• Asian-Australasian Journal of Animal Sciences
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• 제11권4호
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• pp.385-390
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• 1998

An experiment was conducted for 90 days using 9 growing bull calves (initial LW 71.5 kg) to investigate the effect of replacing til oil cake by poultry excreta on growth performance and nutrient utilization. The animals were randomly divided into three groups. The control group A was fed with conventional concentrate mixture containing til oil cake, rice bran, wheat bran, bone meal and common salt and the groups B and C were offered diets in which 50 and 100 percent of til oil cake of diet A were replaced by dried poultry excreta. All the animals were fed urea soaked rice straw ad libitum and concentrate mixture was given at the rate of 10 g per kg LW. Towards the end of growth trial a conventional digestibility trial was conducted. Average daily live weight gain was 216, 211 and 188 g for animals fed diets A, B and C, respectively. Average daily dry matter intake in groups A, B and C was 3.42, 3.37 and 3.30 kg per 100 kg LW, respectively. The daily live weight gain and dry matter intake did not differ significantly (p > 0.05) among the dietary groups. The digestibility coefficient for DM or NFE was almost similar but that for OM, CP, CF and EE was significantly different (p < 0.01) among the dietary groups. TDN percent in diets A, B and C was 57.3 53.3 and 50.8, respectively and the difference was significant (p < 0.01). Animals in all the groups were in a state of positive nitrogen balance. The results indicated that til oil cake can be replaced by dried poultry excreta in bull calf ration.

• Asian-Australasian Journal of Animal Sciences
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• 제28권10호
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• pp.1479-1487
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• 2015

A total of 420 day-old male Ross chicks were weighed at d 1 of life and assigned to test diets to assess the efficacy of a new Buttiauxella spp. phytase expressed in Trichoderma reesei. Diets were: positive control (PC) adequate in nutrients and negative control (NC) diet (40% and 17% less available phosphorous (P) and calcium (Ca), respectively) supplemented with 6 levels of phytase 0, 250, 500, 750, 1,000, and 2,000 phytase units (FTU)/kg of diet. All diets had titanium dioxide as digestibility marker and each diet was allocated to ten cages (6 birds/cage). Diets were fed for 3 wk to measure growth performance, apparent retention (AR) on d 17 to 21 and bone ash and ileal digestibility (AID) on d 22. Growth performance and nutrient utilization was lower (p<0.05) for NC vs PC birds. Phytase response in NC birds was linear (p<0.05) with 2,000 FTU showing the greatest improvement on body weight gain (20%), feed conversion (7.4%), tibia ash (18%), AR of Ca (38%), AR of P (51%) and apparent metabolizable energy corrected for nitrogen (5.1%) relative to NC. Furthermore, phytase at ${\geq}750FTU$ resulted in AID of total AA commensurate to that of PC fed birds and at ${\geq}1,000FTU$ improved (p<0.05) AR of P, dry matter, and N beyond that of the lower doses of phytase and PC diet. In conclusion, the result from this study showed that in addition to increased P and Ca utilization, the new Buttiauxella phytase enhanced growth performance and utilization of other nutrients in broiler chickens in a dose-dependent manner.

• 한국근적외분광분석학회:학술대회논문집
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• 한국근적외분광분석학회 2001년도 NIR-2001
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• pp.3103-3103
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• 2001

NIR has been extensively used to predict directly measurable properties of materials that are important to the appropriate industries. Commonly, NIR is used to perform fast, routine tests to improve control response as against the response time for the (normally chemical) base test. This paper discusses the use of NIR to measure indirect properties of materials. In these cases, the pure chemical or physical tests are either unable measure the appropriate parameters (eg GMO modification) or there are mitigating effects that are not properly addressed by the base tests. In particular, we looked at the digestible portion of amino acids within meat and bone meal. This is the desired response measurement by end-users of the product (intensive livestock producers) but is currently unable to be offered as a measurement by producers. The base test method is by controlled feeding trials. These are somewhat cumbersome, taking 2-3 months, involving several sets of animals, and considerable expense. A shortened test (feed trial based) would be of little use, as the precision blows out over short period feeding trials. For example, a rat ileal digestibility test requires around 2 months, and costs some $USD1000. This is clearly impractical test for a producer involved in continuous production, with a 1-2 day turn around. While the amino acid abundance is accessible chemically, the uptake of amino acids into usable material by mammalian species is not simply related to the measured abundance within the material. There are many co-related material properties that might help or hinder uptake, some chemical based (eg protein damage), some indirect (eg palatability), some physiological (intestinal tract response vs speed of throughput). We discuss the approaches taken to provide a suitable reference data set, and present the derived prediction and validation relationships.

• 한국버섯학회지
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• 제10권1호
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• pp.44-48
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• 2012

본 연구에서는 배양된 액체종균의 세균 오염 여부를 Giemsa 용액의 단일 염색으로 짧은 시간 안에 정확하게 판정이 가능한지를 조사하였다. Giemsa 용액은 혈액 골수 림프절 말라리아 원충 리케차 세포 등을 염색하는 것으로, 염기성 색소인 methylene azul과 methylene blue, 그리고 산성색소인 eosine을 methyl alcohol-glycerine에 녹여서 제조하였다. 그리고 팽이 액체종균의 폭기 배양액 분취하여 슬라이드에 올리고 Gimesa 용액으로 염색한 후 광학 현미경으로 검사하였다. 이 결과 40~60초 동안의 세균세포를 (팽나무)버섯(류) 균사세포의 부스러기나 잔존 대두박 등과 구별할 수 있었다. 이 Gimesa 용액을 이용한 염색 및 검경방법은 빠르고 간편하며 정확하므로 액체종균을 사용하는 버섯재배 농가에서도 세균 오염을 효과적으로 동정(감지)하는데 이용할 수 있다고 생각한다.

• 한국식품조리과학회지
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• 제23권6호
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• pp.987-1002
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• 2007

조선시대 고조리서와 고문헌고찰을 통한 전통음식인 미음, 미수, 고음류의 조리방법은 다음과 같다. 미음류는 쌀과 잡곡류를 섞어 조리한 미음류 7종류와 견과류에 잡곡류와 한약재료 등을 섞어 조리한 미음류는 3종류이었다. 약초 등 한약 재료에 육류, 조류, 어패류 등을 섞어 조리한 미음류는 7종류로 총 17종류의 미음과 미수, 고음류 등이 분류되었다. 세부적인 조리방법은 다음과 같다. (1) 곡류를 이용한 미음으로 쌀과 조 등은 오랫동안 끓여 즙을 내 체에 받혀 소금간을 하였고, 율무, 수수 등은 수비한 가루를 끓이거나 물에 타 먹었다. (2) 인삼 등 한약재료 등은 오래 동안 끓여 성분이 용출되면 체에 밭여 액즙을 사용하였고 고기, 뼈, 어패류 등도 함께 오랫동안 푹 끓여 체에 받혀 즙으로 만들어 수시로 음료 마시듯이 이용하였다. 갈분, 율무 등은 수비한 가루로 묽게 끓였다. (3) 고기와 어패류를 이용한 미음으로는 고기와 어패류를 함께 푹 끓여 체에 받힌 후 묵은 간장으로 간을 하였으며, 뼈, 양, 도가니 등은 함께 만화로 오랫동안 끓여 체에 밭여 즙으로 짜거나 찹쌀이나 멥쌀로 함께 끓여 섞기도 하였다. 현대인들의 바쁜 일상에 일하면서 공부하면서 바로 먹을 수 있는 식사대체음식이 요구되는바 이에 전통음식이었던 미음, 미수, 고음류의 문헌고찰과 조리방법을 1차적인 연구로 시도하였다. 또한 고 조리서 속 전통음식을 재현한 문헌을 제시하였고 조리방법도 비교하였으며 전통음식을 조리과학적으로 실험한 연구동향을 살펴보았다. 후속 연구로 전통음식을 조리과학적인 실험연구로 전체적인 성분과 조리후의 영양 손실과 잔존여부, 실온상태에서의 보존료가 첨가되지 않은 기간동안의 부패 여부 등과 조리후의 항산화성 등을 실험하고 조리후의 관능평가를 거친 후 상품으로서의 식사대체음식 개발을 위한 기초연구자료로 삼고자 한다.

• 한국토양비료학회지
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• 제40권2호
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• pp.156-163
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• 2007

본 연구는 혼합유기질비료를 액비화할 때 액비화 효율을 증진시키기 위하여 폭기시간과 유기질비료 농도에 따른 무기성분의 특성변화를 조사하였다. 혼합 유기질비료는 참깻묵, 쌀겨, 어분, 혈분 등의 유기질 재료와 일라이트, 패화석 등으로 이루어져 있으며 약 2개월간의 발효과정을 거쳤고 N, $P_2O_5$, $K_2O$ 및 유기물함량은 각각 $23.0g\;kg^{-1}$, $17.0g\;kg^{-1}$, $23.9g\;kg^{-1}$, $290g\;kg^{-1}$이었다. 폭기시간은 일 2시간, 8시간, 연속 폭기 및 무폭기의 처리를 두었으며 물량에 대한 유기질비료 농도는 10%로 하였다. 유기질비료 농도에 따른 특성변화는 전체 물 함량에 대한 유기질비료 농도를 5%, 10% 및 20%로 하고 일 2시간씩 폭기를 하였다. 액비제조 기간이 경과함에 따라 폭기시간에 관계없이 pH, EC 및 $NH_4-N$ 농도는 증가하였다. 일 2시간 폭기한 처리구에서 액비제조 10일 후의 N, $P_2O_5$ 및 $K_2O$ 농도는 각각 $646mg\;kg^{-1}$, $68.1mg\;kg^{-1}$, $453mg\;kg^{-1}$으로 침출률은 각각 27.6%, 4.0% 및 18.9%이었으며 일 8시간 폭기 및 연속폭기조와 유의적인 차이가 없었다. 연속폭기조에서 호기성 세균, 포자형성 세균 및 사상균의 생균수가 다른 처리구보다 많았다. 물에 대한 유기질비료의 농도를 증가시키면 EC, $NH_4-N$ 및 무기성분 함량은 증가하였으나 유기질비료의 침출률은 감소하였다. 액비제조 10일 후 유기질비료 20% 처리구의 N, $P_2O_5$ 및 $K_2O$ 농도는 각각 $1,140mg\;kg^{-1}$, $35.4mg\;kg^{-1}$, $544mg\;kg^{-1}$이었고 침출률은 각각 24.8%, 2.4% 및 13.6%이었다. 유기질비료 농도의 증가는 포자형성 세균과 Pseudomonas spp. 균의 생균수를 증가시켰다.

• Asian-Australasian Journal of Animal Sciences
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• 제28권1호
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• pp.37-49
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• 2015

During pregnancy, the maternal body undergoes significant physiological changes. The present study assessed the changes on calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) metabolism in singleton and twin-pregnant dairy goats. The 42 goats used ($49.5kg{\pm}7.6$ body weight [BW]) were assigned at random to treatments that were factorially arranged to account for 2 breeds (Oberhasli and Saanen), 2 pregnancy types (singleton and twin) and 3 gestation periods (80, 110, and 140 days). Digestibility trials were performed at 80, 110, and 140 days of gestation. Mineral retention during pregnancy was determined in the maternal body, femur, uterus, mammary gland, fetus and fetal fluid. Blood samples were taken during pregnancy before and after a meal, and Ca, P, Mg, Na, K ions and alkaline phosphatase activity determined in serum. Bone mineral density was determined in the right femur. Statistical analyses were performed using the SAS MIXED procedure. Dry matter intake decreased linearly up to 140 days of gestation. Maternal BW gain, and Ca, P, and Mg retention (g/kg) decreased linearly with the advance of gestation days. Macromineral retention in maternal body (g/kg) was greater in Oberhasli than Saanen goats, and their fetuses had higher Ca, P, and Mg deposition (mg/g). Mineral retention (mg/g) increased in fetuses according to pregnancy development, with no differences between singleton and twin pregnancy. In the mammary gland, the retention of all minerals (g) increased with the days of pregnancy. In conclusion, related to Ca, P, and Mg metabolism can be divided into two stages. Up to 80 days of gestation, was characterized by the preparation of the maternal body reserves for future mineral demands. From 80 days of gestation onward, was characterized by the transfer of maternal body reserves for fetal development and colostrum production. Na and K supply was provided by adjustments in endogenous excretion and an increase in intestinal absorption. Finally, mineral metabolism was specific to each genotype and, except for Na, was not affected by the number of fetuses.

• Asian-Australasian Journal of Animal Sciences
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• 제19권2호
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• pp.217-223
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• 2006

Fifty castrated crossbred ($Landrace{\times}Yorkshire$) pigs, weighing an average of $60.6{\pm}3.1kg$ were allotted to one of five treatments in a randomized block design to examine the effects of dietary inclusion of 0.1% L-carnitine (50 ppm carnitine), 0.1% selenium-enriched yeast (0.3 ppm selenium), 0.1% Jujube fruit or 0.1% Hwangto (Red clay) on pig performance and carcass quality. All diets were based on corn, wheat, soybean meal and wheat bran and were formulated to supply 13.8 MJ DE/kg. Dietary supplementation did not influence daily gain (p = 0.57), feed intake (p = 0.52), or feed conversion (p = 0.32). Digestibility of dry matter (p = 0.60), organic matter (p = 0.74), crude protein (p = 0.76), crude fibre (p = 0.70) and energy (p = 0.75) were also unaffected by inclusion of any of the additives. Tissue samples taken from the longissimus muscle showed that the levels of carnitine (p = 0.0001) and selenium (p = 0.0001) were significantly higher with dietary inclusion of carnitine or selenium-enriched yeast. Dietary treatment did not affect dressing percentage (p = 0.33), carcass lean yield (p = 0.99) or first, $10^{th}$ and last rib midline backfat depth (p = 0.45, 0.82 and 0.47, respectively). Dietary treatment also did not affect the percentages of tenderloin (p = 0.37), bacon (p = 0.36), fat and bone (p = 0.56), picnic shoulder (p = 0.25), skirt (p = 0.80), fresh ham (p = 0.31) or ribs (p = 0.79). However, pigs fed the diet containing Jujube fruit had a higher percentage of Boston butt than pigs fed the carnitine or selenium supplemented diets (p = 0.01). Pigs fed added Hwangto had a higher (p = 0.04) percentage of loin compared with pigs fed supplementary selenium or Jujube fruit. Loin muscle from pigs fed carnitine had a significantly lower Hunter colour value for L (whiteness, p = 0.004) and a higher value for $a^*$ (redness; p = 0.069). The overall results indicate that supplementation with L-carnitine and selenium-enriched yeast can produce pork containing higher levels of carnitine and selenium, which could provide health benefits for consumers of pork without detrimental effects on pig performance.

• 한국가금학회지
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• 제25권4호
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• pp.195-202
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• 1998

본 시험은 건지황을 육계의 사료에 첨가급여하여 육계의 증체량, 사료요구율 및 도체율 등의 생산성과 육질의 근육의 색도, 혈액 조성, 다리의 뼈의 강도, 근육내 지방과 지방산 조성 등에 미치는 영향을 조사하여 고급육 생산의 기초자료와 사료 첨가제 개발을 위해 본 시험을 수행하였다. 공시동물은 브로일러 병아리 160수를 건지황 0(대조구), 0.5, 1 및 2％ 첨가급여한 4개의 처리구로 나누어 6주간 사양시험을 실시하였으며, 분석시험은 사양시험이 끝난 직후 실시하였으며 그 결과는 다음과 같다. 1. 건지황을 육계사료에 0.5, 1 및 2％씩 첨가급여시 증체량, 사료 섭취 량, 도체율은 유의적인 차이가 없었지만 사료요구율은 대조구에 비하여 1％ 첨가구에서 유의적으로 낮았다 (P<0.05) 2. 대퇴근육의 명도(L)은 타처리구에 비하여 1％ 처리구에서 밝게 (P<0.05) 나타났다. 3. 혈청 총단백질, GOT및 GPT함량은 처리구간에 유의적인 차이가 없었으나, 혈청 총 cholesterol 함량은 타처리구에 비하여 0.5％ 첨가구에서 낮게 (P<0.05) 나타났고 혈당함량은 타처리구에 비하여 2％ 첨가구에서 낮게 (P<0.05)나타났다. 헤모글로빈 농도는 대조구 에 비하여 모든 건지황 첨가구에서 낮게 (P<0.05) 나타났다. 4. 대퇴근의 조지방 함량은 타처리구에 비하여 1％ 첨가구에 높았고 다리뼈의 강도는 대조구에 비하여 모든 건지황 첨가구에서 높게 나타났다. 5. 육내 포화지방산 함량은 타처리구에 비하여 대조구와 0.5％ 첨가구에서 높았으나 불포화 지방산함량은 건지황 1 및 2％ 첨가구에서 높게 나타났다. 이상의 결과를 종합해 보면 육계사료에 건지황을 l∼2％ 정도 첨가하여 급여할 경우 육계의 성장과 생리적 변화가 현저히 개선되었으므로 소비자들의 욕구를 충족시킬 수 있는 질 좋은 육계를 생산할 수 있을 것으로 사료된다.

• 한국식생활문화학회지
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• 제22권2호
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• pp.235-245
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• 2007

This study was undertaken to develop web-based nutrition information contents for the older adults. Twenty six domestic web-sites were analyzed and then 12 foreign web-sites and 4 education materials for the elderly of foreign university were benchmarked. Also a lot of literatures on elderly education program were reviewed. A card-sorting task was performed with 8 older adults to ascertain how the target audience organized information about nutrition. The results were as fellows. Among 26 domestic web-sites, 2 sites(7.7%) were only for the elderly. Main topics of information contents for the elderly included 'Importance of Healthy Eating', 'DRI', 'Dietary Guidelines'. Four of twelve foreign web-sites were for the elderly nutrition education. Topics of 'Dietary Guideline', 'Meal Program' were found in 4 sites and 'Importance of Healthy Eating', 'Diet & Disease', 'DRI, 'Food Guide Pyramid', 'Nutrition Fact Labels' were found in 3 sites. Education materials of foreign university dealt with basic information on 'nutrient needs changes related with aging', 'Heart & Bone Healthy Eating Plan', 'Food Guide Pyramid'. Also topics on 'Eating on a budget', 'Eating Out Guideline' were included for practical use for the elderly. Based on card-sorting process, contents framework for web-site was developed and 4 main menus for framework were respectively named as 'Nutrition', 'Meals', 'Foods'. 'Check up Nutritional Health' by panel discussion. Finally we developed nutrition information contents for 4 main menus. We focused on helping older adults recognize the importance of healthy eating and apply the nutrition information to practical use. We expect that the developed framework of contents can be a guideline for indentifying the information needs of older adults in developing effective nutrition intervention program. And we suggest that the survey for target people should be peformed for the web-site to be user-friendly designed and the developed contents be evaluated and revised in the near future.