• Title/Summary/Keyword: Head growth

Search Result 737, Processing Time 0.023 seconds

Effect of Application on the Growth of Head Lettuce under Fertigation Conditions in Highland (고랭지 결구상추의 관비재배시 돈분뇨 발효액비 시용효과)

  • 김원배;권영기;장석우;임상철
    • Korean Journal of Plant Resources
    • /
    • v.14 no.1
    • /
    • pp.84-88
    • /
    • 2001
  • The growth of leaves in field-grown head lettuce(cv. Urake) was compared after conventional application of N-P-K fertilizer or after application of various dilutions of livestock waste solution. Plants treated with livestock waste solution diluted 25 times (Ef. 25) or 50 times (Ef. 50) had greater growth than that for any other treatment. The number of leaves was greater with Ef. 25 than that with other treatments, although the increase was not statistically significant. Total head yield increased by fertigation with livestock waste solution compared to yield resulting from conventional fertilization. Plant tissue weight was increased according to the increase in concentration of applied livestock waste solution. The soil chemical properties, pH, electrical conductivity, $NH_4^+-N$, NO$_3$-N, available P exchangeable Ca and Mg, all increased with the increased application of livestock waste solution. In conclusion, fertigation of the dilute livestock waste solution on the range of Ef. 25 to Ef. 50 could improve yield and quality in head lettuce.

  • PDF

Effect on Eel Anguilla japonica and Crop Growth by the Development of a Biofloc Technology (BFT) Aquaponic System (바이오플락 기반 아쿠아포닉스 시스템 개발에 의한 뱀장어(Anguilla japonica)와 재배작물의 성장에 미치는 영향)

  • Hwang, Ju-Ae;Lee, Jeong-Ho;Park, Jun Seong;Choe, Jong Ryeol;Lee, Donggil;Kim, Hyeongsu
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.54 no.4
    • /
    • pp.418-425
    • /
    • 2021
  • The effects of an aquaponic system based on biofloc technology (BFT-AP) were analyzed for eel Anguilla japonica as aquaculture species and caipira Lactuca sativa as the cultivated crops. The rate of weight gain rate by the eels was 178% (BFT-AP 200 head) > 136% (BFT-AP 100 head) > 100% (BFT). The eel body weight in the BFT-AP (200 head) significantly increased when compared to the BFT only eel group (P<0.05). The weight of the upper layer of caipira was 91±8.5 g (200 head) > 90±8.9 g (100 head) > 48±8.3 g (Hydroponic crop, HP). The crop growth in all BFT-AP groups was higher than the control, the hydroponic group. The total ammonia nitrogen (TAN) and NO2--N concentrations decreased in the BFT-AP group when compared to the BFT group. It was possible to remove nitric acid from the aquaponics system and reuse it as eel rearing water. Although some nutrient concentrations were low in BFT when compared to HP, the nutrient concentration was sufficient for plant growth. The results show that BFT has the potentially to provide a sustainable aquaponic system.

Effects of Infant Massage on Physical Growth and Stress Response in Preterm Babies (아기마사지가 미숙아의 신체성장과 스트레스 반응에 미치는 영향)

  • Cheung, Nam-Youn;Song, Young-Shin
    • Child Health Nursing Research
    • /
    • v.15 no.1
    • /
    • pp.71-80
    • /
    • 2009
  • Purpose: This study was done to investigate the effects of an infant massage on physical growth and stress response in preterm babies. Method: A nonequivalent control group with pre-posttest design was used with 56 preterm babies in the NICU of E medical center at Daejeon. Data were collected from July 2004 to May 2005. The intervention was given for 15 minutes, once a day for 7 days. Physical growth was measured by weight, length, head circumference, and stress response was measured by serum cortisol level. Mean, %, paired-test, t-test with the SPSS/W in 16.0 program were used to analyze the data. Results: After the intervention, physical growth variables (weight, length, head circumference) in experimental group were higher than that of the control group. Also, the serum cortisol level in the experimental group was lower than that of the control group. But none of these results were not statistically significant. Conclusion: The results of this study suggest that a 7-day intervention period may not be long enough to confirm the effects of infant massage on physical growth and stress reaction. Therefore it is suggested that a longer period of infant massage should be tested to determine if it is effective in improving the physical growth and stress reduction in preterm babies.

  • PDF

Growth in Infants with Cow's Milk Protein Allergy Fed an Amino Acid-Based Formula

  • Vandenplas, Yvan;Dupont, Christophe;Eigenmann, Philippe;Heine, Ralf G.;Host, Arne;Jarvi, Anette;Kuitunen, Mikael;Mukherjee, Rajat;Ribes-Koninckx, Carmen;Szajewska, Hania;Berg, Andrea von;Zhao, Zheng-Yan
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.24 no.4
    • /
    • pp.392-402
    • /
    • 2021
  • Purpose: The present study assessed the role of an amino acid-based formula (AAF) in the growth of infants with cow's milk protein allergy (CMPA). Methods: Non-breastfed, term infants aged 0-6 months with symptoms suggestive of CMPA were recruited from 10 pediatric centers in China. After enrollment, infants were started on AAF for two weeks, followed by an open food challenge (OFC) with cow's milk-based formula (CMF). Infants with confirmed CMPA remained on AAF until 9 months of age, in conjunction with a cow's milk protein-free complementary diet. Body weight, length, and head circumference were measured at enrollment and 9 months of age. Measurements were converted to weight-for-age, length-for-age, and head circumference-for-age Z scores (WAZ, LAZ, HCAZ), based on the World Health Organization growth reference. Results: Of 254 infants (median age 16.1 weeks, 50.9% male), 218 (85.8%) were diagnosed with non-IgE-mediated CMPA, 33 (13.0%) tolerated CMF, and 3 (1.2%) did not complete the OFC. The mean WAZ decreased from 0.119 to -0.029 between birth and enrollment (p=0.067), with significant catch-up growth to 0.178 at 9 months of age (p=0.012) while being fed the AAF. There were no significant changes in LAZ (0.400 vs. 0.552; p=0.214) or HCAZ (-0.356 vs. -0.284; p=0.705) from the time of enrollment to age 9 months, suggesting normal linear and head growth velocity. Conclusion: The amino acid-based study formula, in conjunction with a cow's milk proteinfree complementary diet, supported normal growth till 9 months of age in a cohort of Chinese infants with challenge-confirmed non-IgE-mediated CMPA.

A Case of Fibromatosis of Hyphopharynx (하인두에 발생한 섬유종증 1예)

  • Seo, Jung-Ok;Lim, Ju-Shin;Bong, Jeong-Pyo;Jung, Soon-Hee;Abdul-Ghafar, Jamshid
    • Korean Journal of Head & Neck Oncology
    • /
    • v.25 no.2
    • /
    • pp.168-170
    • /
    • 2009
  • Fibromatosis is a broad group of benign fibroblastic proliferation that shows locally aggressive growth but never metastasize. Common anatomic sites include abdominal wall, extremity, and mesentery. Little is reported about clinical features and outcome of fibromatosis of the head and neck. The treatment of choice is wide excision, which is often difficult. Postoperative recurrence rates are high. We recently confirmed a unique case of fibromatosis occurred on the hypopharynx of 44-year-old male patient and report this interesting case with review of literature.

Two cases of osseous choristoma on tongue base (혀 기저부의 골성 분리종 2예)

  • Lee, Geonho;Won, Ho-Ryun;Koo, Bon-Seok;Chang, Jae Won
    • Korean Journal of Head & Neck Oncology
    • /
    • v.35 no.1
    • /
    • pp.45-48
    • /
    • 2019
  • Osseous choristoma is a rare, benign proliferative osseous lesion, which is defined as the growth of normal tissue in an abnormal location. The etiopathogenesis for its formation is unknown, but various hypotheses have been proposed. Treatment of choice is en-bloc resection, and no recurrence has been reported. Here, we report the two cases of osseous choristoma, presented with a mass on the base of the tongue with/without globus symptom and were treated with surgical excision.

Relative Growth and Squamation in Larvae and Juvenile of Cultured Larimichthys polyactis (Sciaenidae) (양식산 참조기(Larimichthys polyactis) (민어과) 자치어의 상대성장과 비늘 형성)

  • Soo-Been Kim;Jeong-Hyeon Cho;Jin-Koo Kim
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.56 no.3
    • /
    • pp.324-330
    • /
    • 2023
  • We investigated the relative growth and squamation of larvae and juveniles of cultured Larimichthys polyactis. Analysis of the relative growth of larvae and juveniles showed that their preanal length, head length, eye diameter, body depth, and snout length increased with growth. There was no significant chage in the relative growth. The ratio of preanus length to standard length (SL) increased rapidly until SL was approximately 12 mm, and then increased gradually. Cycloid scales first appeared on the lateral line, progressed to the abdominal cavity at 15.13 mm SL, and expanded to the occipital region, base of pectoral fin, and ventral region of the eye at 17.82 mm SL. At 18.03 mm SL, scales formed on the cheek, and those at the base of pectoral fin and in the abdominal cavity were connected to each other. At 19.06 mm SL, major part of the head was covered by scales, except near the lower jaw. Cycloid scales on the lateral line changed to ctenoid scales at the range of 31.71-32.24 mm SL, and those on the nape changed at the range of 69.02-70.84 mm SL. Our results may help to establish conservation and management strategy for Larimichthys polyactis aquaculture.

Effect of Massage Therapy on Growth Parameters of Instituted Infants (마사지 요법이 시설 영아의 신체성장에 미치는 영향)

  • Kim, Tae-Im
    • Child Health Nursing Research
    • /
    • v.8 no.2
    • /
    • pp.204-216
    • /
    • 2002
  • The purpose of this study was to investigate the effect of massage therapy on weight gain, length and head circumference in instituted infants. This study utilized nonequivalent control group with repeated measuring by quasi experimental design. Fifty eight instituted infants in Daejeon city were selected for the study. Fifty eight infants were randomly assigned two groups, one served as the control group and the other was experimental group to whom massage therapy was given. For the experimental group, massage protocol(developed by Field, 1986) was applied 2 times a day, mid-morning and early evening, for 4 weeks for each infants by researcher and trained research assistants. As a weight weighing instrument, electronic indicator scale (Cas Co., Korea) was used. The result of this study were summarized as follows; 1.A repeated measures ANOVA identified a significant group by time effect over the four weeks of intervention(F=14.69, p < .0001). Infants assigned to experimental group gained more weight than control group infants. 2. T-test identified that significant differences in length(t=2.60, P=.013) and head circumference(t=4.27, P=.000). Infants assigned to experimental group had more length and head circumference than control group infants. In conclusion, Massage therapy improved weight gain, length and head circumference of instituted infants. Therefore, it is recommended to utilize massage therapy as a nursing intervention for instituted infants.

  • PDF

A STUDY OF THE SUTURAL FACIAL BONE GROWTH OF RABBIT : SERIAL ROENTGENOGRAPHIC STUDY BY MEANS OF MEANS OF IMPLANTS (금속매식법(金屬埋植法)에 의(依)한 가토(家兎)의 봉합성(縫合性) 안면골성장(顔面骨成長)에 관(關)한 X-선학적(線學的) 연구(硏究))

  • Lee, Won Chul
    • The korean journal of orthodontics
    • /
    • v.9 no.1
    • /
    • pp.23-35
    • /
    • 1979
  • The present study has the purpose of investigating various growth and developmental aspects of rabbit snout with the aid of metallic implantation and of improving on the indirect method of growth and developmental studies of its skull. Sixty-eight growing albino rabbits were used. A head holder, film holder, cephalometer, metallic implanting device and implant materials were designed and constructed by the author. Eight metallic pins were implanted with a metallic implanting device in the rabbit snout under general anesthesia. Two metallic pins were implanted on each side of the interfrontal suture and another two were put on each side of the internasal suture near the frontonasal suture. Serial cephalograms were taken with a two-week interval, using the head holder, film holder and cephalometer. Eight items of linear measurement were obtained from the film. On the base of the results of the study, the following conclusions are obtained: 1. The metallic implant method is better than the other indirect methods for growth and developmental studies of the rabbit skull. 2. Most of the vertical growth of the rabbit snout is due to sutural growth at the frontonasal suture and the horizontal growth is at the interfrontal and the internasal suture. 3. The vertical growth of the rabbit snout is greater than the horizontal growth. 4. The horizontal growth of the rabbit snout is greater at the nasal bone than at the frontal bone. 5. The amount of vertical growth of the rabbit snout is almost same at inner and outer side of the interfrontal and internasal suture line, 6. Growth rate of the sutural growth of the rabbit snout tends to decrease by the growth of the rabbit. 7. Implant materials do not disturb growth and development of the rabbit snout, except a slight trauma effect during the first week of metallic implantation.

  • PDF

Modeling Effective Rainfall for Upland Crops (밭에서의 유효우량 산정모형 개발)

  • 정하우;김성준
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.35 no.1
    • /
    • pp.29-39
    • /
    • 1993
  • A model for estimating daily effective rainfall of upland crops was developed. The infiltration process was described by Green-Ampt infiltration model developed by Chu(1978). The model considers delayed surface ponding and surface detention storage under a uniform soil profile. The Green-Ampt parameters, that is, average hydraulic conductivity and average capillary pressure head on a sandy loam soil were determined from field experiment using Air-entry permeameter developed by Bouwer(1966). The model was verified by comparing measured and simulated surface runoff. The ratios of effective rainfall to total rainfall for red pepper, soybean, sesame and Chinese cabbage were evaluated using Borg's root growth model( 1986) respectively. The followings are a summary of this study results; 1.In a sandy loam soil average hydraulic conductivity was 3.28cm/hr and average capillary pressure head was 3.00cm. 2.The root growth of upland crops could be expressed by Borg's root growth model successively. 3.The measured and simulated surface runoff was agreed well with each other. 4.As the rainfall amount was increased, the ratio of effective rainfall to total rainfall was decreased exponentially till a certain growing period.

  • PDF