Abstract
This study was conducted to investigate the effect of fermented Radix puerariae residue (FRPR) on reproductive performance, apparent total tract digestibility (ATTD) of nutrients, and fecal short-chain fatty acid (SCFA) contents of sows. A total of 36 landrace × large white multiparous sows were randomly arranged into three treatments, representing supplementation with 0, 2, and 4% FRPR to a corn-soybean meal and wheat bran-based diet during the whole gestation period. The results showed that dietary FRPR had no effects on litter size and the number of total alive piglets (P > 0.05), and that the number of weaned piglets and weaning weight of litter were increased in sows with 4% FRPR treatment compared with control treatment (P < 0.05). Dietary 4% FRPR significantly decreased constipation rate, improved the ATTD of dry matter and organics, and fecal contents of acetate, propionate, and total SCFAs (P < 0.05). In the offspring piglets, serum concentrations of total protein, alkaline phosphatase, IgG, IL-10, and TGF-β were increased, but blood urea nitrogen content was decreased with 4% FRPR treatment (P < 0.05). There were no significant differences in all determined indexes except for fecal acetic acid and total SCFAs between control and 2% FRPR treatment (P > 0.05). These findings indicated that FRPR used in the diets of sows showed positive effects on fecal characteristics, utilization of nutrients, and reproductive performance. Maternal supplementation with 4% FRPR is recommended for improving immune responses, weaning litter size, and litter weight of offspring piglets, which provide useful information for the application of residues of R. puerariae.
Highlights
Pueraria lobata Ohwi (Latin name Radix puerariae), a Chinese traditional medicine, has always been used to treat diabetic nephropathy, cardiovascular diseases, Parkinson’s disease, Alzheimer’s disease, and acute cerebral ischemic stroke [1]
This study aims to determine the effects of dietary Fermented Radix puerariae residue (FRPR) on reproductive performance, apparent total tract digestibility (ATTD) of nutrients, and short-chain fatty acids (SCFAs) of sows
The number of weaning piglets and litter weight at the age of 21 days were increased in 4% FRPR treatment compared with control treatment (P < 0.05)
Summary
Pueraria lobata Ohwi (Latin name Radix puerariae), a Chinese traditional medicine, has always been used to treat diabetic nephropathy, cardiovascular diseases, Parkinson’s disease, Alzheimer’s disease, and acute cerebral ischemic stroke [1]. Its roots contain many kinds of isoflavones, triterpenes, saponins, and so on. The dregs of R. puerariae have been determined to contain 4.79% crude protein, 58.08% neutral detergent fiber, 22.96% acid detergent fiber, and 1.18% flavonoids. More than 18 tons/acre of R. puerariae are produced, but millions of tons of residues are discarded, which is a huge waste and can lead to serious. Fermented Radix puerariae Fiber in Sows pollution. Fermentation is an important way of boosting the comprehensive utilization of the residue of R. puerariae and other feeds [2]. Fermented Radix puerariae residue (FRPR) may be an unconventional feedstuff for livestock, especially as a fiber source in sows, due to its possible effects on gut health and welfare
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