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water fowl     
相关语句
  水禽
     Advance in Nutrient Requirement and Feed Evaluation of Waterfowl
     水禽饲料营养价值评定与营养需要量研究进展
     Epidemiological Investigation of Birdflu Virus Infection in Migratory Waterfowl in China and ELISA for H5 Subtype Avian Influenza Virus in Duck
     野生迁徙水禽流感病毒感染的流行病学分析与鸭H5亚型禽流感抗体ELISA监控技术研究
短句来源
     Waterfowl Origin H5N1 Subtype Avian Influenza: Ultrastructural Pathogenicity,Developing Its Monoclonal Antibody Against M Protein and Preliminary Application
     水禽禽流感H5N1亚型超微病理研究及其基质蛋白单克隆抗体的制备与初步应用
短句来源
     But over developed and blind inning in the waterfowl inhabitat were found,hence only 1/3 area of natural wetlands was reserved.
     但同时亦存在过度开发、盲目围垦等破坏水禽栖息地的现象,天然滩涂湿地现存面积仅为原来的1/3。
短句来源
     There are 31 species of waterfowl have been recorded in Lashihai. These species which account for 25. 8% of total waterfowls recorded in Yunnan and belong to 7 orders and 10 families.
     但却记录有水禽7目10科31种.占全省水禽种数的25.8%。
短句来源
更多       
  水鸟
     Mercury concentrations in planktons, benthos, herbivorous fish, omnivorous fish, carnivorous fish and water fowl in vivo are 0.34, 0.48, 0.90, 1.28, 1.70 and 3.29 ppm, respectively, in estuary of Jiyun Riyer.
     汞在浮游生物、底栖动物、草食性鱼类、杂食性鱼类、肉食性鱼类及水鸟体内的平均含量分别为0.34、0.48、0.90、1.28、1.70和3.29mg/kg。 六六六的浓缩因子较小(10~2),且易于排出;
短句来源
     The waterfowl resource in Redwood National Nature Reserve at Zhangjiang estuary, Fujian province was surveyed from January,2003 to March,2006. Results indicated that the total number of waterfowls amounted to 8442, belonging to 33 species( subspecies), among them, the most numerous were of 3 species: little egret, teal and black headed gull, amounting to 16.5%, 23.5% and 10.0%, respectively;
     2003年1月至2006年3月,对福建漳江口红树林国家级自然保护区水鸟资源进行了调查,共发现水鸟33种 (亚种)8 442只,其中小白鹭、绿翅鸭、红嘴鸥数量是本调查期所调查到数量最多的3种水鸟,分别占调查总数的 16.5%、23.5%和10.0%。
短句来源
     Lashihai Nature Reserve is the first wetland nature reserve in Yunnan Province. 77 species and subspecies of waterfowl in the area were recorded, which accounted for 57.46% of the total 134 species of recorded waterfowl in Yunnan and 28.41% of the total 271 waterfowl species recorded in China.
     拉市海自然保护区是云南省第一个湿地类型的自然保护区,该保护区有记录的水鸟共77种,占云南省已记录水鸟种类134种的57.46%,占中国已记录水鸟种类271种的28.41%.
短句来源
     To study the species, population size and fauna component of overwintering waterfowl in Lashihai wetland, a 3.5km monitoring transect was set up in eastern part of the lake. According to the 3-year (2001~2003) observation, 67 species of waterfowl subordinated to16 Families of 9 Orders had been recorded.
     为了掌握拉市海湿地越冬水鸟的种类、数量、区系组成,在东部沿湖设置一条3 5km的观测样线,从2001~2003年进行了3年的观察,共记录到湿地水鸟66种,隶属于9目16科。
短句来源
     The Survey of the fauna composition and ecological distribution of waterfowl of Leizhou Peninsula was conducted from Oct., 1998 to Jun., 2000. The results showed: 56 species of water birds were recorded, which belong to 7 orders, 9 families, in Leizhou Peninsula.
     1998年 1 0月至 2 0 0 0年 6月 ,对雷州半岛湿地水鸟区系组成及生态分布进行了调查 ,结果表明 ,雷州半岛湿地有水鸟 5 6种 ,隶属 7目 9科。
短句来源
更多       
  水禽
     Advance in Nutrient Requirement and Feed Evaluation of Waterfowl
     水禽饲料营养价值评定与营养需要量研究进展
     Epidemiological Investigation of Birdflu Virus Infection in Migratory Waterfowl in China and ELISA for H5 Subtype Avian Influenza Virus in Duck
     野生迁徙水禽流感病毒感染的流行病学分析与鸭H5亚型禽流感抗体ELISA监控技术研究
短句来源
     Waterfowl Origin H5N1 Subtype Avian Influenza: Ultrastructural Pathogenicity,Developing Its Monoclonal Antibody Against M Protein and Preliminary Application
     水禽禽流感H5N1亚型超微病理研究及其基质蛋白单克隆抗体的制备与初步应用
短句来源
     But over developed and blind inning in the waterfowl inhabitat were found,hence only 1/3 area of natural wetlands was reserved.
     但同时亦存在过度开发、盲目围垦等破坏水禽栖息地的现象,天然滩涂湿地现存面积仅为原来的1/3。
短句来源
     There are 31 species of waterfowl have been recorded in Lashihai. These species which account for 25. 8% of total waterfowls recorded in Yunnan and belong to 7 orders and 10 families.
     但却记录有水禽7目10科31种.占全省水禽种数的25.8%。
短句来源
更多       
  水鸟
     Mercury concentrations in planktons, benthos, herbivorous fish, omnivorous fish, carnivorous fish and water fowl in vivo are 0.34, 0.48, 0.90, 1.28, 1.70 and 3.29 ppm, respectively, in estuary of Jiyun Riyer.
     汞在浮游生物、底栖动物、草食性鱼类、杂食性鱼类、肉食性鱼类及水鸟体内的平均含量分别为0.34、0.48、0.90、1.28、1.70和3.29mg/kg。 六六六的浓缩因子较小(10~2),且易于排出;
短句来源
     The waterfowl resource in Redwood National Nature Reserve at Zhangjiang estuary, Fujian province was surveyed from January,2003 to March,2006. Results indicated that the total number of waterfowls amounted to 8442, belonging to 33 species( subspecies), among them, the most numerous were of 3 species: little egret, teal and black headed gull, amounting to 16.5%, 23.5% and 10.0%, respectively;
     2003年1月至2006年3月,对福建漳江口红树林国家级自然保护区水鸟资源进行了调查,共发现水鸟33种 (亚种)8 442只,其中小白鹭、绿翅鸭、红嘴鸥数量是本调查期所调查到数量最多的3种水鸟,分别占调查总数的 16.5%、23.5%和10.0%。
短句来源
     Lashihai Nature Reserve is the first wetland nature reserve in Yunnan Province. 77 species and subspecies of waterfowl in the area were recorded, which accounted for 57.46% of the total 134 species of recorded waterfowl in Yunnan and 28.41% of the total 271 waterfowl species recorded in China.
     拉市海自然保护区是云南省第一个湿地类型的自然保护区,该保护区有记录的水鸟共77种,占云南省已记录水鸟种类134种的57.46%,占中国已记录水鸟种类271种的28.41%.
短句来源
     To study the species, population size and fauna component of overwintering waterfowl in Lashihai wetland, a 3.5km monitoring transect was set up in eastern part of the lake. According to the 3-year (2001~2003) observation, 67 species of waterfowl subordinated to16 Families of 9 Orders had been recorded.
     为了掌握拉市海湿地越冬水鸟的种类、数量、区系组成,在东部沿湖设置一条3 5km的观测样线,从2001~2003年进行了3年的观察,共记录到湿地水鸟66种,隶属于9目16科。
短句来源
     The Survey of the fauna composition and ecological distribution of waterfowl of Leizhou Peninsula was conducted from Oct., 1998 to Jun., 2000. The results showed: 56 species of water birds were recorded, which belong to 7 orders, 9 families, in Leizhou Peninsula.
     1998年 1 0月至 2 0 0 0年 6月 ,对雷州半岛湿地水鸟区系组成及生态分布进行了调查 ,结果表明 ,雷州半岛湿地有水鸟 5 6种 ,隶属 7目 9科。
短句来源
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      water fowl
    The results are discussed with respect to the build-up and maintenance of a large reservoir of nonpathogenic influenza A viruses with noncleavable HA in water fowl.
          
    Water fowl-assisted colonization of non-marine habitats by foraminifera has previously been suggested as a dispersal mechanism for other non-marine foraminiferal occurrences.
          
    This leech is usually found in shallow water zones frequented by water fowl and mammals.
          
    histrica is predated by fish and water fowl, it is likely to play an important role as a vector for microcystin in lakes with dense blooms of toxic cyanobacteria.
          
    Wild water fowl usually harbor type A influenza in their digestive tract and have no symptoms.
          
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    A field survey on the epidemiology of philophthalmosis of domestic fowls was made in Zhao-qing distrct and the suburb of Guangzhou(Can-ton),Guangdung province, from June 1974 to October 1975. It was found that the parasite Philophthulmtis gralli was quite extensively distributed in these area. A total of 5o2 fowl specimens , including 193 chickens , 252 ducks and 57 geese were examined. The incidences of infection in different hosts were as follows : among ducks, the range of percentage of infection...

    A field survey on the epidemiology of philophthalmosis of domestic fowls was made in Zhao-qing distrct and the suburb of Guangzhou(Can-ton),Guangdung province, from June 1974 to October 1975. It was found that the parasite Philophthulmtis gralli was quite extensively distributed in these area. A total of 5o2 fowl specimens , including 193 chickens , 252 ducks and 57 geese were examined. The incidences of infection in different hosts were as follows : among ducks, the range of percentage of infection is 74.9-100%,and the average percentage of infection is 76.9%; among geese, the range of percentage of infection is 30.7-43.3%,and the average percentage of infection is 36.8% ; among chickens , the range of percentage of infection is 0-16.6%, and the average percentage of infection is 7. 3%. The intensity of infection in each host harbouring the worms varied from one to forty-one. In the epidemic area, the average number of worms in each fowl was 2.15 worms per duck,2.46 worms per goose,and 0.22 worms per chick.The water fowls (ducks and geese) were infected with more worms than the chickens. On the other hand, the younger fowls had a higher percentage of infection than that of the adult fowls and their clinical symptoms were more serious. It seems to be that immunity due to age may also be present in fowls,The intermediate hosts of P. gralli of fowls in Guangdung Province were Melanoides tuberculata(Muller) and Tharebia gronifera (Lamarck),but the former one was more important in transmitting this disease. Natural snails of melanoides were collected from the epidemic area.It was found that the percentage of infections by Philophthalmus larvae varied with the weather of the epidemic area,the warmer the weather the higher the percentage of infection. In summer ( July to August ) the average room temperature was 30-32℃, the percentage of infection was 34.0-57.6%; in autumn(October to November)the average room temperature was 25-27℃, and the percentage of infection was 21.0%; in spring (March to May), the average room temperature was 20-23℃, the percentage of infection was 13.9%;in winter (December to February) the average room temperature was 12-15℃, the percentage of infection was 12.9%. The larvae failed to develop in the snails under temperature below 10℃.P.gralli needed no secondary intermediate host.The mature cercariae that emerged from the melanoides snails encysted within about 15-20 minutes after they came in contact with any solid objects,The bottle shape ripened cysts were found on the aquatic plants (Elodea sp. ; Ceratophyllum dermersum Linn. ,Lemna polyrhiza Linn. ; Lemna minor Linn. ; Azolla pinnata R.Br.;Woffia arrhizia Wimm.)on the leaves and stems of rice plants,and on the shells of fresh water snails [Radix swirihoei (H. Adams); Galba per-via (Martens) ; Gyraulus convexiusculus Hutton;Hippeutis contort Benson; Segmentina hemiaphaerula(Benson)] and the cuticle of mosquito larvae.Some cercariae when sinking down also encysted on other solid objects such as the shells of melanoides,vivparus,the cuticles of shrimps (Mflcrobrocnium superbum), crabs [S.(H.) dehaani] and copepods. All the above mentioned aquatic plants and animals were the carriers of Philophthalmus gralli.It was thought from the above survey that the fowls may be infected by eating the raw aquatic plants, fresh water snails,and other small aquatic animals which carried the metacercariae when they were feeding in the rice fields and small rivers.

    1·广东省家禽嗜眼吸虫病的流行情况是:经调查的252只鸭中,阳性194头,感染率为76.9%;57只鹅中,阳性21头,感染率为36.8%;193只鸡中,阳性14头,感染率为7.3%。在广州市郊的沙河公社猎德大队,调查632只2—4周龄雏鸭的结果,阳性364头,感染率为57.59%。以上结果说明嗜眼吸虫病在家禽中以水禽的感染率较高。虫体对幼禽的危害性大,死亡率也高;中禽能耐过,但严重影响生长发育。 2.家禽嗜眼吸虫的中间宿主为瘤拟黑螺[Melanoides tuberculata(Muller)]和另一种黑螺即斜粒粒蜷[Thiara(Tarebia)granifera(Lamarck)]两种,但以前者为主。在广东地区,一年四季瘤拟黑螺均有感染,其感染高低与气候环境有很大关系,其中以6—9月份为最高峰(猪德29.3%,康乐34.0%),至1—3月份其感染率最低(12.9%)。如孳生在与河水小支流相通的水沟或稻田,其感染率较高(冼村19.15%),但孳生在不与河水相通的田间、水沟或池塘,其感染率为阴性。如靠近养禽场附近的瘤拟黑螺,其感染率较高,但与养禽场距离较远的地区,其感染率为阴性。 3.鸡嗜眼吸虫的尾蚴从螺体逸...

    1·广东省家禽嗜眼吸虫病的流行情况是:经调查的252只鸭中,阳性194头,感染率为76.9%;57只鹅中,阳性21头,感染率为36.8%;193只鸡中,阳性14头,感染率为7.3%。在广州市郊的沙河公社猎德大队,调查632只2—4周龄雏鸭的结果,阳性364头,感染率为57.59%。以上结果说明嗜眼吸虫病在家禽中以水禽的感染率较高。虫体对幼禽的危害性大,死亡率也高;中禽能耐过,但严重影响生长发育。 2.家禽嗜眼吸虫的中间宿主为瘤拟黑螺[Melanoides tuberculata(Muller)]和另一种黑螺即斜粒粒蜷[Thiara(Tarebia)granifera(Lamarck)]两种,但以前者为主。在广东地区,一年四季瘤拟黑螺均有感染,其感染高低与气候环境有很大关系,其中以6—9月份为最高峰(猪德29.3%,康乐34.0%),至1—3月份其感染率最低(12.9%)。如孳生在与河水小支流相通的水沟或稻田,其感染率较高(冼村19.15%),但孳生在不与河水相通的田间、水沟或池塘,其感染率为阴性。如靠近养禽场附近的瘤拟黑螺,其感染率较高,但与养禽场距离较远的地区,其感染率为阴性。 3.鸡嗜眼吸虫的尾蚴从螺体逸出后,在外界环境遇到任何硬的东西,经10—20分钟后,即可形成囊蚴,不需要第二中间宿主。通过观察,从流行地区采回的各种贝类、各种椎实螺、各种扁螺、瘤拟黑螺、田螺和河蚬的外壳以?

    Mercury, DDT and BHC accumulate strongly in aquatic organisms and bear a direct ratio to the trophic level and mercury is more than the other two. Mercury concentrations in planktons, benthos, herbivorous fish, omnivorous fish, carnivorous fish and water fowl in vivo are 0.34, 0.48, 0.90, 1.28, 1.70 and 3.29 ppm, respectively, in estuary of Jiyun Riyer.

    在蓟运河河口生态系统中,水生生物对汞、DDT、六六六均有很强的积累能力,体内积累量大体上有沿生物营养等级而增高的趋势,尤以汞最为明显。汞在浮游生物、底栖动物、草食性鱼类、杂食性鱼类、肉食性鱼类及水鸟体内的平均含量分别为0.34、0.48、0.90、1.28、1.70和3.29mg/kg。 六六六的浓缩因子较小(10~2),且易于排出;DDT的积累能力最强(10~4),但在生物体内易转化成毒性较小的DDE和DDD;汞有较强的富集能力(10~3),可在生态系统中循环住复。

    Cramming geese with corn of high energy and low choline for 3-4 weeksproduced fatty livers seven times the nomal ones in average.The results showed the specific characteristics of fatty metabolism in poultryand water fowl liver. The liver of poutry is the main organ of fatty synthesisand deposition. It was held that fast-growing fatty liver is a stress phenomenonin geese and cramming is a biological stress. The qualitative evaluation of fatty liver includes weighing, tasting and quan-titative analyses....

    Cramming geese with corn of high energy and low choline for 3-4 weeksproduced fatty livers seven times the nomal ones in average.The results showed the specific characteristics of fatty metabolism in poultryand water fowl liver. The liver of poutry is the main organ of fatty synthesisand deposition. It was held that fast-growing fatty liver is a stress phenomenonin geese and cramming is a biological stress. The qualitative evaluation of fatty liver includes weighing, tasting and quan-titative analyses. Quantitative analyses showed that the water content in fattylivers was redused by 29%, while the percentage of try matter was increased ev-ideutly, of which the content of crude fat rose from 4.1% to 50.7% (P<0.01),crude protein showed little change, iodine value is 44, indicating that the unsa-turated fatty acid was increased, the oleic acid rose from 45.71% to 60.51%.The result above showed that the content of unsaturated fatty acid in fatty liver(61.2) is the highest in animal fat and is able to be compared with plant oil.The total of amino acid changed little, but those amino acids essential for humanbeings (e.g. tryptophan, valine, methionine etc.) were all increased. It is concluded that the nutritive value of fatty livers is much higher than nomal ones.

    采用高能量低胆碱含量的玉米作为填料。对3-4月龄的仔鹅经过3-4周的人工强制填肥,在肝内能迅速沉积脂肪,形成比正常肝平均大7倍以上的肥肝。结果进一步证实了禽类、特别是水禽肝脏脂肪代谢的特殊性,禽类的肝脏是合成和贮存脂肪的主要器官。同时还认为鹅的快速生长肥肝是一种应激现象,强制填肥过程应视为一种生理性的致应激因素。对鹅肝品质分析表明,肥肝比正常肝水分减少29%,干物质的百分含量明显增加,其中粗脂肪含量由4.1%升高到50.7%,差异极显著(P<0.01)。粗蛋白变化不明显。测定肥肝的磷价为44,0,不饱和脂肪酸含量增加,尤其是18碳-烯酸含量由45,71%增加到60.51%。肥肝中不饱和脂肪酸的含量(61,2)是动物油中含量最高的,可与植物油相媲美,氨基酸总量在填肥前后无明显变化,但人体所必需的氨基酸,如蛋氨酸、缬氨酸辱含量增加了。从而大大提高了肥肝的营养价值。

     
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