EFFECTS OF DIETARY CELLULOSE LEVEL ON GROWTH PERFORMANCE DEVELOPMENT OF INTERNAL ORGANS, ENERGY AND NITROGEN UTILIZATION AND LIPID CONTENTS OF GROWING CHICKS

Siri, S.,Tobioka, H.,Tasaki, I. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2

In order to determine the effect of dietary cellulose levels on chick performance, 1-week-old White Leghorn male chicks were fed semi-purified diets containing either 5%, 10%, 15% or 20% cellulose for 3 weeks. All diets were iso-nitrogenous and iso-caloric. Feed intake and body weight were increased as the cellulose level was increased. Feed conversion was lower in the 5% cellulose diet than in the other diets. Compared to the case of 10% to 20% cellulose diets, relative length (per 100 g body weight) of esophagus, duodenum, small intestine and cecum was longer, and relative weight of esophagus, duodenum and crop was also heavier in the chicks fed the 5% cellulose diet. The other internal organs were not affected by the cellulose level. The retention rates of dry matter and nitrogen were lower in the 5% cellulose group than in the other groups. Concentration of carcass phospholipids was higher in the 5% cellulose group, and that of carcass cholesterol was increased as the cellulose level increased. In conclusion, the dietary cellulose level should be more than 5% to give an adequate chick performance, and no ill effect was found even at 20% level.

EFFECTS OF DIETARY CELLULOSE LEVEL ON NUTRIENT UTILIZATION IN CHICKENS

Siri, S.,Tobioka, H.,Tasaki, I. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.4

The effects of 5%, 10%, 15% and 20% dietary cellulose levels on the nutrient utilization in chickens were investigated. Four experimental diets were alternatively given to 8 colostomized White Leghorn cockerels to make a $4{\times}4$ Latin-square design. The diets of 70 g.day were force-fed once a day, and water was given freely. The digestibilities of DM and energy increased linearly with the increase in dietary cellulose level. The digestibilities of ether extract and nitrogen-free extract were not so much influenced by the dietary cellulose level. The digestibility of acid detergent fiber was very low and not influenced by the dietary cellulose level. The digestibility of neutral detergent fiber was not different among the diets containing 5%-15% cellulose, but that of the 20% cellulose diet was diminished. This might be due to the reduction of hemicellulose digestibility. True digestibility and biological value of protein were also not influenced by the dietary cellulose level from 5% to 20%. In conclusion, no ill-effect was found even when the chicken was fed a diet containing 20% of cellulose.

EFFECTS OF DIETARY CELLULOSE AND PROTEIN LEVELS ON GROWTH PERFORMANCE, ENERGY AND NITROGEN UTILIZATION, LIPID CONTENTS AND DEVELOPMENT OF INTERNAL ORGANS IN GROWING CHICKS

Siri, S.,Tobioka, H.,Tasaki, I. Asian Australasian Association of Animal Productio 1993 Animal Bioscience Vol.6 No.2

In order to investigate the effects of dietary cellulose and protein levels on chick performance, four semi-purified diets were formulated so as to contain cellulose at levels of 5% (LC) and 20% (HC) in combination with 10% (LP) and 20% (HP) protein, and fed ad libitum to 1-week-old White Leghorn male chicks for 3 weeks. There were no significant differences in feed intake, body weight gain and feed efficiency between the LC-HP and HC-HP groups. All parameters were lower in the LP groups; the HC-LP group consumed very small amount of feed and lost body weight during the experiment. The retention rates of DM, ash, nitrogen and energy were higher in the HP than the LP groups. The triglyceride concentration of carcass was lower in the HC-LP group and that of liver was higher in the LC-LP group. The carcass total cholesterol level was higher in the HC-HP group. The relative weight of most digestive organs was higher in the HP group irrespective of the cellulose level. In conclusion, the chick performance was primarily influenced by dietary protein level, and when the chicks were fed inadequate levels of protein, the low cellulose level gave a better performance than the high cellulose level.

EFFECTS OF DIETARY CELLULOSE AND PROTEIN LEVELS ON NUTRIENT UTILIZATION IN CHICKENS

Siri, S.,Tobioka, H.,Tasaki, I. Asian Australasian Association of Animal Productio 1994 Animal Bioscience Vol.7 No.2

Effects of dietary cellulose and protein levels on nutrient utilization in chickens were investigated. Four experimental diets containing 5% (low cellulose) or 20% (high cellulose) cellulose in combination with 10% (low protein) or 20% (high protein) protein of 70 g/day were alternatively forced-fed to eight colostomized White Leghorn cockerels once a day to make $4{\times}4$ Latin-square design. The digestibilities of DM and energy decreased with the increase in cellulose level, but not affected by dietary protein level. Ether extract digestibility was higher in the high cellulose diets than in the low cellulose protein level. Ether extract digestibility was higher in the high cellulose diets than in the low cellulose diets. The digestibility of nitrogen free extract had the same trend with the digestibility of DM and energy. The digestibility of acid detergent fiber was not so much different among the diets, but the NDF digestibility was lower in the high cellulose diets than in the low cellulose diets, due to the low hemicellulose digestibility. The true digestibility of protein was influenced by both of the dietary protein and cellulose levels, and their interaction was found. The dietary protein level affected the biological value of protein but the dietary cellulose level did not, and consequently the biological value of protein in the low protein diets was lower than in the high protein diets.

Peroxiredoxins, a novel protein family in lung cancer

Lehtonen, Siri T.,Svensk, Anne-Mari,Soini, Ylermi,Pä,ä,kkö,, Paavo,Hirvikoski, Pasi,Kang, Sang Won,Sä,ily, Marjaana,Kinnula, Vuokko L. Wiley Subscription Services, Inc., A Wiley Company 2004 International journal of cancer: Journal internati Vol.111 No.4

<P>Cigarette smoke, the major risk factor for lung cancer, induces an accumulation of reactive oxygen species. These have multiple effects on cell defense, cell proliferation and cell death. Thus, compounds involved in the regulators of redox balance can be hypothesized to play a fundamental role in both carcinogenesis and tumor progression. Here, we have evaluated the expressions of all 6 peroxiredoxins (Prxs I–VI) in lung carcinomas. Prxs represent a protein family with the capability of breaking down hydrogen peroxide; thus, they can participate in cellular antioxidant defense, regulate cell proliferation and increase drug resistance of cultured cells. Altogether 92 cases were investigated by immunohistochemistry, including 32 adenocarcinomas, 45 squamous cell, 9 small cell and 6 other carcinomas. Additionally, 11 cases with adenocarcinoma or squamous cell carcinoma were studied by Western analysis and/or by RT-PCR. Prxs I, II, IV and VI were particularly elevated in lung carcinomas as assessed by immunohistochemistry and/or RT-PCR. Western analysis revealed that Prxs I and IV were significantly elevated in tumors compared to nonmalignant tissue (p = 0.04 and 0.002, respectively). There were remarkable variations in Prx expression in various tumor subtypes, the most striking being Prx IV expression, which was mainly associated with adenocarcinoma. Elevated Prx VI expression was associated with high-grade squamous cell carcinoma (p = 0.03) and Prx II expression, with advanced tumor stage (p = 0.01). Our results suggest that Prxs may have effects on the progression of lung cancer. © 2004 Wiley-Liss, Inc.</P>

Antecedents of IoT adoption in food supply chain quality management: an integrative model

Pakorn Opasvitayarux,Siri-on Setamanit,Nuttapol Assarut,Krisana Visamitanan 인하대학교 정석물류통상연구원 2022 JOURNAL OF INTERNATIONAL LOGISTICS AND TRADE Vol.20 No.3

Purpose – The introduction of quality management Internet of things (QM IoT) can help food supply chain members to enhance real-time visibility, quality, safety and efficiency of products and processes. Current literature indicates three main research gaps, including a lack of studies inQMIoT in the food supply chain, the vagueness of integrative adoption of new technology framework and deficient research covering both adoption attitude and intention in the same model. This study aims to propose an analysis model based on the technological–organizational–environmental (TOE) framework and reinforced by the collaborative structure to capture the importance of the supply chain network. Design/methodology/approach – The partial least square-structural equation modeling (PLS-SEM) was applied to test the impacts of the adoption factors on QM IoT adoption attitude and intention among 197 respondents in food manufacturing in Thailand. Findings – The results indicated that compatibility, trialability, adaptive capacity, innovative capability, executive support, value chain partner pressure, presence of service provider and information sharing significantly impacted the attitude toward QM IoT adoption, while adaptive capability, innovative capability and information sharing directly influenced the QM IoT adoption intention. Furthermore, the attitude toward QM IoT adoption positively impacted the QM IoT adoption intention. Practical implications – This study contributed to academicians by proposing a more solid adoption framework for QM IoT area. In addition, the business practitioners could actively prepare themselves for the QM IoT adoption, whereas the service providers could provide better and suitable service. Originality/value – This research contributes to the building of a more solid framework and indicates significant factors that impact the attitude toward QM IoT adoption and adoption intention.

Changes of Soil Properties during Podzol Development in S Norway

Daniela Sauer,Siri Svendgard-Stokke,Ragnhild Sperstad,Rolf Sørensen,Markus Fuchs 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Antecedents of IoT adoption in food supply chain quality management: an integrative model

Pakorn Opasvitayarux,Siri-on Setamanit,Nuttapol Assarut,Krisana Visamitanan 인하대학교 정석물류통상연구원 2022 JOURNAL OF INTERNATIONAL LOGISTICS AND TRADE Vol.20 No.3

Forest management planning technology issues posed by climate change

Pete Bettinger,Jacek Siry,Krista Merry 한국산림과학회 2013 Forest Science And Technology Vol.9 No.1

Given the widespread attention paid to global climate change over the last decade or so, a potential need has arisen to develop forest management plans for broad areas that address vulnerabilities and complexities in the environment with respect to potential changes in air temperature and precipitation patterns. These planning issues include recognizing potential range shifts in forest vegetation, changes in land uses, and changes in the growth and yield of forest tree species, particularly along the leading or trailing edges of the shifting ranges. In addition to assessing traditional forestry concerns (production, sustainability, fragmentation, and ecosystem health), planning processes will likely one day incorporate natural disturbance regimes and the impacts of invasive species. As these are often unpredictable events, planning processes will therefore probably have numerous stochastic processes that suggest the use of simulation models rather than the more popular deterministic mathematical programming models that are often used in forest planning today (e.g. linear programming). This review examines the changes that have occurred in forest planning since 2009, when a set of challenges facing forest planning, with respect to potential changes in the climate, were posed. We noted through a review of the literature that some areas of concern have received considerable attention of late (shifts in vegetation patterns, assessments of carbon sequestration, disaggregation of global climate model results), while other areas (e.g. natural disturbance modeling) have received less attention. These results relate directly to the use of concepts in forest planning rather than theoretical advancements along different lines of inquiry; therefore there may be some lag time involved in transitioning from theory to practice.

Evaluation of the Performance in Charging Efficiencies and Losses of Ultrafine Particles Ranging in Sizes from 15 to 75 nm in a Unipolar Corona-based Ionizer

Intra Panich,Wanusbodeepaisarn Paisarn,Siri-achawawath Thanesvorn 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.2

For this study, a unipolar corona-based ionizer was constructed and experimentally evaluated for charging effi ciencies and losses of ultrafi ne particles in the size range of 15–75 nm at diff erent corona voltage, ion trap voltage and particle fl ow rate. The corona voltage was applied to the ionizer between 2.0–3.0 kV. The discharge currents increased from 0.16 nA to 4.23 μA and the ion number concentration increased from 6.27 × 10 9 to 1.36 × 10 14 ions/m 3 . Increasing the corona voltage lead to a higher discharge current and ion number concentration in the ionizer. The best intrinsic charging effi ciency of the ionizer was about 92.15–99.33% for particle diameters ranging from 15 to 75 nm, and occurred at corona voltage, ion trap voltage and particle fl ow rate of about 3.0 kV, 100 V, 0.6 L/min, respectively. At a given corona voltage, the extrinsic charging effi ciency increased as the particle fl ow rate increased. The best extrinsic charging effi ciency ranged from 14.93 to 57.70% for particle diameters increasing from 15 to 75 nm, and occurred at corona voltage, ion trap voltage and particle fl ow rate of about 2.6 kV, 100 V, and 1.5 L/min, respectively. In the present ionizer, the highest electrostatic loss was observed for particles with a diameter of about 45 nm, and it was about 88.03% at a corona voltage of 3.0 kV and an ion trap voltage of 200 V. Finally, the highest diff usion loss of about 22.66% was seen to occur with singly charged particles with a diameter of 15 nm at the particle fl ow rate of about 0.6 L/min.