• 한국식품위생안전성학회지
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• 제10권1호
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• pp.19-22
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• 1995

Sensory characteristics of various milk samples-low-temperature long-time(LTLT) milk, high-temperature short-time (HTST) milk and ultra-high temperature (UHT) milk-were investigated using chemical analysis and sensory evaluation. The chemical composition was not much different among the milk samples. The results of evaluation of preference for color, flavor, taste and overall desirability of the milk samples by scoring and ranking tests indicated that significant difference on the sensory quality was recognized at 0.01 percent level. UHT milk samples (especially sample F and H) had better sensory acceptability than LTLT milk HTST milk samples.

• 대한수의학회지
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• 제41권3호
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• pp.407-412
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• 2001

Milk data may be increasingly used as indicators of the protein-energy balance and actual farm feeding practices. It was related to milk production, nutritional and reproductive disorders. The purpose of this study was to investigate the relationship between level of fat, protein or milk urea nitrogen (MUN) from the first test within 35 days in milk and displaced abomasum (DA) in a large dairy herd with high yielding Holstein cows. Milk data from forty-five DA cases were compared to those from 90 healthy cows. Higher odds of DA diagnosis was found with higher 5.0% milk fat, lower 3.0% milk protein. Therefore, cows with a fat to protein ratio of>1.5 had higher risks for DA. Also, incidence rates of DA was higher in the cows which the level of MUN was lower than 12.0 mg/dl or higher than 25.0 mg/dl relative to healthy cows. These results indicate that cows diagnosed with DA were energy deficient prior to DA diagnosis. We conclude that level of fat, protein or MUN serve as a monitoring tool of protein and energy nutritional balance in early lactation cows and also as a significant predictor of risk for DA.

• Journal of Dairy Science and Biotechnology
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• 제24권2호
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• pp.39-45
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• 2006

산양유제품은 산양의 산간 방목지에서 천연의 산야초를 먹는 먹이습성으로 인하여 웰빙식품의 개념으로 뿐만 아니라 산양유 조제식의 형태로 다시 소비되기 시작하고 있다. 우유와 산양유의 조성에는 주요 영양성분의 경우 특별한 차이를 보이지 않는다. 그러나 젖소와 산양의 젖은 케이신 마이셀의 공간구조, 케이신 단백질의 아미노산 조성, 마이셀의 크기, 마이셀의 미네랄 함량 등에 있어서 명백한 차이를 보인다. 산양유제품의 국내생산은 연중 착유가 어려워 소비자에게 연중 공급이 불가능한 문제가 중요한 점으로 대두되고 있다. 그 어려움 속에서 산양유 시장의 확대를 추구하기 위해서는 산양유 제조사들의 집중적인 홍보가 필요하다. 국내 소비시장의 특징은 산양유 소비형태가 주로 신선유로서 소비되며, 발효유로서는 일부만 소비된다는 점이다. 이러한 제품들은 주로 소규모 산양유가공회사에서 생산되며, 대규모 유가공회사에서는 소요량이 많은 산양조제분유 생산에 치중하고 있는 점 또한 특징이라고 할 수 있다. 앞으로 산양유제품의 확대를 위해서는 유가공기술분야의 전문인들에 의해서 한국소비자들에게 적합하지 않은 산양 특유의 불쾌한 냄새와 맛을 제거하는 연구와 기술이 개발되어야 할 것으로 판단된다.

• Journal of Nutrition and Health
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• 제15권2호
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• pp.91-97
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• 1982

In order to study the effects of commercial fermented milk and Lactobacillus juice on the growth and on blood composition of albino rats, these beverages were administered orally everyday and compared with the control rats. Experimental rats gained weight significantly compare with the control rats within the first week, but the body weights were comparable with the control during the next three weeks. WBC count was increased slightly in the experimental groups, but RBC count, hemoglobin and total serum protein contents were almost the same as that of the control group during the period. Fermented milk was effective in food efficiency ratio and fermented milk and lactobacillus juice were not influenced on any of internal organs weight.

• Asian-Australasian Journal of Animal Sciences
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• 제12권4호
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• pp.585-589
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• 1999

Six crossbred goats in their 2nd or 3rd lactation, were administered bromocryptine at 5 mg/day during early lactation of 15-20 days (period I) and thereafter again at an interval of 13 days, bromocryptine was given for 5 days (period II). Blood samples were collected before (-5, -4, -3, -2, -1) during (1, 2, 3, 4, 5) and after (+1, +2, +3, +4, +5) administration of bromocryptine in both the periods of study. In period I, administration of bromocryptine resulted in a decrease in milk yield to the extent of 16..8% in comparison to before treatment, and 28.5% after the cessation of treatment. The glucose content of blood increased (p<0.01) as the milk yield decreased without any change in NEFA concentration. During period II of bromocryptine treatment the milk yields did not change in spite of a decline in prolactin level, perhaps the effect of previous treatment was prolonged. A decline in protein and lactose content of milk after bromocryptine treatment in both the periods of study, when prolactin level also declined suggests a role of prolactin in protein synthesis and also a depressing effect on lactose synthesis.

• 한국식품영양과학회지
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• 제14권1호
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• pp.47-50
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• 1985

한국인 중류층 수유부들로부터 분만 후 70일까지 채취한 유즙의 인 지방질의 자방산 조성이 수유기간의 경과에 어떻게 변화하는지 살펴보았다. 8 : 0 은 이행유 단계에서, 그리고 10 : 0, 12 : 0, 14 : 0 등은 성숙유 I단계에서 각각 유의하게 증가하였다. w6계 대사산물들(20 :2w6, 20 : 4w6, 22 : 4w6)은 수유기간의 경과에 따라 점진적인 감소의 경향을 나타내었다. 24 : 1w9는 이행유 단계에서 유의한 증가의 수준을 유지하다가 그 이후는 초유 수준 이하로 유의하게 감소하였다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권5호
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• pp.738-742
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• 2003

The monitoring was carried out for one year on 20 farms of Mediterranean buffalo situated in central Italy. The milk yield, the somatic cell count, the coagulating properties and some components were determined. The average value of somatic cells was $21.28n{\times}10^3/ml$. Milk production decreased when somatic cell numbers increased. The rennet clotting time increased significantly when somatic cells were higher than $300.00n{\times}10^3/ml$, the curd firming time was significantly higher when somatic cells were more than $1,000.00n{\times}10^3/ml$ and the curd firmness increased up to $200.00n{\times}10^3$/ml, then gradually decreased. Protein and casein decreased when somatic cells increased and the same trend was shown by casein/protein ratio. Both for these components and the coagulating properties the threshold limit of somatic cells to obtain better results was $200.00n{\times}10^3/ml$. The somatic cell number did not show a trend which was strictly influenced by the lactation stage, contrary to what happened in the other species.

• Asian-Australasian Journal of Animal Sciences
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• 제26권5호
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• pp.630-637
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• 2013

To determine the effects of dry period (DP) length on milk yield, milk composition, some blood metabolites, complete blood count (CBC), body weight and score and follicular status, twenty five primiparous and multiparous Holstein cows were assigned to a completely randomized design with DP-60 (n = 13) and DP-20 (n = 12) dry period lengths. Cows in the DP-60 produced more milk, protein, SNF, serum non-esterified fatty acids (NEFA) and beta hydroxyl butyrate acid (BHBA) compared with cows in DP-20 ($p{\leq}0.05$). Serum glucose, blood urea nitrogen (BUN), urea, and glutamic oxaloacetic transaminase (GOT) were all similar among the treatments. Body Condition Score (BCS), body weight (BW), complete blood count (CBC) and health problems were similar between the treatments. Diameter of the first dominant follicle and diameter of the dominant follicle on d 14 were different among the treatments. Thus, results of this study showed that reducing the dry period length to DP-20 had a negative effect on milk production, milk composition and reproductive performance in Holstein dairy cows.

• Journal of Nutrition and Health
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• 제3권3호
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• pp.137-140
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• 1970

한국인(韓國人) 모유(母乳)와 우유(牛乳)에 대(對)해서 GLC법(法)에 의(依)하여 지방산(脂肪酸) 조성(組成)을 구(求)하여 비교(比較)하고 또 채취(採取)한 시료(試料)에 대(對)해서의 일반조성(一般組成)의 치(値)도 기재하였다. 인유(人乳)의 지방산(脂肪酸)은 Butyric acid, Caproic acid 및 Caprylic acid 등(等)의 지방산(脂肪酸)을 거의 함유(含有)하고 있지 않은 점(點)과 우유(牛乳)의 지방산(脂肪酸)은 저급(低級) 지방산(脂肪酸)을 함유(含有)하고 있는 반면(反面) Linol산(酸)의 함량(含量)이 인유(人乳)에 비(比)해서 훨씬 적었다는 점(點)이다.

• 한국축산식품학회지
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• 제30권3호
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• pp.512-517
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• 2010

본 연구는 전통당류식품인 엿 제조시 발생하는 엿밥에 대한 영양가치 평가와 착유우에서의 유량 및 유조성분에 미치는 영향을 규명하고자 실시하였다. 엿밥은 잔류하는 효소 및 당도 함량이 높고, 단백질과 지방 함량이 옥수수 글루텐에 필적 할 만큼 영양적 가치가 우수한 것으로 나타났다. 착유우에게 완전배합사료 형태로 엿밥을 1, 3 및 6% 급여하였을 때 고능력우군(평균유량 31.3 kg)에서는 대조구에 비해 유량 증진 효과가 인정되었으며, 엿밥 3% 군에서는 유지율도 증가하였다(p<0.05). 저능력우군(평균 유량 18.9 kg)에서도 엿밥 1 및 6% 첨가군에서 유량이 증가하였으며(p<0.05) 엿밥 3%군에서는 유단백질 함량도 증가하였다(p<0.05). 그러므로 우유 생산 시 엿밥의 적극적인 활용은 축산식품을 보다 저렴하게 공급하는데 도움이 될 수 있을 것으로 판단된다.