사료향미소의 첨가가 송아지의 사료섭취량 및 증체율에 미치는 영향

맹원재,신형태,김창원 ( Won Jai Maeng,Hyung Tai Shin,Chang Won Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.7

Feed flavor was added to whole milk and to calf starter to determine the effect of feed flavor on the starter consumption and growth of calves. Twenty four calves aged 4 days old were arranged randomized completely to 4 treatments and 6 calves per treatment. Calves received whole milk from birth to weaning at 46 days. Starter was offered ad libitum from day 12 to 46. Feed flavor was added to whole milk ar 120㎎/㎏ and starter at 0.1% Cowmilk Feednectar, 0.05% Sugarmate Feednectar and 0.05% Cowmilk Feednectar + 0.05% Sugamate Feednectar, and the results were summarized as follow: 1. Average birth weight of 24 calves was 42.77㎏ and the growth rate from birth to 46 days old was 0.353㎏ in average. 2. Average daily starter consumption from day 12 to 46 after birth was 310g in control group, 320g in Cowmilk Feednectar, 306g in Sugarmate Feednectar and 319g in Cowmilk Feednectar + Sugarmate Feednectar, respectively. 3. Average dally growth rate of calves from 12 to 46 days old was 417g in control group, 4918 in Cowmilk Feednectar, 4348 in Sugarmate Feednectar and 4378 in Cowmillc Feednectar + Sugamate Feednectar, respectively. Calves received feed flavor in starter gained more weight than those not fed feed flavor. 4. Addition of feed flavor in whole milk encouraged slightly to eat more starter which also contained same feed flavor.

단위가축영양 : 사료내 조단백질 수준이 진도성견의 질소균형에 미치는 영향

강태일 ( Tae Il Kang ),맹원재 ( Won Jai Maeng ),김명화 ( Myeong Hwa Kim ),이상락 ( Sang Rak Lee ) 한국동물자원과학회 ( 구 한국축산학회 ) 2009 한국축산학회지 Vol.51 No.2

체중 부하 운동이 흰쥐의 골대사에 미치는 영향

홍희옥(Hong Heeok),맹원재(Maeng Won Jai) 韓國營養學會 2006 Journal of Nutrition and Health Vol.39 No.2

서울지역 여고생들의 식이 철분밀도에 따른 영양섭취상태 및 철분 급원식품에 관한 연구

김천수(Kim Chun-Soo),홍희옥(Hong Heeok),이정숙(Lee Jung Sug),김정윤(Kim Jung Yoon),맹원재(Maeng Won Jai) 韓國營養學會 2007 Journal of Nutrition and Health Vol.40 No.4

This study was conducted to examine nutrient intake status and iron food sources by dietary iron density of high school girls in Seoul. The subjects of 226 girls were divided into High group (≥ 6 ㎎/1,000 ㎉, N = 115) and Low group (< 6 ㎎/1,000 ㎉, N = 111) by dietary iron density. The nutrient intake data obtained by 24-hour recall method were analyzed by Can pro 3,0 software. Mean age of all subjects was 16.4 years old, heights and weights of High group and Low group were 164.5 ㎝, 53.4 ㎏ and 161.7 ㎝, 51.7 ㎏, respectively. The body mass index (BMI) of High group and Low group was 20.5 ㎏/㎡ and 19.8 ㎏/㎡, respectively. Most nutrient intakes except energy and lipid intakes of High group were higher than those of Low group. High group showed significantly higher intakes of total iron, vegetable iron and animal iron than Low group. Ca and folate intakes of High group were under 75% of the recommended intake (RI) and Ca, iron, folate and vitamin C intakes of Low group were under 65% of RI. The percentage of subjects who consumed iron less than estimated average requirements (EAR) were 40.0% in High group and 77.5% in Low group. Total food intakes of High group showed higher than that of Low group. Total animal food intakes were significantly higher and total vegetable food intakes were significantly lower in Low group than those of High group. Iron intake from meats, fishes, shell fishes and seasonings were significantly higher in High group than Low group. Iron intake from milk and dairy products were significantly lower in High group than Low group. Major food sources of iron were rice, bean curd, pork, and egg in order among both groups. (Korean J Nutr 2007; 40(4): 371~384)

섬유소 공급원이 면양의 반추위 pH, Buffering Capacity 및 소화율에 미치는 영향

서인준(In Jun Seo),김명화(Myeong Hwa Kim),김동식(Dong Sik Kim),이상락(Sang Rak Lee),맹원재(Won Jai Maeng) 한국초지조사료학회 2005 한국초지조사료학회지 Vol.25 No.3

운동 형태가 흰쥐의 뼈형성에 미치는 영향

홍희옥(Hong Heeok),이준혜(Lee Joon-He),정동춘(Chung Dong-Choon),소재무(So Jae-Moo),나까또미료이찌(Ryoichi Nagatomi),최의창(Choi Eui-Chang),황금희(Hwang Gum-Hee),안의환(Ahn Eui-Hwan),맹원재(Maeng Won-Jai) 韓國營養學會 2001 Journal of Nutrition and Health Vol.34 No.5

생산성 향상을 위한 가축사료 및 영양 연구 분야

맹원재 건국대학교 동물자원연구센터 1990 국제 심포지움 Vol.- No.1

Studies should be focused on development and entention of feed resourse, improved digestion and absorption of feed nutrients, enhanced feed utilization and production efficiency through the bodily metabolic control of nutrients, and quality improvement of animal products high in consumer's prevention of the environment pollution caused by modern intensive livestock production system. The development and entension of feed resources may include efficient utilization of agricultural by-products, feed value enhancements, and efficient production of single cell protein such as algae, yeast and bacteria. Techniques for the improved digestion and absorption of feed nutrients may be proper processing of feed grains, development of blending technology, manipulation of rumen fermentation patterns and prevalence of a variety of additives, Modern biotechnological engineering can be applied for improved quality of feed, elimination of potentially harmful residues, improved digestion of single and non-structural carbohydrate, recombination of various digestive enzymes, and manipulation of rumen microbial species an population. Bovine somatotropin produced by modern genetic engineering makes possible the increased productivity through the metabolic control. Also, it should be stressed that animal biomass, which is a major pollutant in water quality, can be reutilized as feed, energy through biogass production, and plant nutrients. Finally, high technology of feeding is required for the development of animal products high is consumer 5 preference.

2000년대 한국인의 식품 소비구조

맹원재 한국축산학회 1986 한국축산학회지 Vol.28 No.5

At the year of 2000, average GNP per capita year will exceed 45,000 and comsumptions of rice, barley and potatoes which expect to self-sufficiency in Korea will be on the decrease, and consumptions of wheat and beans which rely upon importation will be on the increase, thus the total food self-sufficiency will turn serious in future. Average consumption of rice per capita/year was 129.8㎏ in 1984 and will decrease in 104.6㎏ which is 19.4% less in 2000, but average consumption of wheat and beans were 43.0㎏ and 24.7㎏ in 1984 and will increase 38.4% and 149.5%, respectively in 2000. A rapid increases of animal product consumption will give rise to increase importation of feed grains which are heavily dependant upon from foreign supply. Meat consumption per capita/year was 13.9㎏ in 1984 and will be 30.0㎏ in 2000 which is 2.2 times higher than that of 1984. Egg and market milk consumption were 6.7㎏ and 20.5㎏ at present and expect to increase in 11.4㎏ and 134.0㎏ respectively, in 2000. Vegetables and fruit consumption per capita/year were 102.8㎏ and 22.5㎏ in 1984 and expect to increase in 377.9㎏ and 63.4㎏, respectively in 2000. Of the proper energy supply of 2,680Kcal per capita/day, 61% will be supplied with food grains and 18.4% with animal products, and of the proper protein supply of 82g per capita/day, 48.8% will be supplied with food grains and 34.1% with animal products in 2000 year. It is strongly suggested that maximum utilization of our own domestic food resources and development of our own food consumption patterns are important.

조사료(粗飼料)의 품질에 영향하는 여러가지 인자 및 저질조사료의 영양가 개선방법

맹원재 한국영양사료학회 1981 韓國營養飼料學會誌 Vol.5 No.1

Bifidobacterium을 이용한 콩·쌀 혼합 발효유의 필수아미노산 조성, 유산균 생존율 및 isoflavone 농도

盟元在,洪熙玉 대한민국 학술원 2007 학술원논문집 : 자연과학편 Vol.46 No.1

본 연구에서는 콩과 쌀을 혼합하여 Bifidobacterium으로 발효시킨 후 발효 전인 콩·쌀 혼합유와 발효 후인 콩·쌀 혼합 발효유 내에 함유된 기능성 물질인 isoflavone함량과 필수아미노산의 함량을 규명하였다. 또한 기호도 조사를 위하여 관능검사를 실시하였으며, 콩·쌀 혼합 발효유의 보존성 및 이동성의 우수함을 규명하고자 유산균 생존균수를 측정하였다. 두유와 미유를 일정비율로 혼합하여 만든 발효유 중 8:2 비율의 콩·쌀 혼합 발효유가 다른 시료들보다 비교적 높은 기호도 점수를 받았다. 발효 전과 발효 후, 필수아미노산의 함량은 두유의 함유율이 증가할수록 높았고 특히 쌀의 제한 아미노산인 isoleucine과 lysine함량은 두유의 함유율이 증가할수록 증가하여 단백질의 품질이 향상되었다. 총 isoflavone의 함량은 293.63~457.97ug/g를 나타내며 두유의 함유율이 증가할수록 높았고 모든 시료들에서 발효 전에 비하여 발효 후 유의하게 증가하였다(p<0.05). 총 isoflavone 함량에 대한 aglycone의 퍼센트를 비교해 보면 8:2 비율의 콩·쌀 혼합유와 혼합 발효유에서 genistein의 aglycone 함량이 41.01%와 39.52%를 각각 나타내며 다른 시료들보다 유의하게 높았다(p<0.05). 기호도가 가장 우수하다고 조사된 8:2 비율의 콩·쌀 혼합 발효유의 일부는 동결 건조시킨 후 분말 상태로 만들어 액상의 발효유와 함께 4℃와 실온에 보관하면서 유산균의 생균수를 측정한 결과 4℃에 보관하였을 경우는 시간이 경과됨에 따라 생균수의 변화가 없었고 실온에서는 보관 2일이 지나면서 액상 발효유의 생균수가 감소하는 경향을 보인 반면에 분말상 발효유의 생균수는 변화가 없었다. In this study, soy-rice milks composed of soy milk(SM) and rice milk(RM) at ratios of 5:5(SM/RM5:5), 6:4(SM/RM6:4), 7:3(SM/RM7:3), 8:2(SM/RM8:2), 9:1(SM/RM9:1), and 10:0 (SM/RM10:0), respectively were fermented with Bifidobacterium(lactic acid bacteria) and the contents of various isoflavones(aglycones, glucosides), essential amino acid contents, and total number of Bifidobacterium were investigated. The fermented SM/RM 8:2 were more prefered than other samples by the sensory evaluation. The more soy milk were added, the more contents of essential amino acids, especially isoleucine and lysine were increased. Therefore, the essential amino acid contents of unfermented SM/RM 10:0 were significantly higher than those of unfermented and fermented SM/RM5:5(p<0.05). However, isoleucine and lysine contents did not show any difference between the unfermented and the fermented SM/RM 10:0 and SM/RM 8:2, respectively. All samples contained 293.63~457.97ug/g of total isoflavone contents and fermented samples were significantly higher than unfermented samples in the isoflavone contents (p<0.05). The percentage of free genistein(genistein aglycone) to total isoflavone content in the unfermented and the fermented SM/RM 8:2 were 41.01%, and 39.52%, respectively, which were higher than those of other samples significantly(p<0.05) because free genistein contents in same samples were the highest. When liquid and powder of unfermented and fermented SM/RM 8:2 were stored at 4℃, total numbers of Bifidobacterium did not show any difference between two samples. But when those samples were stored at room temperature, total numbers of Bifidobacterium of liquid sample tended to decline after 2 days but those of powder one maintained few change during 6 days.