巻号一覧
31 巻, 9 号
選択された号の論文の19件中1～19を表示しています
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敦賀 花人1965 年 31 巻 9 号 p. 651-658
発行日: 1965/09/25
公開日: 2008/02/29
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マイワシの発生地を異にする群を判定する方法について安田 秀明1965 年 31 巻 9 号 p. 659-662
発行日: 1965/09/25
公開日: 2008/02/29
ジャーナル フリーUp to the present time and by using the averages of vertebral counts, the migration routes of fishes have not been fully traced.
So, the author attempted to employ the following method. Individuals having vertebral number of 50 or 51 occupy approximately 95 per cent in the samples. Variables k, l, m and n represent the number of fish individuals of a group having vertebral number of 49, 50, 51 and 52. Then each of the ratios, k/l, m/l and n/l is designated as the “frequency ratio of vertebral number.”
The author considered it more reliable to use the “frequency ratio of vertebral number” instead of the old method of average vertebral number, in plotting the migration course of a sardine group. The results are the following:
(1) The “frequency ratio of vertebral number” peculiar to regions. (Table 1, Fig. 1) The difference in frequency does not appear very large when reckoned according to year the fishes are hatched as seen between the 1939 and 1940 year classes. However a large difference is seen when analysed according to regions.
(2) A group having a large “frequency ratio of vertebral number” disappears by the time the fishes attain 10cm body-length.抄録全体を表示PDF形式でダウンロード (260K) -
10フートS-II型稚魚ネットの海上実験今西 一, 谷口 武夫, 片岡 昭吉1965 年 31 巻 9 号 p. 663-668
発行日: 1965/09/25
公開日: 2008/02/29
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蛋白消化酵素篠野 雄一, 吉原 卓1965 年 31 巻 9 号 p. 669-672
発行日: 1965/09/25
公開日: 2008/02/29
ジャーナル フリーIt was reported in the previous paper1) that the proteolytic enzymes in fin whale pancreas are not essentially different in the activity from those in the land mammals after the activa-tion process.
In this paper, proteolysis products in the extracts from sperm whale meat treated with the pancreas activate proteolytic enzymes are described.
The total solid, total N, total protein N and amino N in the extracts treated with the enzymes are given in Figs. 1, 2.
The free amino acid compositions of the extracts treated with the enzymes are given in Table 1. (Incubation temp., 45°C. Time of proteolysis, 60 min. The relative amount of the enzyme added, 1%)
Of free amino acid, methionine, isoleucine, leucine, tyrosine, phenylalanine and arginine were greatly increased in the amount by the enzyme treatment. The enzyme treatment was characterized by production of little bitter taste from meat.抄録全体を表示PDF形式でダウンロード (206K) -
魚肉に吸着したタイロシンの抗菌作用横関 源延, 根本 智恵子, 天野 慶之1965 年 31 巻 9 号 p. 673-679
発行日: 1965/09/25
公開日: 2008/02/29
ジャーナル フリーThe antibacterial action of tylosin adsorbed to fish meat protein was examined. It was found that adsorbed or bound tylosin shows no antibacterial activity and only free tylosin has an antibacterial action.
Thanks are given to Dr. K. OTAYA of Shionogi & Co. for providing samples of tylosin and literatures, and also to Mr. H. TOZAWA of this laboratory for suggestions on experimental methods.抄録全体を表示PDF形式でダウンロード (366K) -
鴻巣 章二, 藤本 健四郎, 高島 良子, 松下 輝子, 橋本 芳郎1965 年 31 巻 9 号 p. 680-686
発行日: 1965/09/25
公開日: 2008/02/29
ジャーナル フリーIn the pond-culture of prawn, Penaeus japonicus, the soft part of short-necked clam, Tapes japonica, is commonly used as a sole diet and it has been observed that the prawns are attracted intensely by its press-juice2). As a preliminary study for the exploitation of artificial feed mixture, the extracts of the soft part were analyzed for various components in order to identify the attractant and the amino acid composition of its protein was exa-mined.
Hot-water extracts of the homogenized soft part were made to 70% (v/v) concentration of EtOH, and organic acids, nucleotides and their related compounds, the amounts of quaternary ammonium bases and free amino acids before and after hydrolysis were determined on the super-natant. The precipitates were subjected to the determination of glycogen. The residues from hotwater extraction were applied to the analysis of amino acid composition of the protein.
Results obtained are summarized as follows.
1) The content of extractive nitrogen was remarkably higher than that reported so far on the same species5)24). A marked increase of α-amino nitrogen after acid-hydrolysis was observed (Table 1).
2) Among organic acids, succinic, fumaric and malic acid were detected. The amount of succinic acid, however, was far less than the data of other workers6)24)25) (Table 2).
3) The presence of a fairly large amount of IMP was recognized, differing from ordinary molluscan muscles26)27), and this may be due to the action of enzymes in the internal organs, which were present in our sample. AMP, UMP, ADP, inosine and hypoxanthine were also found (Table 2).
4) Quaternary ammonium bases were surveyed extensively, but only betaine, homarine and combined choline were detected (Table 2).
5) All amino acids except tryptophan were found in free forms. Among them, taurine, glycine, alanine, glutamic acid and arginine were predominant. After acid-hydrolysis, the amount of the amino acids except taurine and acid-labile ones increased considerably (Table 3). Most of the combined amino acids were considered to be brought into the extracts by the effect of heating in extraction (Table 4).
6) The total nitrogen calculated from these results amounted to 97.9% of the extractive nitrogen. Thus, the distribution of nitrogenous constituents in the extracts was elucidated抄録全体を表示PDF形式でダウンロード (493K) -
鈴木 康策, 会田 陽三, 小坂 部勇1965 年 31 巻 9 号 p. 687-691
発行日: 1965/09/25
公開日: 2008/02/29
ジャーナル フリーIt is desirable for tin plate to be coated with uniform thickness of tin layer from the point of durability of a can against corrosion. But the minimum average tin coating weight is only one that is standardized in JIS in regard to tin coating of tin plate. Therefore com-mercial tin plate has no indication to show the uniformity in thickness of tin coating layer. The present paper reports about the lack of uniformity in thickness of tin coating layer. Twelve sheets of tin plate (Table 1) were used as samples. The determination of tin was subjected on the whole to the method of JIS H 0402 and JIS G 3303. At first free tin and alloyed tin were electrolized separately (Fig. 1), and thereafter determined by iodometry. From the analysis of variance on data in Table 2, which are correspondent to test specimens shown in Fig. 2, tin plate is considered to have not always uniform thickness of tin layer. The lack of uniformity of the thickness is more probable in free tin layer than in alloyed tin layer, and in hot dipped tin plate than in electrolytic one. As for electrolytic tin plate, variation of thickness was not always detectable both in the free tin layer and in the alloyed tin layer.抄録全体を表示PDF形式でダウンロード (364K) -
大島 康義, 宗像 桂1965 年 31 巻 9 号 p. 694-698
発行日: 1965/09/25
公開日: 2008/02/29
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福永 一夫, 後藤 真康1965 年 31 巻 9 号 p. 699-702
発行日: 1965/09/25
公開日: 2008/02/29
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町田 喜弘, 大久保 勝夫, 小林 邦男1965 年 31 巻 9 号 p. 704-711
発行日: 1965/09/25
公開日: 2008/02/29
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日比谷 京, 保田 正人1965 年 31 巻 9 号 p. 713-715
発行日: 1965/09/25
公開日: 2008/02/29
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5-1. 有機燐剤石尾 真弥, 池末 弥1965 年 31 巻 9 号 p. 716-722
発行日: 1965/09/25
公開日: 2008/02/29
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板沢 靖男, 木村 関男1965 年 31 巻 9 号 p. 722-727
発行日: 1965/09/25
公開日: 2008/02/29
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6-1. 水産生物への影響およびPCPの河川への動態飯盛 勝義1965 年 31 巻 9 号 p. 728-731
発行日: 1965/09/25
公開日: 2008/02/29
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河辺 克巳, 池末 弥1965 年 31 巻 9 号 p. 732-738
発行日: 1965/09/25
公開日: 2008/02/29
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7-1. 農薬の土壌吸着能勢 和夫1965 年 31 巻 9 号 p. 740-743
発行日: 1965/09/25
公開日: 2008/02/29
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石尾 真弥1965 年 31 巻 9 号 p. 744-747
発行日: 1965/09/25
公開日: 2008/02/29
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富山 哲夫, 能勢 和夫1965 年 31 巻 9 号 p. 748-752
発行日: 1965/09/25
公開日: 2008/02/29
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笠原 正五郎, 稲葉 伝三郎1965 年 31 巻 9 号 p. 753-757
発行日: 1965/09/25
公開日: 2008/02/29
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