Addition of phytic acid to BTS extender in the conservation of boar semen: in vivo evaluation
Keywords:
Ejaculated, Swine semen, Phytic acid, BTS, Farrowing rateAbstract
The maintenance of boar semen under refrigerated conditions has been highlighted as an effective technique for the diffusion of genetic material through artificial insemination programs. In this sense, the addition of several substances, such as antioxidants, to the diluente has been used in the conservation semen from various domestic species. Thus, this study aimed to investigate the action of phytic acid added to the semen extender, conserved under refrigeration by evaluating the fertility results obtained from inseminated swine females. Four boars (Agroceres), which were used for artificial insemination as semen donors, and seventy females were used to compose the lots during the seven weeks of the experiment. The insemination lots were formed with the semen diluted in BTS (35 females) and BTS added with phytic acid at 525μM/100mL (35 females). For results evaluation, the following aspects were considered: 1) fertility rate; 2) farrowing rate; 3) total number of piglets/delivery; 4) number of live birth piglets/delivery. It was observed that the fertility and farrowing rates, as well as the prolificacy of sows inseminated with BTS and BTS added with phytic acid did not differ statistically (p>0.05). The addition of phytic acid to the BTS diluent did not influence the reproductive results of swine. Therefore, further studies must be performed to evaluate the efficacy of different phytic acid concentrations on the fertility and prolificacy of sows.
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