• 한국염색가공학회지
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• 제17권1호
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• pp.52-59
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• 2005

The purpose of this study is to establish the scientific data of cotton fabric pretreated with skim milk powder and to improve the dyeability. The surface monophology, add on, whiteness, stiffness, air permeability, moisture regain and absorption of cotton fabrics were evaluated by varying concentration of SMP to get the optimal conditions in pretreatment. FT-IR of cotton fabrics pretreated with SMP were measured. Amino acid compositions, viscosity of SMP were evaluated. The K/S values by varying concentration of cinnamon cassia and subtract of dyed SMP-C were measured. I attempted to evalute the color fastness of untreated and AI. The results are as follow; The optimal concentration of SMP was 9%(w/v) to be pretreated with cotton fabrics. From FT-IR spectrum, formation of -NH$_2$ and -COOH was verified by SMP-C. Denaturalization of protein and condensation of carbohydrate, fat, etc. were found in a measurement of amino acid and viscocity. The K/S value of cotton fabrics pretreated with SMP was higher than that of untreated. Most of the color fastnesses were great.

• Journal of Nutrition and Health
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• 제22권6호
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• pp.476-484
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• 1989

An epidemiological survey was made on dietary calcium intake, serum total calcium and ionized calcium ion, and serum lipid compositions. Compared with 120 normotensive controls, 101 hypertensive subjects were significantly higher in the levels of serum cholesterol and triglyceride, but lower in HDL-cholesterol and higher in the ratio of total choesterol/HDL-chol Hypertensive subjects were also significantly lower in the relative amount of fatty acids C18:2 but higher in those of C20:0, C20:2 and total amount of saturated fatty acids(longer than C14:0) than control serum. Patients were significantly lower in serum total calcium and ionized calcium ion concentrations and significantly less calcium ingestion from milk and dairy produces by feeding frequency test.

• 한국임상수의학회지
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• 제11권2호
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• pp.553-560
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• 1994

This experiment was conducted to evaluate the feed value of Macol meal, which is one of the byproducts from the extraction of liquid syrup from barley grain, on lactating dairy cows. All of the lactating dairy cows feeding in eight dairy farms were used in feeding experiment and fed concentrates plus Macol meal 5Kg as wet basis. The milk yields and milk fit during the periods of 10 months were investigated and blood picture, blood chemistry and diseases occuring frequency before and after feeding Macol meal were analyzed. The results obtained were as follows ; 1. In the proximate compositions, the contents of moisture, crude protein, crude fat, crude fiber, crude as and nitrogen free extracts was 68.8%, 7.43%, 1.04%, 7.08%, 1.56% and 14.09% respectively. On the other hand, the contents of NDF, ADF and cellulose was 36.68%, 35.71% and 10.85%, as dry matter basis, respectively. 2. The daily milk yield per head was 22.84kg during two months before feeding Macol meal and 23.89 kg during the periods of ten months after feeding Macol meal. 3. The blood picture and blood chemistry were not affected by feeding Macol meal. 4. The diseases occuring frequency were not significantly affected by feeding Macol meal. from the results of this experiment it could be concluded that Macol meal can be used in lactating dairy cows rations without any adverse effects.

• Preventive Nutrition and Food Science
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• 제2권3호
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• pp.202-206
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• 1997

To develop mil fat fractions with desirable physico-chemical properties, anhydrous milk fat (AMF) was fractionated by one- and two-stage extractions using supercritical $CO_2$(SC-$CO_2$). Tow-stage extraction of AMF was performed by first producing tow fractions, an extract and a residue at 4$0^{\circ}C$/241bar, which were subsequently used as the feed for an extraction at 6$0^{\circ}C$/241bar and 4$0^{\circ}C$/345bar, and separated into five and four fractions, respectively, based one extraction time. These fractions were quantified and analyzed for fatty acids and physico-chemical properties. SHort-chain (C4~C8) fatty acids in extract fractions from an extract were 200~150% compared with those of the original AF. Long-chain (C14~C18) fatty acids in extract fractions from a residue were 118~141%. The ratio of unsaturated fatty acids in the residue fraction was 131%. Melting point ranged from 22 to 43$^{\circ}C$, iodine value 21.8 to 36.9, and saponification value 255 to 221 in the extract and residue fractions. SC-$CO_2$ fractionation of AMF by two-stage extraction offers the possibility of developing ractions with discrete fatty acid compositions and physico-chemical properties such as melting point, iodine value and saponification value.

• 농업과학연구
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• 제20권1호
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• pp.56-67
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• 1993

본(本) 연구(硏究)는 유단백질(乳蛋白質)의 유전적표식(遺傳的標識)(genetic marker)를 유우(乳牛)의 유전적(遺傳的) 개량(改良)을 위한 유우등록 및 선발(選拔) 자료로 활용하고자 1992년 국립 종축원에서 사육증인 Holstein종 159두에서 각각 유즙 시료를 채취하여 Polyacrylarnide gel(PAGE)에 의한 전기영동방법에 의하여 ${\alpha}S1$-casein(${\alpha}S1$-CN) 및 ${\beta}$-casein(${\beta}$-CN), ${\kappa}$-casein(${\kappa}$-CN) 및 ${\beta}$-lactoglobulin(${\beta}$-LG)의 유전적(遺傳的) 다형(多型)을 분석(分析)하여 유전적(遺傳的) 변이체의 표현형(表現型), 유전자형(遺傳子型) 및 유전자빈도(遺傳子頻度)를 추정하고 이들 단백질의 유전적(遺傳的) 다형(genetic polyrnorphisms)과 유조성분과의 연관성을 분석(分析) 검토(檢討)하였다. 유단백질(乳蛋白質)인 ${\alpha}S1$-CN, ${\beta}$-CN, ${\kappa}$-CN 및 ${\beta}$-LG 유전좌위(遺傳座位)의 유전적(遺傳的) 변이체의 표현형(表現型) 분포의 관찰치와 기대치간에 유의적(有意的)인 차이가 인정 되지않아 이들 유전자(遺傳子)들이 유전적(遺傳的) 평형을 이루고 있는 것으로 사료되었다. 유단백질(乳蛋白質) 좌위(座位)의 유전자형(遺傳子型)을 분석(分析)한 결과(結果) ${\alpha}S1$-CN BB유전자형(遺傳子型), ${\beta}$-CN AA유전자형(遺傳子型), ${\kappa}$-CN AA유전자형(遺傳子型) 및 ${\beta}$-LG AB 유전자형(遺傳子型)의 출현빈도(出現頻度)가 각각 79.87%, 84.28%, 71.70% 및 49.10%로 높게 나타났다. 유단백질(乳蛋白質)의 유전자빈도(遺傳子頻度)에 있어서는 ${\alpha}S1-CN^B$와 ${\alpha}S1-CN^C$가 각각 0.899 및 0.101이었고, ${\beta}-CN^A$ 및 ${\beta}-CN^B$은 각각 0.921 및 0.079이었으며, ${\kappa}-CN^A$ 및 ${\kappa}-CN^B$은 각각 0.837 및 0.163이었고, ${\beta}-LG^A$ 및 ${\beta}-LG^B$은 각각 0.378 및 0.622이었다. 분산분석(分散分析) 결과(結果) 유단백질(乳蛋白質)의 유전자형(遺傳子型)들은 유조성분인 유지율, 단백질 함량 및 총 고형분 함량에서 유의적(有意的)인 연관성이 인정되었다. 유조성분 함량에 있어서는 ${\kappa}$-CN좌위(座位)의 BB유전자형(遺傳子型)은 유지율 및 유단백질(乳蛋白質) 함량에서 ${\kappa}$-CN좌위(座位)의 AA 및 AB 유전자형(遺傳子型)보다 유의적(有意的)으로 높게 나타났으며, ${\beta}$-LG좌위(座位)의 AA유전자형(遺傳子型)은 유지율에서 ${\beta}$-LG좌위(座位)의 AB 및 BB 유전자형(遺傳子型)보다 유의적(有意的)으로 높게 추정되었다. 이상의 연구결과(硏究結果)를 종합하여 볼때 유조 성분인 유지율 및 단백질함량을 높히기 위하여서는 ${\kappa}$-CN좌위(座位)의 BB 유전자형(遺傳子型)과 ${\beta}$-LG좌위(座位)의 AA 유전자형(遺傳子型)을 선발(選拔)하는것이 보다 유리할 것으로 생각되었다.

• 한국유기농업학회지
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• 제24권3호
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• pp.453-463
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• 2016

본 연구는 항생제 대체제로서 Dicarboxylic acid가 in vitro 반추위 발효성상, 착유우의 유량 및 유성분에 미치는 영향을 조사하기 위한 목적으로 실시하였다. 반추위 발효성상을 조사하기 위하여 batch culture 방법을 이용하였으며, Dicarboxylic acid의 급여가 착유우의 유량 및 유성분에 미치는 영향을 조사하기 위하여 평균체중 $649{\pm}19 kg$으로 일일 산유량 $38{\pm}3.95kg$, 유지방 $3.22{\pm}0.23%$, 산 차 $2.5{\pm}1.43$차인 홀스타인 착유우 10두를 산 차 및 산유량 등을 고려하여 시험사료에 따른 2개 군(대조구 5두, Dicarboxylic acid 급여구 5두)으로 나누어 실험을 실시하였다. Dicarboxylic acid는 사료급여량의 2%를 첨가하여 1일 2회 오전과 오후 착유 시 급여하였다. Dicarboxylic acid는 반추위내 pH에 긍정적인 영향을 주어 건물소화율이 유의적으로 증가하였다. 따라서 Dicarboxylic acid는 반추위 발효환경에 긍정적인 영향을 미치는 것으로 판단된다. 건물소화율은 Dicarboxylic acid를 단독 급여할 때 가장 높았다. 또한 Dicarboxylic acid를 추가 급여하면 반추위 내 총 VFA 함량이 증가하는 경향을 나타내었다. Acetic acid 농도는 Dicarboxylic acid 단독 처리구에서 높게 생성되는 경향을 나타내었다. 착유우의 유량은 Dicarboxylic acid를 급여한 처리구에서 대조구 대비 약 14%의 유량이 증가하였다. Dicarboxylic acid는 유성분 및 MUN에는 영향을 미치지 않는 것으로 판단된다. 따라서 항생제 대체제로서 Dicarboxylic acid 첨가는 반추위 내 발효환경을 안정화하여 건물소화율을 향상시키고 착유우의 유량을 높일 수 있을 것으로 판단된다.

• Asian-Australasian Journal of Animal Sciences
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• 제29권12호
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• pp.1734-1741
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• 2016

This study was conducted to examine the effects of adding phytoncide oil extracted from Korean pine nut cone by-product to the diet of dairy cows on milk yield and compositions, fatty acid characteristics, complete blood count and stress response. A total of 74 Holstein cows were used for 30 days and divided into two groups. Each group was given a basal diet (C) or an experimental diet containing phytoncide additives at 0.016% (T) in feed. The results showed that phytoncide feeding had no effect on milk yield. In addition, there were no observed effects on milk composition, but the ratio of fatty acid in milk was significantly affected by the phytoncide diet, and it showed a positive effect. Not only were the major functional fatty acids, conjugated linoleic acid and eicosapentaenoic acid increased, but also ${\omega}6:{\omega}3$ fatty acid ratio was reduced in milk of T group (p<0.05). In blood analysis, the complete blood count showed no significant difference between C and T group on all parameters. However, the cortisol concentration was significantly decreased in T group compared to control (p<0.05). Taken together, we suggest that phytoncide oil does not have a great influence on the physiological changes, but can be a potential feed additive that improves the milk fatty acid and stress resilience in dairy cows. In addition, it will contribute to the development of feed resource, a reduction in feed cost and a lessening of environmental pollution.

• 한국축산식품학회지
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• 제21권4호
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• pp.358-366
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• 2001

초유의 이용성을 향상시키고, 그 품질을 보존하기 위한 방안의 일환으로 분만 후 12시간 간격으로 착유한 초유를 이용하여 시간의 경과에 따른 초유의 성분 변화를 조사하였다. 그 결과, 초유의 단백질, 지방, SNF, 그리고 총 고형분은 분만 후 12시간부터 48시간까지 급속도로 감소하였다. 그러나, 유당은 분만 12시간 후의 함량이 가장 낮았으며, 회분 함량은 거의 변화하지 않았다. 분만 후 12시간 및 24시간의 IgG함량은 그 이후에 착유한 것보다 높았으며(p<0.05), 12시간 후의 IgG 함량은 큰 차이가 없는 것으로 나타났다. 분만 후 시간의 경과에 따른 초유 중의 지방산 조성은 거의 변화하지 않았으나, lauric acid, myristic acid, 그리고 총 포화 지방산 함량은 경산우에서 감소하는 경향을 나타내었다. 미경산우의 capric acid, lauric acid, myristic aid, 그리고 palmitoleic acid는 경우산의 초유보다 높은 함량을 나타내었다.

• KSBB Journal
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• 제30권3호
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• pp.109-113
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• 2015

Current drying and encapsulation methods for probiotics manufacturing are complicate and cost-burdened processes. The aim of this study was to develop a simple ingredient mixture to make probiotic granules via one-step process, providing not only a cryoprotective effect during freezing and drying but also high survival ratio in gastrointestinal tract. As cryoprotectans, commercially available ingredients including skim milk, monosaccharide (trehalose or glycerin), maltodextrins (with low or high degree of equivalents) were used. Their cryoprotective effect during lyophilization and survival ratios in artificial gastric juice and bile salt were measured against 3 strains of lactic acid bacteria (LAB) (Lactobacillus plantarum, Lb. brevis, and Lactococcus lactis). As results, 3 mixtures with different compositions showed a cryprotective effect on LAB tested and the best compostion was dependant upon LAB; skim milk 10%, trehalose 15%, glycerin 0.5%, and NaCl 1% was for Lb. plantarum and Lc. lactis, and maltodextrin 10% instead of skim milk was for Lb. brevis. In addition, those mixtures showed similar survival effect on LAB tested. These results demonstrate that skim milk or maltodextrins with trehalose, glycerin, and NACl can be effectively used for onestep lyophilization of LAB as an alternative method of encapsulation.

• Asian-Australasian Journal of Animal Sciences
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• 제13권4호
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• pp.474-477
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• 2000

Two experiments were conducted to study the use of urea-treated rice straw (UTRS) and whole sugar cane (WSC) crop as roughage sources for dairy cattle during the dry season. Experiment I, four rumen-fistulated dairy crossbred steers were assigned to receive roughage treatments according to a $4{\times}4$ Latin square design: $T_1=urea-treated$ (5%) rice straw, $T_2=UTRS$ and WSC at 75:25% DM, $T_3=UTRS$ and WSC at 25:75% DM, and $T_4=WSC$. Experiment II, three rumen fistulated, late lactating multiparous Holstein-Friesian crossbreds were randomly allotted to a $3{\times}3$ Latin square design to receive three types of roughages; $T_1=WSC$, $T_2=UTRS$, $T_3=WSC+UTRS$ at 50:50% DM. It was found that combination of UTRS and WSC at 75:25 ratio significantly increased DM intake while intake of WSC alone was lowest. Moreover, inclusion of UTRS into WSC enhanced digestibilites (Exp. I). In Exp. II, combination of UTRS with WSC at 50:50 ratio (DM) enhanced DM intake (kg/d) (p<0.05) and especially milk yield, milk fat and protein percentages. The findings suggest the combined use of WSC and UTRS improved the feeding values of these roughages for dairy cattle during the dry season.