• 한국동물위생학회지
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• 제23권2호
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• pp.153-163
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• 2000

This study was carried out the antimicrobial resistance of staphylococcus aureus isolated from bovine mastitic milk, chickens, korean native cattle, korean native goats, pigs, dog and mice in northern area of kyongbuk. The result were summarised as follows ; A total of 149 S aureus were isolated from bovine mastitic milk, chickens, korean native cattle, korean native goats, pigs, dog and mice. In 80 isolates of S aureus from bovine mastitic milk, 60% of isolates revealed resistance to penicillin and ampicillin, 19% to gentamicin, 6% to tetracycline. In 36 isolates of S aureus from chickens, 72% of isolates revealed resistance to tetracycline, 58% to penicillin and ampicillin, 42% to streptomycin, 31% to lincomycin, 25% to norfloxacin, 22% to gentamicin. In 17 isolates of S aureus from korean native cattle, 100% of isolates revealed resistance to penicillin and ampicillin, 88% to lincomycin, 76% to tetracycline. 2 MRSA were isolated from the isolates of S aureus from bovine mastitic milk and revealed multi-drug resistance.

• 한국축산식품학회지
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• 제38권5호
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• pp.1092-1100
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• 2018

The aim of this study was to determine meat quality characteristics and fatty acid composition of Korean native black goats (KNBG) finished on intensive feeding of alfalfa (ALF) and conventional feeding of commercial concentrate pellets (CCP) with low-energy common grasses. Ten KNBG (12 months old) were divided into two groups and subjected to either ALF or CCP treatments. The goats were slaughtered after 6 months of feeding with experimental diets to investigate meat quality characteristics and fatty acid compositions of longissimus lumborum muscle. There were no significant differences in proximate chemical composition, collagen, or myoglobin content between ALF and CCP groups of goats. Meat color, water-holding capacity, or tenderness was not significantly different between the two groups either. However, proportions of monounsaturated fatty acids and polyunsaturated fatty acids were significantly (p<0.05) different between the two groups. The proportion of oleic acid was significantly (p<0.05) higher in ALF goat whereas proportion of linoleic and arachidonic acids were significantly (p<0.05) higher in CCP goat. Results suggest that KNBG finished with intensive feeding of alfalfa could produce goat meat with desirable fatty acids for human diets.

• 한국식품저장유통학회지
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• 제30권1호
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• pp.15-27
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• 2023

Jeju Sasa borealis (S. borealis) is indigenous to the Halla Mountain area of Jeju Island, Republic of Korea. However, its dominance has retarded the development of other plant species and lowered biodiversity in this region. The aim of this study was to determine whether S. borealis silage (SS) supplementation affects the chemical composition and antioxidant activity in the fresh meat of Korean native goats (Capra hircus coreanae). The experiment was conducted on 12 Korean native goats at the finisher stage. The feeding groups were the Control (total mixed ration, TMR) and the Treatment (80% TMR + 20% SS). The animals were adapted for two weeks and then subjected to a six-month breeding experiment. Meat samples were excised from the neck, loin, rib, front leg, and hind leg of the slaughtered animals. The meat derived from the treatment group contained more taurine and anserine than that derived from the control group. Both groups did not significantly differ in terms of ω-6/ω-3 fatty acid ratio. The loin and front leg of the treatment group contained significantly higher vitamin E levels than those of the control group. DPPH, ABTS, and FRAP analyses disclosed that the loin and front leg had significantly higher antioxidant activity (p<0.05) than the other parts. Moreover, the loin and front leg cuts of the treatment group had higher antioxidant activity than those of the control group. The present study demonstrated that S. borealis supplementation could effectively improve Korean native goat meat quality.

• 한국가축번식학회지
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• 제23권1호
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• pp.13-18
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• 1999

정소내 성숙한 정자를 생산하는 전능성을 가진 정조세포는 체세포와 동일수준으로 외래 유전자를 삽입 가능한 것으로 알려져 있다. 그러나, 이들 세포가 반수체 이후의 단계로 분화한 경우에는 왜래 유전자를 삽입하기보다는 단순히 결합하는 능력이 있는 것으로 알려져 있다 . 따라서, 본 연구는 외래 유전자를 정소실질내 주입함으로써 형질전환 동물생산이 가능한지에 대하여 검토하기 위하여, 한쪽 정소를 거세한 한국 재래산 양을 사용하였다. Liposome /DNA 복합체를 1 : 2의 비율로 희석한 후 정소실실내에 주입하여 정자를 경유한 유전자 전이의 가능성을 확인하였다. 또한 동결보존한 정액을 인공수정하기 위하여 PGF$_2$$\alpha$(0.15mg/kg/BW)를 근육 주사함으로써 인위적으로 발정을 유도한 후, 인공수정을 이용하여 임신과 분만을 유도하였다. 이들 결과를 요약하면 다음과 같다. 1. PCR에 의하여, 유전자 도입 후 채취한 정액에서 외래유전자는 80일 이상 존재하였으며, 가장 높은 전이율은 40 일째 얻어졌다. 이들 결과는 정조세포에 외래 유전자가 성공적으로 삽입되었음을 제안하였다. 2. 23 두 (평균 96 % 의 발정 유기율)의 재래산양에게 인공수정을 실시한 결과 이들 중 4두가 임신되어 7두의 자양이 생산되었다. 3. 생산된 7두의 산자중 genome DNA를 추출하여 PCR 및 Southern blotting을 실시 한 결과 2두가 형질전환으로 확인되었다. 이상의 결과로서 정자를 매개로 한 정소실질내 외래 유전자의 주입법은 형질전환의 생산을 위한 매우 유용한 수단으로 사용 가능함을 제안하였다.

• 한국초지조사료학회지
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• 제38권3호
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• pp.150-155
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• 2018

This study was conducted to determine grazing intensity of growing Korean native goats(Capra hircus coreanae) on mountainous pasture. It was carried out to obtain basic information for improvement of mountainous pasture management and establishing feeding system of Korean native goat. A total of 20 goats were grouped by feeding systems [A mountainous pasture grazing group (Concentrated feed of 1.5% body weight, treatment 1, T1, n=10) and a barn feeding group (TMR, treatment 2, T2), n=10] to conduct study from April to September. The average forage productivity of the mountain pasture was $500.9{\pm}61.41kg/ha$. The average dry matter intake in T1 was 0.64 and the calculated grazing intensity was 21 head/ha. In productivity, when the two treatments(T1, T2) were compared, the dry matter intake was about two to three times the difference. The average daily gain per day during the experiment was 63.3 in the mountain pasture and 120 g in barn feeding. When grazing, considering mountainous pasture productivity it is necessary to increase the productivity through proper feeding. The feed costs of black goats raised by grazing on the grassland in the same period showed an average 75% reduction compared to barn feeding. As a result of this study, it can be expected that a considerable reduction of feed costs can be expected in the breeding of Korean native black goat using the mountain pasture.

• Journal of Animal Science and Technology
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• 제61권6호
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• pp.352-358
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• 2019

The supplementation effects of sea tangle powders were determined for the meat quality in Korean native black goats. A total 90 castrated male black goats at 3-month age were divided into 3 dietary treatment groups: control (basal diet + mineral block), T1 (0.3% sea tangle feeding with the basal diet), T2 (0.9% sea tangle feeding with the basal diet). At 9-months feeding, 10 goats per treatment group were slaughtered, and the longissimus dorsi muscle samples were vacuum-packed, and subsequently analyzed for physicochemical evaluations. Analysis revealed decrease in the shear force and TBARS values of meat in the sea tangle dietary groups (p < 0.05). The T2 group exhibited increased levels of unsaturated fatty acids such as C16:1, C18:1, C18:2, and C20:4 (p < 0.05). The content of free amino acids with desirable taste such as aspartic acid, glutamic acid, glycine, histidine, and serine were higher in T2, whereas alanine content was higher in both sea tangle dietary groups, as compared to control (p < 0.05). These data indicate that feeding dietary sea tangle as an alternative mineral source results in an improvement in the physicochemical profiles of goat meat.

• 한국초지조사료학회지
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• 제27권1호
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• pp.57-66
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• 2007

본 연구는 산림부산물과 국내 유기농부산물의 사료가치와 유기흑염소 생산에 기초적인 자료를 얻고자 산지 초지유형에 따른 흑염소의 사료 섭취량, 소화율 및 질소 축적율에 미치는 영향을 조사하였다. 공시축은 한국재래흑염소이었으며, 사양 시험에서는 흑염소 40두를 4처리구(개량목초구, 유기목초구, 산야초구, 수엽류구)로 나누어 처리구당 10두씩, 소화율 시험에서는 처리구당 3두씩 완전임의 배치하여 시험을 실시하였다. 그 결과는 다음과 같다. 사양시험기간 동안의 총증체량과 일당증체량은 개량목초구, 유기목초구, 산야초구, 수엽류구 순으로 낮아졌다(p<0.05). 건물섭취량, 가소화 건물섭취량, 건물소화율 및 질소축적율은 개량목초구가 가장 높았다(p<0.05). 이상의 결과를 종합해 보면, 산림 부산물을 조사료원으로 이용하고 국내 유기농부산물을 보충사료로 급여하여 방목사육된 유기흑염소는 다소 생산성이 낮으나 안정성이 높기 때문에 육용보다는 약용형태의 소비가 바람직하다고 사료되며, 낮은 생산성을 높이기 위해선 보충사료에 추가적인 영양소 공급이 반드시 필요하다고 판단된다.

• 대한수의학회지
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• 제16권2호
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• pp.187-190
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• 1976

In order to approximate plasma volume, extracellular fluid volume and total body water volume of Korean native goats, measurements were made of the volumes of distribution of Evans blue, potasium thiocyanate and antipyrine. The results obtained in this work were summarized as follows: 1. Plasma volume showed a range of 50 to 72ml/kg with a mean of $62{\pm}6.2ml/kg$ (SD). 2. Blood volume showed a range of 69 to 98ml/kg with a mean of $85{\pm}7.9ml/kg$. 3. Extracellular fluid volume showed a range of 265 to 310ml/kg with a mean of $297{\pm}18.3ml/kg$. 4. Interstitial fluid volume showed a range of 204 to 261ml/kg with a mean of $236{\pm}16.8ml/kg$. 5. Intracellular fluid volume showed a range of 380 to 436ml/kg with a mean of $420{\pm}12.6ml/kg$. 6. The volume of total body water showed a range of 680 to 735ml/kg with a mean of $714{\pm}17.7ml/kg$.

• 대한수의학회지
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• 제7권2호
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• pp.31-34
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• 1967

An experiment was performed in order to investigate the effects of daily oral administration of propylthiouracil per kg body weight on the metabolic rate and the thyroidal activity in ten, Korean native goats by using the Benedict-Roth Metabolism apparatus and the radioactive iodine-131 in the average environmental temperature at $5.7^{\circ}C$. The results obtained were as follows: 1) The mean metabolic rates of the treated group and the control group were $34.5Kcal./m^2/hr.$ and $33.8Kcal./m^2/hr.$ 2) The peak of thyroidal uptake $I^{131}$ rate in the treated group was 20.12% in 48 hrs., following administration of $I^{131}$ and it was 22.62% in the control group in 96 hrs., Highly significant difference was observed(P<0.01).

• 한국초지조사료학회지
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• 제22권2호
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• pp.115-122
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• 2002

본 시험은 알팔파 건초의 혼합비율을 60%(A), 50%(B), 40%(C) 및 30%(D)의 4가지로 달리하여 조제한 시험사료를 이유 후 한국 재래산양에게 급여하여 사료 섭취량과 소화율 및 증체에 미치는 영향을 조사하여 이유 후 초기 사료 개발을 위한 기초자료로서 활용하고자 본시험을 실시하였으며, 그 결과를 요약하면 다음과 같다. 시험사료의 화학적 조성분은 조단백질 함량을 모두 18%로 고정시켜 동일하였으며 ADF, NDF 및 조회분의 함량은 A구가 각각 26.1, 37.0 및 9.0%로 가장 높았고 D구가 20.3, 30.4, 6.6%로 가장 낮았으나 비구조적 탄수화물(NSC) 함량은 반대의 경향을 나타내었다. 1일 두당 건물 섭취량은 A와 B구가 각각 414.4와 417.7g으로 가장 높았고 D구가 362.6g으로 유의하게 낮았다(p<0.05). 대사체중 당 건물섭취량(DM g/kg of $BW^{0.75}$)은 A구가 73.9g으로 가장 높았고, D구가 64.0g으로 가장 낮았다. 일당 증체량과 사료 효율은 각각 33.3~48.7g과 8.1~13.4%의 범위로 처리간 유의차는 인정되지 않았지만 조사료 혼합비율이 낮을수록 높았다. 재래산양에 의한 건물, 유기물, 조단백질, ADF, NDF, 조회분 및 NSC의 소화율은 농후사료 함량이 높은 처리구일수록 높고 조사료 함량이 높은 처리구일수록 낮은 경향을 보였다. 재래산양에 있어 서의 질소축적량과 질소축적율은 A구가 각각 1.8g과 15.5%로 가장 낮았고 D구가 각각 2.7g과 25.7%로 가장 낮았다. 이상의 결과를 종합하여 볼 때 어린 재래산 양의 초기사료로서 알팔파 건초를 조사료원으로 할 때 30~40%의 알팔파 건초의 혼합비율이 그 이상의 경우보다 산양의 일당 증체량 및 사료효율이 우수하였으며 이 때 사료내 조단백질 함량을 18%로 유지하는 것이 이유 후 어린 재래산양의 성장에 효과적이었다.