EARLY EMBRYONIC-DEVELOPMENT IN-VITRO AND EMBRYO-TRANSFER IN THE CAT

被引:30
作者
KANDA, M [1 ]
OIKAWA, H [1 ]
NAKAO, H [1 ]
TSUTSUI, T [1 ]
机构
[1] NIPPON VET & ANIM SCI UNIV, DEPT REPROD, MUSASHINO, TOKYO 180, JAPAN
关键词
EMBRYO DEVELOPMENT; EMBRYO TRANSFER; FELINE; IN VITRO CULTURE; PREGNANCY;
D O I
10.1292/jvms.57.641
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Ten female cats were given a total dose of 200 IU PMSG over 3 days to induce superovulation. One to four-cell stage embryos were collected by flushing the oviducts 48 to 54 hr after the initial 250 IU dose of hCG. Some of the normal embryos collected were examined for culture in Medium-199 supplemented with 20% FCS. After 72 hr of culture, 222/248 (89.5%) had developed to the morula stage, and by 96-168 hr, 110 (64.7%) out of 170 morulae had developed into blastocysts. Four to 12 embryos cultured in vitro per cat were transferred to one of the uterine hems of 12 recipients in which synchronous ovulation had been induced with hCG. All 4 recipients of embryos which had developed to the morula stage on culture day 3, 3 of the 5 recipients of blastocysts on culture days 4-6, and none of the 3 recipients of blastocysts on culture day 7 became pregnant. It is concluded that early feline embryos are capable of efficiently developing into transferable morulae in vitro by ordinary culture methods, but that there is partial developmental arrest from the morula to the blastocyst stage.
引用
收藏
页码:641 / 646
页数:6
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