Effects of micronized bamboo powder on growth performance, serum biochemical indexes, cecal chyme microflora and metabolism of broilers aged 1–22 days

Abstract

Adding insoluble fiber to diet of broilers has been reported to improve intestinal health and promote growth performance. Bamboo powder is a cheap raw material with rich insoluble fiber. This study aims to explore the effects of feeding micronized bamboo powder (MBP) on growth performance, serum biochemical indexes, intestinal microflora, and metabolism of broilers. A total of 1440 1-day-old slow-growing Ephedra chickens were randomly divided into three groups considering gender and body weight: (1) Group D: feeding with basal diet without antibiotics; (2) Group E: feeding with basal diet supplemented with 5% rice bran (RB); (3) Group F: feeding with basal diet supplemented with 1% MBP. Each group involved 8 replicates feeding for 22 days, with 60 chickens per replicate. Various indexes were detected. For the growth performance, the weight gain and feed consumption ratio (G: F) of Group F supplemented with MBP is 0.57 ± 0.04, which is significantly higher than that of E group supplemented with RB (0.52 ± 0.01, P < 0.05). For the serum biochemical indexes, the glutathione peroxidase activity in Group F is significantly higher than that of Group D, while the malondialdehyde content is significantly lower than that of Group D and Group E (P < 0.05 for all). The fresh cecal chyme is taken for determination. In Group F, the α diversity index Faith_pd is significantly lower in Group F than that of Group D. The microorganism species in cecal chyme of Group F and Group E are also different. The metabolic pathways of Group F, mainly in fatty acid metabolism, amino acid metabolism and intestinal immune IgA production, were different from those of Group D and Group E. Adding 1% MBP to broiler diet can enhance the anti-oxidant capacity, improve chyme microflora, regulate the metabolism pathways responsible for intestinal fatty acids, amino acids, and immunity.

Micronized Bamboo Powder Affects the Growth Performance, Intestinal Development, Cecal Chyme Microflora and Metabolic Pathway of Broilers aged 24-45 days

“…Cecal chyme micro ora analysis: The cecal chyme micro ora analysis was performed according to our previous report (Dai et al, 2022), after the genome DNA of cecal chyme micro ora was extracted and ampli ed with PCR, the ampli cation products is puri ed and sequenced with Illumina MiSeq6000 platform.…”

“…The chromatography was performed with Thermo Ultimate 3000 and the ACQUITY UPLC® HSS T3 1.8 µm (2.1×150 mm) column, and mass spectrometry (MS) analysis was performed with Thermo Q Exactive HF-X, electrospray ion source (ESI), positive and negative ion ionization modes. The detection conditions were set according to our previous report (Dai et al, 2022).…”

“…In addition, in vitro digestibility of dry matter and crude protein (Bao Z et al, 2016), the apparent ileal digestibility of total ber, total energy and insoluble ber can also be signi cantly increased (Zhao J B et al, 2019). Our previous study revealed that adding 1% of micronized bamboo powder (MBP) to replace equivalent corn can improve the growth performance of young broilers (Dai et al, 2022) and weaned piglets (Dai et al, 2021). It is expected to be used as a functional dietary ber raw material to reduce feed costs and improve breeding e ciency.…”

“…Our previous study found that adding MBP to the diet of young broilers could increase the proportion of Firmicutes in cecal chyme, with a signi cantly higher abundance of Collinsella. Some differential metabolic pathways were investigated, mainly on amino acids and fatty acids (Dai et al, 2022). MBP is considered a promising and high-quality raw material for obtaining pro-biotic insoluble ber.…”

Micronized Bamboo Powder Affects the Growth Performance, Intestinal Development, Cecal Chyme Microflora and Metabolic Pathway of Broilers aged 24-45 days

“…The preparation of MBP The bamboo poles of Phyllostachys pubescens (from Sichuan Province, China) after growing for 5 ~ 6 years were collected and processed into MBP as a previous reported method (Dai et al 2022). The content of moisture, crude protein (CP), and ash were tested according to AOAC method (AOAC 2007), which were 7.83%, 1.51%, and 1.01%, respectively.…”