Table 1. The uptake of pyruvate and glucose and the production of lactate by individual bovine embryos produced in vitro.
| Day of culture | Stage | Pyruvate uptake(pmol/embryo/h) | Glucose uptake(pmol/embryo/h) | Lactate production(pmol/embryo/h) |
| 1–2 | 2–4 cells | 5.08±0.44a,b,c,d (88) | 2.33±0.26a,b,c,d (83) | 1.67±0.24a,b,c,d (118) |
| 2–3 | 5–8 cells | 5.43±0.48e,f,g,h (74) | 2.59±0.37e,f,g (56) | 3.62±0.42e,f,g,h (106) |
| 4–5 | Morula | 9.51±0.89a,e,i,j,k,l (31) | 7.20±1.28a,h,i,j (32) | 14.72±1.20a,e,i,j,k (44) |
| 5–6 | Early blastocysts | 16.43±1.26b,f,i,j,m (54) | 14.31±1.14b,e,h,k,l (57) | 23.62±1.40b,f,i,l,m (74) |
| 6–7 | Expanded blastocysts | 22.03±1.02c,g,k,m,n (47) | 34.23±1.82c,f,i,k,m (85) | 51.12±2.39c,g,j,l,n (123) |
| 7–8 | Hatched blastocysts | 16.76±2.11d,h,l,n (26) | 56.29±2.91d,g,j,l,m (31) | 85.98±4.47d,h,k,m,n (46) |
Number of samples are indicated in brackets.
Values with the same superscript in each column are significantly different (p<0.05).