The failure of hamster 2-cell embryos to develop in vitro (2-cell block) was examined with
experiments in which concentrations of glucose and phosphate in the culture medium were …

The influence of sodium dihydrogen phosphate (Pi) and glucose on the development of
hamster 8-cell embryos mediated by pyruvate (P) or amino acids (A) or lactate (L) was …

Rat one-cell embryos recovered from naturally mated females were cultured in modified
hamster embryo culture medium 1 without amino acids. In the presence of 0.4 mmol …

Relative preferences of energy substrates (glucose, pyruvate, and lactate) for in vitro
development of hamster 8-cell embryos were investigated. Using protein-free modified …

One-cell CF-1× B 6 SJLF 1/J embryos, which usually exhibit a 2-cell block to development in
vitro, have been cultured to the blastocyst stage using CZB medium and a glucose washing …

Hamster embryos cannot complete the second cleavage division in vitro in the presence of
glucose and inorganic phosphate (Glu/Pi). Embryos can recover from an 8 h (12: 30–20: 30 …

Energy substrate requirements (pyruvate, lactate and amino acids) were determined for in-
vitro development of hamster 1-and 2-cell embryos to blastocysts, using a chemically …

The development of hamster eight‐cell embryos is inhibited by glucose in culture medium
containing inorganic phosphate (Pi). This is hypothetically attributed to the “Crabtree effect,” …

One‐cell hamster embryos placed in culture have always shown a complete block to
development at the two‐cell stage. In a preliminary study using a chemically defined culture …

For the two-cell mouse embryo to develop into a blastocyst in vitro, the culture medium must
contain both an energy source and a fixed nitrogen source. However, under the same …