Karen E Wonnacott

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Different fatty acid (FA) sources are known to influence reproductive hormones in cattle, yet there is little information on how dietary FAs affect oocyte quality. Effects of three dietary sources of FAs (supplying predominantly palmitic and oleic, linoleic (n-6) or linolenic (n-3) acids) on developmental potential of oocytes were studied in lactating dairy(More)
The evidence that omega-3 (n-3) and -6 (n-6) polyunsaturated fatty acids (PUFAs) have differential effects on ovarian function, oocytes and embryo quality is inconsistent. We report on the effects of n-3 versus n-6 PUFA-enriched diets fed to 36 ewes over a 6-week period, prior to ovarian stimulation and follicular aspiration, on ovarian steroidogenic(More)
The value of using the amino acid and fatty acid composition of follicular fluid as predictors of embryo development was assessed in a bovine model of in-vitro maturation (IVM), IVF and blastocyst culture (IVC). A total of 445 cumulus-oocyte complexes (COC) aspirated from visually healthy follicles underwent IVM and IVF singly (n = 138) or in groups (n =(More)
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