• 제목/요약/키워드: neck meat

검색결과 56건 처리시간 0.03초

아토피 피부염(皮膚炎) 환자(患者) 67명(名)에 대(對)한 임상적(臨床的) 고찰(考察) (The Clinical Study of Atopic Dermatitis)

  • 이진용;김덕곤
    • 대한한방소아과학회지
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    • 제13권2호
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    • pp.171-186
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    • 1999
  • Atopic dermatitis is a chronic or chronically relapsing, pruritic dermatitis. It commonly occurs in patients with a personal or family history of atopy. We studied 67 children suffering from atopic dermatitis Oriental Medicine Hospital in Kyunghee University, and analyzed sex, age, feeding, clinical manifestation, risk factor. The results were as follows : 1.Most age distribution of children was from 2 to 6, male to female ratio was 1:1.03 2.Breast-feeding to milk-feeding ratio was 2.93:1 3.Frequency of aggravating symptom by specific food was 31.3%, among this, meat(especially chicken) was revealed high risk factor 4.Frequency of family history suffering from other allergic disease was 61.2%, among this father to mother ratio was 1.27:1 5.Sites of atopic dermatitis were as follows : The inner space of elbow and knee joint was 77.65, back, face, neck was 56.7%, back of ear was 52.2%, wrist was 46.3%, abdomen was 38.8%, ankle was 34.3%,head was 29.9%.

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노폐계육의 생산성 및 가공특성에 관한 연구 (Studies on Meat Productivity and Functional Properties of Spent Hens)

  • 송계원
    • 한국가금학회지
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    • 제12권1호
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    • pp.31-38
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    • 1985
  • 부화후 20개월된 백색케그혼종 산란노폐계 60수를 무작위로 10수씩, 6개 군으로 나누어 도계처리하고 가식계육을 얻어, 산육성과 육제품원료육으로서의 가공적성을 측정 조사한바, 그 결과를 요약하면 다음과 같다. 1. 평균 생체중은 1,576.7g이였으며, 도체중은 998.9g(63.4%), 가식내장육량은 75.3g(4.8 g)인바, 이를 합친 판매(R.T.C)형 계육량은 1,074.2g(68.2%)으로, 불가식도계 부산물량은 502.5g (31.8%) 였다. 2. 도체 (평균중량 998.9g)의 부위별분할육량은 각각 두 41.0g(4.1%), 익 135.9g(13.6%), 흉 276.7g(27.7%), 고경 323.6g(32.4%), 배 176.1g(17.6%)였으며, 분활감량은 45.6g(4.6%)였다. 3. 뇌 및 고경부터의 가식근육량은 각각 241.1g 및 274.2.g, 도합 515.4g으로 분할육량대 85.86%, 도체량대 51.6%, 생체중대 32.7%였다. 4. 가식근육량(515.4g)과 가식내장육량(75.3g) 합친 수당가식육량은 590.7g으로 생체중대 37.5%였다. 5. 뇌근의 수분, 단백질 및 지방함량은 각각 72.95%, 20.54% 및 15.9%였고, 고경근은 각 71.9%, 19.12% 및 3.96%였으며, 또 뇌근과 고경근의 수분ㆍ단백화는 각각 3.55 및 3.76이였다. 6. 뇌근과 그경근의 염예성단백질은 각각 7.97% 및 6.26%였고, 이의 전단백질에 대한 농도(%)는 각각 38.8% 및 32.4%였으며, 또 이들의 유화력(oil $m\ell$/100$m\ell$) 은 각각 4.37$m\ell$ 및 43.23$m\ell$로 단백질의 량과 질적으로 고경근보다 뇌근이 우수하였다. 7. 뇌근과 고 근의 보수력은 각각 54.23% 및 52.61%로 적시 뇌근이 높은편이었다.

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Meat Production Characteristics of Black Bengal Goat

  • Chowdhury, S.A.;Faruque, S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제17권6호
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    • pp.848-856
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    • 2004
  • Black Bengal goat is primarily reared for meat, skin comes here as a by-product. The present trial describes the effect of age on different carcass characteristics of Black Bengal goats of either sex. A total of 61 Black Bengal goats of different age and sex groups were slaughtered. They were reared under semi-intensive management on milk alone or with concentrates (of 10.14 MJ ME and 10.48 g M/kg DM) and freshly cut Napier grass (2 MJ ME and 25 g CP/kg of fresh matter) that provides the estimated NRC (1981) requirement. The four age groups were: pre-weaned kids (0-90 day), post-weaned kids (91-180 days), growing (181-365 days) and adult (>365 days). Goats were slaughtered according to 'Halal' method by severing the major vessels of the throat by a transverse cut. Different slaughter parameters of Black Bengal goat can be best predicted from the equations as follows: live weight (kg)=0.801 (shoulder height (cm))-24.32, ($r^{2}$=0.94); carcass weight (kg)=0.364 (height at hind legs (cm))-11.54, ($r^{2}$=0.91); edible weight (kg)=0.623 (shoulder height (cm))-19.94, ($r^{2}$=0.91) and saleable weight (kg)=0.701 (shoulder height (cm))-21.99, ($r^{2}$=0.92). Live weight, carcass weight, edible weight and saleable weight of castrated goat at one-year onward ranges from 20-22, 9.4-10.5, 14-16 and 16.6-18.8 kg, respectively, which are about 80% higher than most of the reported observations on Black Bengal goat of same age and sex. Slaughter weight, warm carcass weight, edible weight and saleable weight increased curvilinearly with age of slaughter but not affected (p>0.05) by sex. However, linearity of the response curve of affect of age on mentioned parameters ends at around 9 months. Visceral fat as per cent of live weight increased curvilinearly with age and attain its maximum (about 6%) at about 500 days. However, linear part of the quadratic model ends at about 300 days when visceral fat content is about 4.8% of body weight. Blood and skin yield for one-year old male goat was 797 g and 1.61 kg, respectively. Absolute yield of blood and skin increased curvilinealry and attained maximum level at about 400 days (13.3 months). Average proportion of different carcass cut were - round 27%, rump 7%, loin 10%, ribs (6-12th) 14%, shoulder 21%, Neck 7%, chest 14%. Thigh and shoulder constituted about 48.3% of the cold carcass weight. Overall crude protein content of meat samples of different carcass cuts progressively decreased with age starting from 57 at 0-90 days to 58, 47 and 33 per cent, respectively at 91-180, 181-365 and >365 days, respectively. Overall meat fat content increased almost linearly from 11.1% during 91-180 days to 22.9 and 39.5% during 181-365 and >365days, respectively. Results from this trial suggest that both carcass yield and carcass composition changes with age; and sex have little or no effect on carcass yield and carcass composition. However, caution should be made in using second conclusion as there were few female animals slaughtered relative to the male. Optimum slaughter age for Black Bengal goat reared under semi-intensive management with adequate feeding and management would be about 9 months when their live weight, warm carcass weight, edible and saleable weight of carcass can be about 16.74, 7.28, 12.05 and 13.81 kg, respectively.

폐경 후 골감소증 여성에 대한 12주간의 영양교육과 운동 중재 전.후 식품 및 영양소 섭취량 변화와 골밀도 지표 변화와의 관계 (The Association between Changes in Food and Nutrient Intakes and Changes in Bone Metabolic Indicators in Postmenopausal Women with Osteopenia after a 12-week Intervention of Nutrition Education and Aerobic Exercise)

  • 김서진;강서정;박윤정;황지윤
    • 대한지역사회영양학회지
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    • 제18권3호
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    • pp.213-222
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    • 2013
  • Few studies investigated the effects of nutrition education and exercises in women with osteopenia. This study examined the relationship between changes in dietary intakes and changes in indicators related to bone health in postmenopausal women with osteopenia (-2.5 ${\leq}$ T-score ${\leq}$ 1) after a 12-week intervention. Thirty-one postmenopausal women aged > 50 years residing in Seoul were recruited and participated in nutritional education regarding bone health and general nutrition practices and aerobic exercises (three times a week; 60 min per session). Twenty-five subjects completed the study and were eligible for the analysis. Bone mineral density (BMD) at femoral neck was measured by dual energy x-ray absorptiometry. Serum calcium, osteocalcin, and intact parathyroid hormone (PTH) were also measured. Dietary intake was estimated by using a one-day 24 recall by a clinical dietitian. After 12 weeks, meat consumption increased (P = 0.028) but vegetable intake decreased (P = 0.005). Intakes of animal protein (P = 0.024), vitamin B1 (P = 0.012) and vitamin $B_2$ (P = 0.047) increased, and sodium intake decreased (P = 0.033). Intact PTH (P = 0.002) decreased and osteocalcin (P = 0.000) increased, however, BMD decreased (P = 0.000). Changes in mushroom consumption were positively correlated with femoral neck BMD (r = 0.673, P = 0.003). Changes in animal iron intake were negatively correlated with intact PTH (r = -0.488, P = 0.013) but were positively correlated with osteocalcin (r = 0.541, P = 0.005). These results suggested that the association between animal iron intake and biochemical markers of bone turnover may play an important role in bone metabolism. Further studies are needed to shed light on complicated mechanisms of diet, hormonal levels of bone metabolism, and bone density.

한국여성의 골밀도와 운동과의 관계 (The Relationship of Exercise to Bone Mineral Density of Korean Women in Taegu)

  • 이희자
    • Journal of Nutrition and Health
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    • 제29권7호
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    • pp.806-820
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    • 1996
  • The relationship between exercise and hone mineral density (BMD) was investigated in 153 healthy women. The BMD of lumbar spine, femur(neck, ward's triangle, trochanter) and total body was determined by dual energy X-ray absorptiometry in a group subjects(65) aged 19-59 years who had been exercising(swimming or aerobic dancing) regularly for at least 2 years as well as in a similar group of nonexercising control subjects(88). Weight, height, total lean body mass(=weight-total fat body mass-bone mineral content), animal and meat Ca, Ca index, energy expenditure, BMD, PYD/Cr were significantly higher in the exercisers than the controls. There were significantly negative correlations between age, ALP and osteocalcin and BMD, but significantly positive correlations between weight, BMI, total fat body mass and total lean body mass and BMD. Stepwise multiple regression analysis revealed that total lean body mass may be a better independent predictor to BMD than total fat body mass. The nutrient intakes were more closely related to BMD in the exercisers than the controls, but energy expenditure was more closely related to BMD in the controls than the exercisers Stepwise multiple regression analysis revealed that BMD was closely related to menopause, osteocalcin, age, weight in both groups but energy intake in the exercisers alone, energy expenditure in control alone. In premenopausal women, the exercisers had significantly greater BMD than the controls. But, in postmenopausal women, no significant difference between two groups was detected. When compared to BMD of the subjects with same age range to minimize the effect of age, aerobic dancing appears to be capable of exerting a positive effect on BMD in a group of subjects aged 19-44. However, no relationship of the swimming to BMD could be identified in a group of subjects aged 37-59. The results of this study suggest that the usefulness of exercisng appears to be significantly greater in preemenopausal women than postmenoparusal women and weight bearing activity, aerobic dancing is associated with increasing BMD at the weight bearing sites and could be beneficial in the prevention of bone loss. But the usefulness of swimming on bone should be further investgated.

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항암 화학요법을 받는 환자의 식욕부진 정도와 식이양상에 관한 연구 (A Study on the Anorexia and Diet Patterns in Cancer Chemotherapy Patients)

  • 최은숙;김금순
    • 기본간호학회지
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    • 제2권1호
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    • pp.19-35
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    • 1995
  • This study was designed to identify the severity of anorexia and the diet patterns in receiving chemotherapy. The identification of anorexia would provide useful and basic information to oncology nursing care. The subjects of this study were 102 hospitalized chemotherapy patients in a September 10, 1994. The subjects were 20 years old or above and who agreed to participate in this study and could understand the questionnaire. Three-days diet history were collected and analysed. The study subjects change, food aversions, the severity of anorexia. Data related to demographic and other mecdical characteristics such as age, diagnosis, and medication were collected by review of patient medical record. The results of this study were summarized as follows : 1) The score of anorexia was 73.7 in Anorexia Visual Analogue Scales and mean amount of fool intake per a day was 823cc. The larger the anorexia VAS score, the more severe of anorexia. 2) The food preferences of subjects were identified. Those were aversions, or dislikes the meat such as beef, pork, and chicken, and greesy or fried foods. The Caffeinated drinks such as coffee and tea were disgusted, also. The patients preferred vegetables and Korean traditional food especially kimchee and soy bean soap. 3) Those who were administered analgesics and cisplatin suffered more severe in anorexia than those who analgesics and cisplatin was not administarted. The patients with gastrointestinal cancer has more severe anorexia than those who have the other site cancer ; head and neck, genirourinary etc. The result of this study in turn provide valuable nursing practice guidelines for nutritional counseling in cancer chemotherapy patient. Nurses working with chemotherapy ward should identify the severity of anorexia and diet patterns. In conclusion, the severity of anorexia in cancer chemotherapy patients is very important problems. Health care personnels recognize the potential problems of anorexia and encourage the nutritional counseling in cancer chemotherapy patients.

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육용계에 있어서 계통간 산육능력 및 체중증가에 따른 각 부위별 증가양상 추정에 관한 연구 (Studies on the Estimation of Growth Pattern Cut-up Parts in Four Broiler Strain in Growing Body Weight)

  • 양봉국;조병욱
    • 한국가금학회지
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    • 제17권3호
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    • pp.141-156
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    • 1990
  • 본 연구는 육용계육종개량에 필요한 기초자료를 얻기 위하여 육용계 4계통(H, T, M, A)을 306수 공시하여 성장률 및 체중증가에 따른 체중구성요소들과 산육률의 상대비율(%)을 Trial 1 (생체중:900~l,000g), Trial 2 (생체중 : 1,300~l,500g), Trial 3 (성체중 1,600~1,800g), 그리고 Trial 4 (생체중 :1.8kg 이상) 순서로 추정하였다. 공시된 Broiler는 1987년 7월 2일부터 동년 9월 13일까지 서울대학교 농과대학 가축육종 농장에서 사육되었고, 도체시험을 가하였다. 조사사항 및 방법은 전기한 바와 같다. 본 연구에서 얻어진 결과를 요약하면 다음과 같다. 1. 4계통(H, T, M, A) 각각에서 7주령 체중과 0~7까지의 사료효율 및 생존율을 살펴보면 H계통은 $2.150\pm$34.9, 2.55 및 99.7%였으며, T계통은 $2.138\pm$26.2, 2.125 및 99.7%, M계통은 $1.960\pm$23.1과 2.084 및 100.0%였고 A계통은 $2.319\pm$27.9와 2.030 및 100.0%였다. 4계통 모두 정상발육을 하였다. 2. 0~7주령까지 2주간격으로 조사한 성장률에 대한 성적을 살펴보면 2주령을 제외한 전주령에서 계통간에 뚜렷한 유의차를 보였다. 성장속도를 표시해 주는 회귀계수값 기울기 b값을 보면, bA=1.015, bH=0.968, bM=0.950, bT=0.942순으로, A계통의 경우 bA=1.015로서 유의적으로 제일 빠른 속도로 성장하고 있음을 나타내고 있다. 3. 체중구성요소들 체중증가에 따라 각부위들의 체중비율이 증가되는 부위는 다음과 같다. 우모, 복부지방 및 흉부 그러고 퇴경부 등이고, 반면에 감소되고 있는 부위는 방혈중, 두부, 가식내장 및 불가식내장이었고, 체중증가에도 큰 변화가 없는 것을 익부 및 배부이었다. 각 부위별 계통간 유의차를 보이는 것은 우모의 경우 Trial 4에서 계통간 유의차를 보였고, 각부의 경우는 Trial 3에서 계통간 유의차를 보였으며 복부지방량의 경우 Trial 1에 유의차를 보인 뒤 나머지 단계에서는 유의차를 보이지 않았다. 가식부위들 중 계통간간 유의차가 있는 것은 경부에서(Trial 2) 나타났다. 정육이 가장 많이 퇴경부와 흉부의 중량비율(%)을 살펴보면 Trial 4에서 흉부중양비율(%)은 H, T, M, A계통에서 19.2, 19.0, 19.0, 19.0%였고 퇴경부 경우는 23.0%, 23.3, 22.8 그러고 23.0%로 흉부중량비율(%)보다 퇴경부중양비율(%)이 훨씬 높게 나타났다. 체중증가에 따른 증가속도는 흉부가 머 빠른 속도로증가했다. 4. 흉부와 퇴경부의 산육률을 보면 폐부의 산육률에 있어서 계통간 유의차는 Trial 2와 Trial 4에서 산육률의 계통간 유의차를 보였다. 증가속도가 제일 빠른 T계통은 흉폐부근육위주로 개량되었다고 판단된다. Trial 4에서 각 계통간(H, T, M, A)에서 각부의 산육률을 보면 각각 77.2%, 78.9%, 73.5%, 74.8%를 나타냈으며, 퇴경부의 경우 계통간유의차를 나타내지 않았으나 H계통의 경우는 성장속도가 제일 빠르게 나타났다. 반면, 흉부에서 제일 성장속도가 빨랐던 T계통은 퇴경부 산흉율은 bT=0.775로 오히려 감소속도를 나타내고 있다. 한편 퇴경부 산육율을 H, T, M, A계통별로 살펴보면 80.3%, 78.4%. 79.7% 그리고 80.2%였다. 5. 체중구성요소들의 중상비율간의 상관근도는 계통간를 차이를 보이지 않았다. 체중구성요소중 체중과 상관정도가 높은 부위들은 방혈양, 두부, 각부, 흉부, 퇴경부등이였다. 복부지방(%)은 어느 계종에서나 주로 불가식내장과 높은 유의상관을 보였으나, 가식부위와의 상관정도는 매우 낮게 나타났다.

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다양한 사육 밀도에서 대형 육계 암컷의 생산성과 도체 수율 (Growth Performance and Carcass Yield of Heavy Female Broiler at Different Stocking Densities)

  • 나재천;추효준;김동운;황보종;김지혁;강환구;김민지;최희철;홍의철
    • 한국가금학회지
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    • 제40권1호
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    • pp.41-47
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    • 2013
  • 본 시험은 세 가지 다른 사육 밀도가 대형 육계 암컷의 생산성과 도체 수율에 미치는 영향을 조사하기 위해 수행하였다. 처리구는 사육 밀도에 따라 T1(10.9 수/$m^2$), T2(12.4 수/$m^2$) 및 T3(13.9 수/$m^2$)로 하였다. 공시계는 1일령 Arbor Acre종 육계 암컷 492수를 선별하여 처리구당 4반복씩, 반복당 각각 36, 41 및 46수씩 나누어 완전임의 배치하였으며, 육계 초기(0~1주), 전기(1~3주) 및 후기(3~6주)로 나누어 총 6주 동안 사양시험을 실시하였다. 조사 항목으로 생존율, 체중, 증체량, 사료 섭취량, 사료 요구율, 생산지수, 도체 수율 그리고 부분육 비율(날개, 다리, 가슴, 등, 목)을 조사하였다. 6주 동안의 육성률은 세 처리구 모두 90% 이상으로 높게 나타났으며, 처리구 간 차이가 없었다. 육계의 체중은 3주령, 증체량, 사료 섭취량 및 사료 요구율은 2~3주령에 T3 처리구에서 가장 낮았으며(P<0.05), T1과 T2 처리구 사이에 서는 유의차가 없었다(P>0.05). T1, T2 및 T3 처리구의 생산지수는 각각 331.0, 340.8, 336.0으로 처리구 사이에 유의적인 차이는 발견되지 않았다. 4주령 육계의 도체 수율과 대부분의 부분육(날개, 가슴, 등, 목) 비율은 처리구 간 차이가 없었으나, 다리 부위의 비율은 T2에서 가장 높았다(P<0.05). 5주령 육계의 도체 수율은 T1처리구에서 76.2%로 가장 높았으나(P<0.05), 부분육 비율은 처리구 간 유의차가 없었다. 6주령 육계의 도체 수율과 부분육 비율은 처리구 간 차이가 없었다. 본 시험은 대형 육계 암컷을 위한 다양한 사육 밀도를 기초자료로 제공하였으며, 추가적인 연구가 필요하다고 사료된다.

비타민 C와 비타민나무 부산물 첨가가 산란 성계의 생산성 및 계육 품질에 미치는 영향 (Effects of Dietary Supplementation of Vitamin C and Sea Buckthorn on the Performance and Meat Quality in Old Laying Hens)

  • 강환구;김지혁;황보종;김찬호
    • 한국가금학회지
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    • 제42권2호
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    • pp.181-189
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    • 2015
  • 본 연구는 100주령 이상의 산란성계 사료 내 비타민 C 및 비타민나무 부산물의 첨가 급여가 생산성, 도체수율, 혈액성상 및 계육품질에 미치는 영향을 조사하고자 실시되었다. 공시 동물은 100주령 Hy-Line Brown 200수를 선별하여 A형 2단 케이지에 대조구 포함 총 5처리구로 구성하여 처리당 4반복, 반복당 10수씩(2수 수용 케이지 10개) 난괴법으로 임의 배치하였다. 비타민나무 부산물은 강원도 양구 소재 비타민나무 재배지에서 생산, 건조된 비타민나무 잎과 가지를 이용하였으며, 시험에 이용된 사료는 한국가금사양표준(2012) 요구량에 준하여 배합하였다. 처리구로는 비타민 C와 비타민나무 부산물을 첨가하지 않은 대조구(Basal)와 Vit. C 0.1% 첨가구, 비타민나무 부산물 0.1% 첨가구, 비타민나무 부산물 0.5% 첨가구 그리고 비타민나무 부산물 1.0% 첨가구로 나누어 4주간 실시하였으며, 물과 사료는 자유 섭취하게 하였고, 일반적인 점등관리(자연일조 + 조명; 16 hr)를 실시하였다. 산란율 및 도체율은 전 시험기간 유의적인 차이는 나타나지 않았다. 부분육 비율은 가슴육을 제외한 다른 부위에서 대조구와 비교 시 차이가 없었으나, 가슴육 비율은 비타민나무 부산물 0.5% 첨가구에서 유의적으로 증가하였다(P<0.05). 하지만 산란성계육의 일반성분, 보수력, 가열감량 및 지방산 함량에 있어서는 비타민 C 및 비타민나무 첨가에 따른 유의적인 차이는 나타나지 않았다. 결과적으로 산란 성계 사료 내 비타민나무 부산물의 첨가는 생산성 및 계육품질에는 영향을 미치지 않았으나, 부분육 중 가슴육 생산량을 증가시키는 것으로 나타났으며, 이는 산란성계육 수출 시 부위별 무게로 가격이 결정됨을 감안할 때 경제적인 면에서 긍정적인 영향을 미칠 수 있을 것으로 사료된다. 하지만 산란성계육 수출량이 증가함에도 불구하고, 품질 개선을 위한 연구가 미흡한 점을 감안할 때 향후 더 많은 연구가 필요할 것으로 사료된다.

The Effect of High Environmental Temperature and Nutrient Density on Pig Performance, Conformation and Carcass Characteristics under Restricted Feeding System

  • Hsia, L.C.;Lu, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제17권2호
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    • pp.250-258
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    • 2004
  • An experiment was conducted to examine the effect of a high environmental temperature on the performance, conformation, and carcass characteristics of pigs and the influence of diet. Thirty-six three-way crossed castrated male pigs with average initial body weight of 50.4 kg were used in the experiment. The pig were allocated to the following treatments: two environmental temperatures (20 and $30^{\circ}C$)${\times}$three dietary energy levels (2,980, 3,300 and 3,600 kcal/kg)${\times}$three protein levels (12.8, 15.2 and 17.2%). Daily weight gain was lighter (p<0.01) and feed: gain ratio lower (p<0.05) in pigs at $30^{\circ}C$ than for pigs at $20^{\circ}C$ The pigs at $30^{\circ}C$ were significantly taller with deeper bodies (p<0.05) and significantly longer (p<0.05) both vertically horizontally in the planum nasal when kept at $30^{\circ}C$. The width of body and the circumference of the neck were greater (p<0.05) at $20^{\circ}C$. The lean meat of the loin, middle section, ham, and hind section were significantly greater (p<0.05) in pigs kept at $30^{\circ}C$ and the belly was significantly heavier. The total unsaturated free fatty acids were significantly higher (p<0.05) in the body fat of pigs kept at $20^{\circ}C$ than in that of pigs at $30^{\circ}C$. The results indicated that when pigs are given very restricted same amounts of feed, they may need less energy to maintain their body temperature under moderately high environmental temperature ($30^{\circ}C$); consequently, their performance is better than that of pigs under optimum environmental temperature. The results showed very clearly that weight gain of pigs increased with increasing of dietary protein and energy content. The increasing of dietary protein content seemed more significant when content increasing to 17.2% compared with the 12.8 and 15.2% protein content treatments. The increasing of dietary energy content was more significant when content increasing to 3,600 compared with the other low energy content treatments.