Evaluation of Red Yeast Rice Residue as an Alternative Feed Ingredient in Growing-Finishing Pig Diets

Evaluation of Red Yeast Rice Residue as an Alternative Feed Ingredient in Growing-Finishing Pig Diets

This study aimed to evaluate the effects of graded levels of red yeast rice residue (RYRR) on the growth performance, nutrient digestibility, and fecal microbiota of growing-finishing pigs. A total of 144 pigs were randomly allocated into four dietary treatment groups, over a 75-day experimental per...

Full description

Saved in:
Bibliographic Details
Main Authors: Zhengqun Liu, Longbo Zhu, Ning Li, Zi Zheng, Chunyan Xie, Shiyue Liang, Jun Yan, Shuqin Mu
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Agriculture
Subjects:
red yeast rice residue
growing-finishing pigs
nutrient digestibility
fecal microbiota
growth performance
feed evaluation
Online Access:https://www.mdpi.com/2077-0472/15/5/495
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study aimed to evaluate the effects of graded levels of red yeast rice residue (RYRR) on the growth performance, nutrient digestibility, and fecal microbiota of growing-finishing pigs. A total of 144 pigs were randomly allocated into four dietary treatment groups, over a 75-day experimental period. The study comprised a control group and three dietary supplementation groups receiving RYRR. The control (CON) group was fed a two-phase diet tailored to the pigs’ body weight, while the RYRR groups were provided with the CON diet, where corn, soybean meal, puffed soybeans, and wheat shorts were substituted with 5%, 10%, and 20% of RYRR. Supplementation with 10% RYRR enhanced the apparent digestibility of gross energy, dry matter, and crude fiber, while reducing the feed-to-gain ratio and serum triglyceride levels (<i>p</i> < 0.05). Microbiological analyses revealed that short-chain fatty acid-producing bacteria (<i>Anaerotignum</i> and <i>Lachnospiraceae_UCG-009</i>) were biomarkers in pigs fed the RYRR supplementation diets (<i>p</i> < 0.05). These results demonstrated that RYRR supplementation of the diet exerted beneficial effects on promoting nutrient digestibility as well as modulating the fecal microbiota of pigs, and the recommended proportion of RYRR added to the growing-finishing pigs’ diet is 10%.
ISSN:2077-0472

Similar Items