents in the BG-I and BG-II were significantly lower than to the Antibiotics group. Total lipids level of breast and legs meat was significantly lower in the groups supplemented gaeddongssuk compared to the Antibiotics group. Total cholesterol level of breast meat was significantly lower in the groups supplemented with gaeddongssuk compared to the Antibiotics group. UFA/SFA ratio of breast and legs meat from the BG-II was tend to higher compared to Control and Antibiotics groups. Taken together, these results suggest that dietary supplementation of gaeddongssuk with 6% could be applicable as the possibility to improve blood biochemical compositions and meat lipids properties in broiler chicks.

• 한국가금학회지
• /
• 제23권3호
• /
• pp.129-134
• /
• 1996

본 연구는 사료내 마늘의 첨가가 육용계의 생산성 및 3-hydroxy-3-methylglutaryl coenzyme A(HMG-CoA) 환원효소에 미치는 영향을 구명하고자 실시하였다. 3주령의 육용계(Abor Acres) 50수를 처리구당 10수씩 마늘 0%, 0.3%, 0.6%, 1.0%를 첨가한 5개의 처리구에 배치하여 사료와 물은 자유채식시켰다. 사료섭취량, 중체량, 사료효율에 있어서 마늘 첨가에 의한 영향은 없었다. HMG-CoA 환원효소의 활성 및 간장과 혈청내 지질함량은 마늘 첨가에 의해 유의하게 감소되었다. 따라서 본 연구결과 마늘이 첨가된 사료를 급여한 육계의 혈액내 콜레스테롤의 감소는 HMG-CoA 환원효소 활성의 저하에 기인되는 것으로 사료된다.

• 한국가금학회:학술대회논문집
• /
• 한국가금학회 2005년도 제22차 정기총회 및 학술발표회
• /
• pp.76-77
• /
• 2005

사멸 살모넬라와 뱅코마이신 첨가 사료가 Salmonella typhimurium을 감염시킨 육계 병아리의 생산성과 면역계 및 항산화계에 미치는 영향을 조사하였다. 살모넬라 인공 감염전(27일)에는 육계 병아리의 생산성은 사료에 따른 유의한 영향이 없었다. 항산화계에서 사멸 살모넬라와 뱅코마이신 첨가 사료가 기초사료에 비하여 적혈구 세포액내 MnSOD 활성을 낮추었다. 살모넬라 인공 감염 7일후 육계 병아리의 생산성은 사멸 살모넬라와 뱅코마이신 첨가 사료가 대조감염구에 비하여 높은 일당증체량과 사료효율을 나타냈다. 살모넬라 인공 감염 7일후 및 15일후 사멸 살모넬라와 뱅코마이신 첨가 사료가 대조감염구에 비하여 적혈구 세포내 과산화물 분해효소의 활성을 낮춘 반면, LPS 자극에 의한 PBMC 증식도와 PBMC 증식에 분비된 IL-1수준을 높였다. 본 성적은 사료중 사멸 살모넬라와 뱅코마이신 첨가가 살모넬라 감염 육계 병아리 생산성 증가에 영향을 미쳤으며, 이는 항산화 효소계와 PBMC 증식도, IL-1 분비 및 혈장 TNF-a농도 등 타고난 면역계에 의한 것으로 생각된다.

• 환경생물
• /
• 제21권2호
• /
• pp.142-148
• /
• 2003

도심 지역인 서울시청 부근과 공단지역인 안산 반월 공단지역 내에 서식하는 비둘기의 알,새끼, 성조를 대상으로 각 발달 단계에 따른 납과 카드뮴의 체내 축적 농도를 비교하고 각 지역의 오염 수준을 파악하고자 수행하였다 조사 결과, 납 및 카드뮴 농도는 뼈, 신장, 간, 허파 등 모든 조직에서 새끼보다 어미가 높았으며,특히 납은 뼈에서, 카드뮴은 신장에서 현저하게 높았다. 서울의 경우, 납 농도는 알보다 새끼의 뼈 조직에서 약 3배 높았고, 새끼보다 성조의 뼈 조직에서 약 6배가 높게 검출되었다. 카드뮴의 경우에도 알보다 새끼의 신장 조직에서 약 2배, 새끼보다 성조의 신장 조직에서 약 17배정도 높게 검출되었다. 이와 같이 납과 카드뮴 농도는 모두 알, 새끼, 성조의 발달 진행에 따라 증가하는 경향을 보였으며, 이러한 경향은 안산 공단지역보다 서울지역이 더욱 현저하였다.

• Parasites, Hosts and Diseases
• /
• 제36권4호
• /
• pp.281-284
• /
• 1998

닭와포자충에 감염된 닭에서 다른 병원체의 이차 침입에 대한 면역억제능을 입증하기 위하여 2일령 SPF 병아리에 $2{\times}10^6$의 닭와포자충 난포낭을 한 번에 경구투여한 다음 14일 후에 $1{\times}10^9$의 Brucella abortus strain 1119-3 부유액 0.3 ml를 근육주사하였다. 그 다음 3-6일 간격으로 36일간에 걸쳐 채혈한 후 평판응집반응으로 이 세균에 대한 면역반응을 관찰하였다. 전반적으로 감염군과 비감염군 모두 3일 후까지는 이 세균에 대한 혈청응집반응이 전혀 일어나지 않았으나 그 후 혈청응집역가는 비감염군에 비하여 감염군이 의의있게 낮았다 (P＜0.05). 세균 접종 15일 후 감염군과 비감염군에 있어서 최고 역가는 매우 의의있는 차이를 보였다 (P=0.0001). 한편, 진정대조군은 전 실험기간을 통하여 이 세균에 대한 혈청응집반응을 보이지 않았다. 이 연구결과 닭와포자충에 감염된 닭에서 미생물의 침입에 대한 면역반응이 억제됨을 확인하였다.

• 대한수의학회지
• /
• 제28권2호
• /
• pp.345-353
• /
• 1988

The present study was carried out to investigate the incidence of C jejuni and C coli in chicken. Also were examined the pathogenicity of the isolates in chick by experimental inoculation. Thermophilic Campylobacter were isolated from 34(45.9%) of the 74 specimens, and classified as 21.6% C jejuni, and 24.3% C coli. In the biotyping of 16 stranis of C jejuni isolates, 37.5% of the strains were grouped as biotype I, 62.5% as biotype II. In the case of 18 strains of C coli isolates, 49.9% of isolates were grouped as biotype I, 55.6% as biotype II. n oral inoculation with $10^4cfu$ of Campylobacter isolates into infant chicks(1 to 3 days-old), 17 days-old and 34 days-old chicks, 32.5% of the chicks developed diarrhea on day 1, 52.5% on day 3, 70.0% on day 5, and 27.5% on day 7, and the peak incidence of diarrhea was reached on day 5. The organisms were found to be discharged in feces one day afterwards. C jejuni and C coli strains were detected from the feces in 87.5% of the chicks on day 5. The organisms were multiplied from $10^4$ to $10^6cfu/gm$ in feces 5 to 7 days after inoculation. C jejuni and C coli recovered from 100% of the cecum, 64.3% of the duodenum, 50.0% of the spleen, 42.9% of the livers, and from 21.4% of gallbladders 7 days after inoculation.

• Asian-Australasian Journal of Animal Sciences
• /
• 제2권1호
• /
• pp.7-16
• /
• 1989

To determine the effect of sodium plus potassium to chloride ratio and lysine level on blood pH, blood acid-base parameters, lysine-arginine antagonism and growth performance, four hundred and thirty two chicks of 3 days age were used in a completely randomized $3{\times}3$ factorial experiment. Variables contained three levels of lysine (0.8, 1.2 and 1.6%) and dietary electrolyte (100, 200 and 300 mEq/kg). Birds fed 200 mEq/kg and electrolyte had the best growth rate and feed efficiency, followed by those fed 300 mEq/kg and 100 mEq/kg electrolyte. It is proposed that high levels of dietary electrolyte may improve the growth of chicks fed diets containing excess lysine by increasing lysine catabolism. High or low levels of lysine and dietary electrolyte resulted in higher mortality than those of optimum level (1.2%) of lysine and 200 mEq/kg of electrolyte balance. When the electrolyte level was increased, the pH, $pCO_2$, base excess, $HCO_3{^-}$ and total $CO_2$ of blood plasma were increased. The utilization of nutrients was changed when the electrolyte and lysine were manipulated. Plasma chloride tended to be greater in chicks receiving high chloride diet and was the highest in chicks fed the high lysine diet. Plasma sodium and potassium were unaffected by dietary lysine. Diet containing high lysine decreased the level of arginine and excess dietary electrolyte increased arginine level in plasma. It may be concluded that cation supplementation tended to alleviate the lysine-arginine antagonism but chloride exacerbated. Tibia bone length and ash contents were significantly affected by electrolyte balance and lysine level.

• Asian-Australasian Journal of Animal Sciences
• /
• 제19권2호
• /
• pp.236-244
• /
• 2006

This study was designed to determine the effects of daidzein (DE) on hepatic lipid metabolism in chicks fed with low protein (LP) diet based on casein. In experiment 1, the male chicks were fed with one of the three levels of dietary protein containing 10.95%, 21.9% and 43.8% protein content for 2 days. In experiment 2, the chicks were fed one of the three levels of protein with or without DE at 1,000 mg/kg diet for 2 days. Experiment 3 was conducted to compare DE (LP+DE) with estradiol (LP+E2) in chicks fed with LP diet for 7 days. Plasma lipid profiles, hepatic lipid profiles, activities of hepatic malic enzyme and isocitrate dehydrogenase (ICDH) were measured. Transcriptions of hepatic fatty acid synthase, apolipoprotein-B (APO-B), and fructose bisphosphatase mRNA were measured by RT-PCR. Increasing dietary protein levels markedly decreased the concentrations of plasma triglycerides, hepatic total lipids, hepatic TG, and the mRNA transcriptions while the increased dietary protein levels increased hepatic ICDH activities in experiment 1. In experiment 2, the effects of dietary protein levels on blood and hepatic lipid content were more prominent than those of the additional DE. Interestingly, plasma TG levels were affected by DE supplementation (p<0.05). In experiment 3, DE inhibited APO-B mRNA expressions and stimulated the accumulation of lipid in the liver through mechanisms different from E2. In this study, we demonstrate that DE has beneficial effects on blood lipid profiles, but that it inhibits APO-B mRNA transcription and aggravates the fatty liver induced by LP diet in chicks.

• Asian-Australasian Journal of Animal Sciences
• /
• 제17권4호
• /
• pp.511-513
• /
• 2004

Effects of the dietary supplementation of Codonopsis lanceolata root on triglyceride and cholesterol levels in the serum, liver, breast muscle and bile in male Cobb$\times$Cobb chicks were investigated. The chicks (15-42 days old) were fed diets supplemented with 0, 0.25 and 0.5% Codonopsis lanceolata root. No differences were observed in body weight, feed conversion ratio, gall bladder weight or abdominal fat deposition among the control group and the two treatment groups. Liver weights were higher in chicks fed a 0.5% Codonopsis lanceolata diet than in those fed the control diet (p<0.05). However, serum levels of both glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) were not different among the three groups. Broiler chicks fed either 0.25% or 0.5% dietary Codonopsis lanceolata root showed decreased serum levels of triglyceride, total cholesterol and low density lipoprotein cholesterol compared to the control group (p<0.05). Supplementation with either 0.25% or 0.5% dietary Codonopsis lanceolata root decreased the triglyceride and total cholesterol levels in liver and breast muscle compared to the control group (p<0.05). Biliary cholesterol increased by 15% in chicks fed 0.5% dietary Codonopsis lanceolata root, suggesting that the biliary excretion of cholesterol had been elevated by dietary Codonopsis lanceolata root (p<0.05). In conclusion, these results indicate that dietary Codonopsis lanceolata root can decrease triglyceride and cholesterol levels in the serum, liver and breast muscle of broilers.

• 한국가금학회지
• /
• 제28권1호
• /
• pp.15-25
• /
• 2001

This experiment was conducted to investigate the effect of feeding two strains of Lactobacillus and virginiamycin on performance, nutrients digestibility and intestinal microflora of broiler chicks(Abor acres$\times$Abor Acres) were randomly allocated into six treatments with four replications for five weeks. Control(no supplement), 0.05% virginiamycin(VM), Lactobacillus crispatus avibro1(LC), Lactobacillus reuteri avibro2(LR), LC+0.05% VM(LC+VM), LR+0.05% VM(LR+VM) were supplemented into basal diets, which contained ME 3,100kcal/kg and CP 22.0, 20.0% for starting and finishing period, respectively. Weight gain, feed intake and feed conversion(FC) were weekly measured. Nutrients digestibility, intestinal microflora and fecal noxious gas were examined at the end of experiment. Weight gains of chicks fed Lactobacillus or VM was significantly higher than control(P〈0.05). Feed intake increased significantly in those supplemental groups(P〈0.05). FC of chicks fed Lactobacillus or VM significantly lower than control(P〈0.05). Degestibility of crude protein, calcium, and phosphorus improved significantly in alone or combined Lactobacillus treatments(P〈0.05). Whereas DM, crude fat and ash digestibility were not statistically different. Feeding Lactobacilli tended to increase the total Lactobacillus spp. in ileum at one and three weeks of age(WOA) and showed significantly higher in cecum than control at 5 WOA. Total yeast were not shown difference at 1 and 3 WOA, but significantly increased at 5 WOA(P〈0.05). The ileal and cecal anaerobes were started to increase from the first WOA. Fecal NH$_3$gas tended to decrease in Lactobacillus treatments compared to that of other treatments.