The aim of the present study was to characterize the dietary effects of n - 3 LC-PUFA and alpha-tocopheryl acetate (vE) on the quality, phospholipid fatty acid composition, alpha-tocopherol content (alpha-T) and in vitro susceptibility to lipid peroxidation in turkey semen. Fertility of fresh semen was also evaluated. Male turkeys were randomly divided and fed either a control diet or a fish oil and vE rich diet (FO diet) from 40 to 60 weeks of age. The FO diet increased the proportion of n - 3 fatty acids in spermatozoa and as a consequence the (n - 3)/(n - 6) ratio also increased. These changes did not affect the proportion of n - 9 PUFAs, particularly of C22:3n - 9, in semen. The sperm content of alpha-T was dependent by the dietary supplementation of the vitamin and the sperm content was more than doubled supplying 120 mg kg(-1) of feed to the males compared to the 60 mg kg(-1) of feed in the control diet. In agreement with the major content of alpha-T in spermatozoa collected from the FO group were significantly less susceptible to in vitro induced oxidation. The reproductive capacity of the male breeders was not affected by the diet; however the result is considered of some relevance for field conditions where even very small changes have economic interest being applied to large bird population.
Combined effect of DHA and alpha-tocopherol enrichment on sperm quality and fertility in the turkey / L. Zaniboni, R. Rizzi, S. Cerolini. - In: THERIOGENOLOGY. - ISSN 0093-691X. - 65:9(2006), pp. 1813-1827.
|Titolo:||Combined effect of DHA and alpha-tocopherol enrichment on sperm quality and fertility in the turkey|
ZANIBONI, LUISA (Corresponding)
RIZZI, RITA MARIA (Secondo)
CEROLINI, SILVIA (Ultimo)
|Parole Chiave:||turkey semen; diet; fatty acids; alpha-tocopherol; fertility|
|Settore Scientifico Disciplinare:||Settore AGR/20 - Zoocolture|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.theriogenology.2005.10.013|
|Appare nelle tipologie:||01 - Articolo su periodico|