Evaluation of the Nutritional Supplement VIUSID Vet Powder on the Productive Behaviour of Sows and Boars

The objective of this research was to evaluate the effect of administering VIUSID vet powder on the productive behaviour of sows and the quality of semen of boars. Two experiments were conducted on farms in the province of Sancti Spiritus, in the central region of Cuba. One was with sows, starting 21 days before parturition until weaning, and another was with boars in directed mounting. Each sow received 10 grams of VIUSID vet powder everyday, mixed with food, from 21 days before the probable date of farrowing and until weaning （33-day lactation period）. In the boars, the treatment consisted of administering 10 grams of VIUSID vet powder with feed, once a day for 6 weeks （week 1 to 6）; from week 7 onwards, the supplement was suspended. Results showed that, supplying VIUSID vet powder significantly improved the principal post-partum productivity indicators and significantly reduced diarrhoea and administration to boars in production for 6 weeks, which has improved spermatic motility and does not affect the other variables representative of the quality of the semen.

异甘草素的药效学研究进展

异甘草素是甘草的重要成分,它的生物活性呈现多样性,尤其是它的抗癌活性和抗炎作用被广泛报道。通过参阅近3年来的文献,作者概述了异甘草素药效学的研究进展,为进一步利用和开发异甘草素提供参考。为扩大基础研究的成果,作者也建议对异甘草素尽快开展安全性评价,弥补当前毒理学报道甚少的状况。此外,对异甘草素实施结构修饰,有助于发现更有价值的活性分子。