Italian Journal of Animal Science (Dec 2022)
Impact of synergistic blend of organic acids on the performance of late gestating sows and their offspring
Abstract
This study aims to investigate the effects of in-feed additive synergistic blend of short and medium-chain organic acids (SGG) in sows during late gestation and lactation as well as litter performance. On day 107 of gestation, a total of 150 multiparous (Landrace × Yorkshire) sows were blocked according to parity (2.6) and allocated to one of three dietary treatments: CON – basal diet, SGG-Low – CON + 0.1% SGG and SGG-High – CON + 0.3% SGG. Sows supplemented with SGG-High consumed more lactation feed (p = .04) than sows fed the CON diet. The body weight (BW) and back fat (BF) loss during the lactation period were lower (p ≤ .05) in sows fed SGG supplements. Additionally, sows fed with different levels of SGG-supplement reduced (p = .04) the number of mummified and birth coefficient of variation (p = .03) and improved (p ≤ .05) the survivability of piglets. Also, piglets born to SGG group sows and fed a creep diet from days 5 to 21 of age, showed a tendency to increase (p = .07) BW on day 7, and significant improvements on days 14 (p = .02) and 21 (p < .001), and average daily gain (p < .001) during the overall experimental period. Furthermore, the SGG supplement significantly reduced (p ≤ .05) the number of Clostridium perfringens in faeces of sows on day 7 of lactation. Thus, we infer that the application of 0.1–0.3% of SGG supplement in sow diet and subsequently feeding their offsprings with creep diet would serve as the best option for optimum sow productivity and to enhance pre-weaning growth rate.HIGHLIGHTS The breeding efficiency of sow and the growth rate of piglets are very important for successful pig production. Sows fed with a synergistic blend of short and medium-chain organic acids (SGG) during late gestation and lactation improved the survivability of piglets. Piglets born to sows supplemented with different levels of SSG gained more weight and had a higher litter weight during weaning.
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