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1)  Helan Mountains
发情交配期
1.
Group characteristics of blue sheep (Pseudois nayaur) during rutting season in the Helan Mountains,China;
发情交配期贺兰山岩羊的集群特征
2)  Estrous cycle
发情周期
1.
Study on changes of productive hormones of Small Meishan pig during estrous cycle;
小梅山猪发情周期生殖激素变化的研究
2.
Observation on histological structure of corpus luteumin in the yak during estrous cycle;
牦牛发情周期黄体组织结构的观察
3.
Histological observations of follicular development in ovaries of yaks during estrous cycle;
牦牛发情周期中卵巢卵泡发育状况的组织学观察
3)  oestrus cycle
发情周期
1.
Research of Rabbit s uterus tissue texture of different periods of oestrus cycle;
家兔发情周期不同时期子宫组织结构研究
2.
The secretory characteristics of GTH and sexual hormone of Jining gray goat during the oestrus cycle;
济宁青山羊发情周期内促性腺激素和性激素分泌规律的研究
3.
To study on the validity of vaginal cytology to determine oestrus cycle,seven bitches ovariohysterectomized 45 days before were treated with intermuscular injection of estradiol benzoate and progesterone to simulate the patterns of estrogen and progesterone in bitches\' oestrus cycle.
本实验旨在通过外源性激素模拟犬发情周期,探讨阴道上皮细胞检查确定发情周期阶段的可行性。
4)  synchronous estrus
同期发情
1.
Observation of Result of Synchronous estrus Inducedby Medicament and Artificial Insemination in Goat;
药物诱发山羊同期发情和人工授精效果观察
2.
The local yellow cattle groups of CK,free supplementary feeding by farmers and supplementary feeding with mixed feed were injected by PG for one and two times to investigate the effect on synchronous estrus after the tested cattle were fed for three months.
将地方黄牛分为补饲混合精料组、农户自由补饲组和不补饲组进行饲养,3个月后用氯前列烯醇分别按1次和2次注射氯前列烯醇的方法进行同期发情处理。
3.
Accorded the method of Synchronous estrus and superovulation was applied to 35 Green goats.
通过对35只济宁青山羊进行同期发情和超数排卵研究,结果表明:经产母羊的受精卵未受精率极显著(P<0。
5)  estrus synchronization
同期发情
1.
Study of Estrus Synchronization on Liaoning Cashmere Goats;
辽宁绒山羊同期发情效果的研究
2.
Studies on the Experiment of Estrus Synchronization in Sheep and Goat with Progesterone Plug plus PMSG;
孕激素+PMSG对羊同期发情的试验研究
3.
Study of estrus synchronization in forest musk deer (Moschus berezovskii);
林麝同期发情技术的研究
6)  Estrous synchronization
同期发情
1.
Effect of Estrous Synchronization in Embryo Transfer Receptor Cow;
胚胎移植受体牛同期发情处理效果分析
2.
Estrous synchronization,superovulation and freezing conservation are key technique for embryo genic library foundation.
同期发情、超数排卵和胚胎冷冻保存技术相结合是建立胚胎基因库的核心技术。
3.
The heifers have a better result of Estrous synchronization with PMSG than postpartum cows.
为了研究不同激素对奶牛同期发情效果的影响,本实验选择了80头荷斯坦牛,根据直肠检查结果将牛群随机分为对照组和3个实验组,实验组分别采用定时输精法(GnRH)、PMSG法、PG法进行同期发情处理。
补充资料:欧洲式期权、美国式期权与亚洲式期权


欧洲式期权、美国式期权与亚洲式期权


  【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期,过了失效日后,权利即行作废。一些期权规定权利仅能在有效期的最后一天执行,这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行,这种期权被称为美国式期权(一~oPtions)。值得指出的是,虽名为欧洲式或美国式期权,但已无任何地理上的意义。由于欧洲式期权的规定过于严格,又出现了一种“改变的欧洲式期权”,它允许期权在一定的时间范围内进行交易。可见,美国式期权为期权购买者提供了更多的选择机会,因此,它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国,所交易的期权均以美国式为主,欧洲式期权虽仍存在,但其交易量已比不上美国式期权。 在so年代末期,市场上又出现了一种所谓亚洲式期权(asian ontions),但也无地理上的意义,其差别主要在于履约价值(exe而sev公此)的计算。以买权为例,无论是美国式期权或是欧洲式期权,执行权利所能得到的履约价值均为当时标的物的市价减去履约价格,再乘以合约所定的数量,但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止),减去履约价格,再乘以合约所定的数量。
  
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