Parenteral Copper Administration at the Beginning of a Fixed-Time Artificial Insemination Protocol in Beef Cattle: Effect on Ovarian Function and Pregnancy Rates

The aim of this study was to evaluate the association between plasma copper (Cu) concentration and ovarian function during a fixed-time artificial insemination (FTAI) protocol and the effect of parenteral Cu administration (100 mg) at the start of such protocol (day 0) on area of preovulatory follic...

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Bibliographic Details
Published in:Biological trace element research 2022-04, Vol.200 (4), p.1617-1625
Main Authors: Anchordoquy, Juan Patricio, Lorenti, Santiago Nicolás, Polero, Gustavo Sebastián, Farnetano, Nicolás Agustín, Rosa, Diana Esther, Fabra, Mariana Carolina, Carranza-Martin, Ana Cristina, Nikoloff, Noelia, Furnus, Cecilia Cristina, Anchordoquy, Juan Mateo
Format: Article
Language:English
Subjects:
17β-Estradiol
Animals
Artificial insemination
Beef
Beef cattle
Biochemistry
Biological fertilization
Biomedical and Life Sciences
Biotechnology
Blood flow
Cattle
Copper
Copper - pharmacology
Corpus Luteum
Estradiol
Estrus Synchronization - methods
Female
Insemination, Artificial - methods
Insemination, Artificial - veterinary
Life Sciences
Nutrition
Oncology
Ovaries
Plasma
Pregnancy
Pregnancy Rate
Progesterone
Reproduction (biology)
Reproductive status
Sex hormones
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Summary:The aim of this study was to evaluate the association between plasma copper (Cu) concentration and ovarian function during a fixed-time artificial insemination (FTAI) protocol and the effect of parenteral Cu administration (100 mg) at the start of such protocol (day 0) on area of preovulatory follicle (APF); area of corpus luteum (ACL), plasma estradiol (E2), and progesterone (P4) concentrations; CL blood flow (CLBF); and pregnancy rate in beef heifers and cows. In cows, plasma Cu concentration on days 0 and 7 correlated positively with APF. Copper administration increased plasma Cu concentration and decreased APF and plasma E2 concentration (day 9), without modifying ACL, plasma P4 concentration, and CLBF (day 16) in cows. Pregnancy rate was higher in Cu-supplemented cattle on day 41 after FTAI as compared with controls (58.76 and 45.28%, respectively). In conclusion, Cu administration at the beginning of the FTAI protocol increased pregnancy rate in beef heifers and cows, modifying APF and plasma E2 concentration in the latter.
ISSN:0163-4984
1559-0720
DOI:10.1007/s12011-021-02795-y