日本水産学会誌
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
21 巻, 10 号
選択された号の論文の16件中1~16を表示しています
  • Tasae KAWAKAMI
    1956 年 21 巻 10 号 p. 1047-1048
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
  • “漬け”と魚付について
    児島 俊平
    1956 年 21 巻 10 号 p. 1049-1052
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    The dolphin, Coryphaena hippurus Linne, is known as one of many species of fish which seem to have a peculiar disposition to follow a floating substance in the sea, sometimes taking shelter under it. Making use of this habit, a type of fishery for the dolphin has developed along the coastal area of the Japan Sea, where bundles of bamboo poles, each built like a raft (Fig. 1) are set at interval in the sea in order to provide shelters for the fish. When a sufficient number of the fish is found sheltering under a raft, fishermen, enclose and capture them in a purse seine.
    The present study is an attempt to find whether or not the length of time in which a bamboo raft is left in the sea to provide shelters would affect the number of the fish coming under it. For this purpose a series of observation were carried out with the raft-shelters set for various length of time during June to October 1954 in the area adjacent to the Shimane Prefectural Fisheries Experimental Station. The number of the fish observed sheltering under different rafts is indicated in Table 1 together with the length of period for which the rafts were used for the shelters.
    The relationships between the duration of using the raft-shelter and the number of the sheltering fish are plotted in figure 3 in accordance with two groups of the shelters, old and new ones. In case of the old shelter A, the relationship may be expressed as Y=15.8-0.46X; while, in the new shelter B, Y=0.61X.
    The evidence may be suggestive that the dolphin would take shelter under a floating substance most likely because of seeking food available more easily there than anywhere else. It is believed that the shelter may furnish a favorable environment for chains of food organisms for the fish, though a further study should be conducted to prove the assumption.
  • 粘質物の純粋分離
    中村 武彦
    1956 年 21 巻 10 号 p. 1053-1056
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    The method used by MORI and TSUCHIYA for the study of carrageenin was adopted but immediate filtration of obtained extracts was done by the present author. A cold water extract was first prepared from 100g. of the alga which had been rinsed with fresh water, and then freed from the extract, the material underwent hot water extraction. Filtration of the above two extracts gave rise to a filtrate and a residue for each.
    Four kinds of fluid were thus obtained with properties as listed in table 1. Partial hydrolysation under conditions tabulated in table 2 was followed by dialysis. Addition of BaCl2 solution and methanol precipitated Ba salts from the liquids. The Ba salts were then dissolved wish hot water and again precipitated by BaCl2.
    This procedure was repeated several times to get purification of the stuffs. Finally drying in vacuo at a room temperature facilitated analysis as given in table 3.
    It should be admitted that the materials yielded to analysis were not pure since a small amount of nitrogenous compounds was recognized in them. Yet a ratio of sugar residue to a sulphate was almost the same for the four stuffs, namely, 1:1. Color reaction was the same for the sugar components of the four. This suggests existence of sugar of the same chemical composition in them.
  • 構成糖に関する研究
    中村 武彦
    1956 年 21 巻 10 号 p. 1057-1061
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    Cold extract was obtained from 1kg. of the alga by the method adopted in the previous paper. Nitrogen-free barium salt was prepared from filtrate of the above extract, with the ratio of sugar residue to combined sulfate as 1:1.
    With a view to clarify sugar components of this salt, hydrolysation with 3% H2SO4 in a water bath for 2.5 hours was followed by complete neutralization with Ba(OH)2 solution. The fluid was thickened to a consistency of syrup in vacuo at temperatures below 40°C.
    The syrup was ascendingly chromatographed on No. 2 Toyo Filter Paper. Three spots were made visible on the paper with P-anisidinehydrochloride as tabulated in table 1. Chromatographical separation of component sugars was done as follows: First, take a sheet of the filter paper 30cm. in width. The syrup was drawn on it as a transverse strip 3mm. in width at a height of 6cm. from the lower edge. Then it was chromatographed as mentioned above. After a lapse of 24 hours, three locations (upper, middle and lower) were cut off according to Rf values. Hot water extractions were identified by color reaction, chromatography or some other methods. (Table 2 and 3).
    The results obtained may be summarized as follows:
    (1) The upper represents an unknown sugar. This is not fructose although it gives SELIWANOFF ketose reaction. An attempt to prove it as anhydro-galactosephenylosazone has been futile.
    (2) The middle is likely to represent glucuron since it shows DISCHE's reactions (Figs. 1 and 2).
    (3) The lower corresponds to galactose since it gives α-methylphenylhydrazone (m. p. 190°).
    It may be mentioned that proportion of glucuron to anhydro-sugar (assumed), and galactose nearly runs as 1:3:12.
  • 幽門垂におけるアンモニア生成の機構について (1)
    柏田 研一
    1956 年 21 巻 10 号 p. 1062-1065
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    Pyloric coeca contains generally scores mg. % of ammonia even when it is in fresh state, and this ammonia increases gradually together with the progress of autolysis. In the studies reported in this paper the author dealt with the mechanism of these significant phenomena. In this study the extracts of fresh pyloric coeca was added to several substances-urea, amino acids, adenine, guanine, glutamine, asparagine, creatine, creatinine, guanidine and methyl-guanidine, and they were reacted under a definite condition, but no ammonia formation was perceptible. By these experiments, it is suggested that the ammonia seems to be a decomposing product in some new enzymic reaction.
  • 幽門垂におけるアンモニア生成の機構について (2)
    柏田 研一
    1956 年 21 巻 10 号 p. 1066-1069
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    In order to search the mechanism of ammonia formation in pyloric cceca, changes in nitrogen distribution with the progress of autolysis were studied. The results obtained can be summarized as follows.
    Soluble nitrogen, ammonia, amino acid especially monoamino acid, non-precipitable nitrogen by Pb-acetate or phosphotungstic acid, increased in the course of autolysis of pyloric coeca; while precipitable nitrogen by Pb-acetate and organic base nitrogen decreased with the progress of autolysis. By investigating the results in full detail it was ascertained that in other fraction than the Pb-acetate precipitate any possible precursor of ammonia could be detected.
  • 斗ヶ沢 宜久, 勝又 悌三
    1956 年 21 巻 10 号 p. 1070-1075
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    Effect of metals on the activity of glycylglycine (GG) dipeptidase in pyloric caeca of bonito and yellow-tail was investigated. The results were shown as follows:
    1. The GG dipeptidase was greatly activated by Co++ and Mn++, as those from other sources, and also activated by Mg++ as the GG dipeptidase of tunny, while such an activation by Mg++ is not known for the enzyme from other sources.
    2. When Co++, Mn++ and Mg++ were 10-3 M in concei tration, the activity of GG dipeptidase was found to be at a maximum.
    3. The GG dipeptidase was inhibited by Zn++, Pb++, Cd++ and Ag+, but not by Sr++.
    4. The effect of Mg and Mn salts on the activity of GG dipeptidase was not affected by their negative radicals (SO4"or Cl').
  • Escherichia coliの酵素活性に及ぼすビタミンKの影響
    北御門 学
    1956 年 21 巻 10 号 p. 1076-1081
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    This investigation was undertaken to study the effects of four compounds, K3, K5, K3-Na-bisulfite and 2 Methyl-1, 4-naphthohydroquinone diacetate, on the enzymatic activities of the intact cells of bacteria.
    (1) Succinic-, formic-, ethanol- and lactic-dehydrogenation was remarkably inhibtied by the prerrence of 14μg./ml. of K3, K5, and 24μg./ml. of K3-Na-bisulfite.
    (2) Oxidative deamination of L-glutamic acid, L-alanine and tryptophan was inhibited by 30μg./ml. of K3, K5, and 50μg./ml. of K3-Na-bisulfite.
    (3) 2 Methyl-1, 4-naphthohydroquinone diacetate had little effect on the dehydrogenation and the deamination at any degree of concentration tested.
    (4) On catalase- and hydrogenase-activity, reduction of nitrate to nitrite, no marked inhibitory action of the four compounds was recorded even at a relatively higher degree of concentration as 100μg./ml.
    (5) Decarboxylation of L-arginine and L-lysine was slightly accelerated even when the concentration of vitamin K compounds was as great as 150μg./ml.
  • コイ筋肉の凍結によるmyosin区ATPase活性と関連成分の変化について
    齊藤 要, 日高 富男
    1956 年 21 巻 10 号 p. 1082-1085
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    In this paper the authors dealt with the changes of carp muscle derived by the treatment of air freezing (-20°C) and thawing (25°C) in the following elements, the amount of myosin fraction-N, ATP, free SH group and ATPase activity.
    1) Through the process of freezing the apparent amount of myosin A fraction-N, obtained from carp muscle, seemed to increase by a little extent. The ATPase activity of myosin fraction showed hardly any change during the storage of the muscle within 24 hours at -20°C. The amount of SH group in the muscle showed comparatively rapid increase at the beginning of the freezing, while ATP showed not a little decreasing tendency. But any considerable change in the above mentioned substances was unperceived during about 3 hours after the freezing.
    2) At the first stage of thawing, the apparent amount of myosin A fraction-N in the muscle showed an increase, but a comparatively rapid reduction appeared at about 3 hours after the treatment. The separation of myosin fraction became almost impossible after 20-25 hours of thawing.
    The Qp value per 1mg of myosin A fraction-N, obtained from the muscle at the beginning of thawing, showed a reducing tendency. In this stage, the amount of ATP and SH group in the muscle decreased at a rapid speed, but at the the putrefaction term the amount of the latter increased again.
    3) In the case of thawing by direct immersion to the trichloroacetic acid, the amount of ATP in the muscle was larger than in the case of direct air contact thawing. (See Table 1)
    The amount of free inorg. -P in the mixed solution of ATP and purified myosin fraction showed not a little increase by being treated through the process of freezing, but the same solution, being stored at 0°C during the same stage, showed no considerable increase of inorg. -P.
  • 鶏の生長及び産卵に及ぼすアラ液化物の長期投與の効果
    富山 哲夫, 米 康夫, 広渡 一之, 小柳 武夫, 内田 正五郎, 徳田 寿男
    1956 年 21 巻 10 号 p. 1086-1089
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    Chicks fed a diet supplemented with the solubilized trimmings at a 2 or 3 per cent dry basis level for 8 to 32 weeks showed a significant growth response, (Table 1 and 2). The difference in body weight between the chicks fed the solubilized trimmings and the control chicks fed only all-vegetable protein ration was significant at a 5% level (Table 1). It is to be noted that earlier start of egg production has been found in the experimental group (Table 2). It has been shown that chicks which were raised on the ground without using battery-house gave an increase of 14 per cent in the growth rate after 9 weeks by feeding an all-vegetable protein ration with the solubilized trimmings at a 3 per cent level (Table 3).
  • 換羽期の産卵率低下の防止に対するアラ液化物の効果
    富山 哲夫, 米 康夫, 広渡 一之, 小柳 武夫, 内田 正五郎, 徳田 寿男
    1956 年 21 巻 10 号 p. 1090-1092
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    It has alraedy been reported that the solubilized trimmings at a 3 per cent level is effective to increase the egg production1). All the experiment, however, have been made in seasons favorable to the egg production. The present experiment has been undertaken to see whether or not the trimmings will show preventative effect to the reduction of egg production in autumn. It has clearly been shown that a decrease of egg production during the molting season could be prevented by the addition of the solubilized trimmngs at a 2.9 per cent level.
  • 殘滓液化物による産卵上昇効果に関する実地試験
    富山 哲夫, 米 康夫, 広渡 一之, 小柳 武夫, 内田 正五郎, 徳田 寿男
    1956 年 21 巻 10 号 p. 1093-1096
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    In all the experiments on egg production which have hitherto been carried out1-3), use was made of rather small number of hens and of the battery house.
    The present study has been carried out on one-year old hen without using the battery house and under conditions as practical as possible.
    The results obtained can be summarized as follows:
    1. The supplementation of the solubilized trimmings at a 5% dry basis level gave more egg production as compared with that of fish meal at a 10 per cent level.
    2. The partial replacement of the fresh trimmings with the solubilized trimmings yielded more or less a favorable effect on egg production.
    3. The supplementation of the solubilized trimmings at a 2.5 per cent dry basis level gave egg production similar to the control group, while a little increase was observed from July to September.
  • 魚肝カタラーゼの至適水素イオン濃度について
    福田 博業, 樋口 俊昭, 黒木 暘
    1956 年 21 巻 10 号 p. 1097-1099
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
    Catalase activities are determined on the liver extracts of the various species of teleost, and optimum pH of each species are shown graphycally. Optimum pH of liver catalase of the many saline water fishes are found to be 6.9-7.2, but of the several fresh water fishes are found at low optimum pH, 6.1-6.2. These low values of opt. pH seem to be characteristic of the fresh water fishes.
  • 河端 俊治, 石坂 公成, 三浦 利之, 佐々木 忠尚
    1956 年 21 巻 10 号 p. 1100
    発行日: 1956/02/25
    公開日: 2008/02/29
    ジャーナル フリー
  • 1956 年 21 巻 10 号 p. 1103a
    発行日: 1956年
    公開日: 2008/04/22
    ジャーナル フリー
  • 1956 年 21 巻 10 号 p. 1103b
    発行日: 1956年
    公開日: 2008/04/22
    ジャーナル フリー
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