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Effect of DHA and EPA supplementation in early gestation and its impact on growth and metabolism of the offspring

Research Scholar

Mario Francisco Oviedo Ojeda, agronomic and zootechnist engineer, Universidad Autónoma De San Luis Potosí (Mexico)
Alejandro E. Relling, faculty mentor


  • Hometown: San Luis Potosí, Mexico
  • Degrees received: Master of Science in agricultural studies, Universidad Autónoma De San Luis Potosí, San Luis Potosí, Mexico.

What is the issue or problem addresses in your research?

Fatty acids play a role on regulation of physiological pathways, such as signaling molecules, regulation of gene expression, control of enzymatic activities and energy metabolism. Therefore, fatty acids supplementation have the potential to change some of those pathways, and might impact on parameters of production in the livestock industry. The transfer of fatty acids to the fetus occurs through the placenta; and the fatty acid profile on the tissues of the fetus depends on that passage of fat.

What methodology did you use in your research?

The present study used sixty four sheep supplemented with diets with different sources of fatty acids (monounsaturated, MUFA; polyunsaturated, PUFA) assigned in two treatments during the first fifty days of gestation. Subsequently, seventy-nine lambs were assigned at weaning, distributed in two treatments through a 2x2 factorial arrangement to evaluate the effect of fetal programming. The daily dry matter intake, initial and final weight, average daily gain and gain (food were measured daily).

What are the purpose/rationale and implications of your research?

There is very little information regarding the supplementation with long-chain fatty acids during the first third of gestation in ruminates, that is why the purpose of the research is that the results obtained help us to understand how these bioactive molecules have the capacity to modify the productive performance, the metabolic state and that the mobilization behaves in a different way for each part of the body.