130 Effect of dietary omega-3 supplementation on equine endometrial and embryonic gene expression

Jacobs, R.D.; Ealy, Alan D.; Pennington, Parker M.; Pukazhenthi, Budhan S.; Warren, L.K.; Wagner, Anne; Johnson, Aime K.; Hess, Tanja; Splan, Rebecca K.

doi:10.1016/j.jevs.2015.03.142

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“…If nutrition is inadequate, often times, poor follicular development is found in mares which, as a consequence, do not ovulate normally or have deficient corpora lutea, leading, in turn, to early embryonic losses or underdeveloped fetuses (Shepherd et al 2012). Studies have shown that diets rich in starch may result in decreased in the sensibility to insulin (insulin resistance), resulting in disruption of the hypothalmic-hypofhyseal ovariam axis compromising mare fertility (Jacobs et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Fatty acid profiles of the plasma and follicular fluid mares fed a combination of linseed and salmon oil

Viafara

Portilho

Maculan

et al. 2021

An. Acad. Bras. Ciênc.

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This study evaluated the presence of polyunsaturated fatty acids in circulating blood and in the ovarian follicular fluid of mares, after supplementation of the diet with linseed oil. Six Mangalarga Marchador mares, weighing 397.00±31.89 kg, were kept on native pasture, and assigned to the current study. In a switch over design, mares were randomly allocated to receive 150 ml of vegetable oil daily, containing polyunsaturated fatty acids n3 (62.23 g ALA, 20.34 g LA, 2.27 g EPA, 2.32 g DHA), (n=3) or no supplementation (n=3) in two replicates. Blood and follicular fluid samples were taken on the first day (D0) and every 30 days until the end of the supplementation period (D60). After 60 days of supplementation, mares were switched across the treatments. Plasma concentrations of linolenic acid in total fatty acids were higher (P=0.006) in the supplemented compared to the control group (1.89±0.13 vs. 1.49±0.13%). There were positive correlations between plasma linoleic acid and follicular fluid arachidonic acid (P=0.0106; r 2 =0.13) and between plasma alpha linolenic acid and follicular fluid EPA (P=0.0004; r 2 =0.2544). Data indicated a low to moderate relationship between the dietary linseed-based oil supplementation studied and circulating and follicular fluid polyunsaturated fatty acids contents in mares.

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Section: Introductionmentioning

confidence: 99%