Abstract
The general objective of this study was to perform follow-up studies including selected peri- and postnatal characteristics on calves born after transfer of in vitro produced (IVP) embryos vitrified by the 'Open Pulled Straw' (OPS) method. An overall pregnancy rate of 16% after transfer of the OPS-vitrified IVP embryos was achieved and resulted in birth of 9 calves, with 11 AI calves serving as controls. There were no immediate or long-term effects on these calves with respect to birth weight, gestation length, perinatal mortality, growth rate, disease susceptibility and reproductive performance.
Original language | English |
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Journal | Acta Veterinaria Scandinavica |
Volume | 44 |
Issue number | 1-2 |
Pages (from-to) | 87-95 |
ISSN | 0044-605X |
DOIs | |
Publication status | Published - 2003 |
Keywords
- growth rates
- long-term studies
- reproductive status
- disease susceptibility
- IVP calves
- OPS vitrification