巻号一覧
54 巻, 1 号
選択された号の論文の29件中1～29を表示しています
- |<
- <
- 1
- >
- >|
-
岸田 達1988 年 54 巻 1 号 p. 1-8
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーVertical and horizontal distribution of eggs and larvae of Japanese Spanish mackerel Scomberomorus niphonius was investigated during May and July from 1981 to 1983 in the central waters of the Seto Inland Sea.
At stations where seawater-density stratification was conspicuous, more than half of the eggs (excluding those at early and late stages of development) concentrated to the surface layer, while larvae occurred in the middle layer (during daytime). In less stratified area, eggs and larvae were more dispersed.
Seasonal shift was observed in their geographical distributions. In May, the early spawning season, eggs occurred mainly in Hiuchi-nada where the seawater was stratified and the surface temperature was the highest in the area investigated. In June and July, however, eggs were abundant in other areas where the water temperatures were comparatively low. Larvae showed similar distribution pattern with that of eggs.
The spawning of this fish in this area seems to be governed by the water temperature, especially at the surface where the seawater is stratified. The surface water temperature where eggs occurred ranged from 14.6 to 22.7°C.抄録全体を表示PDF形式でダウンロード (600K) -
王 尓光, 松田 皎1988 年 54 巻 1 号 p. 9-15
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーBy using a specially designed streamline frame, the drag of netting parallel to a water flow was measured at a range of values of mesh angle ∅, i.e. the half angle between two adjacent bars. The friction drag coefficient Cf of netting parallel to a flow based on the area of netting varies considerably with the ratio of twine diameter D to bar length L, i.e. D/L, and the mesh angle, while it decreases very slightly with increasce the Reynold's number based on the length of netting. At constant mesh angle, Cf increased linearly with the ratio D/L. The drag coefficient Cf was found to be constant over a range of either D or L, when both the ratio D/L and the mesh angle ∅ were kept constant. Varying the mesh angle ∅ for the same netting, Cf decreased slightly with increasing ∅ up to angles between 20° and 30°, but above 30°Cf increased considerably with ∅. From these experimental results, excepting angles below 20°, the following formula for friction drag coefficient Cf was derived Cf=0.11 √(D/L) tan ∅.抄録全体を表示PDF形式でダウンロード (449K) -
山本 勝太郎1988 年 54 巻 1 号 p. 17-22
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThis paper attempts to obtain a geometrical condition for the strand arrangement in a 8-strand braided rope, where the strand axis goes on drawing an elliptical helix around the rope axis, The geometrical development is based on three conditions as follows:
Strands in a pair are in contact among themselves without overlapping.
Two pairs of the same twisted strands are in contact once every half round.
Two pairs of the different twisted strands are in contact twice every quarter round.
Under the above three conditions, using the coordinate transformation with parallel moved distance h and rotated angle Ò, the values of semimajor axis a, semiminor axis b, coefficient c(=dls/dt, ls is the length of a strand axis, t the essentric angle of the ellipse). Ò, and h are calculated numerically. The results of the calculated arrangements of strand agree well with the observed ones.抄録全体を表示PDF形式でダウンロード (1756K) -
梨本 勝昭, 佐藤 修1988 年 54 巻 1 号 p. 23-25
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーFishing gears and aqua-culture facilities are fixed frequently using anchorpile which is driven into the sand of the sea bed. We studied the relation between the fixed force and the diameter and depth of the driven pile into sand.
Anchorpiles of various diameters which are made of steel pipe are driven into the sand at different depths. The piles were positioned in the water at high tide. The pile was left for twenty days, after which time a horizontal force was applied.
Horizontal component force was measured continuously until the pile was pulled out. In this paper the fixed force of the pile was the same as the maximum value of the horizontal component force recorded. The fixed force of the pile can be expressed as follows,
F=2.1(ρ-1)r1.4•D2.6×10-4
where, F(kgw) is the fixed force of the pile, r (cm) is the diameter of the pile, D (cm) is the depth of the driven pile into the sand, ρ is specific gravity of the sand.抄録全体を表示PDF形式でダウンロード (230K) -
藤原 俊司, ハンキン Ｄ．Ｇ．1988 年 54 巻 1 号 p. 27-31
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーOtoliths (sagittae) were removed from a sample of 801 sablefish collected at sea from commercial otter trawl vessels in northern California from April through August 1984. This study presents a detailed examination of aging discrepancies between a) surface and b) broken and burnt (section) otolith aging methods, and considers possible mechanisms responsible for discrepancies. Sablefish age assignments based on the broken and burnt (section) aging method were higher than those based on surface aging for fish exceeding about 5-7 years section age. Beyond these ages, discrepancies increased with increasing section ages. The surface aging method assumes that there will be continual radial growth with increasing fish age, but otolith radius measurements showed that rate of radial growth dramatically decreased with increasing age and made surface aging unreliable for all but young fish. In contrast, otolith thickness measurements increased linearly with increasing section age and were highly correlated with section ages. When growth in length becomes slow, then surface ages are probably not accurate and discrepancies between surface and section ages dramatically increase with increasing section age.抄録全体を表示PDF形式でダウンロード (347K) -
名越 誠, 中野 繁, 徳田 幸憲1988 年 54 巻 1 号 p. 33-38
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーChanges of microhabitat and food selection with growth in Oncorhynchus rhodurus were investigated in a Japanese mountain stream from May to November 1984, Microhabitat and food of the age 0 group were different from those of the older age groups until August. Both age groups, however, utilized similar microhabitat and food after September when the age 0 group attained 7cm in mean body length, Relation between utilization of resources by each age group and population dynamics was discussed.抄録全体を表示PDF形式でダウンロード (381K) -
樋渡 武彦, 梶原 武1988 年 54 巻 1 号 p. 39-43
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe individual of population growth and breeding of the hyalid amphipod Hyale barbicornis were examined at five temperatures of 12, 16, 20, 24 and 28°C in the laboratory. Males and females attained sexual maturity at the 10th instar (molted 9 times) and at the 11th instar (molted 10 times), respectively. The age and size at the time of sexual maturity in both sexes tended to decrease with increasing temperatures ( ?? : 35.0-109.0 days, 5.9-7.8mm; ?? : 31.8-51.0 days, 6.8-7.2mm). The daily growth rate of body length was higher in males than in females at all life stages. From hatching to sexual maturity, the daily growth rate was generally higher than at later stages. The intermolt period was shorter at higher temperatures. Maximum values of the average number of broods and the total number of offsprings per female throughout the life were 6.0 at 20°C and 67.5 individuals at 16°C, respectively. The number of flagellar segments of the second antenna of all the individuals of both sexes increased by a segment per molt until the 4th instar (six segments).抄録全体を表示PDF形式でダウンロード (372K) -
福田 頴穂, 桃山 和夫, 佐野 徳夫1988 年 54 巻 1 号 p. 45-48
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーIn December of 1983, giant tiger shrimp Penaeus monodon (10-35mm in BL) having acidophilic spherical inclusion bodies in hypertrophied nuclei of mid-gut gland epithelium, was found in Yamaguchi Prefecture, Japan. These shrimp had been reproduced from the broodstock of the shrimp imported from Taiwan to Yamaguchi Prefecture and cultured by a shrimp culturist.
By electron microscopy, it was found that the epithelial cells having inclusion bodies were infected with a baculovirus (76 × 325nm), and the inclusion body had a lattice array structure. From these observations, the virus was identified as Monodon Baculovirus (MBV). This is the first record of the detection of MBV in Japan. Since the population of the natural inhabitant of P. monodon is very small in the sea water area around Japan, the virus seems to be introduced from Taiwan accompanied with the broodstock importation.
The infectivity trials with MBV did not reveal any formation of inclusion body or abnormal mortality in post larval kuruma shrimp, P. japonicus.抄録全体を表示PDF形式でダウンロード (2105K) -
小林 博, 村田 修, 原田 輝雄1988 年 54 巻 1 号 p. 49-54
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーMeasurements of gill filaments and secondary lamellae are described in order to provide fundamental information about the gill area of the yellowtail Seriola quinqueradiata in relation to its growth. The measurements were carried out on 28 yellowtail ranging in weight from 4.3 to 1117g, which were divided into seven stages of growth. Analyses of the allometric relationship between the parameters of filaments and body weight were made in comparison with those of the carp. From the measurements of epithelial layer in the secondary lamellae, diffusing capacity of the gills was estimated with the aid of the Fick equation. Total gill area per unit fish was obtained in relation to body weight as shown in formula of Y=2290X0.686, (r=0.989). Gill area per unit body weight is great in the early stage of growth, but after stage IV no remarkable changes in gill area are found as a results of growth. Gill area per unit body weight was about 366 mm2/g. In comparison with those of other species, it is supposed that the yellowtail is placed somewhere at the lower end of the group of fast swimming fish.抄録全体を表示PDF形式でダウンロード (432K) -
立原 一憲, 木村 清朗1988 年 54 巻 1 号 p. 55-60
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーObservations on the life history of land-locked Ayu Plecoglossus altivelis were made in Lake Ikeda, in Kagoshima Pref., from 1981 to 1985.
In this study, two types of Ayu were recognized in its social behavior of immature adult fish in the Lake. One is territorial type and the other is non-territorial type. Some differences were found in the shape of dorsal fin and the color pattern of body between two social types. The territorial fish have longer posterior dorsal fin rays and darker fin membranes than those of non-territorial ones. The former have three clear yellow oval marks on their gill covers and anterior body sides, however, the latter have only one mark and its coloration is pale or faint. Thesevariations are not related with body size and sexuality but with the social type. It is suggested that large and clear yellow marks are signal for recognition of their status among owners of territory and for showing the domination of owner to non-territorial fish.
Thus, these differences between two social types of Ayu show a possibility of being applied to the evaluation of fishing ground of this species.抄録全体を表示PDF形式でダウンロード (1648K) -
小川 和夫1988 年 54 巻 1 号 p. 61-64
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーA description is made of the dovelopmental stagcs (from egg to adult) of Bivagina tai (Monogenea: Microcotylidae). The egg hatched at water temperature of 10-30°C. Average time required for hatching was 26.2, 11.4 and 6.8 days at 10, 20 and 30°C, respectively. The hatching rate was high (68-88%) between 10 and 25°C, but only 29% at 30°C, suggesting a high temperature is unfavourable for hatching. The genital organs of B. tai on the gills of the host developed along with the increase in the number of clamps. In most cases, the genital organs first appeared at clamp number 30-40, and fully developed at around 80. The clamp number kept increasing after maturation (≤131). Apparently, the relationship between the genital development and the clamp number was not influenced by the host fish size and water temperature.抄録全体を表示PDF形式でダウンロード (288K) -
小川 和夫1988 年 54 巻 1 号 p. 65-70
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーOccurrence of a gill monogenean Bivagina tai was monitored monthly on a single stock of red sea bream Pagrus major artificially spawned and cultured in a net cage. The monogenean was found from the fish stock all the time except for the first few months, significantly in greater numbers on the first gills than on the others.
The infection fluctuated with seasons. There were three peaks of infection during the two-year study period. The O+ fish had the highest level of infection in winter, but the infection was modest in the next winter, suggesting the peak infection resulted from lowered resistance of the small fish to infection at low temperatures. A second and a third peak of infection were formed in May, when the fish was just one and two years from hatching; the rise of water temperature was probably responsible for the peak formation.
From the seasonal changes in the development of B. tai, using the clamp number as an in-dicator, it is deduced that the monogenean had three, possibly four, generations a year. The life-span is estimated as 3-5 months in winter and as 2-3 months in spring through autumn.抄録全体を表示PDF形式でダウンロード (389K) -
林 健一1988 年 54 巻 1 号 p. 71-75
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーPandalus gracilis Stimpson, which has been synonymized with P. hypsinotus Brandt, is revived as a good species. Both species occur in the Japanese fauna. It is more closely related to P. prensor Stimpson than to P. hypsinotus. The three species show a number of morphological differences; furthermore P. prensor is the smallest of the three, and P. hypsinotus the largest. The life span of P. hypsinotus is longer than that of P. gracilis. P. gracilis is known to occur rathe abundantly in the southern part of the Sea of Japan, but the commercial value is not high, because of the small size.抄録全体を表示PDF形式でダウンロード (345K) -
藤岡 康弘1988 年 54 巻 1 号 p. 77-86
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーMorphological changes associated with growth and parr-smolt transformation of biwa salmon, reared in pond from underyearling May 1983 to yearling September 1984, were examined by follow-ing relative growth of various body parts, body weight-standard length ratios and changes of condi-tion factor, compared with those of amago salmon reared under the same conditions. Changes of body shapes were observed in association with parr-smolt transformation in biwa salmon; relative growth lines differed between each phase, and also from amago salmon. Parr in amago salmon showed inflections in all the relative growth lines at about 10cm in standard length, and relative growth of body depth and body width changed from negative allometry to isometry or positive allometry. On the other hand, inflection in relative growth line was recognized only in eye dia-meter of biwa salmon smolt. Although similar changes of the body shapes in biwa and amago salmon as in the other salmonids were observed in association with smoltification, such as relative decrease of body depth, body weight and condition facter, degree of these changes was smaller in biwa salmon than in amago salmon, reflecting incomplete smoltification in biwa salmon. Significant differences were recognized in almost all of the relative growth lines between biwa and amago salmon in each phase, most remarkable differences being lower body depth and larger eye diameter in biwa salmon than in amago salmon.抄録全体を表示PDF形式でダウンロード (634K) -
橘高 二郎1988 年 54 巻 1 号 p. 87-93
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーCulture of phyllosoma of spiny lobster Jasus lalandii was accomplished by feeding a combina-tion of Artemia and Mytilus edulis in a circular rearing tank with cultured microalgae such as marine Chlorella at 18°C. Adult Jasus lalandii were mated and naupliosomas were hatched out in captivity.Fifteen molts were observed during 11 stages of phyllosoma with two molts at stage VIII, two at IX, three at X, and one at XI. The intermolt intervals were stable between 20-23 days through stage VIII to X. No mortality was observed after stage VII while survival rate was very low for the early stages. A phyllosoma metamorphosed into the puerulus 306 days after hatching. The results demonstrate the first successful culture of any member of the family Palinuridae, from egg to puerulus.抄録全体を表示PDF形式でダウンロード (1210K) -
上野 隆二, 袁 崇生, 堀口 吉重1988 年 54 巻 1 号 p. 95-101
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーA distribution of β-N-acetylglucosaminidase in the fish blood of various species was investi-gated. The following results have been obtained: 1) β-N-Acetylglucosaminidases, both a neutral form and acidic forms, were demonstrated to have a wide distribution in fish blood of various species. However, the neutral form could not be detected from human and mammalian blood. 2) Carp blood neutral β-N-acetylglucosaminidase was localized in the cytosol of the red blood cells and the acidic forms of the enzyme were in the white blood cells. 3) There existed at least three different forms of β-N-acetylglucosaminidase in carp blood, one neutral form and two acidic forms. 4) With respect to the electrophoretical mobility, behavior of the isoenzymes in DEAE-cellulose chromatography and heat-stability, the neutral form was confirmed to correspond to Hexosamini-dase C, and the acidic forms-1 and -2 may be related to Hexosaminidases B and A, respectively.抄録全体を表示PDF形式でダウンロード (1280K) -
井上 剛, Kenneth L. Simpson, 田中 淑人, 鮫島 宗雄1988 年 54 巻 1 号 p. 103-106
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe pigments were extracted from crayfish carapace with soy oil. Astaxanthin and its esters were purified and concentrated by using microcrystalline cellulose adsorptive chromatography. The concentration of the purified pigments was approximately forty times that of the original pigmented oil. The separation of the pigments from the pigmented soy oil enabled us to reduce the amount of oil necessary to fortify the diet. In a feeding trial, rainbow trout Salmo gairdneri were fed with the diets containing the purified pigments and desirable pink coloration was found in the flesh. The analysis of the pigment in the test diets and flesh of rainbow trout was carried out. The diets with the higher levels of oil had a higher level of pigment decomposition.抄録全体を表示PDF形式でダウンロード (332K) -
里見 弘治, 佐々木 明男, 横山 理雄1988 年 54 巻 1 号 p. 107-112
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーSodium polyphosphate, EDTA-2Na, BHT and sodium ascorbate were evaluated for their antioxidative activity in fish sausage with and without addition of sodium nitrite. Sausages were stored at 37°C in darkness and the surface portion of the sausages were used for analysis. Sodium polyphosphate and EDTA-2Na suppressed increase in TBA value to some degree, but did not inhibit development of oxidized odor. BHT suppressed more effectively increase in TBA value than the chelating agents, but did not inhibit the development of oxidized odor. These results suggest that oxidation products that cannot be estimated by TBA value, also participate in the off-flavor of the sausage. Sodium ascorbate inhibited both the increase in TBA value and the development of oxidized odor. Among the four additives examined, sodium ascorbate was most effective, especially when sodium nitrite coexisted. The experimental findings that the addition of sodium ascorbate favored the formation of nitrosopigment in the sausage during cooking process and that there was a higher correlation between nitrosopigment content and flavor score of the sausage, indicating the important role of nitrosopigment in the inhibition of oxidative deterioration of the flavor of the sausage.抄録全体を表示PDF形式でダウンロード (410K) -
田川 昭治, 松浦 厚敬, 花岡 研一, 貝瀬 利一1988 年 54 巻 1 号 p. 113-116
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe water-soluble arsenic compound was isolated from a concentrated extract of skipjack tuna (so-called “katsuo-senji” in Japanese) which was prepared from cooker drain of “katsuo-fushi” preparation, and that of albacore prepared from steaming drain of tuna canning. The specimens were extracted with a chloroform-methanol mixture, and the arsenic compounds were isolated from the methanol phases by successive chromatographies on active carbon, Dowex 50W-×8 (H+form), Dowex 1-×8 (OH-form), Sephadex G-25F, Dowex 50W-×2 (pyridinium form), and finally preparative thin layer of cellulose. Both isolated compounds were identified to be arseno-betaine by comparison of TLC behavior, IR and FAB mass spectra with those of synthetic arseno-betaine.抄録全体を表示PDF形式でダウンロード (293K) -
槌本 六良, 田中 稔秋, 上杉 祐子, 三嶋 敏雄, 橘 勝康, 矢田 殖朗, 千田 哲資, 保田 正人1988 年 54 巻 1 号 p. 117-122
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe effects of habitat temperatures on the thermostability of myofibrillar ATPase, resolution characteristics of ATP related compounds, and lowering speeds in freshness of fish muscle were experimentally studied using carps reared at 10°C (group L) and 30°C (group H) for different lengths of period.
The rate constants (KD) of inactivation of myofibrillar Ca2+-ATPase increased for group L fish, and decreased for group H fish, with the extension of the rearing period.
Either of the decreasing rate of ATP+ADP+AMP (%/h), increasing rate of K values, de-creasing rate of glycogen, increasing rate of lactic acid, and lowering speed of pH in fish muscle kept at 32°C after killing was much greater for group L than for group H.
The results of the present, combined with those obtained previously for fishes from various localities of different habitat temperatures, convinced us that the thermostability of myofibrillar ATPase and lowering speeds in freshness of fish muscle are markedly affected by the habitat temperatures.
The results also indicated that, in fishes as poikilotherms, the relative activities of a series of enzymes participating in the degradation of ATP related compounds and in the metabolism of glycogen become higher with a lower habitat temperature as an adaptation for an effective generation of energy at a low temperature.抄録全体を表示PDF形式でダウンロード (436K) -
中山 照雄, 柏木 良仁, 加納 哲, 丹羽 栄二1988 年 54 巻 1 号 p. 123-128
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーSardine terrine was produced from minced sardine and carrageenan. The addition of, κ-carrageenan increased jelly strength markedly and breaking deformation slightly. But the excessive addition of κ-carrageenan decreased clearly breaking deformation of product from dressed sardine. The addition of ι-carrageenan increased jelly strength moderately, but did not change breaking deformation. The addition of λ-carrageenan increased jelly strength very gently, but decreased breaking deformation. The result of the sensory evaluation corresponded to the instrumental values of jelly strength. Panelists favored the products with κ-carrageenan and ι-carrageenan in both cases of products from round and dressed fish. Among them, the product from dressed fish with 6%. κ-carrageenan was most favorable. This result would be due to the dropping of larger force after first peak. All sardine terrines were juicy, having the moisture of about 65%. The gelation of minced sardine with κ-or ι-carrageenan proceeded at the temperature below about 80°C. The addition of λ-carrageenan to minced sardine did not induce the gelation owing to the decline of temperature. The properties of κ-, ι-, and λ-carrageenans reported previously, were revealed even if they were added to minced sardine. And the effects were more vivid when minces from dressed sardine were used.抄録全体を表示PDF形式でダウンロード (900K) -
内田 直行, 武蔵 達也, 勝浦 洋, 安斎 寛, 西出 英一1988 年 54 巻 1 号 p. 129-133
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーUptake and fate of p, p'-DDT (DDT) in carp Cyprinus carpio and tilapia Oreochromis niroticus were investigated by exposure to approximately 0.4ng/ml of DDT solution for 10 weeks in the flow-through aquarium and by the determinations of DDT, p, p'-DDE (DDE), p, p'-DDD (DDD) and p, p'-DDT-OH(DDT-OH) in the whole bodies with GC-FID.
The concentration of DDT in carp gradually increased with the exposure time, while that of DDE rapidly increased, but DDD and DDT-OH were not detectable. The bioconcentration factor (BCF) of DDT in carp at 10-week exposure was about 5, 000, on the other hand, that of DDT+DDE was about 22, 000. In tilapia, DDT concentration rapidly increased with exposure time, but no DDT metabolites were detected except a very small amount of DDD through the experiment. The BCF of DDT in tilapia at 10-week was about 23, 000, roughly corresponding to that of DDT+DDE in carp.
These results suggest that carp and tilapia show no difference in the uptake of DDT, but a significant difference of fate in their whole bodies.抄録全体を表示PDF形式でダウンロード (416K) -
林 賢治, 樫木 勇1988 年 54 巻 1 号 p. 135-140
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe lipid class compositions of different tissues of the deep-sea teleost fish Laemonema longipes from the northwestern Pacific Ocean were investigated.
The liver of this species was found to contain a remarkably high amount of lipids, which were characterized by high quantities of wax esters and a low proportion of triglycerides. Conversely, the flesh and ovary lipids were low in the above lipid types but high in phospholipids. The wax esters of liver lipids were found to consist mostly of C38, C40, C42 and C36 components for the carbon chain length. The principal fatty alcohol moieties of liver wax esters were: 22:1, 20:1 and 16:0, which were very similar in composition to those isolated from total lipids of the flesh and ovary. On the other hand, the fatty acids of liver wax esters contained a high percentage of monoenes, consisting of 18:1, 16:1, 20:1 and 22:1 acids, and a significant amount of polyenes, particularly 20:5 ω 3 acid.
The fatty alcohol/fatty acid combination of the L. longipes liver wax esters was supported by the assumption of a random fashion; the relationship between the calculated and experimentally found wax esters based on carbon chain lengths was very close in composition.抄録全体を表示PDF形式でダウンロード (392K) -
矢野 友紀, 中尾 実樹, 古市 政幸, 米 康夫1988 年 54 巻 1 号 p. 141-144
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーRed sea bream Pagrus major were fed on the purified diets containing different levels of choline, pantothenic acid or vitamin C for 2-6 weeks, and the effects of these vitamins on serum complement activity and natural hemagglutinin titer were examined.
The dietary requirements of red sea bream for choline chloride and Ca-pantothenate were estimated to be about 50mg and 1mg per 100g diet, respectively, on the basis of growth and feed efficiency. The dose levels of 0-400mg choline chloride/100g and 0-15mg Ca-pantothenate/100g diet did not affect the complement activity in fish, but higher levels of 800mg choline chloride/100g and 28mg Ca-pantothenate/100g diet significantly enhanced the complement activity. These results indicate that dietary supplementation of 15 to 30 times the minimum requirement of choline chloride or Ca-pantothenate is necessary for the enhancement of the complement activity. There was no difference in the complement activity between fish fed on the diets with and without 100mg vitamin C per 100g diet. However, the group fed on the diet containing 100mg of vitamin C showed a significantly higher natural hemagglutinin titer.抄録全体を表示PDF形式でダウンロード (318K) -
村井 武四, 秋山 敏男, 尾形 博, 鈴木 徹1988 年 54 巻 1 号 p. 145-149
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーA 4-week feeding study and succeeding hematological analyses were carried out using fingerling yellowtail in order to test the interaction of dietary oxidized oil and glutathione. Major ingredients of the experimental diets were raw sand lance (61%) and raw mysis (40%). Supplemental level of oxidized cod viscera oil (POV, 84meq/kg) was 5% with or without glutathione supplementation (0.1%, reduced form). Fish fed the diet with the oxidized oil alone showed poor growth rate and high mortality (23% in 4 weeks). Although no sekoke disease like symptom was detected even in this dietary group, the hematological analyses revealed that feeding the oxidized oil lowered hematocrit level and serum neutral fat content, but increased glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase activities, and immunoglobulin M level in the serum as well as free amino acid levels. Supplementation of glutathione to the diet prevented these symptoms almost completely.抄録全体を表示PDF形式でダウンロード (372K) -
池田 静徳, 石橋 泰典, 村田 修, 那須 敏朗, 原田 輝雄1988 年 54 巻 1 号 p. 151-154
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーThe Japanese parrot fish Oplegnathus fasciatus weighing 6.2g on average, were fed with diets containing different levels of protein (casein) and lipid (pollack liver oil) to determine the optimum levels of protein and lipid in the diet. After feeding for 40 days at 27°C in September-21°C in October, weight gain, feed conversion efficiency, protein efficiency ratio, body protein (or lipid) retention ratio and the contents of moisture, crude protein, crude lipid and crude ash in the fish bodies were examined.
Based upon the results of these studies, the optimum protein (casein) level in the test diet for the Japanese parrot fish was estimated to be about 45% under the present experimental conditions. Also, the optimum lipid (pollack liver oil) level in the diet was about 8% when the dietary casein content was 50%.抄録全体を表示PDF形式でダウンロード (310K) -
田中 淑人, 井上 剛1988 年 54 巻 1 号 p. 155
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (83K) -
豊原 治彦, 牧之段 保夫, 池田 静徳1988 年 54 巻 1 号 p. 157
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (90K) -
境 正, 国持 司1988 年 54 巻 1 号 p. 159
発行日: 1988/01/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (109K)
- |<
- <
- 1
- >
- >|