• Asian-Australasian Journal of Animal Sciences
• /
• 제25권4호
• /
• pp.486-495
• /
• 2012

Twenty four periparturient cows were used to determine the effects of DCAD on acid-base balance, plasma and urine mineral concentrations, health status, and subsequent lactation performance. Each group of 12 cows received either a diet containing -100 DCAD or +100 DCAD for 21 d prepartum. Both anionic and cationic groups were divided into two groups, one received a +200 DCAD and the other +400 DCAD diet for 60 d postpartum. Prepartum reduction of DCAD decreased DMI, urinary and blood pH, urinary concentrations of Na or K and increased plasma and urinary Ca, Mg, Cl and S. Also cows fed -100 DCAD diet consumed the most dry matter in the first 60 d after calving. Postpartum +400 DCAD increased milk fat and total solid percentages, urinary and blood pH and urinary Na and K concentrations, but urinary Ca, P, Cl and S contents decreased. Greater DMI, FCM yields were observed in cows fed a diet of +400 DCAD than +200 DCAD. No case of milk fever occurred for any diets but feeding with a negative DCAD diet reduced placenta expulsion time. In conclusion, feeding negative DCAD in late gestation period and high DCAD in early lactation improves performance and productivity of dairy cows.

• Asian-Australasian Journal of Animal Sciences
• /
• 제33권1호
• /
• pp.35-43
• /
• 2020

Objective: The aim of this research was to evaluate the effect of different concentrate levels in diets based on cactus Opuntia Stricta (Haw.) Haw cladodes on the performance of lactating Girolando cows. Methods: The experiment involved 10 Girolando multiparous dairy cows at 512.6 kg of body weight (BW) and producing 13.2 kg milk/d, allocated into two 5×5 Latin squares. The experimental treatments consisted of control diet composed by cactus Nopalea cochenillifera. Salm-Dyck. cladodes (Nopalea), forage sorghum silage and concentrate at 20% on dry matter (DM) basis, and four concentrate levels diets (20%, 24%, 28%, and 32%) plus cactus Opuntia stricta (Haw.) Haw. cladodes (Opuntia) and forage sorghum silage. Results: Regarding cows fed control diet, the nutrients intake were greater than for cows fed with cactus Opuntia and concentrate. Regarding concentrate levels, intakes of DM, organic matter (OM), crude protein (CP), non-fiber carbohydrates (NFC), and total digestible nutrients of cows increased linearly. Organic matter, CP, and NDF digestibilities were similar in between to control diet and cactus Opuntia-based diets. The digestibility of NFC increased linearly when the concentrate was inserted. The N balance was the same for control diet and cactus Opuntia-based diets, irrespective the concentrate levels. Conclusion: For cows producing 14 kg/d with 3.5% of fat, it is recommended 32% of concentrate to be included in cactus Opuntia-based diets, and the increase in concentrate level promotes a linear increase in milk yield.

• Nutrition Research and Practice
• /
• 제6권5호
• /
• pp.429-435
• /
• 2012

Atopic dermatitis (AD) has become a serious epidemic in Korean children. We aimed to investigate the association between vitamin C, E and other nutrients, and serum total IgE/specific IgE levels in children with AD. A total of 119 children (0-24 mo) diagnosed with AD were recruited for this cross-sectional study from a medical center in Seoul. A 24 h recall was used to assess dietary intakes. Serum total and six food-allergen specific IgE levels were measured by CAP-FEIA. Serum vitamin E was also measured but only in 25 out of the total 119 participants. Multiple linear regression analysis was performed to estimate the coefficients between serum IgE levels and dietary intake as well as serum vitamin E. Serum vitamin E levels showed a significantly inverse association with serum total IgE and all specific IgE levels (P < 0.05). Fat intake was inversely related with specific-IgEs for egg whites, milk, buck wheat, soy, and peanuts (P < 0.05). Positive associations were found between carbohydrate (CHO) intake and total IgE and specific IgEs to egg whites, milk, soy, and peanuts (P < 0.05). Vitamin C, E and n-3/n-6 fatty acids were not related with serum total IgE and specific IgE levels except for the association between buck wheat and vitamin E. In addition, there were no significant differences between males and females in dietary intake and serum IgE levels by student's t-test. Although dietary vitamin E showed no association with serum IgE levels, serum vitamin E drew a significant inverse relationship with serum IgE levels. The evidence seems to suggest that vitamin E may possibly lower total and specific-IgEs in children with AD, and that it is important to maintain a relatively high serum vitamin E level in children with AD.

• 대한한방소아과학회지
• /
• 제13권2호
• /
• pp.41-77
• /
• 1999

The purpose of this research is that infant artificial feeding products is used in clonic with the study on characteristic, ingredients and indication of geneal and special modified milks. The result is as follows. 1. The main ingredients of four company products-Maeil , Namyang, Pasteur, Aebout is similar but the functional is different 2. General infant formula is divided into 100days, 5-6months, 12months, 24months and 36months out of consideration for growth and development of infant. 3. The indication and sorts of the special infant formula used at a hospital is as follows. PKU-1, PKU-2 formula is available for phenylketonuria. MPA formula is available for propionic acidemia and methylmalonic acidomia. UCD is available for urea cycle disorder Leucine-free formula is available for isovaleric acidemia. Maeil LP is available for hypocalcemia. MCT formula is available for indigestion and malabsorption of fat. BCAA-free formula is available for Maple syrup urine disease. Protein-free formula is available for limit of protein uptake or mixture of peculiar amino acid or higher uptake of mineral, vitamin, calory. Methionine-free formula is available for homocystinuria and hypermethioninemia. Premature infant is available for premature and low birth weight. 4. The special infant formula published in nation is as follows. Maeil soy A, Maeil MF1, Namyang hope doctor and Maeil HA is available for diarrhea. Maeil HA, Maeil HA-21 and Namyang hope allergy is available for hypoallergy. Maeil soy A is available for diarrhea of milk allergy. Maeil MF1 or Namyang hope doctor is available for acute bacterial or viral temporal diarrhea. Maeil HA is available for allergic chronic diarrhea. Maeil HA and Namyang hope allergy as eHP-formula is available for chronic diarrhea for lactose intolerance and milk allergy. Maeil-21 as pHP-formula for neonates with allergy family, allergic symptoms such as atopic dermatitis, asthma except digestive system.

• Journal of Animal Science and Technology
• /
• 제55권2호
• /
• pp.81-85
• /
• 2013

This experiment was conducted to investigate the effects of lactation records in Holstein dairy cattle on the selection rates using a total of 341,436 test records from 113, 812 heads of cattle from first to third lactation. Heritabilities for milk, fat, and protein yields were highest at first lactation (0.28, 0.24, and 0.27, respectively), and decreased to 0.14, 0.15, and 0.13 at third lactation. For the milk yields, phenotypic correlations between first and second lactation, first and third lactation, and second and third lactation were low (0.49, 0.39, and 0.47, respectively), while genetic correlations among consecutive lactations and between second and third were above 0.8 and 0.9. In Model I, of the 1,138 heads the top 1% were selected based on first lactation records, only 32.4% (396 heads) were re-selected when the second lactation records were included and the 67.6% (769 heads) were newly selected animals. While in Model II, 85.1% (1,138 heads) of the animals which were selected as the top 1% on the basis of first and second lactation records were included. A multiple trait evaluation method using multiple lactation records is more desirable than a single trait evaluation method using first lactation records only.

• 한국식품과학회지
• /
• 제21권3호
• /
• pp.441-445
• /
• 1989

인삼엽 단백질의 식량화를 위하여 엽단백질 농축물(LPC)을 조제하여 그 아미노산 조성과 인공소화율을 검토하였다. 인삼엽을 $-20^{\circ}C$ 냉아세톤으로 처리하고 0.2% NaOH(0.5% SDS, 0.5% 2-ME 함유)로 단백질을 추출하며 인삼 LPC를 얻었다. 인삼 LPC의 일반성분으로는 지방과 회분이 1% 미만이었고 단백질은 75% 내외로 많았으며 총 당은 약 5% 이었다. 총 사포닌 함량은 약 1.2%이고 panaxadiol과 panaxatriol의 비는 1.67이었다. 아미노산 조성은 aspartic acid의 함량이 약 13.4%로 가장 많았으며 methionine의 함량은 매우 낮았다. 필수아미노산토 고루 들어 있었고 총 아미노산에 대한 필수아미노산은 54.5%이였고 E/T ratio는 3.02이었다. LPC의 제 1제한아미노산은 함황아미노산이고, 그 amino acid score는 43.1이었다. Pepsin및 trypsin을 사용한 인삼 LPC의 소화율은 비교단백질인 milk casein에 비하며 낮았다.

• Journal of Biosystems Engineering
• /
• 제27권5호
• /
• pp.433-450
• /
• 2002

The daily food intake for dairy cows has to be effectively controlled to breed a sound group of cows as well as to enhance the productivity of the cows. But, feed stuffs are fed in the common bulk for a group of cows in most cases despite that the individual food intake has to be varied. To obtain the feed for each cow, both the nutrient requirements and the nutrient composition of fred have to be provided in advance, which are based on the status of cows such as weigh marginal weight amount of milk, fat concentration in milk, growth and milking stages, and rough feed ratio, etc. Then, the mixed ration fur diet would be computed by the nutrient requirements constraints. However, when TMR (Total Mixed Ration) is conventionally supplied for a group of cows, it is almost impossible to get an optimal feed mixed ration meeting the nutrient requirements of each individual cow since the constraints are usually conflicting and over-constrained although they are linear. Hence, addressed in this paper is a simulated annealing (SA) technique to find the food intake for dairy cows, considering the characteristics of individual or grouped cows. Appropriate parameters fur the successful working of SA are determined through preliminary experiments. The parameters include initial temperature, epoch length. cooling scheduling, and stopping criteria. In addition, a neighborhood solution generation method for the effective improvement of solutions is presented. Experimental results show that the final solution for the mixture of feed fits the rough feed ratio and some other nutrient requirements such as rough fiber, acid detergent fiber, and neutral detergent fiber, with 100 percent, while fulfilling net energy for lactating, metabolic energy, total digestible nutrients, crude protein, and undegraded intake protein within average five percent.

• 한국축산식품학회지
• /
• 제23권2호
• /
• pp.155-160
• /
• 2003

인유 초유로부터 지방을 제거하여 skim milk을 얻었다. 이것을 ultrafiltration을 한 후 gel filtration을 거쳐 EGF fraction 을 획득하였으며, 이를 SDS-PAGE로 확인하였다. hish performance liquid chromatography(HPLC)에 의해 EGF fraction을 분석한 결과, standard EGF 분석과 비교했을 때 31.545분대와 유사한 31.185분대에 peak가 나타난 것을 인하였다. 분리한 fraction 중 EGF 함유량을 측정하기 위해 immunoassay를 실시한 결과 건조중량 10 mg/mL 중에 약 10ng의 EGF가 포함되어 있는 것으로 측정되었다. SDS- PAGE후 실시한 western blot을 통하여 분리한 분획의 분리도를 확인하였다. 세포성장에 미치는 영향을 살펴본 결과, fibroblast cell인 BALB/3T3의 경우에는 건조중량 1 mg/mL 농도의 fraction 처리후 약 95%의 성장률을 보였으며, epithelial cell 인 IEC-6의 경우에는 약 71%의 성장률을 보였다.

• 대한지역사회영양학회지
• /
• 제7권2호
• /
• pp.156-166
• /
• 2002

The object of this study was done to assert the dietary habits, food intake, and dietary attitudes of 332 middle school students in a small city. The subject were divided into doe groups based on weight length index (WLI). Anthropometric data showed that the mean height and weight were 169.5 $\pm 8.2 cm and 55.1 $\pm 11.5 kg in the male students and 158.9 $\pm 5.9 cm and 48.1 $\pm 7.6 kg in the female students. The mean WLIs for male and female students were 103.0 $\pm 19.7 and 96.3 $\pm 12.8, respectively. Of the male students 27.9% and of the female students 32.1% were underweight, and of the male students 28.9% and of the female students 13.0% were overweight based on WLI index. Lack of good dietary habits in the overweight group tended to be the highest, the normal group was the second highest, and the underweight group was the lowest. The regularity of eating breakfast and flood prejudice scores in the overweight group were significantly higher than those in the normal and underweight group. With respect to flood intake, the normal group tended to consume grains, yellow or green vegetables, vegetables with light color, fruits, milk, yogurt, cheese, seaweeds, fat-floods, instant floods, sweet floods, carbonated drinks, and spicy and salty floods more frequently. The underweight group tended to consume meat-ham, eggs, fish and fried, stir-fried flood more frequently In dietary attitudes, the overweight group tended to have more favorable dietary attitudes, and the normal group tended to have negative dietary attitudes. The underweight group showed more negative responses to trying to eat/drink milk, yogurt, or cheese everyday than the overweight groups. It might be suggested that more effective nutritional programs should be developed and implemented to ensure good dietary habits in middle school students, including the overweight, as well as the underweight group. Further research on the comparison of dietary characteristics is needed, with consideration of the subjects WLI.

• 대한지역사회영양학회지
• /
• 제8권5호
• /
• pp.699-707
• /
• 2003

This study examined the effectiveness of two commonly used dietary assessment methods (the 24-hour recall and the food frequency questionnaire) in the epidemiological investigations of health-related habits and degenerative diseases. This cross sectional project in the Seoul area was conducted for the purpose of establishing cohort subjects and collecting reliable nutrient intake data for a further large-scale cross sectional study. The subjects were 91 volunteers from the Seoul area with a mean age of 53.5 \pm 9.6 for the males and 52.2 \pm 8.9 for the females. The subjects had a relatively high educational background, were from high socioeconomic levels, and were greatly concerned about healthrelated life styles. There was a significantly negative correlation between their smoking and their nutrient intake. Their drinking habits, their self-estimated health status and their concern or stress about being healthy did not have any influence on their nutrient intakes. Skipping meals was the most undesirable dietary habit influencing their nutrient intakes, and the next was their irregularity of eating meals. The subjects who liked legumes and fish had higher intakes of iron and niacin and those who liked milk and dairy products had higher intakes of calcium, vitamin \B_2 and fat. The subjects who considered themselves not to be healthy consumed higher amounts of fish and shell-fish, and those who considered themselves to be healthy consumed higher amounts of vegetables. The smokers consumed less fruits than non-smokers, but there was no correlation between their drinking and consumption of the food groups. There was no correlation between their food consumption frequency and their skipping meals or meal irregularity. There were positive correlations between their food likes and food consumption frequency for foods such as meat, milk and dairy products, seaweeds and fruits. Therefore, their smoking, skipping meals and meal irregularity appeared to greatly influence their nutrient intakes. Significant correlations were found between their health-related habits and their food group preferences and food frequencies. This implies that simple surveying methods using criteria such as smoking, skipping meals and meal irregularity, food group preferences and eating frequencies can be used as useful tools in the assessment of nutritional statuses.