By Mallikarjun Bidarimath
Submitted in partial fulfilment of the requirements
for the measure of grasp of Science
at Dalhousie collage Halifax, Nova Scotia
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Extra resources for EFFECT OF OMEGA-3 FATTY ACIDS ON THE OVARIES OF LACTATING DAIRY COWS
2006b), suggesting that it was PUFAs that were most effective. The number of 5 to 10 mm size follicles was higher in dairy cows that were fed a diet enriched with 5% n-3 PUFAs derived from fish oil (Moussavi et al. 2007). Robinson et al. (2002) observed similar results when diets containing linolenic (n-3) and linoleic (n-6) acid protected PUFAs were fed to dairy cows. Staples and Thatcher (2005) summarized the studies on the effect of supplemental fat on the diameter of the dominant follicle in dairy cows.
There was no significant effect of n-3 PUFAs on the mean numbers and size of developing follicles (Petit et al. 2002). In contrast, Bilby et al. (2006a) found that the number and size of the developing follicles increased in cows fed PUFA enriched diets. In summary, previous observations indicate that supplemental dietary fatty acids can provide a concentrated energy source, and if protected from the ruminal biohydrogenation, can deliver specific PUFAs to the intestines for absorption. Previous studies report beneficial effects of EPA and DHA when absorbed in increased amounts into the blood that may favor reproductive success.
7 Ovulation of the Preovulatory Follicle Ovulation is a complex process characterized by the discharge of a mature ovum from the ovary. 1; Algire et al. 1992). After the LH surge, PGF2Į and prostaglandins of the E series are produced by the ovary (Aerts and Bols 2010). Prostaglandins of the E series are necessary for the successful rupture of the preovulatory follicle and the release of an oocyte into the periovarian space (Filion et al. 2001). Prostaglandin E2, along with histamine produced by the blood cells, will cause hyperemia (elevated blood flow at local tissue) in the ovarian tissue (Algire et al.