Effect of circulating prolactin, lactation days, and seasonal variations on first artificial insemination pregnancy rates using the PG7G protocol in dairy cows
Extending the VWP from 63 to 73 days pp in lactating Holstein cows significantly improved pregnancy rates, while seasonality affected reproductive outcomes, with higher pregnancy rates in moderate temperatures and increased pregnancy loss during hot seasons.
Authors
- Mohamed A. Abedal-Majed (ORCID: https://orcid.org/0000-0003-3088-9528)
- Ahmad I. Shamoun (ORCID: https://orcid.org/0000-0002-4725-1638)
- Mohmmad Al‐Qaisi (ORCID: https://orcid.org/0000-0002-0020-3428)
- Mufeed A. Alnimer (ORCID: https://orcid.org/0000-0001-6222-7655)
Institutions
- University of Jordan (JO)
Publication Details
- Journal
- Veterinary World
- Published
- 2025-01-01
- DOI
- https://doi.org/10.14202/vetworld.2025.40-51
- Primary Topic
- Reproductive Physiology in Livestock
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- University of Jordan
- Deanship of Scientific Research, University of Jordan