• 제목/요약/키워드: Back muscle

검색결과 902건 처리시간 0.028초

Effects of Stocking Density or Group Size on Intake, Growth, and Meat Quality of Hanwoo Steers (Bos taurus coreanae)

  • Lee, Sang-Moo;Kim, Jae-Yeon;Kim, Eun-Joong
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권11호
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    • pp.1553-1558
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    • 2012
  • This study was conducted to investigate the effects of stocking density or group size on feed intake, daily gain, and carcass characteristics of Hanwoo (Korean indigenous breed) steers reared from 7 months to 31 months of age. Thirty Hanwoo steers were divided into four groups with three replicates each (a total of 12 pens). In each group, one (G1), two (G2), three (G3), and four steers (G4) per pen were allocated as treatments. Pen size was $32.0m^2$, and therefore Hanwoo steers in G1, G2, G3, and G4 were reared under different space allowances, i.e. 32.0, 16.0, 10.6, and $8.0m^2$/steer, respectively. Steers were reared following a conventional beef cattle management method in Korea, and were offered a fixed amount of commercial concentrate with ad libitum forages. Results were subjected to analysis of variance with stocking density as the main effect, and significance was declared at p<0.05. Although total feed intake was not significantly altered, it numerically increased in animals of low stocking density (G1) compared to those subjected to high stocking density treatment (i.e. G4). Feed conversion ratio was higher (p<0.05) in G3 compared to G1 and G2. Animals in G1 (low stocking density) grew faster (p<0.05) than those of high stocking density (G3 and G4). Back fat thickness, meat yield index, and meat yield grade were similar among all levels of stocking density. However, longissimus muscle area was larger in G1 and G2 (p<0.01) compared to G3 and G4, and animals in G3 produced smaller carcasses (p<0.05). Carcass quality traits, including marbling score, meat color, fat color, texture, maturity and meat quality grade, as determined by a group of experts, were not significantly different among the treatments. In conclusion, lower stocking density resulted in increased feed efficiency, daily gain, and carcass weight in Hanwoo steers. However it remains unclear whether such differences are the results of stocking density or group size, or a combination of both. Nonetheless, these results confirm previous studies reporting a negative effect of increased stocking density on animal productivity. Further, animal welfare under an intensive farming system in relation to economical return is discussed.

The Impact of Feeding Diets of High or Low Energy Concentration on Carcass Measurements and the Weight of Primal and Subprimal Lean Cuts

  • Schinckel, A.P.;Einstein, M.E.;Jungst, S.;Matthews, J.O.;Fields, B.;Booher, C.;Dreadin, T.;Fralick, C.;Tabor, S.;Sosnicki, A.;Wilson, E.;Boyd, R.D.
    • Asian-Australasian Journal of Animal Sciences
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    • 제25권4호
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    • pp.531-540
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    • 2012
  • Pigs from four sire lines were allocated to a series of low energy (LE, 3.15 to 3.21 Mcal ME/kg) corn-soybean meal-based diets with 16% wheat midds or high energy diets (HE, 3.41 to 3.45 Mcal ME/kg) with 4.5 to 4.95% choice white grease. All diets contained 6% DDGS. The HE and LE diets of each of the four phases were formulated to have equal lysine:Mcal ME ratios. Barrows (N = 2,178) and gilts (N = 2,274) were fed either high energy (HE) or low energy (LE) diets from 27 kg BW to target BWs of 118, 127, 131.5 and 140.6 kg. Carcass primal and subprimal cut weights were collected. The cut weights and carcass measurements were fitted to allometric functions (Y = A $CW^B$) of carcass weight. The significance of diet, sex or sire line with A and B was evaluated by linearizing the equations by log to log transformation. The effect of diet on A and B did not interact with sex or sire line. Thus, the final model was cut weight = (1+$b_D$(Diet)) A($CW^B$) where Diet = -0.5 for the LE and 0.5 for HE diets and A and B are sire line-sex specific parameters. Diet had no affect on loin, Boston butt, picnic, baby back rib, or sparerib weights (p>0.10, $b_D$ = -0.003, -0.0029, 0.0002, 0.0047, -0.0025, respectively). Diet affected ham weight (bD = -0.0046, p = 0.01), belly weight (bD = 0.0188, p = 0.001) three-muscle ham weight ($b_D$ = -0.014, p = 0.001), boneless loin weight (bD = -0.010, p = 0.001), tenderloin weight ($b_D$ = -0.023, p = 0.001), sirloin weight ($b_D$ = -0.009, p = 0.034), and fat-free lean mass ($b_D$ = -0.0145, p = 0.001). Overall, feeding the LE diets had little impact on primal cut weight except to decrease belly weight. Feeding LE diets increased the weight of lean trimmed cuts by 1 to 2 percent at the same carcass weight.

Green Light-emitting Diodes Light Stimuli during Incubation Enhances Posthatch Growth without Disrupting Normal Eye Development of Broiler Embryos and Hatchlings

  • Zhang, L.;Zhu, X.D.;Wang, X.F.;Li, J.L.;Gao, F.;Zhou, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권11호
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    • pp.1562-1568
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    • 2016
  • Monochromatic green light-emitting diodes (LED) light stimuli influences the posthatch growth performance of chicks. This study was undertaken with the following objectives: i) to examine whether the green LED light stimuli induces an overheating effect by determining weight loss rate of fertile eggs during incubation period; ii) to look for the development of eyes and other primary organs at different ages of embryos and newly hatched chicks. Arbor Acres fertile broiler eggs (n = 480) were randomly assigned to 3 incubation groups and exposed to continuous white light, green light, or a dark environment (control) from the first day to 19 d of incubation. The light sourced from LED lamps with the intensity of 30 lx at eggshell level. The results showed that either green or white light stimuli during incubation did not significantly affect the weight loss rate of fertile eggs, hatching time, hatchability, chick embryo, or body weight (BW), the weight percentage of heart, liver, and eyes, as well as obvious systematic abnormalities in eye weight, side-to-side, back-to-front, or corneal diameter from 15 d of embryogenesis to 6 d of posthatch (p>0.05). Compared with the dark condition, green light stimuli during incubation tended to increase feed intake (p = 0.080), improved the BW gain of chicks during 0 to 6 day posthatch (p<0.05), and increased the percentage of pectoral muscle to the BW on 3- and 6-day-old chicks. In addition, embryos or chicks in green light had lower weight percentage of yolk retention on 19 d of embryogenesis and 1 d of posthatch in comparison to those in dark or white group (p<0.05). These results suggest that providing 30 lx green LED light stimuli during incubation has no detrimental effect on the development of eyes, heart and liver of embryos and hatchlings, but does have potential benefits in terms of enhancement of the chick growth during the early posthatch stages. In addition, the fertile broiler eggs stimulated with 30 lx green LED light during incubation does not cause an overheating effect.

Mapping, Tissue Distribution and Polymorphism of Porcine Retinol Binding Protein Genes (RBP5 and RBP7)

  • Gong, W.H.;Tang, Z.L.;Han, J.L.;Yang, S.L.;Wang, H.;Li, Y.;Li, K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제21권11호
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    • pp.1544-1550
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    • 2008
  • The retinoids (vitamin A and its derivatives) play a critical role in vision, growth, reproduction, cell differentiation and embryonic development. Using the IMpRH panel, porcine cellular retinol binding protein genes 5 and 7 (RBP5 and RBP7) were assigned to porcine chromosomes 5 and 6, respectively. The complete coding sequences (CDS) of the RBP5 and RBP7 genes were amplified using the reverse transcriptase polymerase chain reaction (RT-PCR) method, and the deduced amino acid sequences of both genes were compared to human corresponding proteins. The mRNA distributions of the two genes in adult Wuzhishan pig tissues (lung, skeletal muscle, spleen, heart, stomach, large intestine, lymph node, small intestine, liver, brain, kidney and fat) were examined. A total of nine single nucleotide polymorphisms (SNPs) were identified in two genes. Three of these SNPs were analyzed using the polymerase chain reaction-restriction-fragment length polymorphism (PCR-RFLP) method in Laiwu, Wuzhishan, Guizhou, Bama, Tongcheng, Yorkshire and Landrace pig breeds. Association analysis of genotypes of these SNP loci with economic traits was done in our experimental populations. Significant associations of different genotypes of $RBP5-A/G^{63}$, $RBP5-A/G^{517}$ and $RPB5-T/C^{intron1-90}$ loci with traits including maximum carcass length (LM), minimum carcass length (LN), marbling score (MS), back fat thickness at shoulder (SBF), meat color score (MCS) and hematocrit (HCT) were detected. These SNPs may be useful as genetic markers in genetic improvement for porcine production.

교근 내로 전이된 신세포암의 치험례 (Intramasseteric Metastasis of Renal Cell Carcinoma: Case Report)

  • 박군찬;윤규호;박관수;정정권;배정호;박재안;민성창;신재명;백지선;김현정
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제34권1호
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    • pp.71-75
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    • 2012
  • Renal cell carcinoma (RCC) is the most frequent urological malignant tumor in adults and it occurs mostly between the fifth and the sixth decades of life. The male-female ratio is 3:1 and it is more common in smokers. It accounts for approximately 3% of adult malignancies; 90~95% of neoplasms of the kidney. The classic triad of presenting symptoms of RCC is hematuria, back pain and a mass in the flank. More than 50% of RCCs show metastasis to breast, lung and regional lymph nodes, and 15% present in the orofacialmaxillary region. This case is about a 66 year-old man who was treated for painless swelling in the left masseteric area. The mass was surgically excised and sent for biopsy. It was diagnosed as RCC and two weeks later nephronectomy of the left kidney was performed. Metastasis to other organs was detected and the patient received radiation therapy. In this case we were able to find the primary lesion by the metastatic lesion.

프로 축구팀의 시즌 전 체력검사 (Pre-seasonal Physical Examination of Professional Soccer Team)

  • 이경태;최병옥
    • 대한정형외과스포츠의학회지
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    • 제5권2호
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    • pp.129-134
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    • 2006
  • 목적: 국내 프로 축구팀에서 시즌 전 체력검사를 시행하여 포지션에 따른 자료를 분석하고 표준화하고자 했다. 대상 및 방법: 34명으로 구성된 한 개의 축구팀을 대상으로 시행하였으며 평균 나이 24.9세였다. 설문지를 통한과거 병력 조사, 이학적 검사를 통한 근 골격계 검사, 등속성 근력기기를 이용한 근력 검사, 생리적 검사, 기능적 검사를 시행하고 포지션에 따른 차이를 분석하였다. 결과: 과거력 상 슬관절 손상이 23예 중 11 예(47%)로 가장 빈번했고, 이학적 검사 결과 총 40예 중 족관절 손상이 14예 (46%)로 슬관절 손상 11예 (24%)보다 많은 손상이 있었다. 위치 별로 공격수는 장무지 굴곡 건염, 미드필드는 만성 족관절 불안정성 수비수는 아킬레스 건염이 많았고 근력 검사상 우세 $60^{\circ}$ 신전/굴곡 체중당 최대 염력비 평균이 55.1%였다. 생리학적 검사상 미드필드 체 지방율이 17.8% (표준편차 2.9)로 높게 측정되었고 기능적 검사 결과 배근력 125.5N (표준편차 28.3), 서전트 점프 59.6cm, 반응시간 208 5초, 유연성 19.2 m/s, 사이드 스텝 39.9 cm였다. 결론: 시즌 전 체력검사를 통하여 선수들의 체력을 평가하고 이를 기초로 하여 재 손상에 대한 예방적 수단을 강구 할 수 있다.

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늑골 골절 후 발생한 늑간 신경병증의 임상적 연구 (A Clinical Study of Intercostal Neuropathy after Rib Fracture)

  • 강정훈;이석기;서민범;나정엽;장재혁;김권영
    • Journal of Chest Surgery
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    • 제43권1호
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    • pp.53-57
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    • 2010
  • 배경: 이 연구는 늑골 수상 후 발생하는 늑간 신경병증에 대한 평가를 위하여 숫자통증등급, 통증 기간 및 체질량 지수에 따른 늑간 신경병증에 대한 심한 정도를 알고자 하였다. 대상 및 방법: 늑골 골절 수상 후 3개월 이상 동안 보존적인 치료에도 불구하고 심한 통증을 호소하는 환자 47명을 대상으로 근전도 검사를 시행하여 흉부의 늑간 및 척추 주위 근육에 대한 평가를 하였다. 결과: 47명 중에서 11명에 대하여 늑간 신경병증의 진단을 얻을 수 있었으며, 남자 8명과 여자 3명이었으며, 그 연령은 직업적으로 활동적인 연령대였다. 늑간 신경병증이 호발하는 부위는 7번부터 12번 부위 늑골 골절의 늑간이었다. 그 빈도는 단일 골절보다는 다발성 골절과 밀접한 상관 관계를 알 수 있었다. 그 증상으로는 흉통(90.9%), 감각이상(81.8%), 무감각(63.6%), 후부 흉통(27.2%), 그리고 근위축(18.2%) 순이었다. 근전도에 의한 숫자통증등급, 통증 기간 및 체질량 지수와 관계는 없었다. 결론: 늑골 골절수상 후 3개월 이상 지속적인 통증을 호소하는 환자에서 지속적인 늑간 신경통에 대한 진단을 위한 평가로 근전도가 도움이 될 수 있다.

배구 스파이크 서브 동작의 운동학적 비교 분석 (The Comparative Kinematic Analysis of a Volleyball Spike Serve)

  • 박종철;백진호;이진택
    • 한국운동역학회지
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    • 제19권4호
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    • pp.671-680
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    • 2009
  • 본 연구는 실제 경기에서 프로 배구선수 스파이크 서브의 성공과 실패 동작을 3차원 영상분석을 통해 비교 분석하여 과학적인 자료를 현장에 제공하고, 기술의 향상에 기여하고자 실시하였다. 스파이크서브를 수행하는 3명을 대상으로 카메라 4대를 이용하여 60 fields/s의 속도로 촬영하였다. 3차원좌표의 계산은 DLT(Direct Linear Transformation)방법을 사용하였으며, Kwon3D(v.3.1) 프로그램을 이용하여 분석하였으며, 그 결과 다음과 같은 결론을 얻었다. 총 소요시간은 구간별 차이가 나타나지 않았다. 신체중심 수직위치는 성공 시 1.87 m로 실패 시의 1.91 m 보다 낮게 나타났고, 최대 볼 높이는 성공 시 6.31m로 실패 시의 6.42m 보다 낮은 볼 위치를 나타냈다. 임팩트 시점의 손 높이는 성공과 실패 시기에서 차이가 나타나지 않았다. 점프하기 직전까지 신체중심의 전후속도를 높였다가 점프하는 시점에서 수직속도로 빠르게 이동시키는 것으로 나타났고, 임팩트 시 손 속도(17.11m/s)와 임팩트 직후 볼 속도(23.74m/s)는 성공 시기에서 빠르게 나타났다. 성공 시기에서 견관절을 신전시키면서 타점을 놀게 하고, 주관절은 적절한 각도를 유지시키면서 빠르고 정확한 임팩트를 하는 것으로 나타났다. 또한, 동체를 전후로 크게 움직이지 않고 어깨의 회전을 원활하게 하는 것이 중요한 것으로 나타났다.

실험적 자가면역성 말초신경염에서의 조직병리적 병변 및 CD5+ B-림프구의 발현 (Histopathologic Features and CD5+ B-lymphocyte Expression in the Experimental Allergic Neuritis)

  • 조중양;최원준;김성훈;성정준;김호진;박경석;최기영;김현정;이광우
    • Annals of Clinical Neurophysiology
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    • 제1권2호
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    • pp.91-98
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    • 1999
  • Background : The pathogenesis of acute inflammatory demyelinating polyradiculoneuropathy (AIDP), Guillain Barre syndrome (GBS) is not clear, but it has been known that the immune mechanisms play an important role. Authors performed this study to establish an animal model of experimental allergic neuritis (EAN) by immunizing the myelin components of peripheral nerves and to understand the electrophysiological and histopathological features as well as the ${CD_5}^+$ B-lymphocyte changes in peripheral bloods in the EAN models. Methods : Lewis rats weighing 150-200 gm were injected subcutaneously in soles two times with total myelin, P0, P1, or P2 proteins purified from the bovine cauda eguina. The EAN induction was assessed by evaluating clinical manifestations. The electrophysiological and histopathological features were studied as routine methods. The ${CD_5}^+$ Blymphocytes were double stained using monoclonal FITC conjugated anti-rat CD45RA and R-PE conjugated anti-rat ${CD_5}^+$ antibodies and calculated using a fluorescence activated cell sorter (FACS). Results : The EAN animal models were established. In two out of five, in one out of two, in none out of three, and in none out of one Lewis rats injected with purified total myelin, P0, P1, P2 proteins respectively, They showed slow spontaneous motor activity and weak resistance against pulling back by tails. The typical electrophysiological and histologic findings in total protein and P0 induced EAN animal models were the decreased conduction velocity, the decreased compound muscle action potential (CMAP) amplitude and the dispersion phenomenon. The perivascular infiltrates of lymphocytes with focal demyelinating process were found in light microscopy. The ${CD_5}^+$ B-lymphocyte expression in three EANs were 2.38%, 3.50% 2.50%, which were not significantly increased, compared with those in normal controls. Conclusion : The EAN animal models were successfully established by injecting the total myelin and P0 myelin and they showed electrophysiological and histological features typical of demyelinating process. However they did not show an increased expression of ${CD_5}^+$ B-lymphocyte in peripheral bloods which could be indirect evidence of humoral autoimmunity.

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오장변증중(五臟辨證中) 간실증(肝實證)의 오사(五邪)에 의한 연구 (A Study on The Excessive Liver-Symptoms(肝實證) in The Analysis of Five Visceral Symptoms By The Five Pathogenic Factors(五邪))

  • 김재홍;김태희
    • 대한한방내과학회지
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    • 제15권1호
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    • pp.176-209
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    • 1994
  • 1. The Jung-Sa(正邪) of the Excessive Liver-Symptoms belongs to the eleven symptoms, there are blue face, blue thin fingernail, anger, fancy of larg body, dizziness, eye flame, Bell's palsy, hard swelling pain at braest, side pain going on the belly from the side, side pain and movement at the left side. 2. The Mi-Sa(微邪) of the Excessive Liver-Symptoms belongs to the four symptoms, there are meat in eye, edema in cheek, lack of appetite and diarrhea. 3. The Juk-Sa(賊邪) of the Excessive Liver-Symptoms belongs to the only one symptom, this is nosebleeding. 4. The Hu-Sa(虛邪) of the Excessive Liver-Symptoms belongs to the three symptoms, there are scrotum constraction, strain in belly and constipation. 5. The Sil-Sa(實邪) of the Excessive Liver-Symptoms belongs to the twenty eight symptoms, there are red eye, raised eyes(兩眼上?), spitting blood, sternocostal turgid pain, turgidity in belly, drooping testis, vomiting water acid, sickening, belching, confusion, impatience, frequent forgetfulness, headache, giddness, eye pain, deaf, ringing in the ear, feeling inverse, drying mouth, stuffiness sensation in the chest, chest pain, stuffiness sensation in the belly, bellyache, quadriplegia, spasm of extremities, tremor, alternate spells of fever and chills, high fever and strain in muscle. 6. Those symptoms, Red corner of the eye, red face, swelling on the forehead, stiff-neck and back strong, opisthotonos, constracture of the limbs, vomiting yellow bitter water, speech impediment, epilepsy, depression, strong tongue, different thing in throat, fullness and distention of the gastric region, feeling sick and tenesmus, have no connected with the Excessive Liver-Symptoms(肝實證) 7. The Excessive Liver-Symptoms(肝實證) is connected with the ganjabyoung(肝自病) and Hwa(火) which the pathology is, than because Mock(木) is excessive and Mock-Saeng-Hwa(木生火), the ganjabyoung(肝自病) and Sil-Sa(實邪) are many. 8. There are the sixteen symptoms with the exception of The Excessive Liver-Symptoms(肝實證), because supposed that the scholars in medicine included the union syndroms(合病), the combine syndroms(兼病) and the analysis of symptoms(辨證) in The Analysis of Five Visceral Symptoms. 9. During consideration of the symptoms at the above statements, where are many causes by Gan-Pung(肝風), there is difficult of distinction between the excessive Liver-Symptoms(肝實證) and C.V.A(Cerebral Vascular Attack). Because than NaeKyung(內經) distinguished between the excessive Liver-Symptoms(肝實證) and C.V.A., the future medical specialists connected with the excessive Liver-Symptoms(肝實證) and C.V.A.. 10. An appearance of Sang-Hwa(相火) that the liver possessed is divided into an appearance of Hwa(火), there will be making a study att the more necessary. 11. The cuases of each syndroms are consist of the origins of syndroms, its pathology and the positions where the syndroms appeared, I consider that is the various ways how judge the syndroms except the Five Pathogenic Factors(五邪). 12. If more than study will be achieved in all, the new definition will be standed about the Excessive and Deficient Five Visceral Syndroms(五臟虛實證), I consider this will be the foundation data that study the Oriental Medicine and the important data that is a judgement standard of clininc.

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