This research was investigated the relationship, in high-producing Holsteindonor cows, between the ... donor cows. ... CIDRs were inserted into the vaginas of twenty two heads of Holstein cows, regardless of estrous cycle
donor cows. ... CIDRs were inserted into the vaginas of twenty two head of Holstein cows, regardless of estrous cycle ... estrus expression rate, BCS (Body Condition Score), which affect the nutritional state of the cow, in Holstein
Donor Cows. ... CIDRs were inserted into the vaginas of twenty two head of Holstein cows, regardless of estrous cycle ... this study was to investigate the effects of abnormal ovarian cycles after superovulation treatment of Holstein
embryos, however embryo production from superior Holstein donors was unsatisfactory for application ... selected as donors. ... The donors were superovulated with pFSH and the embryos collected from donors were frozen and preserved
Seventeen Hanwoo cows were used as donors for production of in-vivo embryos and fresh hanwoo in-vivo ... embryos were transferred to 1,150 Holsteins. ... And 2 embryos were transferred to 188 Holstein recipients to produce twin calves.
Embryo collection records were obtained from 177 embryo donor collections from 98 Holstein cows aged ... The present study was carried out to investigate effects of gonadotropin, age of donor, day of estrus ... Em-bryos were collected from donors using a nonsurgical technique on days 6 to 8 after insemi-nation.
Fusion rate of recipient oocyte and donor cell was not different between the Hanwoo and Holstein recipient ... As donor cells for SCNT, ear skin cells from Jeju native cattle were used. ... derived from Hanwoo recipient oocytes contained higher numbers of total cells than those derived from Holstein
heifers, one Korean native heifer and 3 holstein cows) were transfered one embryo (from morulae stage ... pregnancy rates according to the factors, age, season, repeated utilization, synchrony, of recipients (29 holstein ... 공란우와 수란우의 발정동기화의 시차에 따른 수태율은 -(before donor) 12 시간, -6 시간, +(after donor) 6시간, +12 시간, 그리고 +12시간 이상에서
1. 75.0% of donor cattle were reacted to hormonal treatment far superovulation. 2. ... transferred to 17 recipients(10 Holstein, 7 Hanwoo). ... Fresh embryos were transferred to 25 recipients(14 Holstein, 11 Hanwoo), whereas frozen embryos were
For this study a total of 10 Holstein crossbred cows having history of failure of conception even after ... The results indicated that out of 10 donors, 8 responded to superovulatory treatment and yielding a total ... repeat breeding cows having conception failure after several artificial inseminations can be used as donors
In vitro matured Hanwoo or Holstein oocytes were enucleated, and single donor cells were transferred ... Hanwoo ear skin fibroblasts were used as donor cells. ... recipient oocytes contained significantly (p<0.05) higher numbers of total cells than those derived from Holstein
of cioprostenol at 11 days showed significantly high no. of animals in estrus in order of crossbred, Holstein ... those exhibited estrus (40.3%) or exhibited estrus before the donor (37.5%). ... The pregnancy rate in the recipients exhibited estrus later than the donor (66.7%) was the higher than
to 33 recipients. (29 holstein heifers, 3 holstein cows and 1 Korean native heifer). ... Thirty eight eggs were obtained from 6 donors by flushing the uterine horns and 33 embryos were transfered ... These results are showing the possibility that utilizing the repeat breeders as donors in embryo transfer
Blastocysts for the donor of embryo transfer were classified into three criteria by accessment of morphology ... On pregnancy of Holstein, 2(15.4%) out of 13 recipients were pregnant in heifer. ... Tow embryos were introduced transcervically into utrerine horn either of Hanwoo or Holstein by ipsilaterally
Four non-pregnant and 2 pregnant Holstein heifers were used as donor and then carried out total 17 OPU ... for Ovum Pick-Up (OPU) derived oocyte aspiration and embryo production in Holstein heifers. ... 비인신우에서는 68회 채란으로 생성된 난포수는 72 This study was carried out to evaluate the effect of early pregnant cow as donor
Heat inducing rate after 1st and 2nd injections of PGF in Holstein and beef cattle was 83.3% and 71.4% ... Donor cows were flushed to collect embryos on day 7 or 8 of the estrus cycle. ... Total of 24 embryos were collected from 7 donor cows flushed and transferable embryos were 18 (75.0%)
The heat detected donors were administered 200 ug LH-RH and inseminated twice with 2 straws of frozen ... Sixteen Holstein cows were used the test the efficacy of three superovulation regimens using Folltropin ... conducted to improve the efficiency of embryo recovery and to establish the protocols of superovulation in Holstein
concentrate was used as rumen fluid donor. ... A Holstein cow, surgically fitted with a ruminal cannula, consuming 0.40 Italian ryegrass and 0.60 corn-based