13 research outputs found

    BIOLOGIJA RAZMNOŽAVANJA VRSTE Capoeta trutta (Heckel, 1843) U RIJECI SHOUR, JUGOZAPADNI IRAN

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    Reproductive characteristics of touyeni Capoeta trutta (Heckel, 1843), a native cyprinid in the Shour River, Iran, were investigated by monthly sampling between July 2010 and June 2011. Among 815 specimens captured, the overall sex ratio was 1:1.96 (males:females). Monthly changes of the gonado-somatic index (GSI) and frequency distribution of egg diameter confirmed that spawning lasted from January to April. Results indicated that the age at first maturity for males is one year and for females two years. Fecundity increased with fish age, averages being 2591 for 1+ old females and 11552 eggs in mature 6+ old females. Correlation of absolute fecundity and body weight was high (R= 0.85). The absolute fecundity between all age groups was statistically significant (p<0.05).Istraživanje reprodukcijskih osobina vrste Capoeta trutta (Heckel, 1843), izvornog ciprinida iz rijeke Shour u Iranu, vršeno je mjesečnim uzorkovanjem od srpnja 2010. do lipnja 2011. Između 815 ulovljenih primjeraka, ukupni omjer spolova bio je 1: 1,96 (mužjaci: ženke). Mjesečne promjene gonadosomatskog indeksa (GSI) i distribucije frekvencija promjera jaja ukazuju da je mrijest trajao od siječnja do travnja. Rezultat ukazuje da je dob prve spolne zrelosti za mužjake jedna godina, a kod ženki dvije godine. Plodnost se povećava s dobi i u prosjeku iznosi 2591 jaja za 1+ stare ženke te 11.552 jaja u zrelim ženkama kod dobi od 6+. Korelacija apsolutne plodnosti i tjelesne težine bila je visoka (R = 0,85). Apsolutna plodnost između svih dobnih skupina bila je statistički značajna (p <0,05)

    Effects of Artemia enriched with unsaturated fatty acids and vitamin C on growth, survival and resistance Salmo trutta caspius larvae

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    This experiment was conducted to investigate the effect of using n-3 HUFA and Vitamin C enriched Artemia urmiana Nauplii Five difference treament were tested: for Caspian salmon (Salmo trutta caspius) larvae compare with artificial food in five treatment: (1) Artificial food, (2) Newly hatched Artemia (3) n-3 HUFA enriched Artemia (4) n-3 HUFA + 10% Ascorbyl Palmitate enriched Artemia (5) n-3 HUFA+20% Ascorbyl palmitate enriched Artemia during 15 days then all treatment were fed with artificial food during 20 days. In days of 15, larvae fed with newly hatched Artemia didn’t show significant difference of growth rate and survival compared to larvae fed with n-3 HUFA and Vitamn C enriched live food (p<0.05), However all treatment which fed live food have better growth rate and survival compred to larvae fed artificial food. Larvae fed with enriched Artemia with n-3 HUFA + 20% Ascorbyl palmitate has best result of temperature resistance at 26'C and 28'C. There is not significant difference between treatment (1) and (2), (3) and in this manner between (2), (3) and (4), (5) (P>0.05). In days of 35, larvae fed n-3 HUFA + 10% and 20% Ascorbyl pamlitate show better wet weight and dry weight compared to other treatment (P<0.05). Larvae fed n-3 HUFA Artemia showed significant difference compared to treatment (1) and (2), However there is not significant difference between treatment (1) and (2). Larvae fed artificial food show less and significant difference of survival compared to other treatment (P<0.05). Larvae fed artificial food show least of temperature resistance at 26'C and 28'C , However, there is not significant difference between all treatment (P<0.05)

    Fatty acid composition of the marine micro alga Tetraselmis chuii Butcher in response to culture conditions

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    Abstract Micro alga Tetraselmis chuii Butcher is one of the species that are considered to be important sources of polyunsaturated fatty acids (PUFA). The aim of our experiment was to determine the effect of the light intensity and the water salinity on the growth and fatty acid composition of Tetraselmis chuii. There were significant correlation (P ≤ 0.05) between the cell density and light intensity and cell grow rate and light intensity, the correlation were r 2 =0.71; r 2 =0.74 correspondingly. The lowest concentration of the cell density was observed at the lowest light intensity and the highest salinity. Palmitic acid among the saturated fatty acid, oleic acid, among mono unsaturated fatty acid, alpha-linoleic acid among the PUFA, and eicosapentaenoic acid (EPA) among high unsaturated fatty acid (HUFA), had the highest percentage. Variance analyses showed that the light intensity exhibited a significant correlation (P ≤ 0.05) with PUFA, HUFA. However there was not significant correlation among light intensity and SFA, MUFA. This result showed that relationship between environment conditions and fatty acid composition in T. chuii was significant thus it can be used to produce specific profile of fatty acids in this strain

    Physiological radar system for diagnosing sleep disorders

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    Ph.D. University of Hawaii at Manoa 2014.Includes bibliographical references.Sleep disorders are a class of medical disorders where typical sleep behavior is disrupted or abnormal, which leads to physical, mental, and emotional dysfunction. Often, sleep disorders go undiagnosed at the source of these symptoms. Sleep apnea and hypopnea are the most common sleep disorders. They are classified by a recurring interruption of breathing during sleep or abnormally shallow breathing as a result of the obstruction of the upper airway or neurological malfunction. Statistics show that about 15 million Americans suffer from obstructive sleep apnea (OSA), one type of sleep apnea. Currently, polysomnography (PSG) is considered the gold standard test for detecting sleep disorders. During this test a subject with a suspected disorder spends a night in a sleep lab, and several physiological parameters are recorded during their sleep using sensors attached to the body. All of this makes PSG time consuming, complicated, inconvenient, and expensive. Therefore, the development of more simple, accurate, comfortable, and affordable devices for sleep monitoring is desired to improve the efficacy of sleep tests and improve accessibility. In this dissertation, a non-contact physiological radar monitoring system (PRMS) is introduced for sleep disorder monitoring. This PRMS utilizes continuous-wave Doppler radar and a real-time algorithm which recognizes paradoxical breathing to diagnose OSA and hypopnea. The PRMS was integrated with a standard PSG system to evaluate the efficacy for supplementing or replacing a standard PSG test for some applications. A clinical study was carried out using the PRMS on 10 subjects with known sleep apnea. In this study, the PRMS accurately diagnosed the occurrence of either an OSA or hypopnea event, but was less effective for differentiating between them. As a compliment to a standard PSG test, the PRMS results provided a clear way to quickly identify the occurrence of an obstructive apnea/hypopnea event, with the PSG measurements then used to further analyze the event. Recognition of the occurrence of a general obstructive sleep disorders also makes the system attractive as a standalone screening device that could be conveniently used, perhaps at home, on a broad population to identify patients that should be considered for further sleep medicine treatment

    A Multi-objective Multi-Supplier Sustainable Supply Chain with Deteriorating Products, Case of Cut Flowers

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    International audienceThere is a growing concern, in the last decade, about the environment and social footprint of business operations. The subject of supply chain sustainability, simultaneously considering economic, environment and/or social values, has gained attention in the academia and from the industry. Particularly for deteriorating and seasonal products, such as fresh produce, the issues of timely supply and disposal of the deteriorated products are of high concerns. This research develops a new replenishment policy in a centralized sustainable supply chain for the deteriorating items. The model considers inventory and transportation costs, as well as the environmental and social impacts, with several transportation vehicles producing various pollution and greenhouse gas levels. Some variables are uncertain as the end-customer demand, partial backordered ratio and deterioration rate. We also consider backorders, quantity discount prices, non-linear holding costs, multiple transportation-route options, and uncertain demand. We consider the deterioration of in-stock inventory. and the deterioration during transportation. The best transportation routes and vehicles, and inventory policy are determined by finding a balance between financial, environmental and social criteria. We develop a linear multi-objective mathematical model and present a numerical example to demonstrate its applicability and effectiveness. (C) 2016, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved

    A Multi-objective Multi-Supplier Sustainable Supply Chain with Deteriorating Products, Case of Cut Flowers

    No full text
    International audienceThere is a growing concern, in the last decade, about the environment and social footprint of business operations. The subject of supply chain sustainability, simultaneously considering economic, environment and/or social values, has gained attention in the academia and from the industry. Particularly for deteriorating and seasonal products, such as fresh produce, the issues of timely supply and disposal of the deteriorated products are of high concerns. This research develops a new replenishment policy in a centralized sustainable supply chain for the deteriorating items. The model considers inventory and transportation costs, as well as the environmental and social impacts, with several transportation vehicles producing various pollution and greenhouse gas levels. Some variables are uncertain as the end-customer demand, partial backordered ratio and deterioration rate. We also consider backorders, quantity discount prices, non-linear holding costs, multiple transportation-route options, and uncertain demand. We consider the deterioration of in-stock inventory. and the deterioration during transportation. The best transportation routes and vehicles, and inventory policy are determined by finding a balance between financial, environmental and social criteria. We develop a linear multi-objective mathematical model and present a numerical example to demonstrate its applicability and effectiveness. (C) 2016, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved

    AACL BIOFLUX Aquaculture, Aquarium, Conservation &amp; Legislation International Journal of the Bioflux Society Effect of vacuum packaging on quality changes of refrigerated Jinga shrimp Metapenaeus affinis muscle

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    Abstract. Metapenaeus affinis is one of the economically valuable species of Persian Gulf and Oman Sea and is of high nutritional value. In this research chemical composition and spoilage indicators of vacuum packed shrimp muscle including total lipids (TL), moisture, total protein, total ash, peroxide value (PV), thiobarbituric acid (TBA), total volatile bases nitrogen (TVN), and pH during a period of 18 days were examined at a cold temperature. To carry out the experiment sampling was done in seven steps (0, 3, 6, 9, 12, 15, 18 days) and the results showed that the rate of PV index in the first day increased from 0.93 meq/kg to 2.09 meq/kg. TVN indicator increased from 10.02 mg/100 g muscle to 26.83 mg/100 g muscle in the 18 th day. Lipid and protein content significantly decreased during the period (P&lt;0.05). Thiobarbituric acid (TBA) index increased from 0.59 mg MDA/kg to 1.53 mg MDA/kg in the 18 th day. In general, according to the results, the maintenance period of vacuum-packed muscles at cold temperature was determined to be 12 days

    Study of concentration of omega-3 and omega-6 fatty acids in Persian Gulf,s wild and farmed green tiger shrimp (P.semisulcatus) in the limited area of Bushehr province water

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    Background: Sea foods contain high level of unsaturated fatty acids. The aim of this study is comparison of ώ3 and ώ6 levels in wild and farmed green tiger shrimp (P.semisulcatus). Materials and Methods: in this study 120 shrimps (wild=60 and farmed=60) selected. Analysis of Fatty acids was performed by Gas Chromatography. Two-factor variance difference analysis used for demonstration the effects of main factor (sex and environment) and their interactions. Results: Three fatty acids included linoleic, Decosahexaenoic (DHA) and eicosapentaenoic (EPA) were the most dominant fatty acids in the wild and farmed species. Among ώ6 fatty acids, the farmed shrimp contained a higher level of linoleic acids (P>0.05) whereas in ώ3 fatty acids, eicosapentaenoic acid (EPA) and eicosathereanoic acid were significantly higher in wild shrimps. The n-3/n-6 fatty acids ratio was similar in two groups. The comparison of DHA/EPA ratio did not show difference between wild and farmed shrimps and this ratio was affected by sex. Conclusion: Comparison between two groups showed that the concentration of fatty acids is relatively to each other in wild and farmed shrimp

    Multi-objective optimization for mixed-model assembly line sequencing and balancing in the context of Industry 4.0

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    International audienceDuring the last decade, customers' demands have been transformed significantly and are becoming more and vaster. To answer this transformation, a new production approach, called customized mass production, is introduced. All kinds of production systems are concerned by this transformation; however, we focus mainly on mixed-model assembly lines having a brilliant role in producing a vast variant of products at a low quantity. One of the most important challenges in assembly lines is concerned with the determination of production sequence. In customized mass production, operation time can be varied from one product to the next one, and therefore, we generate an unbalancing between several workstations. Then, for customized mass production, we are obligated to solve the sequencing and line balancing problem simultaneously. This study proposes a new multi-objective mathematical model for this problem. Since the objective functions are conflicting with each other, the augmented e constraint (AUGMECON) method is used to solve the problem. Knowing that after the resolution of the given problem, this method can create several alternative solutions, and a multi-criteria decision-making tool is used to rank these alternatives solutions

    Condition factor, diet and gonadosomatic index of Carasobarbus luteus (Heckel, 1843) in Karkheh River, Iran

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    Abstract This study describes the condition factor (K), gonadosomatic index (GSI) and relative length of the gut (RLG) of Carasobarbus luteus in Karkheh River. A total of 210 specimens were caught by using various mesh size of gill nets fro
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