죽염의 첨가 급여가 육계의 증체량, 도체성분 및 혈액성분에 미치는 영향

고용균(Yong Gyun Goh),장동균(Dong-Gyun Jang),공유진(You-Jin Kong),김혜진(Hye-Jin Kim),장애라(Aera Jang) 한국가금학회 2017 韓國家禽學會誌 Vol.44 No.3

죽염은 우리나라에서 전래되어온 전통적 민간 의방의 하나로서 소화기 장애의 치료제로 사용되었다. 또한 염증, 당뇨, 순환기 질환, 바이러스성 질환 및 암 등 여러 가지 병의 치료에 효과적이라고 알려져 있다. 죽염은 여러 가지 광물질을 함유하고 있어 가축의 사육과정에서 생산성 향상에 영향을 미칠 것으로 사료된다. 따라서 본 시험은 3회 구운 생활죽염을 사료에 첨가 급여할 때 육계의 생산성에 미치는 영향을 규명하기 위하여 기초사료에 죽염을 0.1%, 0.2% 및 0.3% 수준으로 첨가 급여하여 육계의 증체량, 사료섭취량, 사료요구율, 도체성분 및 혈액 성분에 미치는 영향을 분석하고자 사양시험을 실시하였으며, 본 시험에서 얻어진 결과를 요약하면 다음과 같다. 육성전기에 생활죽염 첨가에 의한 증체량의 차이가 나타났으며 0.3% 첨가구인 T3구가 대조구에 비하여 9.6% 향상된 증체성적을 보였다. 사료요구율은 대조구에 비하여 죽염 0.3% 첨가구인 T3 처리구가 유의적으로 낮게 나타나, 약 2.6% 향상된 결과를 보였다(p<0.05). 또한 음수량과 분변 중 수분함량은 0.3% 죽염을 첨가 급여할 경우, 대조구에 비해 유의적(p<0.05)으로 증가하였으나, 닭가슴살의 일반성분, 복부지방함량 비율 및 혈액 성분은 죽염 첨가에 의한 유의적인 차이를 보이지 않았다. This study investigated the effect of bamboo salt (BS) on body gain, feed intake, meat composition, and blood characteristics of broiler chicks. BS was processed by roasting salt at 1,200∼1,300℃ in a bamboo container, with the open end plugged with red clay. In total, 120 broiler chicks were assigned to four treatments. Each treatment was triplicated, with 10 chicks in each treatment group. The supplementation levels of the three BS-treated feeds were 0.1, 0.2, and 0.3%. Body weight gain slightly increased in broiler chicks fed diets supplemented with BS compared to that of the control during the overall test period. However, no significant differences were observed among treatments. Feed intake was also not significantly different among treatments. Feed efficiency was significantly (p<0.05) improved in broiler chicks fed diets supplemented with BS compared to that of the control. Body weight gain was more positively affected by the dietary BS supplement at the beginning of the experimental period than toward the end. Water intake was positively correlated with the dietary 0.3% BS level (p<0.05). Breast meat composition and cholesterol levels were also not affected by BS supplementation. The total protein, albumin, glutamic oxaloacetic transaminase (GOT), glutamic-pyruvic transaminase (GPT), and total cholesterol levels in the blood were not significantly different among treatments.

환경온도와 우모피복도가 닭의 에너지대사에 미치는 영향 2 . 사료급여시의 에너지 대사

고용균(Yong Gyun Goh),고종태(Jong Tae Goh),이영철(Yong Chull Rhee) 한국축산학회 1987 한국축산학회지 Vol.29 No.10

Effect of environmental temperature and defeathering (DF) on the energy metabolism of cockerels was examined and results obtained are as following. 1. Environmental temperature (ET) affected heat production (HP) during feeding condition. Under 25℃ ET, HP per ㎏ metabolic body weight (MEW) were decreased with increasing ET, which is showing 146.4, 131.5, 115.9 and 88.8 Kcal under S, 15, 25 and 35℃ ET, respectively. 2. Mean HP per ㎏ MEW were respectively 120.6, 131.2 and 188.0 Kcal for 0, 50 and 100% DF treatment which is revealing the increasing HP with increasing DF level. 3. Metabolizable energy requirement for maintenance (MEm), which were 143.3, 120.6, 111.0 and 86.7 Kcal/MBW with respective ET of 5, 15, 25 and 35℃, were decreased with increasing ET. There were increased in MEm with increasing DF level under 25oC. There were 115.4, 126.6 and 192.1 Kcal for cockerels with DF level of 0, 50 and 100, respectively. However, no such difference was observed under 35℃ ET. 4. No effect of ET on Net availability of metabolizable energy (NAME) was observed. However, in average, the marginal decrease of NAME which were 66.6, 64.5 and 57.6% was shown with increasing level of DF, which respectively were 0, 50 and 100%. Effect of DF level was not observed exceptic ally under 35℃ ET.

환경온도와 우모피복도가 닭의 에너지대사에 미치는 영향 1 . 절식시 열발생량

고용균(Yong Gyun Goh),이영철(Yong Chull Rhee) 한국축산학회 1987 한국축산학회지 Vol.29 No.9

Effect of environmental temperature and defeathering (DF) on the fasting heat production (FHP) in white Hisex cockerels was examined at 5, 15, 25 and 35℃ of temperature and 0, 50 and 100% defeathering conditions. Series of experiment were carried out with three open-circuit respiration chamber. The results can be summarized as follows: 1. FHP had negative correlation with the environmental temperature (ET), therefore, FHP of cockerels decreased continually with increasing ET. The relationships between FHP (Y) and ET (X) expressed as a linear regression equation were: Control treatment (0% DF); Y=-1,167X + 100.41 (r=0.9779), 50% DF treatment; Y=-1.429X + 109.90 (r=0.9968), 100% DF treatment; Y=-2.887X + 165.31 (r=9717). 2. FHP of the cockerels was also increased (p$lt;.01) with increasing DF level, which were 105.5%increase in 50% DF treatment and 139.5% increase in 100% DF treatment compared to control treatment (0% DF treatment). The tendency of increasing FHP due to DF level (50 and 100% DF) was remarkable especially in low temperature treatment (15 and 25℃). However, there was no effect of the DF level of cookerels when ET increased with 35℃, which of FHP ranged 58.3-60.6 Kca1/BW^(0.75)/day.

선형계획법에 의한 부로일러의 경제적 영양소 요구량에 관한 연구

이영철,하서현,고용균 ( Yong Chull Rhee,Seo Hyun Ha,Yong Gyun Goh ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5

Two experiments were conducted to investigate the effect of feeding different levels of metabolizable energy and protein diets on growth performances, body composition and gross income of broiler chicks. The results obtained were as follows ; 1. Metabolizable energy level of diet was significantly influenced on body weight and feed efficiency. As the Metabolizable energy level of diet decreased the body weight and feed efficiency decreased proportionately. 2. Male chicks have a higher progressing tendency on body weight and feed efficiency than female chicks. Also, the body weight and feed efficiency were greatly influenced especially by the nutrient level of starter diet. (0-3 weeks) 3. When chicks were fed diet containing high energy value the body fat and abdominal fat pad size of chicks increased. 4. The highest. gross income was marked in the metabolizable energy 3200㎉ treatment of male chicks and in the 3000 ㎉ treatment of female chicks, but the high energy level of diet was not always greater in gross income than low energy level of diet.

저질산야초의 (低質山野草) 사료가치 증진시험 Ⅱ. 암모니아처리 산야초가 산양의 성장율과 경제성에 미치는 영향

홍병주(Byung Ju Hong),고용균(Yong Gyun Goh),이영철(Yong Chull Rhee) 한국축산학회 1984 한국축산학회지 Vol.26 No.3

A performance and digestibility trials were conducted to evaluate the feeding value of ammoniated (3% dry basis), urea treated (2% dry basis) and untreated wild grass by goats. The results obtained were summarized as follows: 1. Total digestible nutrients value of wild grass which were treated by NH₃, urea and untreated were 56.8% 46.5% and 47.1% respectively (P$lt;0.01). 2. NHS treated wild grass (3% dry basis) had a higher dry matter digestibility (55.6%) and higher NDF digestibility (62.4%) than all the other treatments. 3. Daily body gain and dry matter intake of goats fed NH₃ treated grass were greater than either fed untreated and urea-treated grass. That is, daily body gain and dry matter (DM) intake were 112g and 0.71㎏, those of urea-treated were 88g and 0.52㎏, and those of untreated were 82g and 0.47㎏, respectively. 4. Cost of the grass used in this trial based on the manufacturing price: Untreated grass - 85￦ per ㎏; Ureatreated grass - 91￦ per ㎏; NH₃ treated grass - 103￦ per ㎏. However, when the NH₃ treated grass was fed by the goats, the feed cost per kilogram gain was the cheapest of all the other treatments.

저질산야초의 (低質山野草) 사료가치 증진시험 Ⅰ. 재료의 수분함량과 암모니아 첨가수준이 일반성분 및 건물소화율에 미치는 영향

홍병주(Byung Ju Hong),고용균(Yong Gyun Goh),이영철(Yong Chull Rhee) 한국축산학회 1984 한국축산학회지 Vol.26 No.3

This study was conducted to evaluate the nutritive value of wild grass treated with ammonia and to determine the effects of ammonia application rate, grass moisture content, treatment duration and ammoniation source on the chemical composition and fiber digestibility. The results obtained were summarized as follows: 1. The concentration of total nitrogen of wild grass treated with ammonia was increased with increasing the NH₃ application rate and moisture content of wild grass (P$lt;0.01). But, the nitrogen of urea-treated grass was not affected by the moisture content proportionately. 2. The NDF and ADF content of wild grass treated NH₃ and urea were not affected by the moisture content and application rate 3. Although the urea-treated grass was not higher in the in vitro dry matter digestibility (IVDMD) than untreated. But, the ammoniation grass significantly improved the IVDMD at the level of 3.0% especially. Also, significant increases were obtained at the level of 5,7% (P $lt; 0.01). 4. In vitro dry matter digestibility (IVDMD) was greatly affected by the treatment duration. More than 3 weeks in treatment duration showed significantly (P$lt;0.01) higher in vitro dry matter digestibility (IVDMD) compared to one week duration. And no significant difference among more than 3 weeks duration were observed. 5. The 30% moisture content in NH₃ grass showed highest IVDMD.

꿀벌에 있어서 중국산화분, 국산대용화분 및 유당의 함량이 기호성과 수명에 미치는 영향

백두현(Doo Hyoun Baek),고용균(Yong Gyun Goh) 한국양봉학회 1999 韓國養蜂學會誌 Vol.14 No.1

국내 유통 닭고기의 미생물 수준과 위생관리기준 적합성

김혜진(Hye-Jin Kim),김동욱(Dongwook Kim),송성옥(Sung Ok Song),고용균(Yong-Gyun Goh),장애라(Aera Jang) 한국가금학회 2016 韓國家禽學會誌 Vol.43 No.4

본 연구는 식품의약품안전처로부터 지난 5년간 가금육(닭고기, 오리고기) 중 일반세균수 모니터링 검사 결과를 받아 분석하고, 현재 서울/경기, 충청도 및 강원도 지역 내 유통단계(식육포장처리장, 식육판매장)의 닭고기를 대상으로 미생물학적 오염도를 조사하였다. 또한, 닭가슴살의 저장기간의 따른 이화학적, 미생물학적, 관능적 특성의 변화를 분석을 통하여 적정 미생물 권장 기준에 대한 과학적인 근거를 제시하고자 하였다. 현재 국외에서는 유통단계 식육의 일반세균수에 대하여 1×10<SUP>5</SUP>∼10<SUP>6</SUP> CFU/g 또는 CFU/cm² 이하로 권장 또는 규제하고 있다. 반면에, 우리나라의 권장기준치는 1×10<SUP>7</SUP> CFU/g 이하로 국외와 비교하였을 때 완화된 권장기준치를 가지고 있다. 실제 지난 5년간 시행된 전국의 유통단계 가금육(닭고기, 오리고기) 중 일반세균수 모니터링하여 분석해본 결과, 대부분 1×10<SUP>6</SUP> CFU/g 이하에 속하며, 권장기준 초과 건수가 1% 이내로 위생관리가 잘 이루어지고 있었다. 이를 바탕으로 현재 서울/경기, 강원도 및 충청도 지역의 유통단계 닭고기의 현장 모니터링을 실시하여 18개의 식육판매점에서 채취된 54개의 시료 중 2건을 제외하고, 모두 국내 일반세균수 권장기준치인 1×10<SUP>7</SUP> CFU/g과 대장균수 권장기준치인 1×10<SUP>4</SUP> CFU/g을 초과하지 않았다. 적정 미생물 권장기준에 과학적 근거 제시를 위하여 유통기간 중에 발생할 수 있는 품질적 변화를 예측하고자 닭가슴살을 저밀도 랩으로 포장하여 4℃에서 저장하며, 저장기간별 이화학적, 미생물학적 및 관능학적 변화를 분석하였다. 그 결과, 현재 국내 유통단계 닭고기 중 일반세균수 권장기준치인 1×10<SUP>7</SUP> CFU/g에 근접하였을 때 pH는 5.96으로 pH 6에 가까웠고, 종합적 기호도가 5.11점으로 5점에 가까웠으며 특히 냄새가 5점 이하를 보여 이취로 인한 선호도의 저하를 나타냈다. 따라서 국내 유통 단계 식육에 대한 일반세균수 권장기준치가 국외에 비해 다소 완화된 기준이며, 심지어 권장기준치(1×10<SUP>7</SUP> CFU/g 이하) 이하에서도 관능패널들이 낮은 선호도를 보였던 점을 고려할 때, 안전성뿐만 아니라 소비자의 기호도를 동시에 만족시킬 수 있도록 유통단계 닭고기 중 일반세균수 권장기준을 1×10<SUP>6</SUP> CFU/g 수준까지 낮추어 보다 현실적이고 적정한 권장기준에 대한 검토가 필요할 것으로 판단된다. This study was conducted to investigate the microbiological sanitation status of raw chicken meat distributed in Korea, and potential changes in chicken breast quality during storage. The microbiological sanitation status analysis of raw chicken involved studying the results of microbiological monitoring for a 5-year period (2010∼2014) by the Korean Food and Drug Administration. Furthermore, the microbiological status of raw chicken meat in meat packing centers and shops in Seoul/Gyeonggi, Kangwon, and Chungcheong Provinces was investigated from July to August 2015. The total bacterial counts of chicken meat in the packaging centers and meat shop of these Provinces were below the level specified in the Korean Meat Microbiological Guideline (1×10<SUP>7</SUP> colony forming units [CFU]/g) and showed a similar microbiological sanitation status with results of the microbiological monitoring for the analyzed 5-year period. To evaluate the relationship between quality change and microbiological level of the meat distributed in Korea, the pH and microbiological and sensory quality characteristics of the chicken breast samples during storage at 4±2℃were determined. On day 4, the total bacterial count of the chicken breast was 6.76 log CFU/g, which was close to the official 1×10<SUP>7</SUP> CFU/g standard, the pH was 5.96, and the overall acceptability was reduced significantly (p<0.05). In particular, the aroma score was <5, indicating that the consumer panel expressed a negative perception even though the chicken contained a lower microbial level than that specified in the Korean microbiological guideline. These results suggest that the current Korean microbiological guideline for raw chicken meat may require a stricter level of up to 1×10<SUP>6</SUP> CFU/g to satisfy both meat safety standards and organoleptic quality for consumers.

畜産廢棄物의 移用에 關한 硏究

金鼎濟(Jeong-Je Kim),洪炳周(Byong-Ju Hong),高用均(Yong-Gyun Goh) 한국토양비료학회 1991 한국토양비료학회지 Vol.24 No.2