• 대한가정학회지
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• 제24권4호
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• pp.51-55
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• 1986

The composition of human milk was compared with that of cow's milk. The contents of amino acids were analyzed by amino acid autoanalyzer. The content of glutamic acid in cow's milk was three times as much as that in human milk. The content of essential amino acid in human colostrum was twice as much as that in mature milk.

• 한국임상수의학회지
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• 제15권1호
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• pp.178-179
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• 1998

In a 2-month pregnant cow, tibial nerve paralysis occurred. The hock joint is overflexed and the fetlock is partially flexed since one month. After treatment with adequate beddings anti-inflammatory ointment and electrolyte solution during 4 weeks is recovered completely.

• 패션비즈니스
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• 제16권4호
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• pp.100-106
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• 2012

This research was carried out to find the mordant effect of Chestnut's inner skin on the cow leather dyed by Turmeric powder. The best proper mordanting conditions were examined by changing mordant method, concentration, temperature, bath ratio, time, and repetition. Also dyeability and surface color changes were evaluated by various mordanting methods. The optimum mordanting conditions of chestnut's inner skin extract on the cow leather were pre mordant, 80%, $50^{\circ}C$, 50:1, 40minutes, 4 repetition. The K/S values as a mordant were higher in pre mordant than post mordanting condition. Although the ${\Delta}E$ was slightly higher in post mordant than pre mordant, it was too small to find any means. The surface colors of all dyed cow leathers were yellow. Among light, dry cleaning, and abrasion fastnesses, only light fastness was increased one degree, others were same degrees.

• 패션비즈니스
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• 제17권4호
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• pp.140-148
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• 2013

This research was carried out to find the dyeabilities and mordants effects of cow leather dyed with Lac powder. They were examined by changing dye concentration, dyeing temperature, bath ratio, dyeing time, and dyeing repetition. And K/S values and surface color changes were evaluated by various mordanting conditions. The optimum dyeing conditions of the cow leather dyed with Lac powder were 30%, $40^{\circ}C$, 30:1, 30minutes, and 4 repetitions. The K/S values were higher in post mordant than pre mordanting condition. The surface colors of dyed cow leathers were R and RP. The dye fastnesses increased in post Cu and Fe mordanting, as decreased in gallnut and chestnut's skin conditions.

• Carbon letters
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• 제9권1호
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• pp.1-7
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• 2008

The ability of cow dung ash without any pretreatment to remove color from textile dyes N Blue RGB, Green B and EOSIN YWS from aqueous solution has been investigated in this work. Cow dung ash, an ecofriendly and low cost adsorbent was prepared by burning cow dung cakes in the muffle furnace at $500^{\circ}C$. The adsorption was achieved under different pH and adsorbate concentration. The data was fitted to simple polynomial and the isotherms similar to Langmuir and Freundlich isotherms.

• 대한수의학회지
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• 제60권4호
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• pp.237-240
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• 2020

This is the report of sacroiliac luxation in a Holstein-Friesian cow, describing the progression of the sacroiliac luxation from the onset of its development with changes in estradiol (E2) and serum chemistry. The high estrogen concentration was assumed to be a predisposing factor of the disease that relaxed the pelvic muscles and a secondary slippery finally caused the sacroiliac luxation. The E2 was present at levels four times higher in the cow with sacroiliac luxation (167 pg/mL) than in normal cows. Above normal levels of creatinine kinase, aspartate aminotransferase, and lactate dehydrogenase were also observed in cow with sacroiliac luxation.

• Asian-Australasian Journal of Animal Sciences
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• 제10권5호
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• pp.523-527
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• 1997

The fatty acid compositions of oocytes, follicular, oviductal and uterine fluids of pig and cow were analyzed using gas chromatography. Myristic (C 14: 0), palmitic (C 16: 0), palmitoleic (C 16: 1), stearic (C 18 : 0), oleic (C 18: 1), linoleic (C 18: 2), linolenic (C 18: 3) and arachidonic (C 20: 4) acids were identified as the common fatty acid constituents with little exception. Oleic acid composition was the highest (21.90 to 36.24%) in both pig and cow followed by palmitic (18.61 to 31.90%) and stearic (10.34 to 20.39%) acid. The three polyunsaturated fatty acids like linoleic, linolenic and arachidonic acids were detected in both pig and cow reproductive fluid samples. Myristic acid was not detected in pig oviductal fluid. Similarly, in cow oocytes myristic, palmitoleic and linolenic acids were not detected. Moreover, palmitic, stearic, oleic and linoleic acid comprised about 80% (73.74 to 88.00%) of the total fatty acids in the different samples analyzed in both animals.

• 한국유기농업학회지
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• 제31권4호
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• pp.327-341
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• 2023

The Ministry of Agriculture, Food and Rural Affairs, Hanwoo Association and Nonghyup have discussed proactive reduction measures for cows in response to concerns about an oversupply of hanwoo to ensure supply stability. This study aims to empirically analyze whether the cow fattening support program is being implemented in line with its objectives. Based on the analysis of beef traceability data, the slaughter age of participating cows was reduced by 7.6 to 14.7 months compared to non-participating cows. And heifer was reduced 1.5 months in their slaughter age. In case of parity, participating cows showed a reduction of 1.4 compared to non-participating cows. Through the SUR model, an analysis was conducted to examine the effect of the cow fattening support program on the suppression of calf production numbers. The analysis results showed that the calf production numbers are positively influenced by the number of fertile cow and the quantity of semen sales. Furthermore, it is estimated that calf production decreased as the fat index increased, and during the period when the cow fattening support program was implemented, an average monthly suppression of 3,558 calves was observed.

• Journal of the Korean Data and Information Science Society
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• 제27권3호
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• pp.733-739
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• 2016

본 연구는 이미 한우에서 검증된 지방산 합성 효소 유전자의 g.15532 C>A, g.17924 G>A 단일염기다형성과 암소의 후대들 중 거세우의 도체성적을 이용하여 유전자 활용에 대한 방안을 모색하고자 한다. 이 단일염기다형성의 유전자형을 분석하기 위해 경북지역에서 사육된 암소 270두와 이들의 후대들 중 도체성적이 있는 거세우 270두의 게놈 DNA를 추출하여 단일염기확장법으로 유전자형을 분석하였다. 본 연구에 사용된 통계모델은 GLM의 ANCOVA 방식을 사용하였다. 한우 거세우와 암소집단에서 g.15532 C>A와 g.17924 G>A 단일염기다형성들과 근내지방도간 연관분석을 한결과 거세우집단에서 근내지방도와 유의적인 차이를 나타내었지만 암소집단에서는 유의적인 차이를 나타내지 않았다. 하지만 일반 한우농가에서 개량하는 있는 방식인 후대검정우 등급판정 결과를 이용하여 이 단일염기다형성과 분석한 결과 암소 집단에서 유의적인 차이를 나타내었다. 따라서 g.15532 C>A와 g.17924 G>A 단일염기다형성은 한우 암소 개량에 있어 후대검정우 등급판정결과와 조합하여 사용할 경우 근내지방도 개량에 효율적인 선발 보조도구 활용가치가 높을 것이라 판단되어진다.

• 한국수정란이식학회지
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• 제10권3호
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• pp.183-191
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• 1995

This experiment was carried out to study the determination of survival of vitrified and thawed mammal follicular oocytes by FDA-test. Oocytes were divided into 3 groups according to attachment of cumulus cell. Group A oocytes were tightly surrounded by cumulus cell, group B oocytes were partially surrounded by cumulus cell, and group C oocytes were poorly surrounded by cumulus cell. Vitrification solution developed by our previous study (Kim et al, 1992) which consisted of permeable agent (20 % glycerol + 10 % ethylene glycol) and nonpermeable agent (30 % Ficoll + 10 % sucrose). Oocytes (7~10) loaded into 0.25 ml straw after 10 min equilibration were plunged into liquid nitrogen (- 196$^{\circ}C$) directly. The FDA-score of vitrified and thawed group A oocytes was higher in rat (4.2) than in rabbit (3.9), cow (3.8), mouse (3.4) and porcine (2.4), however that of cumulus cell was higher in rabbit (4.7) than in rat (4.1), cow (2.9), porcine (2.6) and mouse (1.4). The FDA-score of vitrified and thawed group B oocytes were 3.1 (cow), 2.9 (rabbit), 2.9 (mouse), 2.6 (rat) and 2.5 (porcine), respectively. However that of cumulus cell was higher in rabbit (3.7) than in porcine (2.6), rat (2.3), cow (1.7) and mouse (0.3). The FDA-score of vitrified and thawed group C oocytes was higher in mouse (4.1) than in cow (2.9), rabbit (2.6), rat (1.3) and porcine (1.1). As shown in the above results, The survival rates of oocytes were higher in group A than in group B and C except in mouse and cow. These results suggest that the survival of cumulus cell as well as follicular oocytes can be reliably judged by their fluorescence with FDA-test.