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Polyunsaturated fatty acids influence offspring sex ratio in cows

Marei, W F A; Khalil, W A; Pushpakumara, P G A; El-Harairy, M A; Abo El-Atta, A M A; Wathes, D C; Fouladi-Nashta, A A


W F A Marei

W A Khalil

P G A Pushpakumara

M A El-Harairy

A M A Abo El-Atta

D C Wathes

A A Fouladi-Nashta


Dietary polyunsaturated fatty acids (PUFAs) can influence fertility in farm animals. Some evidence in mice and sheep have suggested that PUFAs may influence offspring sex ratio, which may have significant value for cattle production. To test this hypothesis, three groups of Holstein cows were supplemented with either 0%, 3% or 5% protected fat (PF) in the form of calcium salt of fatty acids (rich in omega-6) from 14–21 days pre-partum until conception. Proven-fertile frozen semen from the same ejaculate was used for insemination. Calf sex recorded at birth was 8/19 (42.1%) male offspring in the control group, increasing to 14/20 (70%, P > 0.05) and 17/20 (85%, P 


Marei, W. F. A., Khalil, W. A., Pushpakumara, P. G. A., El-Harairy, M. A., Abo El-Atta, A. M. A., Wathes, D. C., & Fouladi-Nashta, A. A. (2019). Polyunsaturated fatty acids influence offspring sex ratio in cows.

Journal Article Type Article
Acceptance Date Jan 30, 2018
Publication Date May 3, 2019
Deposit Date Feb 17, 2018
Publicly Available Date Feb 17, 2018
Journal International Journal of Veterinary Science and Medicine
Peer Reviewed Peer Reviewed
Volume 6
Pages S36-S40
Public URL


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