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Effect of Gossypol on Bovine Blastocyst Attachment and Trophoblastic outgrowth in Vitro
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作者 曾国庆 Gurpreet Singh n.l.first 《Developmental and Reproductive Biology》 1993年第2期43-45,共3页
The presont study was carried out to investigate the effect of different amounts of gossypol on bovineblastocyst attachment and trophoblastic outgrowth in vitro. Bovine oocyte were collected from theovaries of slaught... The presont study was carried out to investigate the effect of different amounts of gossypol on bovineblastocyst attachment and trophoblastic outgrowth in vitro. Bovine oocyte were collected from theovaries of slaughtered cows and were matured and fertilized in vitro. Cleaved oocyte were culturedin CRlaa + BOEC and TC-199 + 10% FCS combined in an 1:1 ratio. After 8 days of co-culture,the hatched blastocysts were randomly allotted to different treatment groups. All were cultured ona fetal fibroblast monolaycr (prepared from bovine fetuses) in TC-199 culture medium supplementedwith 10% fetal calf serum (TCFCS). But the groups differed from one another in the dose ofgossypol given: 0.01 μg, 0.1 μg, 1 μg, 10 μs/ml, and no gossypol as control. All cultures wereperformed in 24-well culture plates at 39℃ with 5% CO_2 in air. The results indicate that the ratesof attached and outgrowing blastocysts in the medium containing 1 μg/ml gossypol were significantlylowcr than the control group (p<0.01) and outgrowth were inhibited by gossypol in a dose-dependent manner. 展开更多
关键词 GOSSYPOL BLASTOCYST Implantation ATTACHMENT Outgrowth.
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精子成熟和体外受精
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作者 n.l.first 陈东宝 《国外畜牧科技》 1989年第3期11-14,共4页
无论在体内或体外,精子和卵子的成熟对于受精的成功都是必需的。精子的成熟不仅包括在雄性动物体内所发生的过程,亦包括在雌性动物所发生的获能过程。牛精子是在输卵管中获能。在体内,获能活性存在于发情时的输卵管液中,而不存在于黄化... 无论在体内或体外,精子和卵子的成熟对于受精的成功都是必需的。精子的成熟不仅包括在雄性动物体内所发生的过程,亦包括在雌性动物所发生的获能过程。牛精子是在输卵管中获能。在体内,获能活性存在于发情时的输卵管液中,而不存在于黄化输卵管液中。实验证明,发情输卵管液的获能活性是因其中含有氨基多糖(Glycosaminoglycan):肝素或硫酸肝素。在体外,肝素可使牛精子获能,使鲜精或冻精的受精率超过70%。用肝素获能的精子作体外受精,已能使胚胎发育,并已出生犊牛。肝素使精子获能的机理尚不清楚。 展开更多
关键词 家畜 精子 成熟期 体外受精
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