巻号一覧
45 巻, 7 号
選択された号の論文の27件中1～27を表示しています
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畑中 寛1979 年 45 巻 7 号 p. 805-810
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe spawning seasons of common octopus, Octopus vulgaris LAMARCK, off the northwest coast of Africa were determined, using the materials collected by Japanese trawlers during 1967 to 1975. The results obtained are as follows:
(1) Most of the males larger than 50cm in total length have spermatophores in all seasons. In the case of females, most of them larger than 70cm in total length are mature, at least in the spawning season, when the smaller ones less than 50cm are usually immature.
(2) It is clearly shown that there are two spawning seasons in spring (May-June) and autumn (September) at least in the Cap Blanc region.
(3) As for the Villa Cisneros and Nouakchott regions, it is suggested that there are two spawning seasons just as the Cap Blanc region, so far as the materials used are concerned.抄録全体を表示PDF形式でダウンロード (343K) -
畑中 寛1979 年 45 巻 7 号 p. 811-816
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe spawning season of common cuttlefish, Sepia officinalis officinalis LINNAEUS, off the northwest coast of Africa was estimated in this study, using the materials collected by Japanese trawlers during 1967 to 1975. The results obtained are as follows:
(1) Most of the cuttlefish attain sexual maturity at the mantle length of 12-14cm in males and about 14cm in females.
(2) Spawning occurs all the year round, but there is a distinct season from April to September.
(3) Spawning takes place mainly in coastal waters shallower than 40 meters.抄録全体を表示PDF形式でダウンロード (334K) -
原因菌に対するニホンウナギの免疫応答中井 敏博, 室賀 清邦1979 年 45 巻 7 号 p. 817-821
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーImmune response of the Japanese eel (Anguilla japonica; average weight: 70g) to formalinkilled Pseudomonas anguilliseptica cells administered intramuscularly was studied.
Experimental fish had no specific agglutinin acquired naturally. Agglutinating antibody was detected 2 weeks after vaccination at water temperatures from 15°C to 28°C and the antibody response persisted over a period of 7 weeks (maximum titer: 256), and even at 10°C it was detected as late as 7 weeks after vaccination (titer: 2). And the antibody response in the eels immunized at about 20°C was maintained over 5 months through the low temperature period (minimum: 7°C). The use of Freund's complete adjuvant had a promotive effect on the development of agglutinin titer (maximum: 4096). Vaccinated eels were highly protected against experimental infection with virulent P. anguilliseptica, and this protective immune response was demonstrated even after wintering.
These results suggest that this vaccination method will provide cultured eels with protective immunity against naturally occurring red spot disease.抄録全体を表示PDF形式でダウンロード (343K) -
小栗 幹郎1979 年 45 巻 7 号 p. 823-827
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーUsing Bowie's and other staining methods, histological examinations were made on seven kinds of endocrine and three kinds of exocrine glands of fish, and the fbllowing results were obtained. Bowie's method is recommended for demonstration of the cellular secretorty granules in BROCKMANN body, corpuscle of STANNIUS, renal juxtaglomerular cells, pancreatic acinar cells, and gastric zymogenie cells. Use of this method for differentiation gave excellent results in the secretory granules of A-and B-cells of Brockmann body. Furthermore, Bowie's method is suitable for staining the neuro-secretory inclusion in the preoptic neurosecretory cells, STH-and ACTH-cells of pituitary gland, and also colloid in the lumen of thyroid follicle. However, this method is not applicable for staining the chromaffin and interrenal cells of the adrenal gland, cells of uitimobranchial gland, and also the epidermal mucous cells of fish skin.抄録全体を表示PDF形式でダウンロード (493K) -
室賀 清邦, 高橋 誓, 山野井 英夫, 西淵 光昭1979 年 45 巻 7 号 p. 829-834
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーIn the summer of 1977, a local epizootic occurred among wild and cultured populations of ayu in Shiga Prefecture. A vibrio was isolated from diseased fish showing petechie on the body surface and congestion of the internal organs. This vibrio was confirmed to be the causative agent of the disease by artificial infection in healthy ayu.
The isolate was examined for DNA base composition and DNA homology as well as morphological, physiological, biochemical and serological characteristics.
Biochemically and physiologicaly, the organism was very similar to Vibrio cholerae but it did not show positive agglutinating reaction against anti-V. choterae sera (Ogawa and Inaba). The percent guanine plus cytosine content was 47.0-47.7. The DNA homology value between the isolate and V. cholerae NIH35A3 was 86%.
On the basis of the results obtained, the organism was classified as non-cholera vibrio.抄録全体を表示PDF形式でダウンロード (513K) -
堀内 三津幸, 甲賀 清美1979 年 45 巻 7 号 p. 835-840
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーRed spot disease of cultured eels, caused by Pseudomonas anguilliseptica, has been occurring in Japan since the early summer of 1971. Direct immunofluorescence (IF) was examined for rapid diagnosis of the disease in this study.
Antiserum was obtained from rabbit immunized with formalin-killed organisms (strain ST-1), The titer was 1:2048 by the agglutination test. IgG fraction was purified from the antiserum by ammonium sulfate precipitation and conjugated with fluorescein isothiocyanate. Free dye was removed by Sephadex gel filtration and the conjugate was purified by DEAE-cellulose column chromatography.
The F/P molar ratio of the conjugate was determined as 1.2. The conjugate had a staining titer of 1:32 and no cross-reaction was observed when Vibrio fisheri, Edwardsiella tarda, Streptococcus sp, and Ps. fluorescens were stained, but slight cross-reaction was seen in low dilution with Ps. putida, Ps. aeruginosa, Aeromonas sp. and Vibrio anguillarum.
The specific fluorescence in ST-1 cells was observed when acetone-fixed impression preparalion or frozen section from artificially infected eels was stained. ST-1 cell was more readily detected by IF than cultivation on nutrient agar. The specific fluorescence could be observed at least sixteen days at 37°C.
Although the conjugate was not evaluated on natural epizootics, the above data suggest that we could employ direct IF on improssion preparations for the rapid and reliable diagnosis of this disease.抄録全体を表示PDF形式でダウンロード (1281K) -
松田 由美子1979 年 45 巻 7 号 p. 841-843
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe effect of NaCl on the quality change of lyophilized carp myofibrils during storage was examined. Carp myofibrils were ground with 1.5% NaCl or with 1.5% NaCl+0.2% polyphosphates+5% sucrose. The former and the latter mixtures designated as samples A and B, respectively, were then freeze-dried at 60°C, ground into powder, and stored at a relative humidity of 42% for 3 months at 20°C. At suitable intervals, aliquots of the mixtures were taken out and examined as to the quality, using as indexes solubility in 0.6M KCl, relative viscosity and ATPase activity of 0.6M KCl extractable protein, and the total ATPase activity.
No protein protective effect was observed with sample A. On the other hand, a marked effect was observed with sample B, which was almost comparable to that shown by the control to which polyphosphates+sucrose had been added. Consequently, it was concluded that NaCl hardly affects the denaturation of lyophilized carp myofibrillar protein.抄録全体を表示PDF形式でダウンロード (199K) -
外薗 茂生, 田中 淑人, 片山 輝久, C. O. CHICHESTER, K. L. SIMPSON1979 年 45 巻 7 号 p. 845-848
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーEverted intestinal sacs were made from rainbow trout, Salmo gairdneri, and were used to investigate the intestinal transport of L-lysine-14C, in vitro. With incubatio for 2h at 37±1°C, L-Lysine was transported across the mid and posterior intestine. The uptake ratio of the mid intestine varied from 6.68% to 26.64% during the incubation period. Similarly, the ratio of the posterior segment also increased from 1.62% to 23.24%. The presence of 10mM glucose reduced the uptake of L-Lysine from 26.64% to 12.34% in the mid intestine and from 23.24% to 5.40% in the posterior one. 1mM ATP increased the uptake ratio of L-lysine from 26.64% to 41.72% in the mid intestine and from 23.24% to 32.92% in the posterior one. L-lysine transport by the fish intestine was stimulated by 1mM ATP but inhibited by 10mM glucose. The intestine of the rainbow trout extubited nearly the same transport activity for L-lysine between the two intestinal segments for 20mM glucose and 1mM ATP.抄録全体を表示PDF形式でダウンロード (276K) -
小林 達治, 藤井 国博1979 年 45 巻 7 号 p. 849-855
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリー106-107 cells of photosynthetic bacteria, Rhodopseudomonas sp., in one gram dry sestonic matter were found in the red tide which formed in the southern Wakano-ura Bay, Wakayama Prefecture, on July 22, 1976. Microscopic observations revealed microbial cells, zooplankton and phytoplankton, clay particles and other materials in the red tide. The mechanism involved in the formation of red tide was studied by using a model system, and the participation of photosynthetic bacteria in the red tide formation is discussed.抄録全体を表示PDF形式でダウンロード (2143K) -
マイワシの死後硬直と抽出タンパク貭の性状高間 浩蔵, 羽田野 六男, 座間 宏一1979 年 45 巻 7 号 p. 857-859
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe post mortem chemical changes that take place in the flesh of iced sardine were studied. The extractability of myofibrillar protein from dark-fleshed fishes is known to be low, because the gel fraction is formed easily during extraction by the usual method. Thus a modified extraction method has been developed for the proteins of sardine flesh. Rigor mortis in sardine has a shorter duration than that in white-fleshed fishes. From this reason, the assessing of rigor mortis is an effective measure. Therefore, we tried a new device, a “rigorometer”, to measure rigor mortis instantly. The Post mortem stage of iced sardine was examined in relation to the pH value and rigor mortis; the onset of full rigor was found after 7 hr, the end of rigor after 15 hr, and the ultimate pH (5.5) after 17 hr. And in the stage of full rigor, the myofibrillar protein was highly extractable and had a relatively high Ca2+ ATPase activity.抄録全体を表示PDF形式でダウンロード (857K) -
マイワシ・サクシニル化筋原繊維タンパク質の化学的性質と機能特性羽田野 六男, 高野 秀明, 高間 浩蔵, Federico CABLING, 座間 宏一1979 年 45 巻 7 号 p. 861-865
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe sardine myofibrillar protein was succinylated by reacting with succinic anhydride; the degree of succinylation of this protein was 92%. The chemical and functional properties of the modified proteins were as follows: no specific Ca2+ ATPase activity was observed and the streaming birefringence was negative; the lipid content was reduced to 14% from 33% for the original myofibrillar protein; the water-soluble property was not affected by changes in NaCl concentration; the isoelectric point was around pH 3; the protein in aqueous solution was neither precipitated nor coagulated during heating at 100°C for 10 min; the rheological behavior in the relation of shear stress and rate of shear showed shear-thinning, which is characteristic of a pseudoplastic fluid; and the apparent viscosity tended to become low with the increase of protein concentration.
These functional properties appear to make succinylated protein potentially useful as an ingredient in our food system.抄録全体を表示PDF形式でダウンロード (306K) -
荒谷 孝昭, 脇 健, 岡野 正義, 水井 富美恵1979 年 45 巻 7 号 p. 867-871
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe present paper describes the seasonal variation of constituents such as sterol, hydrocarbon, higher fatty acid, and phytol fractions from Prasiola japonica YATABE.
The contents of campesterol and stigmasterol varied in a relatively parallel way during all seasons. They appeared to attain their maximum levels during the winter months, while the cholesterol and phytol contents were consistently low in all seasons.
cis-7-Heptadecene was characteristically present in appreciable amounts except during the summer months. Conversely, C18-unsaturated fatty acids rapidly increased from early summer to August and then rapidly decreased to a negligible amount in the winter months. Furthermore, it is important to note that no 28-isofucosterol was detected in any sample of any season.
The correlation between the seasonal variation of these constituents and the growth of the Prasiola japonica YATABE is discussed.抄録全体を表示PDF形式でダウンロード (396K) -
酒本 秀一, 米 康夫1979 年 45 巻 7 号 p. 873-877
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe mineral mixture (M-13), which consists of ferric citrate and sodium phosphate monobasic, was prepared. This study was conducted to compare the suitability of this mineral mixture for red sea bream nutrition with that of HALVER's mineral mixture. Red sea bream, Chrysophrys major, were fed diets with the M-13 mineral mixture (8g/100g diet) and HALVER's mineral mixture (4, 6, and 8g/100g diet) at 25°C over a 90 day period. No significant differences were recognized among these four groups in the following determinations: the growth rate, condition factor, feed efficiency, and the ratios of liver, intestine with adipose tissue, spleen, and heart weight to body weight; the Hb, Ht, RBC, MCH, MCV, MCHC, MCD and percentage of immature erythrocytes; the blood serum levels of total protein, total bilirubin, BUN, glucose, total cholesterol, triglyceride, phospholipid, Ca, inorganic P, Mg, Fe, TIBC, UIBC, and SISP; the activities of enzymes such as GOT, GPT, LDH, LAP, and ALP in the blood serum; the moisture, lipid, and glycogen contents of the dorsal muscle and liver; and the lipid, ash, Ca, and P content of the vertebrae. From these findings, it is concluded that the M-13 mineral mixture is equally as effective as HALVER's mineral mixture in red sea bream nutrition.抄録全体を表示PDF形式でダウンロード (338K) -
麦谷 泰雄, 河村 治夫, 荒津 茂徳1979 年 45 巻 7 号 p. 879-882
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe involvement of saccular carbonic anhydrase (CA) in otolith formation was studied in cultivated rainbow trout. CA activity was electrometrically determined in the sacculus, gill, and blood. In vitro calcium uptake by the otolith in sacculus-otolith preparations was also examined in the presence and absence of Diamox.
The sacculus contained CA in a concentration of 95 EU per g-wet tissue after correction for blood contamination. This activity was completely inhibited by Diamox. The gill and the blood had much higher CA activities of 1391 EU per g and 1544 EU per ml, respectively. In organ culture, the otolith showed a calcium uptake of 15.7×10-3μg per mg-dry tissue after 48h of incubation. Diamox significantly inhibited this uptake, by 21%.
These results were discussed in terms of the functional involvement of saccular CA in the carbonate formation of fish otoliths.抄録全体を表示PDF形式でダウンロード (892K) -
渡辺 武, 大和 史人, 北島 力, 藤田 矢郎, 米 康夫1979 年 45 巻 7 号 p. 883-889
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe relationship between the dietary value of rotifers, Brachionus plicatilis, and their content of ω3 highly unsaturated fatty acids (ω3HUFA), the essential fatty acids for red sea bream, was investigated by feeding them marine chlorella Chlorelta minurissima or freshwater chlarella Chlorelia regularis for 10 min to 7 days.
When marine chlorelia was used as a culture medium, the quite low content of ω3 HUFA in rotifers cultured with baker's yeast, Saccharomyces cerevisiae (Y-rotifers), increased in proportion to the culture period by the incorporation of 20:5 ω3 from marine chlorella, and reached a maximum at 27% in a two-day feeding. Furthermore, the dietary value of Y-rotifers for red sea bream larvae was found to be significantly improved by the secondary culture with marine chlorella for more than 6 h. Y-rotifers cultured secondarily with freshwater dhlorella were high in the contents of 18:2ω6 and 18:3ω3, but low in the content ofω3 HUFA and their dietary value was not much improved.
These results indicate that the contcnt of ω3 HUFA in the rotifers is the principal factor in the dietary value of rotifers as a living feed and that the high mortality observed frequently in red sea bream larvae induced by feeding them Y-rotifers as their sole feed is duo to an EFA deficiency in the fish.抄録全体を表示PDF形式でダウンロード (446K) -
工場内の空中落下微生物について藤田 八束, 宮崎 王希子, 金山 龍男1979 年 45 巻 7 号 p. 891-899
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーIn this study, we dealt with the air-borne microorganisms at the A, B, and C plants in April and July 1978.
1. Colony numbers of air-borne bacteria, yeasts, and molds were estimated by the exposure of nutrient or potato dextrose agar plates (9cm) for 15 minutes and successive incubation of the plates for 48 hours at 30°C and 37°C. At the A, B, and C plants, the average counts of the bacteria were 62.00, 26.79, and 52.96/plate in April, and 50.50, 39.72, and 49.10/plate in July. The average counts of yeasts and molds were 46.62 (17.86), 18.30 (8.09), and 27.21 (11.21) in April, and 12.92 (19.36), 17.98 (16.56), and 16.71 (15.36) in July.
2. Colony numbers of Staphylococcus aureus were determined similarly by using mannitol salt agar plates. The time of exposure was 30 minutes and the plates were incubated for 48 hours at 30°C. The typical isolates from each plate were identified by Bergey's manual (8th ed.). The average counts of Sta. aureus detected at the A, B, and C plants were 0.56, 0.26, and 2.06/plate in April, and 1.32, 2.09, and 1.79/plate in July respectively.
3. Colony numbers of coliform bacteria were determined by using desoxycholate agar plates. The duration of exposur was 60 minutes, and then, the plates were incubated for 24 hours at 37°C. Isolates from desoxycholate agar plates were identified as coliform bacteria by a complete test according to the methodology of the food hygiene law in Japan. The average counts of coliform bacteria at the A, B, and C plants were 0.34, 0.21, and 2.41/plate in April, and 2.50, 4.21, and 5.73/plate in July respectively.
These facts suggest that it is important to give careful attention to the air-borne microorganisms at the processing plants.抄録全体を表示PDF形式でダウンロード (609K) -
武田 道夫, 上田 正1979 年 45 巻 7 号 p. 901-904
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe accumulation of mercury and selenium in different tissues were followed by using commercially cultured young yellowtail, Seriola quinqueradiata. The levels of mercury increased significantly with growth in dorsal muscle of the fish fed mainly with sardines (mean mercury level is 0.05μg/g) and these concentrations were at similar levels to those of wild fish. On the other hand, the mercury levels in dorsal muscle of yellowtail fed with mackerel (mean mercury level is 0.09μg/g) alone were higher than those fed with sardines. The mercury level of liver was lower than that of dorsal muscle and independent of the latter. Heart tissue contained the highest amount of mercury among the organs analyzed. The mean ratios of methylmercury to total mercury of dorsal and dark muscle were about 65 and 85%, respectively. The correlation between the level of selenium and that of total mercury was significant in dorsal muscle. The mean molar ratios of selenium to mercury in dorsal, dark, and abdominal muscle were 19, 28, and 19, respectively.抄録全体を表示PDF形式でダウンロード (298K) -
浜田 盛承, 稲益 猷二1979 年 45 巻 7 号 p. 905-912
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe linear viscoelasticity of the three grades of KAMABOKO, and its relation to ASHI, textural quality, were studied in non-resonant forced oscillation under 0.54-98.7 Hz and 12-60°C.
The frequency and temperature dependences of shear storage modulus, loss modulus, and real part of the complex dynamic viscosity revealed that KAMABOKO was slightly crosslinked, and was a thermorheologically simple material. The temperature dependence of the shift factors of each grade of KAMABOKO did not conform to either the WLF equation or the Arrhenius one.
No marked differences in the dynamic viscoelasticity at very small strain and in the tem-perature dependence of the shift factors could be found among the three grades of KAMABOKO. It is, however, probable that the difference in the quality of KAMABOKO may appear in the relaxation spectrum for the longer relaxation time region than that studied.抄録全体を表示PDF形式でダウンロード (437K) -
渡辺 智明, 樋口 寧郎, 梅原 敏功, 大竹 茂夫1979 年 45 巻 7 号 p. 913-917
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe existence of a correlation between the kamaboko-forming ability and the inhibition of the rapid softening of the muscle of mackerel, Scomber japonicus, was investigated.
An alkaline solution was injected into the stomach of living mackerel in order to neutralize the gastric acid secreted therein, and the fishes were killed 30 minutes after the injection. They were separated into two groups in each experiment, one of which was left intact and the other eviscerated, and stored at a temperature of about 4°C.
Optical microscopy showed that the rapid softening of the muscle was inhibited by the alkaline solution treatment, but the kamaboko-forming ability was not affected by the treatment. This fact that the kamaboko-forming ability was not affected by the inhibition of the rapid softening was ascertained both by the experiment in which histamine solution was injected into the stomach in order to accelerate the softening and by the determination of the cathepsin D activity of the muscle. In all cases, the deterioration of the kamaboko-forming ability with the lapse of time was much lower for the eviscerated fishes than for the non-eviscerated ones.
The injection of sodium and calcium chloride solution into the stomach increased the kamaboko-forming ability, as compared with the results observed in the control and in the alkaline solution treatment.抄録全体を表示PDF形式でダウンロード (616K) -
荒木 繁, 猪川 倫好, 大房 剛, 西沢 一俊1979 年 45 巻 7 号 p. 919-924
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーA crude nitrate reductase solution was obtained from Porphyra yezoensis UEDA f. narawaensis MIURA, which had been cultivated on a cultivation ground at Tokyo Bay in Japan; the precipitate formed with ammonium sulfate on a 20 to 40% saturation was used as nitrate reductase material for the present study.
Chemically reduced FMN, FAD, and methyl viologen as well as NADH were all effective as electron donors in this enzyme reaction, but NADPH was ineffective. The Km values for nitrate and FMNH2 were 1.2×10-4M and 2×10-4M, respectively. The Km value for NADH was estimated to be nearly 5×10-5M, but some inhibitions were observed at the higher concentrations.
Thus, the Km values of the nitrate reductase from Porphyra were essentially the same as those from the higher plants and other algae, but the following facts were characteristic of this reductase. 1) The Porphyra enzyme showed different optimal pH and temperature values depending on electron donors used; they were pH 8.5 and 23-25°C with NADH-dependent activity, and pH 8.0 and 30°C with FMNH2 dependent activity. 2) The optimal temperature at 23-25°C of the NADH-dependent activity was lower than that of enzymes from other plants; this might reflect the fact that Porphyra thalli must be grown during a cold winter season. 3) The nitrate reductase was stimulated by addition of FAD; its Km value was estimated to be 1×10-7M.抄録全体を表示PDF形式でダウンロード (417K) -
酵素分解原田 勝彦, 山田 金次郎1979 年 45 巻 7 号 p. 925-928
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーIn order to investigate the microbial degradation of nitrosamines, the degrading activity of three strains of non-pathogenic microorganisms, i. e., Rhizopus oryzae, Streptococcus cremoris, and Sccaromyces rouxii was examined.
These microorganism, were active in degrading NDMA, NDEA, NDPA, NPYR, and NPIP, NDPA bejng degraded more rapidly than the other nitrosamines. Rhizopus oryzae degraded 804 of NDPA, 40% of NPIP, 25% of NDEA, 20% of NPYR, and 10% of NDMA (precentages of amounts added to the medium). Streptococcus cremoris and Saccharomyces rouxii degraded 70% and 50% of NDPA respectively; the other nitrosamines were degraded to a smaller extent.
NDPA was also degraded faster in the suspensions of cells of these three strains precultured in the medium containing the nitrosamine than in the control cultures, i. e., the suspensions of cells harvested from the medium which did not contain NDPA.
The cell-free extract of Rhizopus oryzae grown in the medium containing either NDMA or NDPA was active in degrading these two nitrosamines.
These results suggest that the degradation of nitrosamines is conducted by an inducible enzyme.抄録全体を表示PDF形式でダウンロード (253K) -
尾形 博, 野村 正, 秦 満夫1979 年 45 巻 7 号 p. 929-931
発行日: 1979/07/25
公開日: 2008/02/29
ジャーナル フリーThe concentrations of prostaglandin F2α in the ovarian tissues of the pond loach were measured by radioimmunoassay during the ovulatory process initiated by an intraperitoneal injection of human chorionic gonadotropin (HCG). The HCG treatment resulted in the rise of the prostaglandin F2α level of the tissues. But indomethacin, which is one of the blocking agents of prostaglandin biosynthesis, significantly depressed the increase of prostaglandin F2α. In the ovulatory process, although no changes of the levels were observed at 2 and 6h after the treatment, prostaglandin F2α increased about 3-fold at 12h and there was a very significant difference at 24h. It is possible to conclude from the results that endogenous prostaglandins are involved in the process of ovulation of the oviparous fish.抄録全体を表示PDF形式でダウンロード (221K) -
1979 年 45 巻 7 号 p. 935a
発行日: 1979年
公開日: 2008/04/22
ジャーナル フリーPDF形式でダウンロード (27K) -
1979 年 45 巻 7 号 p. 935b
発行日: 1979年
公開日: 2008/04/22
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1979 年 45 巻 7 号 p. 935c
発行日: 1979年
公開日: 2008/04/22
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1979 年 45 巻 7 号 p. 935d
発行日: 1979年
公開日: 2008/04/22
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1979 年 45 巻 7 号 p. 935e
発行日: 1979年
公開日: 2008/04/22
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