EFFECTS OF VITAMIN E SUPPLEMENTATION ON SERUM HORMONES AND GENE EXPRESSION OF ANTI-SEASON BREEDING XINGGUO GREY GEESE (ANSER CYGNOIDES)
AUTOR(ES)
Yin, L
FONTE
Braz. J. Poult. Sci.
DATA DE PUBLICAÇÃO
20/12/2019
RESUMO
ABSTRACT The objective of this study was to analyse the impact of dietary vitamin E supplementation on laying performance, serum reproductive hormones concentration and gene expression in ovary and follicles of anti-season breeding goose. A total of 210 anti-season breeding geese were divided into seven treatments with six replications. Each group was supplied with diets containing different vitamin E (DL-α-tocopherol acetate) contents (0, 10, 20, 40, 80, 160, 320mg/kg). We observed that the egg production and laying rate improved significantly at doses of 10 and 80 mg/kg, while the highest egg weight appeared in the 320 mg/kg group. Meantime, 80 mg/kg of vitamin E supplementation significantly improved the concentration of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) in serum (p<0.05). Dietary vitamin E supplementation significantly enhanced mRNA expression of FSHR, LHR and ESR1 at a dose of 80mg/kg, while PRLR increased at doses of 10 and 20mg/kg (p<0.05). It was found that the mRNA expression of Dicer increased at doses of 40 and 80 mg/kg of vitamin E supplementation in the ovary, SWF, LWF and SYF, respectively. Thence, Dietary vitamin E supplementation could improve egg laying performance, plasma reproductive hormones and the mRNA expression of reproductive hormone receptor genes in ovary, as well as the mRNA expression of Dicer in ovary, SWF, LWF and SYF. It was supposed that 80 mg/kg of vitamin E supplementation in dietary was appropriate to improve the fertility of anti-season breeding Xingguo grey goose.
Documentos Relacionados
- Molecular Cloning and Mrna Expression Analysis of Sichuan White Goose (Anser Cygnoides) Chrebp Gene
- Serosurvey of Toxoplasma gondii, Sarcocystis sp. and Neospora caninum in geese (Anser sp.) from urban parks and captivity
- Comparing the effects of vitamin E tocotrienol-rich fraction supplementation and α-tocopherol supplementation on gene expression in healthy older adults
- An outbreak of West Nile virus-associated disease in domestic geese (Anser anser domesticus) upon initial introduction to a geographic region, with evidence of bird to bird transmission
- Characterization of Tyzzeria parvula (Kotlan, 1933) Klimes, 1963 oocysts (Apicomplexa: Eimeriidae) of the greylag goose (Anser anser Linnaeus, 1758) in Brazil.