不同离心液对猪孤雌激活胚胎的冷冻效果  

Vitrification of in vitro produced porcined parthenogentic embryos at different centrifugal liquids

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作  者:许惠艳[1] 胡林林[1] 杨小淦[1] 卢克焕[1] 

机构地区:[1]广西大学动物科技学院亚热带生物资源保护利用国家重点实验室,广西南宁530004

出  处:《中国兽医学报》2014年第2期357-360,共4页Chinese Journal of Veterinary Science

基  金:广西自然科学基金资助项目(2011GXNSFA-018074);广西自然科学基金重点资助项目(2010GXNSFD-013024);广西大学校科研基金资助项目(XJZ110612)

摘  要:以猪孤雌激活胚胎为材料,经体外成熟、电激活,选取电激活后3d(6--8cell)胚胎分别放入0.28mol/L的蔗糖离心液或无蔗糖离心液中离心处理后,继续培养5d,取扩张囊胚进行玻璃化冷冻保存。结果显示,在囊胚形成率上,无蔗糖组(19.86%)略高于蔗糖组(18.83%),差异不显著(P〉0.05);胚胎复苏率上两者差异不显著,但蔗糖组(43.33%)明显好于无蔗糖组(29.63%);在解冻后胚胎内细胞破损率上,无蔗糖组(20.18%)低于蔗糖组(29.13%),差异不显著(P〉0.05)。因此,离心液中添加蔗糖,对后续囊胚形成无影响,在一定程度上提高了解冻囊胚复苏率,但没有降低内细胞的破损程度。Pig parthenogenetic embryos were as the material, after in vitro maturation,activation, chosen 3 d (6-8 cell )embryos into 0.28 mol/L sucrose centrifugal liquid with or without sugar, and then,centrifugal treatment respectively,continued to culture for 5 d,get expanded blastocyst for vitrification. The results showed that the blastocyst formation rate, no sugar group (19.86%) was slightly higher than sucrose (18.83%),but no significant difference (P〈0.05)The embryo recovery rate,in no sugar group (29.63%) was lower than sucrose group(43. 33%) ,but no significant difference (P〈0.05)The inner cells broken ratio,in no sugar group (20.18%) was lower than sucrose group (29.13%),no significant difference (P〉.05). Centrifugal liquid adding su crose was no influence on subsequent blastocyst formation,increased the thawing recovery blasto cysts rate at a certain extent,but didn't reduce the inner cells damage degree.

关 键 词:离心液 冷冻 孤雌激活胚胎  

分 类 号:S814.8[农业科学—畜牧学]

 

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