巻号一覧
37 巻, 12 号
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アミノ酸のとりこみと生長促進効果今田 克, 斎藤 祐一1971 年 37 巻 12 号 p. 1125-1133
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリー1. Various kinds of amino acids were added to the culturemedium and its effect on the growth of red alga, Porphyra, were examined. From the results obtained the amino acids have been grouped as follows.
1) Highly promotive; L-arginine, DL-tryptophane, L-tyrosine, L-leucine.
2) Somewhat promotive; L-cystine, L-aspartate, L-threonine, L-phenylalanine, L-ornithine, L-lysine.
3) No effect; L-glutimate, L-alanine, L-Isoleucine, glycine, β-alanine.
2. The uptake of L-tyrosine, L-lysine, L-glutamate, urea or glucose by fronds was measured using 14C labeled compounds. Urea and the amino acids were incorpo-rated into the fronds during day light period and there appeared a close interaction of uptake and photosynthesis. However glucose was only incroporated during the dark period.抄録全体を表示PDF形式でダウンロード (554K) -
ノリ葉体のアミノ酸とりこみ部位と葉体内での消長今田 克, 斎藤 祐一1971 年 37 巻 12 号 p. 1134-1139
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーIn our previous paper, the uptake of amino acids and glucose by fronds were examined. In this paper the site of 14C incorporation in the fronds of porphyra was measured by autoradiographic. Methods and the incorporated amino acids or glucose were investigated by tracer technique.
1. The radioactivity was observed chiefly at the fringe of fronds but some radi-oactivity was also observed at the base section of fronds.
2. After the incorporation test with 14C labeled compounds, the fronds were hydr-olysed and the distribution of radiorctivity among amino acids were measured.
When one of the several amino acids was added, a higher recovery was observed from the corresponding portion, but the recovery rate changed with the kind of amino acid. when 14C labeled L-tyrosine was added, a higher ratio of the radio activity was recovered but when 14C labeled L-lysine or 14C labeled L-glutamate was added a lower ratio of the radioactivity was recovered.抄録全体を表示PDF形式でダウンロード (1101K) -
篠田 正俊, ジャヤシンハ Ｓ．Ｄ．Ｄ．1971 年 37 巻 12 号 p. 1140-1149
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーThe possibility of race separation for nigisu, Glossanodon semifasciatus (KISHINOUYE), was demonstrated and its biological implications were discussed. The otolith of nigisu showed various types, based on differences occurring in the appearance of the hyaline of opaque first growth zone, and the width of the hyaline band. The appearance of these considerable variations in the otolith type were suggested as being due, in the main, to differing seasonal growth conditions during the larval and post-larval periods. The early spawners might develop a wide hyaline zone as the first growth mark and the late spawners a narrow hyaline zone. However, if a fish is spawned at the time of the opaque zone formation, the otolith will have an opaque type of first growth region. Some differences in the growth rate between the early and the late spawning groups were estimated for each age or year class. The differences between the two groups were greater in the zero age-class than in older classes, and decreased with age.抄録全体を表示PDF形式でダウンロード (1430K) -
コイに対する飼料効果について福田 博業, 袈裟 丸倉基1971 年 37 巻 12 号 p. 1150-1156
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーMany reports have been published on the nutritive values of wheat germ as feed for poultry though no study has still been performed on wheat germ as feed for fish.
The present studies were carried out by the authors, for ovir a period of several years, to determine the feed efficiency of wheat germ for young carp, Cyprinus carpio, in their early stages of growth.
Results of our experiments ingicated that wheat germ was excellent a feed for carps as was certain animal feeds, such as white fish meal, pupa of silk worm and neomysis.
The value of other vegetable feeds were proned to be markedly lower than wheat germ.抄録全体を表示PDF形式でダウンロード (427K) -
加熱処理による飼料効果の改善福田 博業, 袈裟 丸倉基1971 年 37 巻 12 号 p. 1157-1162
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーThe excellent feed value of wheat germ for young carp, Cyprinus carpio, has been reported in a previous paper1).
Among earlier workers, GREEK et al.2) described that the feed value of raw wheat germ was improved by heating. This fact indicated the presence of a thermolabile factor which impaired digestion.
Experiments were carried out to confirm the results of previous works by utilizing the materials for a carp diet.
Heating of the raw wheat germ for feed was performed either by autoclaving (Wet method) or roasting (Dry method).
The results obtained are as follows;
1) The feed value of wheat germ was improved with moderate heat treatment.
2) Heated wheat germ by autoclaving or roasting showed much higher feed values than unheated wheat germ.
3) The feed value of the roasted feed appeared higher than the autoclaved preparation.
4) The highest feed efficiency (value) was obtained by roasting at 70-130°C for 10 to 20 min., and by autoclaving at 110°C for 20 min.抄録全体を表示PDF形式でダウンロード (308K) -
本多 勝司1971 年 37 巻 12 号 p. 1163-1167
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーTesting methods for studing the abrasion caused to netting twines have been mainly ex-plored by examining the consequence of its rubbing with other objects, other than itself.
The present paper deals with abrasion caused to cremona and polyethylene netting twines due to self-rub by using a special apparatus. The number of rubs were measured while under stress until the netting twines wore away to breaking point.
The results obtained are as follows;
1) The netting twines under dry conditions wore away more rapidly than those under wet conditions.
2) The number of rubs necessary for fracture decreased with the increase of twine load and increased with the increase of the frictional angle (the cross angle of two netting twines).
3) The number of rubs necessary for fracture (N) is indicated by the following equation:
N=k[(T-W)D/Wcos2 φ ]n
where the various letters have the following meanings respectively: k, a constant; T, tensile strength; W, load; D, diameter of netting twines; φ, twist angle of common helix; n, index number.抄録全体を表示PDF形式でダウンロード (289K) -
渋井 正1971 年 37 巻 12 号 p. 1168-1172
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーRed abalones Haliotis rufescens which in the coastal waters of California were transplanted to Mohne Inlet, Miyagi pref. and the investigations concerning their growth and early development were carried out. The results are summarized as follows.
1. Growth and gonadal maturation of the transplanted red abalone, H. rufescens were vigorous at a water temperature within the range of 14-20°C.
The spawning season of this species in Mohne Inlet was during late June and middle July.
2. With temperature stimulation measures the writer succeeded in the induction of spawning artificially. The early development of this species was almost the same as the Japanese abalones except in shell color. Beyond shell lengths of about one centimeter, the young shells grew and metamorphosed into the characteristic form of this species.
3. The growth rate of the youngs of the red abalone was almost the same as that of the Japanese abalone, H. discus hannai. However, in the case of the red abalone, the spawning season was initiated earlier than that of the Japanese abalone.
Therefore, considerable good results of rearing may be expected with the introduc-tion of this species.抄録全体を表示PDF形式でダウンロード (361K) -
渋井 正1971 年 37 巻 12 号 p. 1173-1176
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーQuantitative analysis on damages inflicted to young abalones Haliotis discus hannai by several different of predatory animals was examined under experimental conditions.
The results are summarized as follows.
1. Large sized strf-fish, Ditrema temmincki, at body lengths of more than 20cm prey on young abalones during day time.
2. The crabs, Charybdis japonica, Cancer amphiotus, and Pugettia quadridens proved to be predatory animals of young abalones. Charybdis japonica, 8cm long in carapace width, often took to young abalones 16-37mm long in shell length.
In the case of Cancer amphioetus, of about 2.5cm long in carapace width, the maximum shell length of young abalones taken was about 15mm long. In the case of Pugettia quadridens, of about 3.5cm long in carapace width, it could take young abalones having shell lengths below 10mm.
These crabs commonly prey on the young abalones during night time.抄録全体を表示PDF形式でダウンロード (254K) -
沼知 健一1971 年 37 巻 12 号 p. 1177-1181
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーThree electrophoretic patterns of catalase were demonstrated in the liver extracts of the black rockfish, Sebastes inermis. All the types gave only single bands of catalase activity on the gel, but were distinguishable by mobility. Analysis of phenotype frequencies in the two samples consisting of 142 specimens indicated that those patterns are attributed to two alleles at an autosomal locus. The alleles were proved to be independent of the size of the fish, and to be maintained in the same frequency among the samples collected at different seasons. The catalase patterns were most clearly demonstrated by the negative iodine-starch reaction, and satisfactorily preserved in acetic acid. The method based on the enze-matic oxidation of aromatic amines was not successful for localizing the enzyme on the gel.抄録全体を表示PDF形式でダウンロード (987K) -
ゲル区分たん白質の性質梅本 滋1971 年 37 巻 12 号 p. 1182-1186
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーIt was previously reported that the turbid protein extracts from fish muscle contained a gel fraction. In order to investigate the relationship between the gel fraction and myofibrillar protein, some properties of the former were examined. The gel fraction was prepared from frozen- or ice-stored muscles of both the flatfish, Kareius bicoloratus, and Alaska pollack, Theragra charcogramma, by extraction using KCl-phosphate buffer (I=0.5, pH 7.2) and cen-trifugal sedimentation at 30, 000-40, 000×g.
The absorption curve of the gel fraction was similar to that of actomyosin. The gel fraction did not show streaming birefringence by OKADA's apparatus. On addition of ATP to the gel fraction at low ionic strength, superprecipitation occurred forming a loose slurry-like precipitate. The viscosity of the redispersed solution (I=0.5) of the gel fraction fell sharply on addition of ATP, but the ATP sensitivity values were not very high. The gel fraction had Mg-ATPase activity at low ionic strength (0.03 M KCl). These properties of the gel fraction are similar to that of actomyosin with the exception of streaming birefringence. As a result, the author considers that the gel fraction may contain an aggregated protein which involves myofibrillar protein and that the shape of the aggregate may not be so thread-like.抄録全体を表示PDF形式でダウンロード (290K) -
CTC耐性株の性質柿本 大壱, 外山 哲也, 鮫島 忠博1971 年 37 巻 12 号 p. 1187-1190
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーIn order to resolve the antibiotic mechanism of CTC, the resistant strain obtained by repeating culture in CTC-containing medium and the sensitive strain, ie., the original, were compared on the basis of morphological and physiological properties. The results obtained were as follows;
1. No remarkable difference in characteristics or morphology were observed between the original and the resistant strains.
2. The most striking difference was observed in the nutritional requirements. That is, the original could not grow in M 10 medium, while the resistant did well.
3. Delayed spore formation was observed in the resistant compared with the original.抄録全体を表示PDF形式でダウンロード (144K) -
冷凍すり身のたん白質溶出量とかまぼこ形成能岩田 和士, 岡田 稔1971 年 37 巻 12 号 p. 1191-1198
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーChanges in protein extractability and Kamaboko forming ability of muscle of Alaska pollack during processing into frozen Surimi and cold storage at -10°C up to three months, were examined. The protein extractability of the washed fish muscle was not much less than minced muscle, when 0.45 M KCl-phosphate buffer solution was used as an extractant, but the amount of extractable protein in Surimi decreased markedly during cold storage at -10°C.
When frozen Surimi samples were extracted with 0.45 M KCl-phosphate buffer containing 1.5 M urea, the protein extractability was considerably higher than with the extractant con-taining no urea. The myofibrillar protein extractability of Muen-surimi was higher than that of Kaen-surimi. An addition of 10 mM sodium sulfite to an extractant containing urea did not result in higher extractability. The urea presumably cleaved intermolecular hydrogen bonds formed in both Surimi. However, it is assumed that intermolecular disulfide bridges may not be formed.
Muen-surimi stored at -l0°C deteriorated faster than Kaen-surimi. It became useless as a material for Kamaboko after approximately 1.5 months, while Kaen-surimi maintained a good Kamaboko forming ability up to 2.5-3.0 months in cold storage.抄録全体を表示PDF形式でダウンロード (507K) -
日高 富男1971 年 37 巻 12 号 p. 1199-1206
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーThe author carried out the isolation of marine bacteriophages from sea water and deter-mined the morphological character of five of them. The host bacteria isolated belong to Pseudomonas (2 strains), Vibrio (2), and Flavobacterium (1). The isolated phages are highly specific to the original host and are virulent. The structure of the phage particles varies widely. Remarkable variety was observed especially in the tail structure. They are divided into three morphological groups; phage with a tail possessing a contractile sheath, phages with a long and non-contracting tail, and phages with a short tail. It is difficult to find a morphological property of marine bacteriophages in this experiment. It is certain that they vary widely in their morphology.抄録全体を表示PDF形式でダウンロード (2242K) -
上部空隙および液汁部の鉄露出面に対する硫化鉄黒変木村 昇, 秋場 稔1971 年 37 巻 12 号 p. 1207-1213
発行日: 1971/12/25
公開日: 2008/02/29
ジャーナル フリーIron-sulfide blackening of the headspace and liquid parts of tin cans was investi-gated.
In the lid and bottom of the C-enameled can, a definite area of iron layer was exposed by scratching the enamel and the tin layers. These cans were filled to 2/3 volume with cysteine solution containing 0 to 4% NaCl at various pH values from 5 to 8. Other cans were 2/3 filled with an extractive of King crab meat containing the cysteine solution. The blackening of the iron surface was observed organoleptically and quantitatively for 6 months at 37°C.
In the headspace, the blackening was accelerated by lower pH values and higher concentrations of NaCl. On the contrary, blackening of the liquid parts was remarka-ble at higher pH values and lower concentrations of NaCl. The existence of copper in the crab extractives accelerated the blackening. The acceleration was significant in the liquid part but not in the headspace.抄録全体を表示PDF形式でダウンロード (518K)
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