Authors : Lingfeng Xue, Pengfei Li, Rongfei Zhang, Xiangshu Piao, Rui Han and Ding Wang
Abstract: Fermented potato pulp is a by-product obtained from the potato-starch industry. There could be great economical and environmental advantages if it could be exploited for use as a new feed resource. This study was conducted to evaluate the dietary effect of adding 5% fermented potato pulp to diets fed to lactating sows on sow and litter performance, blood metabolites and hormones. On day 110 of gestation, 80 mixed parity sows (256.0±4.3 kg BW and 3.2±0.2 parity) were moved into a farrowing room and allotted to one of two corn-soybean meal based diets supplemented with either 0 or 5% fermented potato pulp in a completely random design experiment. Each treatment had 40 replicates and the sows were fed the dietary treatments until weaning following 28 days of lactation. Sow lactation weight loss tended to decrease (p = 0.09) and feed intake tended to increase (p = 0.06) when sows were fed fermented potato pulp. The weaning to estrus interval was shorter (p = 0.05) and litter weight gain was also higher (p = 0.03) for sows fed fermented potato pulp. Dietary treatments did not affect plasma glucose, insulin, non-esterified fatty acids, insulin-like growth factor I and follicle-stimulating hormone. Sows fed fermented potato pulp had higher (p = 0.02) plasma urea nitrogen and luteinizing hormone (p = 0.01) than sows fed the control diet. Feeding potato pulp tended to decrease (p = 0.06) creatinine and increase (p = 0.07) estradiol concentrations in sows plasma. These results demonstrate that feeding lactating sows diets containing 5% fermented potato pulp had a positive effect on sow and litter performance.
Lingfeng Xue, Pengfei Li, Rongfei Zhang, Xiangshu Piao, Rui Han and Ding Wang, 2011. Use of Fermented Potato Pulp in Diets Fed to Lactating Sows. Journal of Animal and Veterinary Advances, 10: 2032-2037.