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Item Metadata only Human sperm fertility testing : comparison among conventional semen analysis, zona-free hamster egg penetration assay and a simple in vitro assay mehtod(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Charoensri Thonabulsombat; Kanok Pavasuthipaisit; Krisada Ratana-olarnTo search for a simple, convenient, inexpensive and accurate method to detect male infertility, we have developed an in vitro test using simple incubation method. The basic for this test is to observe sperm motility with forward progression in an 8... analysis was found in an 8-h in vitro test whereas zona-free hamster egg penetration assay could not detect these differences. This study demonstrates that we have developed a simple, convenient inexpensive and accurate technique to detect male infertilityItem Metadata only The viability testing of frozen-thawed bovine embryo produced in vitro(Mahidol University. Mahidol University Library and Knowledge Center, 1993) Chainarong Tocharus; Kanok Pavasuthipaisit; Prasert Sobhon; Sukumal ChongthammakunItem Metadata only Sex determination of bovine embryos using H-Y antibody(Mahidol University. Mahidol University Library and Knowledge Center, 2024) Mayuva Areekijseree; Kanok Pavasuthipaisit; Prapee Sretarugsa; Yindee KitiyanantThe purpose of this study was to produce H-Y antibody from adult C57 BL/6 female mice, to test the titer and specificity of H-Y antibody by sperm cytotoxicity assay and to determine the sex of transferable stage of bovine embryos by using H-Y... classified as either H-Y positive (male embryo) or H-Y negative (female embryo). Moreover, the alternation of sex ratio during the developmental stage of embryo were investigated. The sex of 192 bovine embryos produced by in vitro fertilization were