title: Effect of varying glucose concentrations during in vitro maturation and embryo culture on efficiency of in vitro embryo production in buffalo.
abstract: This study was aimed to optimize glucose level at different stages of buffalo in vitro embryo production procedure. Three glucose levels (1.5, 5.6 and 10 mm) along with a control (0 mm) were used at three phases of in vitro fertilisation (IVF) procedure viz. in vitro maturation (IVM), in vitro culture (IVC-I) (12-72 hpi) and IVC-II (72 hpi to 7 dpi). Maturation rate of oocytes was found different under different glucose concentrations, and significantly more number of oocytes reached to MII under 5.6 mm glucose. The glucose levels at each phase (IVM, IVC-I and IVC-II) individually had significant effect on blastocyst rate, and the level used at one phase had significant effect on the outcome of next phase. Complete withdrawal of glucose from any of these stages irrespective of concentrations used at subsequent stage/s resulted in significantly lower number of blastocysts. However, the changing levels of glucose had differential effects during different phases of IVF steps. The most prominent effect of glucose level was observed during IVM. The presence of 5.6 mm glucose at all stages was most effective to yield highest blastocyst rate in buffalo IVF system.
authors.affiliation: Department of Haematology, Lund University, Lund, Sweden.
authors.forename: P
authors.initials: P
authors.lastname: Kumar
authors.forename: A
authors.initials: A
authors.lastname: Verma
authors.forename: B
authors.initials: B
authors.lastname: Roy
authors.forename: S
authors.initials: S
authors.lastname: Rajput
authors.forename: S
authors.initials: S
authors.lastname: Ojha
authors.forename: S
authors.initials: S
authors.lastname: Anand
authors.forename: P
authors.initials: P
authors.lastname: Yadav
authors.forename: J
authors.initials: J
authors.lastname: Arora
authors.forename: S
authors.initials: S
authors.lastname: De
authors.forename: S I
authors.initials: SI
authors.lastname: Goswami
authors.forename: T K
authors.initials: TK
authors.lastname: Datta
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000187:drug effects* / Q000502:physiology; D002020:Buffaloes; D003470:Culture Media; D004305:Dose-Response Relationship, Drug; D046149:Embryo Culture Techniques / Q000662:veterinary*; D005260:Female; D005307:Fertilization in Vitro / Q000662:veterinary; D005947:Glucose / Q000494:pharmacology*; D059471:In Vitro Oocyte Maturation Techniques / Q000662:veterinary*; D008297:Male
chemical_list: D003470:Culture Media; D005947:Glucose