Reproduction biotechnology in beef cattle and its application in Northeast Mexico: follicular aspiration and in vitro fertilization
Reproductive efficiency of the beef cattle herd is the most determining factor of the herd productivity, likewise, the herd productivity depends directly on the utilization of the available biotechnology of reproduction. The available methodology in biotechnology of reproduction includes semen freezing, artificial insemination, synchronization and/or induction of estrus and ovulation, superovulation and embryo transfer and freeing, embryo dissection and ovum pick up and in vitro fertilization (OPU/FIV). The OPU/FIV of the UGRT, in northeast Mexico was established in febrary, 2018. From march through september, 250 OPU sessions were conducted using beef cows of several breeds; a total of 5,168 ovocytes were aspirated (22.4 per cow), with 62 % of viable ovocytes (13.9 per cow). Cleavage rate was 41.2 % (7.85/cow) and the embryo rate was 48.9 % (3.99 embryos per cow).
| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Asociacion Latinoamericana de Produccion Animal
2023
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| Online Access: | https://ojs.alpa.uy/index.php/ojs_files/article/view/3239 |
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| Summary: | Reproductive efficiency of the beef cattle herd is the most determining factor of the herd productivity, likewise, the herd productivity depends directly on the utilization of the available biotechnology of reproduction. The available methodology in biotechnology of reproduction includes semen freezing, artificial insemination, synchronization and/or induction of estrus and ovulation, superovulation and embryo transfer and freeing, embryo dissection and ovum pick up and in vitro fertilization (OPU/FIV). The OPU/FIV of the UGRT, in northeast Mexico was established in febrary, 2018. From march through september, 250 OPU sessions were conducted using beef cows of several breeds; a total of 5,168 ovocytes were aspirated (22.4 per cow), with 62 % of viable ovocytes (13.9 per cow). Cleavage rate was 41.2 % (7.85/cow) and the embryo rate was 48.9 % (3.99 embryos per cow). |
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