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사료내 단백원의 차이가 참돔(Pagrus major)과 교잡어 (P. major ♀×Acanthopagrus schlegeli ♂)의 성장과 에너지수지에 미치는 영향
김양수,Biswajit Kumar Biswas,Amal Biswas,지승철,정관식,Osamu Murata,Yoshifumi Sawada,Kenji Takii 전남대학교 수산과학연구소 2013 수산과학연구소논문집 Vol.21 No.-
This study investigated the growth and energy partition of juvenile red sea bream Pagrus major (159.3±9.5 g; RSB) and hybrid sea bream P. major (♀)×Acanthopagrus schlegeli (♂) (144.8± 10.0 g; F1) on satiation feeding of fish meal (FM) and soybean meal (SM) based isocaloric diets (21.1 kJ/g diet) at 21.6℃ water temperature for 4 weeks. Two sea bream species offered no significant influence on final mean body weight, condition factor, viscera somatic index and apparent digestibility coefficient in both dietary groups, and both fish species were increased the relative stomach and intestine weight in SM than that in FM. RSB fed FM diet showed larger growth rate, feed efficiency, protein efficiency ratio, and apparent nutrients and energy retention efficiency than that fed SM diet, but this was inverse in F1. Whereas, Energy partitions of RSB and F1 in FM and SM dietary groups observed a similar tendency on fecal, digestible, urinary, metabolizable and standard metabolizable energy. However, retained energy of RSB in fed FM diet higher than that in SM, was inverse in F1. Moreover, heat increment plus voluntary activity energy consumption of F1 fed SM diet compare with fed FM diet lower than that of RSB. These results suggest that RSB and F1 has similar the energy consumption metabolism for digestive absorption in both diets, however, the energy accumulation pattern from absorbed nutrients appear to differ on SM fed.
Kim, Yang-Su,Ji, Seung-Cheol,Biswas, Amal,Biswas, Biswajit Kumar,Yong, Annita Seok Kian,Takaoka, Osamu,Jeong, Gwan-Sik,Murata, Osamu,Takii, Kenji The Korean Society of Fisheries and Aquatic Scienc 2014 Fisheries and Aquatic Sciences Vol.17 No.1
To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy ($F_1$), female red sea bream (RSB) ${\times}$ male black sea bream, five diets with various CP/CL ratios-60/7, 55/12, 51/17, 46/23, and 41/28-were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, $F_1$, weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at $21^{\circ}C$. At the larger juvenile stage, $F_1$, weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at $24^{\circ}C$. Moreover, survival and apparent nutrient retention of $F_1$ at both stages were significantly higher than those in RSB. These results indicate that both $F_1$ and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, $F_1$ in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of $F_1$ juveniles will be more economical than RSB.
( Yang Su Kim ),( Seung Cheol Ji ),( Amal Biswas ),( Biswajit Kumar Biswas ),( Annita Seok Kian Yong ),( Osamu Takaoka ),( Gwan Sik Jeong ),( Osamu Murata ),( Kenji Takii ) 한국수산과학회(구 한국수산학회) 2014 Fisheries and Aquatic Sciences Vol.17 No.1
To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy (F1), female red sea bream (RSB) × male black sea bream, five diets with various CP/CL ratios「60/7, 55/12, 51/17, 46/23, and 41/28」were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, F1, weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at 21°C. At the larger juvenile stage, F1, weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at 24°C. Moreover, survival and apparent nutrient retention of F1 at both stages were significantly higher than those in RSB. These results indicate that both F1 and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, F1 in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of F1 juveniles will be more economical than RSB.
Isolation and characterization of acid-soluble bluefin tuna (Thunnus orientalis) skin collagen
Tanaka, Teruyoshi,Takahashi, Kenji,Tsubaki, Kazufumi,Hirata, Maika,Yamamoto, Keiko,Biswas, Amal,Moriyama, Tatsuya,Kawamura, Yukio The Korean Society of Fisheries and Aquatic Scienc 2018 Fisheries and Aquatic Sciences Vol.21 No.4
In this study, we isolated and characterized the acid-soluble skin collagen of Pacific bluefin tuna (PBT, Thunnus orientalis). The PBT skin collagen was composed of two ${\alpha}$ chains (${\alpha}1$ and ${\alpha}2$) and one ${\beta}$ chain. The denaturation temperature of PBT collagen was low although it was rich in proline and hydroxyproline. The primary structure of PBT skin collagen was almost identical to that of calf and salmon skin collagen; however, it differed with respect to the epitope recognition of the antibody against salmon type I collagen. These results suggest that the primary structure of skin collagen was highly conserved among animal species, although partial sequences that included the epitope structure differed among collagens.
교잡어, 참돔 (Pagrus major, ♀) × 감성돔 (Acanthopagrus schregeli, ♂)의 성장 및 수온변화와 저염분 환경에서의 내성
김양수 ( Yang Su Kim ),지승철 ( Seung Cheol Ji ),( Biswajit Kumar Biswas ),( Amal Biswas ),정관식 ( Gwan Sik Jeong ),( Osamu Murata ),( Ken Ji Takii ) 한국수산과학회(구 한국수산학회) 2011 한국수산과학회지 Vol.44 No.3
The growth and tolerance for water temperature and salinity were compared among red sea bream Pagrus major (RSB) black sea bream Acanthopagrus schregeli (BSB) and their hybrid (F1), female RSB × male BSB. The growth of the F1 fish did not differ until 27 days after hatching (dAH), after which the most rapid growth was observed until approximately 300 dAH, followed by RSB and BSB. However, the RSB had out grown the F1 fish by approximately 303 dAH. By 480 dAH, the RSB were largest, followed by the F1 and BSB groups. The tolerances for high and low water temperature were significantly different for each species and growth stage. The largest tolerance spectrum was observed in the BSB group, and the tolerance spectrums gradually decreased with increasing final body weight. During the salinity tolerance trials, all of the species started to die following transfer into freshwater (0 psu). BSB showed the highest survival rate when kept in fresh water for an average of 29.9 hours, while the F1 fish were more tolerant than the RSB fish. The fish were increasingly tolerant to fresh water and changes in water temperature as they grew, while the size of the temperature spectrum remained unchanged but shifted to a lower temperature range with growth. Our results demonstrate that F1 performed well in terms of growth compared to parental fish, with higher temperature and salinity tolerances than RSB, and is thus suggested to be a suitable aquaculture species for Korea and northeast China.
Effect of Starvation on Survival Rate and Body Composition of
Yang-Su Kim*, Shinj i Yamamoto, Chihiro Aoki, Amal Biswas,Yoshifumi Sawada, Kenj i Takii and Osamu Murata 전남대학교 수산과학연구소 2014 수산과학연구소논문집 Vol.22 No.-
The effect of starvation on Pacific bluefin tuna Thunnus orientalis (PBT) juveniles was investigated according to two stages, weaning stage (0.8±0.2 g) at 25 days post hatching (dph) and transportation stage (3.8±1.2 g) at 36 dph. The juveniles were then transferred (0 h) into each tank from the mass production tank. Starved PBT juveniles were collected from one random tank at 3, 6, 9, 29 and 93 h (25 dph), and 12, 24, 36, 48, 60 and 72 h (36 dph). The survival rate of 25 dph remained above 80% until 78 h: moreover the standard length and weight were increased until 9 h of starvation. However, the survival rate of 36 dph rapidly decreased to 42% at 48 h, and the standard length and weight were gradually decreased until the end of starvation. Whole body lipid and glycogen were rapidly consumed initially and moreover, the protein and energy contents were gradually and steadily decreased during starvation in both experiments. When compared to the linear regression analysis between energy consumption and starvation time, there was a statistical difference between the experiments (P < 0.05). These results suggest that energy mobilization differs between the weaning (25 dph) and transportation stages (36 dph). Further, it is assumed that the juveniles are more sensitive to starvation at 25 dph.
Isolation and characterization of acid-soluble bluefin tuna (Thunnus orientalis) skin collagen
( Teruyoshi Tanaka ),( Kenji Takahashi ),( Kazufumi Tsubaki ),( Maika Hirata ),( Keiko Yamamoto ),( Amal Biswas ),( Tatsuya Moriyama ),( Yukio Kawamura ) 한국수산과학회(구 한국수산학회) 2018 Fisheries and Aquatic Sciences Vol.21 No.2
In this study, we isolated and characterized the acid-soluble skin collagen of Pacific bluefin tuna (PBT, Thunnus orientalis). The PBT skin collagen was composed of two α chains (α1 and α2) and one β chain. The denaturation temperature of PBT collagen was low although it was rich in proline and hydroxyproline. The primary structure of PBT skin collagen was almost identical to that of calf and salmon skin collagen; however, it differed with respect to the epitope recognition of the antibody against salmon type I collagen. These results suggest that the primary structure of skin collagen was highly conserved among animal species, although partial sequences that included the epitope structure differed among collagens.