手法を比較

	胚移植成績評価	精液品質評価
分野	畜産学	畜産学
系統	Process / pipeline	Process / pipeline
提唱年	1970s	1970s
提唱者	Reproductive Physiologists and Embryologists	Veterinary Andrologists and Reproductive Physiologists
種類	outcome assessment	assessment and evaluation
原典	Bousquet, D., Thibault, C., & Gervais, D. (1985). Evaluation of the fertility of bovine embryos. Theriogenology, 24(1), 1-14.	Coulter, G. H., & Foote, R. H. (1997). Infertility in bulls: Summary of causes and breeding soundness evaluation. Journal of Dairy Science, 62(11), 1812-1829.
別名	ET success rate, embryo transfer outcomes, recipient pregnancy assessment	breeding soundness examination, seminal analysis, sperm quality assessment
関連	3	3
概要	Embryo transfer (ET) success evaluation is the systematic assessment of pregnancy establishment and calving outcomes following embryo implantation. Developed by reproductive physiologists in the 1970s-1980s, the method measures conception rates, pregnancy retention, calving rates, and calf viability to quantify the efficacy of ET programs and identify factors affecting outcomes. Success assessment is critical for optimizing ET protocols and managing investment in breeding programs.	Semen quality evaluation is a systematic assessment of male animal reproductive capacity, measuring sperm characteristics and overall breeding soundness. Developed by veterinary andrologists in the 1970s, the practice combines objective measures—sperm concentration, motility, morphology—with functional tests to predict fertility potential. Evaluation is essential for identifying suitable breeding animals, managing reproductive health, and ensuring successful artificial insemination (AI) programs.