Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"In Vitro Produced Embryos"”.
-
Improving the development of bovine in vitro produced embryos cultured individually
Previous research in bovine embryology has found that embryos cultured individually have limited ability to develop compared to their counterparts cultured in a group of other embryos. This investigation aimed to find if any of three different interventions over two experiments would increase …
-
Effects of Dietary Conjugated Linoleic Acid Supplementation on Bovine Oocyte Lipid Metabolism, Lipid Composition and Embryo Cryotolerance
Variation in cryotolerance exists between embryos from different animal breed, species and management conditions. Reduced tolerance to chilling and cryotolerance of oocytes and embryos has been associated with greater cytoplasmic lipids (Kim et al., 2001; Seidel, 2006). Previous studies in the cow …
-
Interleukin-6 and its Contribution to Embryogenesis in Cattle
In vitro systems like those used for in vitro embryo production are invaluable for our understanding of embryogenesis and the processes that regulate it. However, extensive research has also highlighted that in vitro produced embryos negatively differ from their in vivo counterparts in various …
-
Effects of Polydatin on In Vitro Bovine Embryo Developmental Competence, Metabolism, and Cryopreservation
<p>Bovine <em>in vitro</em> produced embryos suffer from poor developmental competence and altered metabolism which hinders their cryotolerance. Overall, the goals of this thesis were to improve oocyte and embryo culture with the antioxidant polydatin and to optimize slow freezing procedures. This …
-
Maturation and Culture Media Effects on In Vitro Bovine Embryo Developmental Competence
<p><em>In vitro</em> produced bovine embryos are critical to the cattle industry. However, these embryos have altered morphology, epigenetics, and metabolism when compared to their <em>in vivo </em>counterparts. The aim of this thesis was to alter maturation and culture media to improve the …
-
IN VITRO EMBRYO PRODUCTION IN WOOD BISON (Bison bison athabascae)
The studies presented in this thesis were designed to develop efficient protocols for collecting competent oocytes and to produce disease-free wood bison embryos by in vitro fertilization and culture. In Chapter 3, the in vivo and in vitro maturational characteristics of cumulus-oocyte complexes …
-
Factors affecting the quality and function of the bovine periovulatory follicle
… management programs. Opportunities for improving fertility exist within the numerous challenges related to reproductive management. Non-conventional, creative tools for reproductive management could help producers overcome these challenges. In an effort to produce information that could be …