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鲤鱼     
相关语句
  carp
     common carp (Cyprinus carpio) 0.38 mg/L and 0.038 mg/L;
     鲤鱼苗0.38mg/L和0.038mg/L;
短句来源
     The 24 h LC50 values of nitrite for common carp,silver carp,bighead,and grass carp are 180.84,54.40,38.50 and 35.55mg/ L NO2--N;
     结果表明:NO_2~-—N对鲤鱼,白鲢,花鲢,草鱼鱼苗24h的LC_(50)分别为180.84,54.40,38.50和35.55mg/L;
短句来源
     The LC_50 values of 96 hours 2,4-DCP to Common Carp are 13.9 mg/L (11.8~16.6mg/L).
     2,4-二氯苯酚对鲤鱼的96小时LC_(50)为13.9mg/L(95%置信限为11.8~16.6mg/L)。
短句来源
     The common carp (Cyprinus carpio L.)
     鲤鱼(Cyprinus carpio L.)
短句来源
     The result shows that the LC 50 of carp and crucian within 24 and 48 hours are 7.13mg/L, 6.87mg/L and 13.72mg/L, 13.22mg/L;
     结果表明百毒杀对鲤鱼 2 4h和 48h的半数致死浓度 (LC50 )分别为 7 13mg/L和 6 87mg/L ,安全浓度为 0 6 9mg/L ;
短句来源
更多       
  common carp
     common carp (Cyprinus carpio) 0.38 mg/L and 0.038 mg/L;
     鲤鱼苗0.38mg/L和0.038mg/L;
短句来源
     The 24 h LC50 values of nitrite for common carp,silver carp,bighead,and grass carp are 180.84,54.40,38.50 and 35.55mg/ L NO2--N;
     结果表明:NO_2~-—N对鲤鱼,白鲢,花鲢,草鱼鱼苗24h的LC_(50)分别为180.84,54.40,38.50和35.55mg/L;
短句来源
     The LC_50 values of 96 hours 2,4-DCP to Common Carp are 13.9 mg/L (11.8~16.6mg/L).
     2,4-二氯苯酚对鲤鱼的96小时LC_(50)为13.9mg/L(95%置信限为11.8~16.6mg/L)。
短句来源
     The common carp (Cyprinus carpio L.)
     鲤鱼(Cyprinus carpio L.)
短句来源
     The LC_50 values of 96 hours PCP to Common Carp are 0.19 mg/L (0.17~0.22mg/L).
     五氯酚对对鲤鱼的96小时LC_(50)为0.19mg/L(95%置信限为0.17~0.22mg/L)。
短句来源
更多       
  carps
     The results showed that the toxicities of these three heavy metals were in the sequence of Cu> Cd >Zn for the larval carps, the 96 hour median lethal concentrations (LC50 ) and safe concentrations (CS) of Cu、Zn、Cd were 0.2mg/ L, 0.02mg/ L;
     结果表明三种重金属对鲤鱼幼鱼的毒性顺序为Cu>Cd>Zn,三种重金属对鲤鱼幼鱼的96h半致死浓度和安全浓度分别为Cu0.2mg/L,0.02mg/L;
短句来源
     Juvenile carps(Cyprinus carpio)of 60g were fed with a semi-purified diet supplemented with 3% of fresh fish oil(Peroxide value,POV,1.28 meqO2/kg)and oxidized fish oil with different levels of POV 59.28,118.79,159.85,189.37,331.82 or 367.86 meqO2/kg,resectively for 9 weeks.
     将新鲜鱼油(过氧化物值 ,POV ,1.28meqO2/kg)和POV分别为59.28、118.79、159.85、189.37、331.82和367.86meqO2/kg 的6个氧化程度不同的鱼油按3 %加入半纯化饲料中 ,投喂60g左右二龄鲤鱼鱼种9周。
短句来源
     The results showed that in serum and tissues of Qinghai-lake naked carps there were five major isozymes of LDHB_4,LDHA_2B_2,LDHA_4,LDHE_4 and LDHF_4, and in serum and tissues of carps there were four major isozymes of LDHB_4,LDHA_2B_2,LDHA_4 and LDHF_4.The LDH isozymes showed specific distribution in interspecles and intraspecies.
     结果表明,青海湖裸鲤的血清及组织LDH共表现出LDHF4、LDHA4、LDHA2B2、LDHB4和LDHE45种主要同工酶,而鲤鱼共表现出LDHF4、LDHA4、LDHA2B2和LDHB44种主要同工酶,并且LDH同工酶在种间和种内不同组织中均表现出分布特异性。
短句来源
     During 42 d,polychromatocytes micronuclei,esterase activities and isozymes in liver and kidney tissues of carps cultured in ρ (Cu 2+ ) 0.01 mg/L , ρ (As 3+ ) 0.1 mg/L , ρ (Phe) 0.005 mg/L and the mixture of three pollutants were analysed .
     应用微核试验、聚丙烯酰胺凝胶电泳和酯酶活性测定技术 ,比较和分析了 42d内饲养于 ρ(Cu2 +) 0 .0 1mg/L、ρ(As3 +) 0 .1mg/L、ρ(Phe) 0 .0 0 5mg/L及其二二组合物和三组合物溶液中鲤鱼嗜多染红细胞微核率 ,肝、肾脏酯酶活性和同工酶谱 .
短句来源
     Studies of bioconcentration,elimination and metabolism of 2,6 dinitrotoluene in carps
     鲤鱼对2,6-二硝基甲苯的生物浓缩、消除与代谢研究
短句来源
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  cyprinoid
     The committed effective doses of the 226 Ra, 238 U and 90 Sr from cyprinoid fish are 5.49×10 -2 ,3.69×10 -2 and 1.77×10 -2 μSv per year respectively.
     每年摄入湖区鲤鱼中的放射性核素所致居民待积有效剂量较高的为226Ra、238U和90Sr,分别为5.49×10-2、3.69×10-2和1.77×10-2μSv。
短句来源
     This paper reported the nuclear transplantation between 2 species of fish belonging to different subfamilies with distant kinship, the grass carp and cyprinoid fish.
     用草鱼的头肾组织细胞核、草鱼的头肾细胞核与鲤鱼成熟去核卵之杂种胚胎细胞核、草鱼的囊胚细胞核,分别与鲤鱼的去核卵细胞质配合进行核移植操作.
短句来源
     Thermoluminescence characteristics of otoliths of wild carps (cyprinoid) in the Baiyangdian Lake and the Miyun Reservoir
     白洋淀和密云水库野生鲤鱼耳石热释光特征研究
短句来源
     In this paper, thermoluminescence characteristics of otoliths of the wild carps (cyprinoid) in the Baiyangdian Lake of Hebei Province and the Miyun reservoir of Beijing were studied, and the difference of energy gap (E) between the fish otoliths in the two regions was analyzed.
     本文对生长在河北白洋淀和北京密云水库的野生鲤鱼耳石的热释光曲线特征进行了研究,分析了两水域野生鲤鱼耳石中陷阱深度(E)值的差别。
短句来源
     Conclusions The results show that the average activity concentrations of gross-alpha, gross-beta, 137 Cs, 238 U, 232 Th, 40 K, 226 Ra and 90 Sr in the samples from Shandong basin of northward rerouting of southern river are within the background levels. And in the main lake basin, the estimated exposures of public caused by the radionuclide in water and cyprinoid fish are so low that they can be ignored unless there are some radioactive contamination in the future.
     结论研究表明,南水北调东线山东段沿线的放射性核素的平均活度浓度总体上处在本底水平,主要湖区湖水及鲤鱼中的放射性核素所造成的公众辐射危险非常低,湖水在没有受到其他实践所引起放射性污染的情况下可以不考虑其对公众的辐射危险。
短句来源
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      carp
    The weight of the fusion protein was about 20 kDa, and a 16-kDa protein was expressed from the carp obese gene.
          
    Injections of fraction II (67 kDa) provided the highest protection of carp against the disease.
          
    Effect of Bacterial Infection on the Lipid Composition of Carp Blood Lymphocytes
          
    The initial stage of bacterial infection is characterized by an increase in the level of total lipids and polyenoic fatty acids in membrane phospholipids of blood lymphocytes of carp (Cyprinus carpio L.).
          
    Here, we studied the effect of antifreeze glycoproteins on the survival of carp spermatozoa under storage at 4°C for varying periods of time.
          
    更多          
      common carp
    Genetic Variation Analysis within and among Six Varieties of Common Carp (Cyprinus carpio L.) in China Using Microsatellite Mark
          
    Domestic varieties (except Xingguo red carp) showed less genetic diversity than the Yangtze River wild common carp in terms of allelic diversity.
          
    Population differentiation was assessed and each combination of populations displayed significant differentiation (P >amp;lt; 0.05) with the exception of that between the Yangtze River wild common carp and Xingguo red carp.
          
    Genetic diversity and differentiation of Russian common carp (Cyprinus carpio L.) breeds inferred from RAPD markers
          
    Polymorphic components of the common carp Cyprinus carpio L.
          
    更多          
      carps
    Determination analysis confirms the theoretic assumptions on food preferences of herbivorous fish: both silver and bighead carps avoided feeding on cyanobacteria.
          
    The results of comparative crosses of crucian carps with different ploidy suggest a high fertilizing capacity of triploid males, as well as normal viability of their progenies.
          
    In ornamental carps from the collection of the Experimental Station, All-Russia Research Institute of Fresh-Water Fisheries, fish with a dirty dark tint of body color among orange and white fish were found.
          
    The index of genetic diversity, H, was high (11%) in Amur wild common carp, as well as in Altai and Angelinskii common carps.
          
    One of the clusters was formed by Hungarian and Angelinskii common carps, and the three samples of Altai common carp.
          
    更多          
      cyprinoid
    A cell line from the gill tissues of indian cyprinoid Labeo rohita
          


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    作者就产仔鲤鱼抵抗池塘鱼最危险的一种疾病——风疹病的人工免疫方面进行了研究。工作是在克拉斯诺达尔边缘的阿恩盖利养鱼场的生产件条下进行的,共达三年之久(1955—1958)。 实验结果令人信服地表明:给产仔鲤鱼人工接种疫苗不仅使其本身能抵抗风疹疾病,而且子一代也对这种疾病有抵抗能力。血清蛋白的电泳研究表明:已接种疫苗的产仔鲤鱼以及其后代的血清中Υ—蛋白部分增加了。大部分已接种的产仔鱼以及子一代的Υ—球蛋白的高水平保持了相当时期。 根据所得材料,作者推荐给凡是观察到有患风疹鱼的其他鱼场,可以应用对产仔鲤鱼进行接种疫苗的方法。 产仔鲤鱼接种风疹疫苗的实验将导致更为广泛的研究,即应用对产仔鱼接种疫苗的方法以抵抗鱼类的其他感染病。

    The discovery of the larval form of the species of Asymphylodora Looss (1899) dated back to the time of von Baer (1827), who described Cercaria paludinae impurae, De Filippi (1854) recorded from the same snail host a distome bearing the same name. For one and half century knowledges regarding the developmental life history of the well-known type of the genus, A. tincae, have gradually accumulated. Small as it is, the worm, however, has received the attention of many a distinguished helminthologists such as Diesing...

    The discovery of the larval form of the species of Asymphylodora Looss (1899) dated back to the time of von Baer (1827), who described Cercaria paludinae impurae, De Filippi (1854) recorded from the same snail host a distome bearing the same name. For one and half century knowledges regarding the developmental life history of the well-known type of the genus, A. tincae, have gradually accumulated. Small as it is, the worm, however, has received the attention of many a distinguished helminthologists such as Diesing (1858), Looss (1899). Lithe (1809), Fuhrmann (1916), Dubois (1909), Wesenberg-Lund (1934) and Skrjabin (1955). The recent work of Deblock, Capron and Biguet (1957) elucidated the life cycle of a new subspecies, A. tincae var. mediagraba, while other workers like Serkova and Bykhovskii (1940), Biguet, Deblock and Capron (1956) and Stunkard (1959) described the development of several progenetic species, The significance of progenesis to the phylogeny of Digenea is discussed by Stunkard (1959). Inspire of the above-mentioned important advances on the knowledge of this genus, there still remain much to be worked out regarding the biology of this group.The present communication repoorts life history studies on Asymphylodora macostoma Ozaki, 1925 and A. japonica Yamaguti, 1928.The adults of A. macrostoma were obtained from Puntia sp. (Cyprinidae) occurring in the mountain stream of Yungan, Central Fukien. Their structure and measurements were described in detail. They are indistinguishable from the original description of Czaki (1925) and Yamaguti (1938). The molluscan intermediate host of A. macrostoma in Fukien is Melania peregrinorum Heude inhabiting the mountain stream among rocks and under stones.The sporocyst stage was not discovered in natural infection. The second generation redia measures 1.39mm in length and 0.274mm in width. The gut contains numerous brownish granules derived from the host tissue. The general shape of the redia is sac-like. It possesses no muscular feet. In the body of a mature redia there are 5 or 6 cercariae and some germ-balls observed.The cercariaeum is a comparatively large distomate larva 0.3-0.37mm in length and 0.11-0.13mm in width. It is brownish yellow ia color especially in its posterior part. The cuticle is covered with spines distributed in transverse rows. The oral sucker measures 0.08-0.09mm by 0.09-0.097mm in diameter. The ventral sucker is smaller, measurihg 0.068 in diameter. On the dorsal wall of the oral sucker there are four rows of short conspicuous spines lining two-thirds of the inner surface of the sucker. There are also 3-8 big flat spines attached to the inner surface. The acetabulum is also armed with small conspicuous spines on its entire inner surface, Such spinulation is not present in the cercariaeum of A. japonica but is rather similar to that described in Cercariaeum squamosum by Deblock, Carpron and Biguet (1957). The oral sucker is followed by a short prepharynx, which leads to a globular pharynx. The esophagus is long, bending several times and bifurcating in front the acetabulum into two intestinal caeca. On both sides of the esophagus four bundles of penetration glands are present, occupying the area between the pharynx and acetabulum. There are altogether 40-42 unicellular gland cells. Four bundles of ducts proceed anteriorward along the medial and lateral regions to arrive at and open on the inner dorsal wall of the oral sucker. The penetration glands become graduallv diminished as the cercariaeum grows more mature, so that in the adolescaria stage their contents are greatly reduced. The posterior tip of the body is armed with a number of long and sharp spines, which probably help the larva in its creeping movement.The excretory system is complicated. Since the body of the cercariaeum is full of cystogenous cells, which obscure the capillary tubules connecting the flame cells, their arrangement cannot be traced, and yet when the cercariaeum has encysted, while still in the snail host, most of the gland cells have disappeared rendering the tiny excretory tubules observable. The excretory bladder is a sinuous tube, making one or two left and right bendings as it advances anteriorward. The bladder is lined with a series of large epithelial cells. From the anterior aspect of the bladder, there arise two collecting tubules, which extend obliquely foreward to both lateral fields. They continue to advance to the level of esophagus and then turn posteriorly to about the mid region of the whole length of the collecting tubule and divides into two branches. The anterior branch gives off branches two times resulting in three groups of solenocytes. The first group consists of five cells, while the other two have three calls cach. The posterior branch divides into two main sub-branches with seven and three flame cells in each group. The total number of flame cells is about 42. The pattern of their arrangement can be better understood by tracing the development of the excretory system from the germ-ball to the mature cercaria. Four stages were observed:1. In the early germ-ball stage, when the oral sucker and the phraynx are being differentiated, the collecting tubulesare formed. They are connected to a small bladder situated at the posterior end of the body. The two tubules having passcd anteriorly and reached about two-thirds of the body length, make a characteristic loop and divide into an anterior and a posterior branch Their arrangement can be depicted as 2(1+1)=4. 2. In the second stage, when the ventral sucker is formed, both the anterior and posterior branches divide into three flame cells cach. The formula is reprsented as 2(3+3)=12.3. In the third stage the division of the anterior branch into three smaller branches is witnessed. The posterior branch is not subdivided. It still possesses three solenocytes. The formula of arrangement is 2[(2+2+4)+(2+1)]=22.4. The fourth or the cercaria stage shows great increase of cells, especially in the posterior branch. Their arrangement are indicated in the foregoing description. The formula can be expressed as follows: 2[(3+3+5)+(3+3+4)]=42.It was observed that the number of cells and the pattern of their arrangement are not exactly homologous between the left and right sides of the body. The above description indicates that the cell formula is constant only in relative sense that is they differ in different stages of development.Specimens of Asymphylodora japonica were secured from Pscudorasbora parva (Temm. aud Schle.) and also from Cyprinus carpio L. The structure and measurements of the adult are fully described. They resemble the original description of Yamaguti's closely. A. japonica develops in Parafossarulus eximius (Frauenfeld) and P. striatulus (Benson). Both molluscs inhabit the ponds and rivulets in Foochow area. Dissections of the snails reveal stages of rediae and cercariae. Spororcysts were not found in the natural infection. The second generation redia is elongated in shapeIt measures 1.5mm in length and 0.45mm in transverse diameter. The fully mature redia contains seven to eight cercariae in its body.The cercariaeum is elongated or spindle-shaped, measuring 0.5-056mm in length and 0.16mm in greatest width. The cuticle is armed with spines transversely arranged. Oral sucker is round in shape with a diameter of 0.1mm. Ventral sucker, larger than the oral sucker, has a diameter of 0.12-0.13mm. There is a short prepharynx followed by a glubose pharynx. The esophagus is long. It bifurcates in front of the acetabulum into two intestinal caeca, which extend posteriorly to one fourth of the body length from the hind extremity. Four groups of unicellular penetration glands occupy the region between the oral and ventral suckers, numbering altogether about 36-38. Four bundles of gland-ducts lead forward and open on the inner dorsal wall of the oral sucker. The excretory system resembles that of cercariaeum of A. macrostoma. The excretory bladder is a long sinuous tube, similar to that of cercariaeum A. macrostoma.The metacercariae of A. japonica, probably in the pre-encystment stage, were frequently encountered in the snail host. It is larger in size than the cercariaeum, measuring 0.8-1.00mm in length and 0.4mm in greatest width, Oral sucker 0.038-0.11mm in diameter, is smaller than acetabulum, The later is 0.132-0.149 mm in diamcter. The oral sucker is smaller than acetabulum. The later is 0.132-0.149 mm in diam- eter. The oral sucker is followed by a prepharynx, which is connected to a glubose pharynx 0.049-0.50mm in diameter. The esophagus is long It bifurcates before the ventral sucker into two intestinal caeca extending to the hind end of the testis. The genital organs alrsady begin to develop. A single oval testis, measuring 0.30 by 0.20mm is situated at the posterior part of the body. Immediately anterior to the testis, an ovary triangular or oval in shape is present. Its diameter is 0.10mm. On the right side of the acetabulum the primordium of the cirrus pouch and metraterm appear as two columns of nuclei. The metacercariae can encyst in the same snail host. They can also migrate to another snail of the same species. The cyst measures 0.332-0.365mm in diameter. Under cover-glass pressure, it measures 0.500mm in diameter.Experiments were performed to infect Puntia sp., secured from places where no Melanin snails were found, and members of which were found to be free from infection, by feeding them with from Melanin peregrinorum. Fifteen days after infection, the fishes were dissected and adult worms similar to A. macrostoma were found. One experimentally infected fish died five days after infection wite forth immaure worms found. They were all very similar in size and development. Experiments were also performed to secure adult A. japonica by feeding laboratory-reared gold fishes (Carassius auratus) with cysts from Parafossarulus exiraius (F.) Fifteen days after infection, adult worms mo

    1.福建省的两种側殖吸虫,巨口侧殖吸虫(Asymphylodora macrostoma Ozaki,1925)及日本侧殖吸虫(A. japonica Yamaguti,1928)的生活史均經闡明。2.巨口侧殖吸虫的终末宿主为刺鲃(Punctius sp.),貝类的中間宿主为川蜷贝(Melania peregrinorum Heude)。日本侧殖吸虫的终末宿主为麦穗魚(Pseudorasbora parva (T. and S.)),及鯉魚(Cyprinus carpio L.),貝类中間宿主为两种的纹沼螺(Parafossarulus eximius (Fruenfeld)及P. striatulus (Benson))。3.幼虫各期的形态經观察和叙述,特別关于排泄系統的构造經詳細的探討。4.两种侧殖吸虫幼虫期的形态,特别关于排泄囊的构造以及穿刺腺的存在,与侧殖Asymphylodora Looss,1899原属有很大的不同,作者建議创立一个新属Orientotrema Tang,1962 Gen. Nov.借以容納有管状排泄囊的种类。属的特征經叙述,末后并附侧殖亚科(Asymphylodorinae)各属...

    1.福建省的两种側殖吸虫,巨口侧殖吸虫(Asymphylodora macrostoma Ozaki,1925)及日本侧殖吸虫(A. japonica Yamaguti,1928)的生活史均經闡明。2.巨口侧殖吸虫的终末宿主为刺鲃(Punctius sp.),貝类的中間宿主为川蜷贝(Melania peregrinorum Heude)。日本侧殖吸虫的终末宿主为麦穗魚(Pseudorasbora parva (T. and S.)),及鯉魚(Cyprinus carpio L.),貝类中間宿主为两种的纹沼螺(Parafossarulus eximius (Fruenfeld)及P. striatulus (Benson))。3.幼虫各期的形态經观察和叙述,特別关于排泄系統的构造經詳細的探討。4.两种侧殖吸虫幼虫期的形态,特别关于排泄囊的构造以及穿刺腺的存在,与侧殖Asymphylodora Looss,1899原属有很大的不同,作者建議创立一个新属Orientotrema Tang,1962 Gen. Nov.借以容納有管状排泄囊的种类。属的特征經叙述,末后并附侧殖亚科(Asymphylodorinae)各属檢索表的修訂。5.本类吸虫的生活史及习性問题經詳細討論。

    ~~

    本文研究了鲫、鲤的性腺及相关器官的季节变化。从研究鲫鱼的性腺状况中,了解到武昌东湖地区鲫鱼至少分二批产卵。1964年产卵时间为3至5月,而大量产卵时间是4至5月间。1龄的鲫鱼可成熟,但卵巢发育一般比成鱼迟一个月左右。多数鲤鱼至少分二批产卵,但也有少数个体一批产完,最低性成熟年龄为1龄。从1964年的情况看来,产卵时间开始于4月上旬或更早一些(三月下旬)。从成熟卵母胞的大小看来,鲤鱼的卵子要比鲫鱼的大。鲫鱼、鲤焦的脑垂体的间叶细胞和下丘脑的神经分泌细胞,有着与性腺相关的季节性变化。

     
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