• 제목/요약/키워드: Inclusion Level

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Relationship between inclusion level of Vachellia tortilis leaf meal and behavioral activities of finishing pigs

  • Thabethe, Fortune;Khanyile, Mbongeni;Ncobela, Cyprial Ndumiso;Chimonyo, Michael
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권1호
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    • pp.177-185
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    • 2020
  • Objective: The study was conducted to establish a relationship between inclusion level of Vachellia tortilis (V. tortilis) leaf meal and time spent on different behavioral activities by finishing pigs. Methods: A total of forty-eight male Large White×Landrace finishing pigs with a mean (±standard deviation) body weight of 63.8±3.28 kg aged 14 wks were assigned to individual pens in a completely randomized design. Pigs were fed on diets containing 0, 30, 60, 90, 120, and 150 g/kg dry matter of V. tortilis leaf meal ad libitum with fresh water provided throughout the trial. There were eight pigs in each experimental diet. The behavior of pigs was observed for three wks twice a wk from 0600 to 1800 h using six closed circuit television cameras. Results: Increasing levels of V. tortilis leaf meal caused a linear decrease (p<0.05) in time spent eating, lying down and the number of visit to the feeder. Time spent standing and biting objects increased linearly (p<0.05) with increasing inclusion level of V. tortilis leaf meal. The was a negative linear relationship (p<0.05) between condensed tannins versus time spent eating, lying down and number of feeder visits. Condensed tannins showed a positive linear relationship (p<0.05) with time spent standing and biting objects. Neutral detergent fiber caused a linear decrease (p<0.05) in number of feeder visits, time spent eating, time spent standing. Conclusion: Inclusion level of V. tortilis leaf meal reduces time spent eating, lying down and the number of feeder visit while prolonging time spent standing and biting of objects. Condensed tannins and dietary fiber are among nutritional factors affecting behavioral activities displayed by finishing pigs.

An investigation into the effects of voids, inclusions and minor cracks on major crack propagation by using XFEM

  • Jiang, Shouyan;Du, Chengbin;Gu, Chongshi
    • Structural Engineering and Mechanics
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    • 제49권5호
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    • pp.597-618
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    • 2014
  • For the structures containing multiple discontinuities (voids, inclusions, and cracks), the simulation technologies in the framework of extended finite element method (XFEM) are discussed in details. The level set method is used for representing the location of inner discontinuous interfaces so that the mesh does not need to align with these discontinuities. Several illustrations have been given to verify that the implemented XFEM program is effective. Then, the implemented XFEM program is used to investigate the effects of the voids, inclusions, and minor cracks on the path of major crack propagation. For a plate containing cracks and voids, two possibly crack path can be observed: i) the crack propagates into the void; ii) the crack initially curves towards the void, then, the crack reorients itself and propagates along its original orientation. For a plate with a soft inclusion, the final predicted crack paths tend to close with the inclusion, and an evident difference of crack paths can be observed with different inclusion material properties. However, for a plate with a hard inclusion, the paths tend to away from the inclusion, and a slightly difference of crack paths can only be seen with different inclusion material properties. For a plate with several minor cracks, the trend of crack paths can still be described as that the crack initially curves towards these minor cracks, and then, the crack reorients itself and propagates almost horizontally along its original orientation.

The Effect of Inclusion versus Exclusion on Consideration Set Size: The Moderating Role of Chronic Indecisiveness

  • Lee, Sarah Heeju;Park, Se-Bum
    • Asia Marketing Journal
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    • 제21권1호
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    • pp.45-64
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    • 2019
  • A great deal of research has explored individuals' attempts to simplify choices by constructing a consideration set. This research aims to investigate which construction strategy, either inclusion or exclusion, is more likely to be adopted and how the adoption of a particular construction strategy can affect consideration set size while identifying the moderating role of chronic indecisiveness in the construction process. The findings of Study 1 indicate that individuals are more likely to adopt an inclusion strategy to reduce a consideration set to a more manageable size, and that an exclusion strategy results in a larger consideration set. In Study 2, the findings reveal that high-indecisiveness individuals are less likely than low-indecisiveness individuals to select an inclusion strategy, but that high-indecisiveness individuals adopting an inclusion strategy are able to reduce the number of alternatives in a consideration set to a manageable size on par with the size of a consideration set formed by low-indecisiveness individuals without elevating the level of perceived difficulty. The current research contributes to the stream of research on consideration set construction and indecisiveness, and offers useful practical implications for overcoming indecisiveness. Limitations and avenues for further research are also discussed.

지식커뮤니티 기반의 청각장애아동 통합교육전략 (Inclusion Strategy for Hearing Impaired Students with Community of Knowledge)

  • 최연숙;박원희
    • 디지털융복합연구
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    • 제10권11호
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    • pp.579-588
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    • 2012
  • 청각장애아동들을 일반 학교에 포함시켜 교육하는 완전통합은 구미에서는 이미 일반화된 추세이다. 완전통합의 목표는 장애학생들을 정상학생집단 속에 포함시킴으로써 사회적 통합과 학업적 통합을 모색하는 데에 있다. 학업적 통합의 핵심 요소는 교실내에서의 수업참여도와 학업성취도이다. 본 연구에서는 청각장애아동 대상의 통합교육의 기대효과 및 교사입장과 학생에서의 어려움을 살펴보고 청각장애아동에 대한 지원서비스, 일반교사의 청각장애아동에 대한 긍정적 태도 형성, 일반교사의 청각장애아동을 위한 진로지도 서비스, 효과적인 교사 협력 체계의 구축 등에 관한 이슈를 요약한 뒤, 통합지원전략으로서의 지식커뮤니티 구축에 관한 논의를 시도해 보고자 한다.

THE FEEDING AND ECONOMIC VALUE OF MAIZE COB MEAL FOR BROILER CHICKENS

  • Ochetim, S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제6권3호
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    • pp.367-371
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    • 1993
  • The feeding value of maize cob meal was investigated in a trial involving one hundred and forty Arbor Acre day-old chicks raised to eight weeks of age. The maize cob meal which contained 32.5% fibre, 2.5% protein and had a gross energy value of 2,550 kcal/kg, was incorporated into the experimental diets at either 0, 2.9, 5.8, 11.6 or 23.2% level. All diets were formulated to contain 3,200 kcal/kg of metabolizable energy and approximately 22% protein by varying the proportions of maize and whole cooked soyabean meal in the diets. The inclusion of maize cob meal up to 11.6% in the diet did not significantly (p>0.05) affect body weight gains, feed consumption and utilization, as well as carcass yield and dressing percentage. However, at the 23.2% level of maize cob meal inclusion, body weight gains, feed utilization and carcass yields were significantly (p<0.05) reduced. The use of maize cob meal reduced feed cost for raising birds and either maintained or improved gross profit returns with up to 11.6% level of inclusion in the diet. It was concluded that maize cob meal can be included up to 11.6% in the diet of broiler chickens provided dietary energy concentration is maintained at 3,200 kcal of metabolisable energy per kilogramme of feed by using high energy density feed ingredient such as boiled whole seed soyabean meal.

Piroxicam-Cyclodextrin 포접화합물의 현탁제에 대한 생체내 이용율의 연구 (Bioavailability Studies on Suspension of Inclusion Complexes of Piroxicam with Cyclodextrins)

  • 박선희;이창훈;최영옥;박기배;김종갑
    • 한국임상약학회지
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    • 제1권1호
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    • pp.9-14
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    • 1991
  • Inclusion complexes of piroxicam with $\alpha,\;\beta\;and\;\gamma- cyclodextrins$ were prepared and suspended to enhance the bioavailability of piroxicam. A quantitative analysis was employed HPLC for the determination of piroxicam in the rabbit serum after a single oral dose in suspension of piroxicam and each of inclusion complexes of piroxicam with $\alpha,\;\beta\;and\;\gamma- cyclodextrins$, respectively. The bioavailability and serum level of piroxicam exhibited the highest in piroxicam clathrated $\beta-cyclodextrin$ than both piroxicam and the other complexes administered. and the total area under the curve of serum concentration versus time for their inclusion complexes were larger than that of piroxicam.

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Fiber source and inclusion level affects characteristics of excreta from growing pigs

  • Mpendulo, Conference Thando;Chimonyo, Michael;Ndou, Saymore Petros;Bakare, Archibold Garikayi
    • Asian-Australasian Journal of Animal Sciences
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    • 제31권5호
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    • pp.755-762
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    • 2018
  • Objective: The objective of the study was to determine the influence of varying fibrous diets on fecal characteristics of growing pigs. Methods: A total of 104 pigs (initial weight $18{\pm}2.0kg$) were used in the study. They were housed in individual pens and fed on diets containing maize cob, grass hay, lucerne hay, maize stover, and sunflower husk. These fibers were included at 0, 80, 160, 240, 320 and 400 g/kg. Fecal and urine samples were collected. Results: Fecal output was largest amongst pigs fed on diets containing grass hay and maize stover (p<0.05). Nitrogen content was highest in feces from pigs fed on sunflower husk (p<0.05). Pigs fed on diets containing maize stover and maize cobs produced the largest concentrations of short chain fatty acids. Acetate concentration was high in feces of pigs fed maize stover than those fed grass hay and lucerne hay (p<0.05). As the level of fiber inclusion increased, fecal consistency and nitrogen content increased linearly (p<0.05). Urea nitrogen decreased as the inclusion level increased across all the fibers (p<0.05), with maize cobs containing the largest content of urea nitrogen. As dietary fiber content increased, fecal nitrogen content also increased (p<0.05). Conclusion: It was concluded that different fiber sources influence fecal characteristics, thereby having different implications on pig waste management. It is vital to monitor fiber inclusion thresholds so as to easily manage environmental pollutants such as butyrate that contribute to odors.

Replacement value of cassava for maize in broiler chicken diets supplemented with enzymes

  • Chang'a, Edwin Peter;Abdallh, Medani Eldow;Ahiwe, Emmanuel Uchenna;Mbaga, Said;Zhu, Ze Yuan;Fru-Nji, Fidelis;Iji, Paul Ade
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권7호
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    • pp.1126-1137
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    • 2020
  • Objective: Pellet durability, particle size distribution, growth response, tibia bone characteristics and energy retention were measured to evaluate cassava as an alternative energy source to replace maize in broiler diets with or without Ronozyme (A+VP) enzyme composites. Methods: A total of 480 one-day broiler chicks were randomly assigned to 8 treatments in a 4×2 factorial arrangement. Four levels of cassava: (0%, 25%, 50%, 75%) and 2 levels of enzymes (0 and 500 g/tonne) were used. Each treatment was replicated six times, with ten birds per replicate. Results: The particle size distribution in the diets showed an increasing trend of small particles with increase in cassava level. Pellet durability decreased (p<0.05) with cassava inclusion. Feed intake was highest in birds fed diets with medium cassava level at 1 to 24 d and 1 to 35 d of age. The body weight gain of birds reduced (p<0.037) as cassava level increased, but it increased (p<0.017 when enzymes were added. The feed conversion ratio was high (p<0.05) when cassava level was increased, but it reduced (p<0.05) when enzymes were added. The dressing percentage (DP), and weight of drumsticks reduced (p<0.05) with increasing cassava level. Enzyme supplementation increased (p<0.05) DP, and weight of breast, thighs and drumsticks. Ash content, weight, length, width, and bone strength decreased (p<0.05) when cassava level was increased, however, they were increased with enzyme addition. The contents of Ca, K, and Zn were raised (p<0.001) with increasing cassava level. Enzyme inclusion increased (p<0.001) all mineral contents in tibia bones. Body fat and energy retained as fat decreased (p<0.001) as cassava level increased. Enzyme inclusion increased (p<0.05) body protein content and energy retained as protein. Conclusion: Although broiler performance was depressed by high levels of cassava inclusion, it was not affected by low levels, which further improved by enzyme supplementation.

Effect of Microstructure on Hydrogen Induced Cracking Resistance of High Strength Low Alloy Steels

  • Koh, Seong Ung;Jung, Hwan Gyo;Kim, Kyoo Young
    • Corrosion Science and Technology
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    • 제6권4호
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    • pp.164-169
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    • 2007
  • Hydrogen induced cracking (HIC) was studied phenomenologically and the effect of microstructure on HIC was discussed for the steels having two different levels of nonmetallic inclusions. Steels having different microstructures were produced by thermomechanically controlled processes (TMCP) from two different heats which had the different level of nonmetallic inclusions. Ferrite/pearlite (F/P), ferrite/acicular ferrite (F/AF), ferrite/bainite (F/B) were three representative microstructures for all tested steels. For the steels with higher level of inclusions, permissible inclusion level for HIC not to develop was different according to steelmicrostructure. On the contrary, HIC occurred also at the martensite/austenite (M/A) constituents regardless of steel microstructure when they accumulated to a certain degree. It was proved that M/A constituents were easily embrittled by hydrogen atoms. Steels having F/AF is resistant to HIC at a given actual service condition since they covers a wide range of diffusible hydrogen content without developing HIC.

Effects of dietary inclusion level of microwave-dried black soldier fly (Hermetia illucens) larvae meal on growth performance, cecal volatile fatty acid profiles, and blood parameters in broilers

  • Kim, Byeonghyeon;Kim, Hye Ran;Jeong, Jin Young;Park, Kwanho;Ji, Sang Yun;Park, Seol Hwa
    • 농업과학연구
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    • 제48권2호
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    • pp.231-239
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    • 2021
  • This study evaluated the effect of microwave-dried black soldier fly (Hermetia illucens) larvae meal (HILM) as a dietary protein source for broiler diets. A total of 250 male broilers were randomly allocated to five dietary treatment groups (10 replicates and 5 birds·pen-1) which were respectively fed the following: a control diet (HI0) and four experimental diets in which soybean meal was replaced with 2 (HI2), 4, 6, and 8% HILM. At the end of the study (35 d), blood samples were collected from 10 randomly selected broilers (1 bird per pen) to determine serum parameters. Then, the broilers were slaughtered to determine volatile fatty acid (VFA) profiles in cecal digesta. The average daily gain and average daily feed intake linearly decreased (p < 0.01), and the feed conversion ratio linearly increased (p < 0.05) according to the inclusion level of HILM; however, there were no significant differences between the HI0 and HI2 groups. Dietary HILM increased (p < 0.01) the total VFAs in cecal digesta and decreased (p < 0.05) the triglyceride level in the blood. The broilers fed HILM had lower (p < 0.01) serum phosphorus levels; dietary HILM increased (p < 0.05) the serum calcium level. The total VFAs in cecal digesta were positively influenced by the dietary microwave-dried HILM. However, a low inclusion level (2%) of HILM in broiler diets is proper in terms of growth performance and health.