• Title/Summary/Keyword: mixed feeding

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Enteric methane emissions, energy partitioning, and energetic efficiency of zebu beef cattle fed total mixed ration silage

  • Subepang, Sayan;Suzuki, Tomoyuki;Phonbumrung, Thamrongsak;Sommart, Kritapon
    • Asian-Australasian Journal of Animal Sciences
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    • v.32 no.4
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    • pp.548-555
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    • 2019
  • Objective: The main objective of this study was to evaluate the effect of different feeding levels of a total mixed ration silage-based diet on feed intake, total tract digestion, enteric methane emissions, and energy partitioning in two beef cattle genotypes. Methods: Six mature bulls (three Thai natives, and three Thai natives - Charolais crossbreeds) were assigned in a replicated $3{\times}3$ Latin square design, with cattle breed genotype in separate squares, three periods of 21 days, and three energy feeding above maintenance levels (1.1, 1.5, and 2.0 MEm, where MEm is metabolizable energy requirement for maintenance). Bulls were placed in a metabolic cage equipped with a ventilated head box respiration system to evaluate digestibility, record respiration gases, and determine energy balance. Results: Increasing the feeding level had no significant effect on digestibility but drastically reduced the enteric methane emission rate (p<0.05). Increasing the feeding level also significantly increased the energy retention and utilization efficiency (p<0.01). The Thai native cattle had greater enteric methane emission rate, digestibility, and energy utilization efficiency than the Charolais crossbred cattle (p<0.05). The daily metabolizable energy requirement for maintenance in Thai native cattle ($388kJ/kg\;BW^{0.75}$, where $BW^{0.75}$ is metabolic body weight) was 15% less than that in Charolais crossbred cattle ($444kJ/kg\;BW^{0.75}$). Conclusion: Our results suggested that the greater feeding level in zebu beef cattle fed above maintenance levels resulted in improved energy retention and utilization efficiency because of the reduction in enteric methane energy loss. The results also indicated higher efficiency of metabolisable energy utilization for growth and a lower energy requirement for maintenance in Bos indicus than in Bos taurus.

A Study on the Nutrient Intakes and Supplemental Food of Infants in Relation to the Method of Feeding Practics (영양공급형태에 따른 영아의 영양소 섭취와 보충식 실태에 관한 연구)

  • 오기화
    • Journal of Nutrition and Health
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    • v.29 no.2
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    • pp.143-152
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    • 1996
  • The surveys of food intakes were carried out on 49 healthy infants aged 4-9 months at the first interview and repeated 3 more times at the interval of 2 months by using food diary recorded by their mothers. Of the subjects 12 were breast-fed, 28, formula-fed, and 9, mixed type-fed. Foods introduced first as the weaning food were commercial weaning foods, fruit juices, yoghurt, egg and rice. Supplemental food was introduced at the age of 4 months in 57% of the infants, but it amounted to a significant proportion of overall food consumption from the age of 6 months. The levels of nutrients except energy, iron and niacin were similar or in excess of RDA, and breast-fed infants tended to have lower intakes of energy and protein compared to infants formula-fed or mixed type-fed. Average intakes of vitamin A, vitamin B1, vitamin B2, vitamin C and calcium were above RDA, but iron intake did not meet RDA of infants of all ages. In conclusion, the average status of nutrient intakes of infants was fairly good, however, food consumption besides milk was less in breast-fed infants than in formula-fed infants, and iron status seemed to be poor, Although it is well-known that breast-milk compared to formulas is more beneficial for infants, mothers feeding breast-milk to their infants should be educated for the importance of supplemental food and its practice to support good nutrition.

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Effects of Red Pepper Seed Oil Meal Supplementation on Performance and Abdominal Fat Accumulation in Broilers (고추씨박 급여가 육계의 발육 및 복강지방 축적에 미치는 영향)

  • 김학규;나재천;최철환;상병돈;이상진
    • Korean Journal of Poultry Science
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    • v.26 no.1
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    • pp.51-56
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    • 1999
  • This experiment was conducted to determine the effect of dietary red pepper seed oil meal (RPSOM) on the performance and the fat pad content in broiler chicks. feeding trial was conducted with 360 birds broiler chicks for 8 weeks. The levels of dietary RPSOM were 0, 5, 10 and 15% and mixed in diet consisting of corn and soybean meal. Body weight, feed intake, feed conversion and mixed in diet consisting of corn and soybean meal. Body weight, feed intake, feed conversion and viability were not significantly different among treatments. The percentage of abdominal fat and skin color were not significantly differents among treatments. The results of the feeding trial show that RPSOM can be used within 10% in broiler diet.

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Primiparas' Perceptions of their Newborns related to Feeding Methods (수유 형태에 따른 초산모의 신생아에 대한 지각 비교)

  • Lee Ae Ran;Park Mun Hee
    • Child Health Nursing Research
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    • v.1 no.1
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    • pp.16-25
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    • 1995
  • The purpose of this study was to estimate primiparas' perceptions of their newborns and compare the changes of their perceptions related to feeding methods between the time I (post-partum 2nd-3rd day) and the time ll (post-partum 1st month). At the time Ⅰ, bottle-feeding method was 100% because mothers were separated from their babies. At the time Ⅱ, the methods of feeding were breast-feeding(29.7%), bottle-feeding(30.7%), mixed feeding(39.6%) .The subjects of this study were 101 primiparas. Data were collected between May to October 1994, using the Neonatal Perception Inventory devised by Broussard(1963) and added by Lee Ja Hyurg(1986) .The results of this study are as follows : 1. There was no significant difference of primiparas' perceptions of their newborns according to general characteristics. 1) The younger tended to estimate that newborns were less capable, and perceived that it would be more difficult for them to take care of babies. 2) There was no difference of mothers' perceptions of their babies according to having a job or not. 3) The lower educated tended to estimate that newborns were less capable, and perceived that it would be more difficult for them to take care of babies. 2. There were some changes of primiparas' perceptions of their babies related to feeding methods between the time I (post-partum 2nd-3rd day) and the time Ⅱ (post-partum 1st month).1) At the time Ⅰ, Breast-feeding mothers estimated that newborns were less capable, and perceived that it would be more difficult for them to take care of babies. But they showed positive perceptions at the time Ⅱ (P<0.05, p<0.1) 2) At the time Ⅰ, Bottle-feeding mothers tended to estimate that newborns were more capable, and perceived that it would be more easy for them to take care of babies. But they showed negative perceptions at the time Ⅱ 3) For breast-feeding mothers, positive-positive group was 53%, positive-negative group was 20%, negative-positive group was 10%, negative-negative group was 17%. For bottle-feeding mothers, positive-positive group was 55%, positive-negative group was 32%, negative-positive group was 10%, negative-negative group was 3%.

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A Study on Factors Related to the Practice of Breast-feeding (모유수유 실천과 관련 요인)

  • 박천만
    • Korean Journal of Health Education and Promotion
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    • v.19 no.2
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    • pp.23-43
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    • 2002
  • Purpose: The purpose of this study is to examine and analyse factors related to the actual status and practice of breast-feeding during an infant period to grasp elements detrimental to breast-feeding and, therefore, provide basic information useful for its effective practice and encouragement. Method: From April 1 to June 30, 2001, this study was carried out with the mothers of 337 who were 6 months old, as of the surveyed date, of infants born in 2002 and registered in Seongju-gun Public Health Center, Gyeongsangbug-do Province. The method for its survey included both of the visiting and telephone interviews, and questions were mainly about the mothers' general characteristics(3 questions), infants' general characteristics(3 questions), environmental characteristics of infant delivery( 4 questions), support to breast-feeding(4 questions), understanding of breast-feeding(5 questions), and feeding type during the 1 to 6-month period after birth. Result: 1. The feeding type during the I-month period after birth showed that the breast-feeding accounted for 42.4%, which was higher than dry milk-feeding(30%) or mixed milk-feeding(26.8%). However, it began to be lower than the dry milk-feeding from the 2-month period after birth. During the 6-month period, the breast-feeding accounted for 28.6% which was lower than 56.5% of the dry milk-feeding. 2. The mothers who were encouraged by their delivery clinic to and were educated to breast-feed infants accounted for 55.4% and 41.4%, respectively, which were relatively low. The understanding of breast-feeding indicated that the responses were positive from the view point of mother & infant health, but negative from mother's physical form. 3. It was shown that the lower the educational background of mother(p〈0.05) and the higher the unemployment of mother(p〈0.001), the higher the positive understanding of breast-feeding, and that the higher the entire support to breast-feeding, the more positive their understanding. 4. It was also shown that the lower the educational background of mother(p〈0.05), the higher the unemployment of mother(p〈0.001), the more the experience in breast-feeding at a delivery clinic(p〈0.01) and the faster the initial feeding(p〈0.001), the higher the rate of breast-feeding. 5. The factor having an effect on breast-feeding included a delivery clinic's encouragement to breast-feed(p〈0.001), understanding of breast-feeding(p〈0.01), father's comment on feeding method(p〈0.05) and mother's employment(p〈0.05). Discussion: In order to encourage the breast-feeding, as shown above, it is required, fist of all, to offer pregnant women an education about importance and excellence of breast-feeding and its appropriate method before delivery in advance to result in a positive comprehension of the breast-feeding. To do that, both the publicity activities and program development designed to encourage the breast-feeding must be performed in advance at the government level. In addition to that, the mother-infant space as ‘rooming-in’ available for breast-feeding immediately after delivery must be prepared on the basis of legal and administrative support. Finally, female employees' leave after childbirth must be performed for the purpose of productive welfare and circumstances also be prepared for breast-feeding, such as a children's home at work.

Effects of Feeding Condensed Tannin-containing Plants on Natural Coccidian Infection in Goats

  • Hur, Sam N.;Molan, Abdul L.;Cha, Jang O.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.9
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    • pp.1262-1266
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    • 2005
  • Twelve Korean native goats, spontaneously infected with mixed species of Eimeria were used to study the possible direct anticoccidial effect of feeding condensed tannin-containing plants on the production of Eimeria oocysts. The effects of feeding pine (Pinus densifora) needles, oak (Quercus acutissima) leaves and lucerne chaff on coccidia oocyst output were studied for a period of 10 days post-feeding. The results indicate that feeding fresh pine needles (40 g condensed tannins (CT) dry matter (DM)/day/goat) and oak leaves (40 g CT DM/day/goat) in combination with lucerne chaff had rapid anticoccidial activities in goats as demonstrated by a sharp decrease in oocyst production. Two days after feeding, the numbers of oocysts per gram of faeces (OPG) from the goats fed pine needles with lucerne chaff, and from goats fed oak leaves reduced by 40% and 44% compared to pre-feeding, respectively. On the sixth day after commencing feeding pine needles and oak leaves, the reduction was 81% and 72%, respectively. Ten days after feeding pine needles and oak leaves, the OPG was reduced by 93% and 85%, respectively compared to pre-feeding. Statistical analysis showed that feeding pine needles and oak leaves to goats naturally infected with coccidia significantly (p<0.001) reduced the numbers of oocysts compared to the control group fed lucerne chaff only. Four clinically important species of coccidia, Eimeria parva, Eimeria ninakohlyakimovae, Eimeria christenseni and Eimeria arloingi were identified in Korean native goats.

Solid Foods Intake Pattern During the First 6 Months of Life (영아 전반기 영양공급방법에 따른 이유보충식의 섭취 양상)

  • 배현숙;안홍석
    • Korean Journal of Community Nutrition
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    • v.1 no.3
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    • pp.335-345
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    • 1996
  • The solids(supplementary food) consumption of 200 healthy infants aged from 4 to 6 months have been measured. Five groups were assigned to different feeding patterns. Breastfed group(BF, n=38), formula-fed group(FF, n=102) and mixed-fed group(MF, n=14) were fed breast milk, formula and mixed(breast mile+formula) from birth until 6 months of age respectively. Convert 1 group(C1F, n=14) and convert 2 group(C2F, n=32) were fed breast milk and mixed milk at 2 months of age respectively and were switched to formula thereafter. All infants received solids form 4 months of age. The energy intake from solids at 4 and 6 months averaged 59.1 and 110.3㎉/d among BF groups vs 151.9 and 239.3㎉/d among FF groups respectively. Intakes of protein, calcium and iron were 38-46$\%$, 34-44% and 25-37$\%$ higher in the FF than in the Bf group during the first 6 months. However, no significant differences were found in the intakes of energy and nutrient intakes from solids in all 4 groups excluding BF group(39$\%$). Although BF infant's nutrient intakes from solids were lower than other group's intakes, they intaked evenly solids from various food groups. As the age of infant had increased, the energy intake ratio from solids was cereals and dairy products was increased whereas energy intake ratio from meats, eggs, fruits and vegetables was decreased. TSC4, TSC6(the frequency score for the kinds of weaning food taken) showed no significant difference among 5 feeding groups but CIF-and C2F group's scores tended to be high. Consequently, these results suggest that BF group's solid intake pattern is more desirable and that Korean lactating Mother's dependence on commercial weaning food is too high.

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Effects of Shanshuyu (Cornus Officinalis Sieb) tea and Market teas feeding on the Hematology end Liver Function of Rat (산수유 및 차류식이(茶類食餌)가 흰쥐의 간기능과 혈액상(血液像)에 미치는 영향)

  • Joo, Hyun-Kyu;Jang, Dae-Ja
    • Journal of the Korean Society of Food Culture
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    • v.4 no.3
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    • pp.257-264
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    • 1989
  • This study was conducted to develop the Korean traditional tea and investigate the effects of Shan-shu-yu, Gugiga, Ginseng, Younggi and coffee on the hematology of rat. Gugiga, Shan-shu-yu, Younggi and Ginseng tea were adimistrated 3g/day/rat with feeding, respectively. Coffee was adminstrated 1.8g/day/rat. The mixing ratio of mixed tea were 1:1 (w/w). According to the feeding days (10, 20, 30), enzyme activities and chemical components in serum and change in whole blood were determined. 1. The activities of s-GOT and s-GPT of rat administrated Shan-shu-yu, Young-gi, Gugiga, Ginseng and their mixed tea were increased at the normal ranges, and coffee and it's mixed tea were significantly increased other, group (p<0.05). 2. In coffee and it's mixture groups, the content of s-glucose and s-cholesterol were remarkably increased (p<0.05), but in others (except coffee additive group) were decreased than coffee and it's mixture groups. 3. In all groups (except coffee addivite groups), the range of WBC, RBC, Ht and Hb was 7.30-8.00 $({\times}10^3/mm^3)$, 8.18-9.00 ($({\times}10^6/mm^3)$, 50-60 (%) and 16.10-17.40 (g/d), respectively and in strict coffee group, the level of WBC, RBC, Ht and Hb was $8.90{\pm}0.40$, $8.10{\pm}0.37$, $49{\pm}0.38$ and $14.90{\pm}0.44$ (p<0.05), respectively.

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The Effects of Total Mixed Ration Feeding with High Roughage Content on Growth Performance, Carcass Characteristics, and Meat Quality of Hanwoo Steers

  • Ku, Min Jung;Mamuad, Lovelia;Nam, Ki Chang;Cho, Yong Il;Kim, Seon Ho;Choi, Young Sun;Lee, Sang Suk
    • Food Science of Animal Resources
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    • v.41 no.1
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    • pp.45-58
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    • 2021
  • This study investigated the dietary effect of total mixed ration (TMR) based on high roughage content on the growth performance, carcass characteristics, and meat quality of Hanwoo steers. Twenty-four Hanwoo steers (average body weight, 195.3±4.7 kg; age, 8.5 mon) were randomly allocated to three experimental groups according to forage and concentrate ratio (DM basis): 25:75 (control), 50:50 (T50), and 70:30 (T70). Productivity in the fattening period and final body weight were significantly higher in the control. Average daily gain and feed conversion ratio were the same among treatments. Serum parameters, cholesterol, blood urea nitrogen, and total protein were higher in the control. Carcass weight was comparable in the control and T50 but feeding more roughage was significantly correlated with a higher intramuscular fat. Shear strength and drip loss were higher while n-6/n-3 was lower in T70 compared to the other groups. However, meat color was not significantly different among treatments. In terms of free amino acid contents, glutamic acid and glycine were higher in the control than T50 and T70. Overall, feeding Hanwoo steers with high forage content TMR had the lowest n-6/n-3 ratio of fatty acid content but highest intramuscular fat, shear strength, and drip loss. High forage content TMR is the best feed for Hanwoo steers that gives more benefits for human health and consumption but also provides the best meat grade and quality, which is important in the beef market in Korea.