Boar sperm quality after supplementation of diets with omega-3 polyunsaturated fatty acids extracted from microalgae.

Autor: Andriola YT; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Moreira F; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Anastácio E; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Camelo FA Jr; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Silva AC; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Varela AS Jr; Instituto de Ciências Biológicas, Universidade Federal de Rio Grande, Rio Grande-RS, Brazil., Gheller SMM; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Goularte KL; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Corcini CD; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil., Lucia T Jr; ReproPel, Universidade Federal de Pelotas, Pelotas-RS, Brazil.; Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas-RS, Brazil.
Jazyk: angličtina
Zdroj: Andrologia [Andrologia] 2018 Feb; Vol. 50 (1). Date of Electronic Publication: 2017 Jul 21.
DOI: 10.1111/and.12825
Abstrakt: This study evaluated effects of diet supplementation with omega-3 polyunsaturated fatty acids (PUFA) from microalgae on boar sperm quality. Two groups of boars (n = 3 each) were fed during 75 days either a commercial diet (control), or the same diet supplemented with omega-3 PUFA from the heterotrophic microalgae Schizochytrium sp. (120 g/kg). Sixteen ejaculates were collected per boar. Some sperm kinetics parameters were inferior for supplemented than for control boars (p < .05): distance average path; distance in both curved and straight line; velocity average path, velocity in both curved and straight line; and amplitude of lateral head displacement. Spermatozoa from supplemented boars presented lower mitochondrial functionality, but greater membrane fluidity compared to the control group (p < .01). Membrane and acrosome integrity, production of reactive oxygen species and lipid peroxidation did not differ (p > .05). Serum cholesterol levels were greater (p < .05) for supplemented than for control boars at the 30th and 60th d of supplementation, but levels of triglycerides and IGF-1 did not differ (p > .05). Compared to the control, spermatozoa of supplemented boars were slower, travelled shorter distances and presented impaired energy metabolism, but their greater membrane fluidity may potentially favour their cryopreservation.
(© 2017 Blackwell Verlag GmbH.)
Databáze: MEDLINE
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