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second reproduction
相关语句
  第二繁殖地
     NEW DISCOVERY OF SECOND REPRODUCTION BASE OF THE SHORT-BILLED GUILLEMOT (Synthliboramphus antiquus) IN CHINA
     中国扁嘴海雀第二繁殖地的发现
短句来源
  “second reproduction”译为未确定词的双语例句
     Experimental results show that acetaldehyde at concentration lower than 6 mg/L has no influence on first and second reproduction periods of Daphnia magna;
     实验结果表明,乙醛浓度低于6mg/L时,对大型首次和第二次生殖周期无影响。
短句来源
     and at concentration of 7~10 mg/L delays first reproduction period of Daphnia magna by 1~2 days and shortens second reproduction periods by 1~2 days.
     7~10mg/L时,使首次生殖周期推迟1~2d,使第二次生殖周期提前1~2d。
短句来源
     pphthalic acid at concentration lower than 32 mg/L has no influence on first and second reproduction periods, and at concentration of 64 ~ 256 mg/L delays first reproduction period by 1~2 days and second reproduction period shortens by 1~2 days.
     对苯二甲酸浓度32mg/L以下时,对首次和第二次生殖周期基本无影响; 64~256mg/L时,使首次生殖周期均推迟1~2d,第二次生殖周期均缩短1~2d。
短句来源
     and at concentration lower than 4000 mg/L has no influence on second reproduction period.
     浓度低于4000mg/L时,对第二次生殖周期无影响。
短句来源
     and at concentration of 64~256 mg/L,decreases first reproduction number by 62.9% ~75.3%,while at concentration lower than 16 mg/L has no influence on second reproduction number,and at concentration of 32~256 mg/L,decreases second reproduction number by 37.8%~78.1%.
     对苯二甲酸浓度低于32mg/L时,对首次繁殖数量无显著影响,浓度在64~256mg/L时,降低首次繁殖数量62.9%~75.3%;
短句来源
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  相似匹配句对
     Second,
     二是对于?
短句来源
     Second, the s
     第二章:追寻一个普通读者的阅读过程,寻找对诗集的戏剧性的体验。
短句来源
     The second chapter discusses the reproduction of concept and proposition.
     第二章论述概念和命题的再现。
短句来源
     Liver and Reproduction
     肝与生殖关系初探
短句来源
     Phospholipase C and Reproduction
     磷脂酶C与生殖
短句来源
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  second reproduction
Scallops generally took more time to regain their initial clapping capacity during the first (25-40?min) than during the second reproduction (20-30?min).
      
Gonad size, gamete volume fraction, and levels of gonadal protein and lipid were greater for mature scallops during the first than during the second reproduction.
      
Mean oocyte size was similar in all fed females at first reproduction, but significantly larger in fed than unfed females at second reproduction.
      
Diet had little or no effect on the relative abundance of spermatocytes, spermatozoa, or nutritive phagocytes in testes at first and second reproduction.
      
Gonad index was similar in both sexes at first reproduction, but it was higher in females than in males at second reproduction.
      
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The present paper reported a method for fast-proliferation of the fine strain (13—38) of sweet cherry by shoot tip culture and graftage of plantlets regenerated in vitro. Resting buds were cut from the strain to prepare bacteria-free explants. The shoot tip clones were established by culture on the MS medium supplemented with 0.1-0.5mg/l 6-BA, 0.1mg/l IAA, and differentiation of buds in the MS medium with 1-5mg/l ZT, 0.1—0.25mg/l IAA. The 4~8—10~8-fold increase of the buds were achieved in culture after one...

The present paper reported a method for fast-proliferation of the fine strain (13—38) of sweet cherry by shoot tip culture and graftage of plantlets regenerated in vitro. Resting buds were cut from the strain to prepare bacteria-free explants. The shoot tip clones were established by culture on the MS medium supplemented with 0.1-0.5mg/l 6-BA, 0.1mg/l IAA, and differentiation of buds in the MS medium with 1-5mg/l ZT, 0.1—0.25mg/l IAA. The 4~8—10~8-fold increase of the buds were achieved in culture after one year. The survival rate of these graftages is 20% to 70%. by the methods of bark graft and cut graft. on the four kinds of stocks The graft-affinity of the new stock strain 1090 is higher than the other stocks. There was a higher survival rate by treating with 200ppm NAA on the graft unions of scion and the stock. The survival plants grafted may be transplanted directly or cut off its buds as scions to get a second reproduction in spring of the next year.

本文报告通过茎尖培养及试管苗嫁接快速繁殖甜樱桃新品系13-38苗木。取新品系母树休眠芽制备成无菌外植体,分别在MS附加6-BA 0.1-0.5mg/l,IAA 0.1mg/l培养基及MS附加ZT1—1.5mg/l,IAA 0.1—0.25mg/l培养基中进行微型扦插及茎尖分化培养,建立茎尖无性系。试管苗年扩繁量为4~8和10~3。以新品系试管苗为接穗,采用切接,皮接两种方法嫁接于四种砧木,成活率为20—70%不等。实验表明13-38试管苗与砧木新品系1090试管幼苗的亲和力较好。接合部位预先施用200ppm的NAA可提高嫁接成活率。

This study examined the influence of different levels of dietary energy restriction on reproduction in Chinese Kunming mice. One hundred twenty weaning mice were randomly divided into three groups:group Ⅰ,fed ad libitum;group Ⅱ. the calorie intake was 80% of that in group Ⅰ;group Ⅲ,the calorie intake was 65% of that in group Ⅰ.Reproduction tests have been performed twice respectively at 30th days and 94th days during restriction.It is found:1)the first reproduction test showed that the rate of pregnancy and...

This study examined the influence of different levels of dietary energy restriction on reproduction in Chinese Kunming mice. One hundred twenty weaning mice were randomly divided into three groups:group Ⅰ,fed ad libitum;group Ⅱ. the calorie intake was 80% of that in group Ⅰ;group Ⅲ,the calorie intake was 65% of that in group Ⅰ.Reproduction tests have been performed twice respectively at 30th days and 94th days during restriction.It is found:1)the first reproduction test showed that the rate of pregnancy and other indexes of reproduction of all female mice were zero in group Ⅲ;there were no significant differences for rate of pregnancy of female mice between group Ⅰ and group Ⅱ(the rate of pregnancy of female animals were 45.00% versus 75.00% in group Ⅱ and group Ⅰ).2)the second reproduction test showed the rate of pregnancy of female mice in group Ⅲ was also significantly lower than that in other two groups(P<0.01),but there were no significant differences for every index of reproduction between group Ⅱ and group Ⅰ.It suggests that 35% energy restriction may retard the process ol animals reproducing maturity and may reduce the fertility of female animals with same age,but there is no significant influence by 20% energy restriction.3)by the end of this test, rate of sperm abnormality that increased with levels of restriction was significantly different from each other(P<0.01).It suggests thatdietary energy restriction has interfered the process of spermateliosis and may cause potential induced mutational lessons in sperm.4)by the end of this test,there were no significant differences for serum testosterone of male mice among three groups(P>0.05)

研究不同限食水平(自由摄食、80%热能摄入、65%热能摄入)对昆明种小鼠繁殖的影响。于限食第30天及第94天分别进行了两次繁试验,结果表明:限食第30天时,65%热能摄入组雌鼠的受孕率及其它各项生殖指标皆为零;80%热能摄取组雌鼠的受孕率为45.00%,低于自由摄食组(75.00%),但无显著性差异。限食第94天时,65%热能摄入组的受孕率仍显著低于80%热能摄入组及正常摄食组(P<0.01);而80%热能摄入组雌鼠各指标与自由摄食组间无显著性差异。表明35%水平的限食能延缓动物的生殖成熟过程,并使同年龄组的雌性动物生育力降低;但轻度限食对动物生殖功能影响不大。实验结束时,80%及65%热能摄入组雄性鼠的精子活动率均较自由摄食组动物低下(P<0.01);精子畸形率随限食水平的增高而增大,两组比较,P<0.01。提示限食干扰了精子的生长和发育过程,并对精子生长具有潜在的诱变性危害。实验结束时,各组雄性动物的血清睾酮值无显著性差异(P>0.05)。

狪n this paper, the effects of main pollutants acetaldehyde, pphthalic acid and ethylene glycol in fibre wastewater on reproduction of Daphnia magna were first investigated. Experimental results show that acetaldehyde at concentration lower than 6 mg/L has no influence on first and second reproduction periods of Daphnia magna;and at concentration of 7~10 mg/L delays first reproduction period of Daphnia magna by 1~2 days and shortens second reproduction periods by 1~2 days. pphthalic...

狪n this paper, the effects of main pollutants acetaldehyde, pphthalic acid and ethylene glycol in fibre wastewater on reproduction of Daphnia magna were first investigated. Experimental results show that acetaldehyde at concentration lower than 6 mg/L has no influence on first and second reproduction periods of Daphnia magna;and at concentration of 7~10 mg/L delays first reproduction period of Daphnia magna by 1~2 days and shortens second reproduction periods by 1~2 days. pphthalic acid at concentration lower than 32 mg/L has no influence on first and second reproduction periods, and at concentration of 64 ~ 256 mg/L delays first reproduction period by 1~2 days and second reproduction period shortens by 1~2 days. Ethylene glycol at concentration lower than 1000 mg/L has no poor influence on first reproduction period;and at concentration of 2000~4000 mg/L delays first reproduction period by 1 day;and at concentration lower than 4000 mg/L has no influence on second reproduction period. Acetaldehyde at concentration lower than 5 mg/L has no influence on first and second reproduction numbers of Daphnia magna;and at concentration of 6~10 mg/L decreases first and second reproduction numbers by 38.3%~ 74.1% and 12.8% ~65.3%, respectively. pphthalic acid at concentration lower than 32 mg/L has no influence on first reproduction number;and at concentration of 64~256 mg/L,decreases first reproduction number by 62.9% ~75.3%,while at concentration lower than 16 mg/L has no influence on second reproduction number,and at concentration of 32~256 mg/L,decreases second reproduction number by 37.8%~78.1%. Ethylene glycol at concentration lower than 500 mg/L has no influence on first and second reproduction numbers, and at concentration of 1000~4000 mg/L, decreases first and second reproduction numbers by 32.3%~77.8% and 42.2%~60.9% respectively.

为研究化纤工业对水域生态的长期效应,首次在实验室研究了化纤工业废水中主要污染物乙醛、对苯二甲酸、乙二醇对大型(Daphniamagna)生殖周期和繁殖数量的影响。实验结果表明,乙醛浓度低于6mg/L时,对大型首次和第二次生殖周期无影响。7~10mg/L时,使首次生殖周期推迟1~2d,使第二次生殖周期提前1~2d。对苯二甲酸浓度32mg/L以下时,对首次和第二次生殖周期基本无影响;64~256mg/L时,使首次生殖周期均推迟1~2d,第二次生殖周期均缩短1~2d。乙二醇浓度在1000mg/L以下时,对首次生殖周期无影响;2000~4000mg/L时,推迟首次生殖周期1d;浓度低于4000mg/L时,对第二次生殖周期无影响。乙醛浓度在5mg/L以下时,对首次和第二次繁殖数量无显著影响,浓度在6~10mg/L时,显著降低其繁殖数量,分别降低38.3%~74.1%和12.8%~65.3%。对苯二甲酸浓度低于32mg/L时,对首次繁殖数量无显著影响,浓度在64~256mg/L时,降低首次繁殖数量62.9%~75.3%;浓度低于16mg/L时,对第二次繁殖数量无显著影响,浓度在32~256mg/L时,使第二次繁殖数?

 
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