SWINE NUTRITION AND FEED

Effects of Feeding Bamboo Powder on Growth Performance, Serum Biochemical Indexes and Fecal Microorganism of Weaned Piglets

  • DAI Fawen ,
  • LIN Tao ,
  • SU Baoyuan ,
  • YAO Hongming ,
  • GU Dianchao ,
  • YANG Yaojun
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  • 1. Leshan Normal University, Leshan 641000, China;
    2. Guang'an Feed Industry Management Station, Guang'an 638000, China;
    3. Beijing Vicagroup Biotechnology Co., Ltd., Beijing 100085, China;
    4. Hunan Debang Biotechnology Co., Ltd., Hengyang 410205, China

Received date: 2021-05-06

  Online published: 2021-12-16

Abstract

The experiment was conducted to evaluate the effects of different feeding bamboo powder on growth performance, serum biochemical indexes and fecal microorganism of weaned piglets. Bionic digestion test was carried out to determine in vitro dry matter digestibility (IVDMD) of general-micronized bamboo powder (GB) and super-micronized bamboo powder (SB) and evaluate the effects of GB and SB supplemental levels on IVDMD of weaned piglets. Thirty 28-day-old healthy Duroc×Landrace×Yorkshire weaned piglets with similar body weight of (7.88±0.58) kg were randomly divided into 3 groups with 10 replicates per group and 1 piglet per replicate. Piglets in control group were fed a basal diet, and the others in experimental Ⅰ and Ⅱ groups were fed the basal diets supplemented with 1% GB and SB, respectively. The pre-experiment lasted for 3 days, and the experiment lasted for 13 days. The results showed as follows:1) super-micronized processing changed distribution particle size of general-micronized feeding bamboo powder, causing that the IVDMD of SB was significantly higher than that of GB (P<0.05). Besides, the supplemental level of feeding bamboo powder had significant effect on IVDMD of weaned piglets' diet (P<0.05), supplemented with 2% GB or SB significantly decreased IVDMD of weaned piglets' diet (P<0.05). 2) Compared with control group, average daily gain of weaned piglets in SB group was significantly increased and significantly decreased the ratio of feed to gain (P<0.05). The ratio of feed to gain in SB group was significantly lower than that in GB group (P<0.05), while the contents of serum triglyceride and glucose in SB group were significantly higher than those in GB group (P<0.05). 3) Compared with control group, the number of Escherichia coli in feces of weaned piglets in SB and GB groups was significantly decreased (P<0.05), the number of Lactobacillus and total aerobic bacteria in feces in GB group was significantly decreased (P<0.05), and the ratio of Lactobacillus to Escherichia coli in feces in SB group was significantly increased (P<0.05). 4) Compared with control group, the relative abundance of Methanobrevibacter in feces of weaned piglets in SB group was increased while the relative abundance of Clostridium was decreased; and the relative abundance of Olsenella in GB group was increased while the relative abundance of Lactobacillus was decreased. In conclusion, the IVDMD of weaned piglets' diet is reduced with the increasing of supplemental levels of feeding bamboo powder, and supplemented with 1% SB has positive effects on improving fecal bacterial composition, reducing the number of Escherichia coli and improving growth performance of weaned piglets.

Cite this article

DAI Fawen , LIN Tao , SU Baoyuan , YAO Hongming , GU Dianchao , YANG Yaojun . Effects of Feeding Bamboo Powder on Growth Performance, Serum Biochemical Indexes and Fecal Microorganism of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2021 , 33(12) : 6709 -6720 . DOI: 10.3969/j.issn.1006-267x.2021.12.013

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