Publications by authors named "Daisuke Funakoshi"
This study investigated the effects of timed artificial insemination (TAI) and equine chorionic gonadotropin (eCG) administration on lactating dairy cows under heat-stress conditions (average temperature-humidity index: 80). Timed artificial insemination was performed on the cows with (n = 57) or without (control, n = 41) supplementation with 500 IU of eCG at the day of PGF treatment using the CIDR-Ovsynch protocol. GnRH was administered, and a progesterone device (CIDR) was inserted on Day -10 of the treatment protocol.
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- The study tested the effectiveness of embryo transfer following artificial insemination (ETFAI) on dairy cows in southwestern Japan, with a sample of 56 cows.
- ETFAI showed a significantly higher conception rate (30.4%) compared to conventional AI (13.8%), but also had a higher fetal loss rate (38.1% vs. 7.4%).
- No significant differences were found in progesterone levels, but pregnant cows had lower rectal temperatures after embryo transfer, indicating a potential benefit of ETFAI in summer reproduction.