Combined effect of DHA and alpha-tocopherol enrichment on sperm quality and fertility in the turkey
Articolo
Data di Pubblicazione:
2006
Citazione:
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.
Abstract:
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.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
turkey semen; diet; fatty acids; alpha-tocopherol; fertility
Elenco autori:
L. Zaniboni, R. Rizzi, S. Cerolini
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