Meta-analysis of the incidence of pregnancy losses in dairy cows at different stages to 90 days of gestation
| Autor: | A. Albaaj, J. Durocher, S.J. LeBlanc, S. Dufour |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | JDS Communications, Vol 4, Iss 2, Pp 144-148 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2666-9102 2022-0278 |
| DOI: | 10.3168/jdsc.2022-0278 |
| Popis: | Pregnancy losses are a biological challenge and economically important in dairy herds. A meta-analysis was conducted to quantify losses in 4 periods from 19 to 90 d of pregnancy corresponding to the physiological development of gestation in dairy cows. A total of 19,723 diagnostic records from 46 studies were included. Pregnancy losses averaged 27%, 13%, 7%, and 2% in the early embryonic (19 to 32 d), late embryonic (30 to 45 d), early fetal (45 to 60 d), and later fetal (60 to 90 d) stages. These results provide a formal synthesis of the incidence of pregnancy losses in dairy cows. |
| Databáze: | Directory of Open Access Journals |
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