巻号一覧
51 巻, 11 号
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山本 勝太郎1985 年 51 巻 11 号 p. 1755-1760
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーTo obtain a standard for rope usage, the tensile breaking strength of various ropes tied in ten different kinds of knots has been tested in both dry and wet conditions. The ropes tested were a polyethylene, a polypropylene, a mixed one consisting of polyethylene and vinylone which comprised a 3-strand laid rope, and a polyethylene 8-strand braided rope. The commercial size was 9mm in diameter for all ropes. “Dry condition” means that the knot samples were stored at normal temperature of a room, and “wet condition” means that the knot samples were soaked in water applying a pressure of 2.0kg/cm2 for 12h. Results of tests for tensile breaking strength indicated that the optimum number of tucks in an eye splice was 4 tucks for the laid ropes, and 3 tucks for the braided rope. Percentages of the knot strength to the dry one of the eye splice although being somewhat different for both sample conditions and among the kinds of ropes tested, were roughly estimated as follows: 50% for the overhand knot and the single-sheet bend with end return, 55% for the double-sheet bend, 60% for the bowline knot and kakine-musubi and 95% for the short splice. Furthermore, percentages of the knot strength to the dry strength of the unknotted rope, if estimated as 90% for the eye splice, become 45%, 50%, 55% and 85% respectively.抄録全体を表示PDF形式でダウンロード (1326K) -
佐藤 要, 宮崎 芳夫1985 年 51 巻 11 号 p. 1761-1768
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーWith 20 variables taken as principal items of 56 fishing boats in seven types, classification of fishing boats was made in accordance with principal components analysis and cluster analysis, in combination. Verification of result was made by using data of 54 tuna long line fishing boats not used in those analyses. As the result, an existing method of classification, that is, a method of classification, set up according to uses, proved to be a suitable one. Hence, the classification by use of the fishing boat has quite an important meaning, and the fishing boat has characteristic features essential for the performance of its function. Here, the factors such as, for example, length between perpendiculars, molded breadth, molded depth and coefficient of fineness should be considered. It is, concretely speaking, true that we can decide such factors practically only from energy saving viewpoint neglecting the use of fishing boat, but we are afraid that the fishing boat, the type of which is designed to lighten hull resistance, has, practically speaking, a serious defect in terms of efficiency required in its operation.抄録全体を表示PDF形式でダウンロード (624K) -
井上 悟, 佐藤 修1985 年 51 巻 11 号 p. 1769-1776
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーA floating fisheries bank is a floating body of a distinctive shape, which is moored by a single line in the middle layer of sea. Its function is to gather the migratory fish and surface and middle layer fish. Though they were developed only a few years ago, many floating fisheries banks are being utilized and they are regarded as highly efficient, but there may be many ways to further improve on design and function.
In this study we use the forced moored sphere as the most basic type of the floating fisheries banks. Analytical and experimental investigation of the sphere motion and the mooring forces in water waves were carried out. Analytically, especially from a fisheries point of view, we paid attention to the following two points: 1) Compared to the net buoyancy of sphere, the vertical wave force is big enough; 2) Newton's law concerning hydrodynamic drag is applied to the damping force. From these, we then deduced a nonlinear forced vibration equation. An approximate solution of it was obtained by using Fourier's expansion. In order to confirm the result, we did some experiments in the wave tank varying the wave period, wave height, diameter of sphere, density of sphere, and length of the mooring rope. The results calculated from the above equation were in good agreement with the experimental values.抄録全体を表示PDF形式でダウンロード (1421K) -
山下 洋, 青山 恒雄1985 年 51 巻 11 号 p. 1777-1780
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThe characteristics of incubation time, yolk absorption, onset of feeding, and early larval growth of the Japanese sand eel Ammodytes personatus was examined. Incubation time to the beginning of hatching and to the time of 50% hatching was, respectively, 14 days and 20 days at 15.5°C, 18 days and 25 days at 10.5°C and 33 days and 51 days at 6.5°C. Eggs showed amarkedly extended period of hatching, 12, 29, and 59 days at each of the above respective tempera tures. Using the relationship between incubation time and temperature, the spawning season was estimated to be from mid-December to the end of January with a peak at the end of December. Newly hatched larvae commenced feeding at an age of 2 days and all larvae completed yolk sac absorption by 12 days at 6.5°C, indicating a long overlapping period of endogenous and exogenous nutrition. The average size of newly hatched larvae is 4.72 mm in standard length and 33.9 μg in dry weight. The specific growth of larvae up to 24 days old fed with field-collected microplankton and rotifier in the ratio 2:8 at 6.5°C was 4.2 % per day in dry weight.抄録全体を表示PDF形式でダウンロード (280K) -
梨本 勝昭, 元谷 怜1985 年 51 巻 11 号 p. 1781-1788
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーHydraulic jet dredges are used for catching great northern tellin peronidia venulosa in the Shiriuchi sea area.
Considering that the hydraulic jet dredge is a mechanism where the shell does not sift through gaps between teeth and through netting bag just as in the case of dredges most commonly used, selectivity curves for this shell were estimated for the various gaps between the teeth and for the various mesh sizes of netting bag.
Size distribution for shells living in the Shiriuchi sea area and efficiency of this dredge were examined based on the catch and size composition data from a dredging survey.
It was found that shells living in the Shiriuchi sea area have a density of about 200 per 100m2. However the efficiency of hydraulic jet dredge is influenced considerably by the distance between teeth, the mesh size of netting bag, and the shell size, the average efficiency was about 0.86 for using this dredge.抄録全体を表示PDF形式でダウンロード (1409K) -
井上 喜洋, 有元 貴文1985 年 51 巻 11 号 p. 1789-1794
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーIt is important to grasp the behaviour of fish migrating to the coast in order to catch them with set-net. The distributions of fish schools were investigated with the records of a fish finder, during the period from March to July, 1982. During this time, most of the images obtained by the fish finder were estimated as schools of sardines Sardinops melanosticta from the catch data of the small set-nets (Hisago-ami). The authors analysed the fish behaviour relevant to Hisagoami, according to the change of sizes and distributions of the sardine schools.
As the results, the distributions varied with their sizes. A few of the large schools aggregated in the areas deeper than 60m, while many of the smaller schools showed a random distribution pattern in the shallower area. Many set-nets were constructed in the area between 30-60m depth. The designs and capturing mechanism of the Hisago-ami were considered to be well adapted to the migrating behaviour of sardine schools.抄録全体を表示PDF形式でダウンロード (1103K) -
丹羽 栄二, 鈴木 雅博, 中山 照雄1985 年 51 巻 11 号 p. 1795-1798
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーHeat-induced polymerization of fish actomyosin (AM) was investigated with sucrose density gradient centrifugation. The AM solution was placed on the top of the density gradient of sucrose solution accumulated within a narrow test tube (inner diameter: 6mm, length: 80mm) and heated at 40, 60 and 90°C. The chilled tube was centrifugated at 1200×g for 10min. The sedimentation pattern was recorded for each tube with a scanning turbidimeter designed by the authors. In the pattern, new peaks due to AM polymer appeared on heating. As the temperature rose, high molecular polymers were formed; as a result, the distribution of molecular weight became broader.
From the above results, the formation of protein network structure was compared between the setting of fish flesh sol (suwari) and fish flesh gel (kamaboko) formation.抄録全体を表示PDF形式でダウンロード (300K) -
野俣 洋, 豊原 治彦, 牧之段 保夫, 池田 静徳1985 年 51 巻 11 号 p. 1799-1804
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThree kinds of proteinases were separated from the crude enzyme of chum salmon Oncor-hynchus keta muscle by DEAE-cellulose chromatography and some properties were examined. The properties of these proteinases were similar to those reported so far in fish muscle cathepsin D, alkaline proteinase and calpain, respectively. Each proteinase activity in the muscular tissue was compared between feeding and spawning stages. Cathepsin D and alkaline proteinase activities were higher in the spawning stage than in the feeding stage. No significant difference was observed (p<0.05) in calpain activity between both stages.抄録全体を表示PDF形式でダウンロード (479K) -
野俣 洋, 豊原 治彦, 牧之段 保夫, 池田 静徳1985 年 51 巻 11 号 p. 1805-1809
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーTwo proteinase inhibitors were separated from the crude extract of chum salmon Oncorhynchus keta muscle by DEAE-cellulose chromatography and some of their properties were examined. Consequently, the existence of calpastatin and trypsin inhibitor in chum salmon muscle was recognized and their properties were similar to the reported fish muscle, respectively. Each inhibitor activity in the muscular tissue was compared between feeding and spawning stages. Significant difference was observed (p<0.05) in calpastatin and trypsin inhibitor activities between both stages and these activities were lower in the spawning stage than in the feeding stage.抄録全体を表示PDF形式でダウンロード (346K) -
上田 泰司, 中原 元和, 中村 良一, 鈴木 譲1985 年 51 巻 11 号 p. 1811-1816
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーIn order to know the effect of topography on the contamination of marine organisms by radionuclides, the accumulation of 60Co was observed under the reducing level of 60Co in rearing sea water. The level of 60Co in sea water was exponentially reduced by 90% in 1, 7 and 14 days assuming the dispersion patterns of radionuclide from nuclear facilities. The radioactivity in organism was expressed by an exponential model which involved biological parameters (uptake and excretion rate) and the reduction coefficient of radioactivity in sea water. On the 10th day after the start of the experiment, the radioactivity in the fish under the reduction of 60Co in sea water by 90% in 1 day was lower with a factor of 7 and 12 than that of under the reduction in 7 and 14 days, respectively. In this way of thinking, theoretical change in the time of level of 60Co in various marine organisms was illustrated under the reduction of 60Co in sea water by 90% in 7 days. The highest radioactivity was calculated around the 10th day.抄録全体を表示PDF形式でダウンロード (362K) -
安藤 清一, 羽田野 六男, 座間 宏一1985 年 51 巻 11 号 p. 1817-1824
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThe possibility of selective consumption of fatty acids in muscle lipid during spawning migration of chum salmon was studied. Total lipid in muscle significantly decreased during spawning migration, particularly in triglyceride. Free fatty acid gradually increased, while phospholipid was maintained at a constant level during spawning migration. Consumed fatty acids in muscle lipid gradually increased during spawning migration. The relative ratio of individual consumed fatty acids was almost the same among chum salmon of different physiological states.
It was consequently concluded that no selective consumption of fatty acids in muscle lipid occurred during spawning migration of chum salmon.抄録全体を表示PDF形式でダウンロード (452K) -
浮 永久, 煙山 彰, 渡辺 武1985 年 51 巻 11 号 p. 1825-1833
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーFeeding experiments were conducted three times to develop a semipurified test diet for abalone which is essential for investigation on nutritional requirements. Juvenile abalone Haliotis discus hannai INO weighing 3.1-4.3g in live weight (29-34mm in shell length) were fed on one of the variety of the formulated test diets containing casein or white fishmeal as a protein source, and different levels of sodium alginate, lipid and a mineral mixture, for 30 and 40 days, respectively.
The growth rate and feed conversion efficiency (FCE) were compared with those obtained by feeding with live fronds of the alga Eisenia bicyclis as a control, which was known to have high dietary value for this herbivore. Dietary value of the casein diet was found to be comparable or superior to that of the alga. While feeding abalone on a white fishmeal diets resulted in a lower growth and FCE, being about 60% of those compared to the casein diets. These results clearly indicated that the casein diet used in these experiments was suitable as a semipurified test diet for abalone. Based upon the results of growth rate and FCE, it was concluded that an optimum level of sodium alginate, lipid and the mineral mixture in a casein diet was 20-30%, 5% and 4%, respectively.抄録全体を表示PDF形式でダウンロード (676K) -
浮 永久, 煙山 彰, 渡辺 武1985 年 51 巻 11 号 p. 1835-1839
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーAn experiment was conducted to evaluate nutritional quality of several protein sources in diet for juvenile abalone Haliotis discus hannai INO by feeding them diets containing each of protein sources at a 30% level for 40 days. Growth rate expressed as a relative value to that obtained in the group receiving a diet containing casein as a protein source and PER of each protein source were measured as follows, casein: 100, 4.2; soybean meal: 63, 2.6; leaf protein concentrate prepared from rye grass: 53, 1.9; egg albumin: 47, 1.6; whole egg: 44, 1.6; white fishmeal: 35, 1.7 and corn gluten meal: 23, 1.2, respectively.
These values were the highest in the abalone fed with the casein diet, suggesting a high nutri-tional quality of casein as a protein source in diet for abalone. While the dietary value of egg albumin, whole egg and white fishmeal were far inferior to casein, being quite different from the case of fish. The difference in protein quality is postulated to be mainly due to difference of digestibility of each protein source in the juvenile abalone. Improvement of digestibility of white fishmeal will be required for development of practical abalone feeds.抄録全体を表示PDF形式でダウンロード (1019K) -
赤羽 孝之, 千原 聡, 仁木 保, 佐野 猛, 土屋 隆英, 野口 敏, 大神 弘司, 松本 重一郎1985 年 51 巻 11 号 p. 1841-1846
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーTo obtain basic knowledge for processing of the meat products, such as, kamabokos, sausages, and hams, the myofibrillar proteins of rabbit, carp, and scallop were isolated and submitted to the differential scanning calorimetry (DSC). Myosin preparations gave broadly dispersed endothermic regions in each of which a peak was found at 62°C for rabbit(R), 50°C for carp(C), and 40°C for scallop(S). LMM's gave a single peak at 60°C(R)and 47°C(C). The peaks of myosins reflected the denaturation of the LMM portion of the myosin molecule. Actins showed a peak at 82°C(R), 75°C(C), and 77°C(S). In the crude actin, the actin's peak was accompanied by a peak at 58°C(R), 53°C(C), or 42°C(S), each of which was attributed to the regulatory proteins. The natural actomyosin preparations illustrated 2 peaks at 49°C and 62°C for rabbit and 41°C and 52°C for scallop, but that of carp gave 3 peaks at 43°C, 53°C, and 68°C. Each second peak was ascribed to myosin. None of the rest were found to be correlatable with any of the actin, myosin, or the regulatory proteins and thus these peaks were assigned to some conjugate derivatives of actin and myosin. The peak top temperatures, i.e., the heat denaturation temperatures, of the respective proteins were found to be different for the different animal species and an order of “rabbit, carp, and scallop” was commonly observed with a little exception in the case with scallop actin. The former descreasing order was related to the order of the habitat temperatures of the tested animals.抄録全体を表示PDF形式でダウンロード (501K) -
山田 真知子, 鶴田 新生, 吉田 陽一1985 年 51 巻 11 号 p. 1847-1852
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーMarine planktonic diatom Skeletonema costatum (GREV.) CLEVE is a notorious phytoplankton which often caused red tide in the coastal waters anywhere. S. costatum was found to grow and form in/on an agar plate in this study whereas almost centric diatoms had been scarcely grown on the solidified medium.
S. costatum used were field samples from Dokai Bay, Hibiki Nada, and Suho Nada, Northern Kyushu, and several clonal strains of uni-algal cultures and axenic cultures from these marine regions. The culture of this species was mainly done by mixed plate method with the agar medium containing various nutrients under the conditions of 1.0-8.0Klx for 14h per day and about 25°C.
Most strains of S. costatum used grew well and formed brown colonies in/on an agar plate.These colonies were observable in a visual manner within eight days of incubation. Colonies had disk-like on an agar plate but irregular shapes in it. The cells resuspended into the liquid medium from the colonies in/on agar plates grew as well as the cultures before inoculating into the agar medium. Several strains of S. costatum of axenic cultures grew better in/on agar plates with trypticase than in/on these without it.抄録全体を表示PDF形式でダウンロード (1318K) -
オマール シャーバン, 落合 芳博, 渡部 終五, 橋本 周久1985 年 51 巻 11 号 p. 1853-1858
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーSome attempts were made to find the reasonable conditions of frozen storage of Alaska pollack meat paste (“surimi”).
Small blocks of Alaska pollack surimi were kept frozen at -20°, -30°, -40°, -60° and -80°C for one year and changes in muscle protein composition, SDS-polyacrylamide gel electrophoretic and ultracentrifugal sedimentation patterns of muscle protein fractions, and gel (kamaboko)-forming ability were followed at due intervals.
At -20°C, myofibrillar proteins were gradually denatured, resulting in decreases of extractability and gel-forming ability, and in changes of ultracentrifugal pattern. At -30°C, denaturation of those proteins proceeded much more slowly than at -40°C. In contrast, no or little denaturation of myofibrillar proteins occurred below -40°C.
It was concluded that -30°C is the most reasonable temperature for a short term storage up to several months, whereas -40°C is preferable for a long term storage up to one year.抄録全体を表示PDF形式でダウンロード (1649K) -
菊地 幹夫1985 年 51 巻 11 号 p. 1859-1864
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーTo predict the behavior of the surfactants used in the new domestic phosphate-free-built detergents in natural waters, the effect of water temperature and chemical structure of the surfactants on primary biodegradation was examined by a river die-away test using the water collected from Tama River. The extent of biodegradation was dependent on water temperature and varied between the surfactant types tested. Alkyl sulfates or alkyl poly(oxyethylene) ethers were biodegraded rapidly at high to low water temperature. Decreased biodegradation rates were observed for alkylpoly(oxyethylene) sulfates and α-olefin sulfonates. Linear alkylbenzenesulfonates (LAS) or alkylphenyl poly(oxyethylene) ethers were biodegraded moderately at high water temperature, but were poor at low water temperature.
These results suggest that large quantities of LAS, being most widely used until now, may persist in natural waters at lower water temperature. The use of the new detergent surfactants may reduce a surfactant concentration in natural waters, as they would biodegrade more rapidly than LAS.抄録全体を表示PDF形式でダウンロード (391K) -
坂田 一浩, 松宮 政弘, 望月 篤, 大竹 茂夫1985 年 51 巻 11 号 p. 1865-1870
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーActomyosin prepared from the ordinary muscle of pacific mackerel Scomber japonicus was denatured by the crude enzymes obtained from the above mentioned muscle of mackerel at pH 5.0 in the presence and the absence of pepstatin, the typical inhibitor of cathepsin D. Thus, it has been presumed that other than cathepsin D there were some proteases which denatured the actomyosin of the ordinary muscle of pacific mackerel at about pH 5.
Optimum pH's of hemoglobin substrate were 5.4 being measured by the Cu-Folin method and at 5-6 by the ninhydrin one.
The enzymes fractionated by Sephadex G-75 column chromatography, were inhibited by leupeptin and iodoacetic acid and slightly activated by L-cysteine. From this result, it has been assumed that the enzymes would be acid thiol proteases.
The enzymes hydrolyzed the synthetic substrate Z-Phe-Arg-MCA which is sensitive to both cathepsins B and L, but inactive on Arg-MCA which is known to be susceptible to cathepsin H.
From these results, it has been confirmed that there were acid thiol proteases which denatured or autolyzed the actomyosin of the ordinary muscle of pacific mackerel, and that the proteases might be cathepsins B or L, or the like.抄録全体を表示PDF形式でダウンロード (1299K) -
境 正, 水光 正仁, 坂口 宏海1985 年 51 巻 11 号 p. 1871-1874
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThe gallbladder bile of red sea bream Pagrus major was analyzed by TLC and HPLC.
TLC pattern shows only one blue band and some yellow bands. Pigments extracted from blue band were analyzed by HPLC. Two peaks appeared. Judging from the absorbance at 365 and 436 nm and the retention time, the pigment in first minor peak may be bilirubin diglu-curonide. The retention time of second major peak was equal to that of biliverdin IXα. The blue pigment in second peak was reduced with NaBH4 and analyzed by HPLC. The retention time of reduced pigment was same as that of bilirubin IXα. The blue pigment was methylated with BF3-methanol and analyzed by HPLC. The retention times of methylated pigment and biliverdin IXα dimethylester were the same. These results indicate that the blue pigment is biliverdin IXα and only biliverdin IXα exists as verdinoids in the bile of red sea bream.抄録全体を表示PDF形式でダウンロード (1024K) -
カブリング Ｆ．, 羽田野 六男, 座間 宏一1985 年 51 巻 11 号 p. 1875-1882
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーSardine myofibrillar protein was acetylated by reacting acetic anhydride at 0°C and pH 8.5. The degree of acetylation of this protein was 92.6%. The acetylated protein showed no specific Ca2+ ATPase activity and little streaming birefringence. Lipid content was slightly reduced to 25.6% from 25.8% of the original myofibrillar protein. The acetylated protein was water soluble at pH 7.0. The solubility was not affected by NaC1 concentration of up to 5%. The isoelectric point was pH 4.0. The protein in aqueous solution was neither precipitated nor coagulated uponheating at 100°C for 10min. The rheological behavior showed shear-thinning at all concentrations of untreated and Triton X-100 treated types of myofibrillar protein and its acetylated protein. However, the acetylated protein showed a Newtonian flow behavior at 0.75%, but tended to exhibit shear-thickening at 0.25%. A shift in molecular weight distribution to lower species occurred when the myofibrillar protein was exhaustively acetylated. Data are also presented on some nutritional properties of the acetylated myofibrillar protein.抄録全体を表示PDF形式でダウンロード (613K) -
鶴田 新生, 大貝 政治, 上野 俊士郎, 山田 真知子1985 年 51 巻 11 号 p. 1883-1886
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThis study dealt with the influence of chlorinity on the growth of Skeletonema costatum, which was collected from the Yatsushiro Sea and Dokai Bay, in the laboratory culture. The culture was kept in the incubator at six different temperatures.
Two types of cultivation showed good growth at 25°C and the optimal chlorinity ranged from 14.8‰ to 20.1‰, in Yatsushiro type, and from 12.7‰ to 20.1‰ in Dokai type. At the other temperatures, the range of optimal chlorinity was found to show a little variation in each type.
The cell diameter and the length of pervalvar axis varied with the chlorinity and the temperature, and it was found that there was a striking difference in the two types.
Therefore, it was considered that both types of S. costatum were ecotypes adapted to the different water quality at the collecting stations.抄録全体を表示PDF形式でダウンロード (267K) -
岡田 猛, 太田 冬雄, 猪上 徳雄, 秋場 稔1985 年 51 巻 11 号 p. 1887-1892
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThe effect of salt concentration and storage temperature on the freezing denaturation of carp myosin B was investigated by means of remaining Ca-ATPase activity. Myosin B solution was frozen at a definite freezing rate until -5 and -20°C, and stored at -5 and -20°C, respectively.
1) As to the effect of KCl concentration, in the case of frozen storage at -5°C, a higher initial KCl concentration of myosin B solution before freezing resulted in a greater denaturation. On the other hand, in case of -20°C, little change of the activity was found, irrespective of the ionic strength of the solutions. 2) With respect to the effect of the storage temperature, in the case of storing in 0.05M KCl, no difference of the activity was found between -5°C and -20°C, whereas myosin B in the ionic strength range 0.2 to 0.6 was denatured faster at -5°C than at -20°C. 3) When myosin B solution adjusted the KCl concentration to 1.33M (the critical concentration of the KCl-water solution at -5°C) was stored under unfrozen conditions in the temperature range of -5 to 30°C, the Ca-ATPase activity showed the most stable value at 10°C and the activity decreased with an increase and a decrease of temperature from 10°C. 4) The above findings indicate that the remaining activity is affected by the amount of unfrozen KCl solution which is concentrated to the critical point at -5°C.抄録全体を表示PDF形式でダウンロード (492K) -
示野 貞夫, 細川 秀毅, 竹田 正彦, 梶山 英俊, 会所 建志1985 年 51 巻 11 号 p. 1893-1898
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーYoung yellowtail were fed for 30 days on fish meal diets high in protein, lipid and carbohydrate, and a control diet containing both lipid and carbohydrate. The growth, feed conversion and body composition were determined. The growth and feed efficiency were high in the control group, medium in the high protein group and the high carbohydrate group, and low in the high lipid group. The control group showed the highest retention of protein and energy. Also in the contrl group, a protein required for 100g weight gain could be spared by about 28% by dietary addition of both lipid and carbohydrate. There were no marked differences in the body composition between groups, though slight differences were found in the content of fat and glycogen in the liver. These results indicate the importance of addition of a proper amount of carbohydrate as well as lipid to the diets of carnivorous fish such as yellowtail.抄録全体を表示PDF形式でダウンロード (441K) -
八木 浩, 若目田 篤, 新井 健一1985 年 51 巻 11 号 p. 1899-1905
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーThe effect of inorganic polyphosphates, such as sodium pyrophosphate, sodium tripolyphosphate, and sodium POLYPHOSPHATE (Food Additive) on thermal denaturation of carp myofibrils olution (in 0.50 M KCI, pH 7.0) was examined. As the concentration of inorganic polyphosphate increased in the myofibrils solution, thermal inactivation rate (kD) of myofibrillar Ca-ATPase was insignificantly increased. However, to the myofibrils solution containing various concentrations of inorganic polyphosphate, KCI was further added to make its ionic strength fixed. Then, the kD of these myofibrils was altered to be almost identical.
When sodium pyrophosphate and MgCl2 were added to the myofibrils solution, thermal inactivation rate of myofibrillar Ca-ATPase greatly increased. In addition, reaction mode of thermal inactivation of myofibrillar Ca-ATPase changed from a single first order process to biphasic first order behavior. It was also found that these changes were recovered upon addition of rabbit F-actin. These results strongly suggested that F-actin portion in the myofibrils was denatured more faster than its myosin portion during the treatment of myofibrils with inorganic pyrophosphate plus MgCl2 at high ionic strength.抄録全体を表示PDF形式でダウンロード (569K) -
岡内 正典, 福所 邦彦1985 年 51 巻 11 号 p. 1907
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (1279K) -
松野 隆男, 坂口 茂樹, 大久保 雅啓, 眞岡 孝至1985 年 51 巻 11 号 p. 1909
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (91K) -
鹿山 光, 佐道 哲也, 飯島 憲章, 浅田 敏雄, 五十嵐 紀子, 柴 忠明, 山口 了三, 平井 利生1985 年 51 巻 11 号 p. 1911
発行日: 1985/11/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (96K)
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