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Effects of bacillus amyloliquefaciens lfb112 on growth performance, carcass traits, immune, and serum biochemical response in broiler chickens

Ahmat, M ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.3390/antibiotics10111427
  3. Publisher: MDPI , 2021
  4. Abstract:
  5. This study aimed to investigate the effects of Bacillus amyloliquefaciens LFB112 on the growth performance, carcass traits, immune response, and serum biochemical parameters of broiler chickens. A total of 396 1 day old, mixed-sex commercial Ross 308 broilers with similar body weights were allotted into six treatment groups. The assigned groups were the CON group (basal diet with no supplement), AB (antibiotics) group (basal diet + 150 mg of aureomycin/kg), C+M group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 powder with vegetative cells + metabolites), C group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 vegetative cell powder with removed metabolites), M group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 metabolite powder with removed vegetative cells), and CICC group (basal diet + 5 × 108 CFU/kg Bacillus subtilis CICC 20179). Results indicated that chickens in the C+M, C, and M groups had higher body weight (BW) and average daily gain (ADG) (p < 0.05) and lower feed conversion ratio (FCR) (p = 0.02) compared to the CON group. The C+M group showed the lowest abdominal fat rate compared to those in the CON, AB, and CICC groups (p < 0.05). Compared to the CON group, serum IgA and IgG levels in the C+M, C, and M groups significantly increased while declining in the AB group (p < 0.05). B. amyloliquefaciens LFB112 supplementation significantly reduced the serum triglyceride, cholesterol, urea, and creatinine levels, while increasing the serum glucose and total protein (p < 0.05). In conclusion, B. amyloliquefaciens LFB112 significantly improved the growth performance, carcass traits, immunity, and blood chemical indices of broiler chickens and may be used as an efficient broiler feed supplement. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/)
  6. Keywords:
  7. Alpha tocopherol ; Antibiotic agent ; Chlortetracycline ; Immunoglobulin A ; Malonaldehyde ; Pyridoxine ; Riboflavin ; Selenium ; Superoxide dismutase ; Thiamine ; Triacylglycerol ; Amino acid composition ; Aquaculture ; Average daily gain ; Bacillus amyloliquefaciens ; bacterial growth ; Biomass production ; Body weight ; Body weight gain ; Chicken ; Colony forming unit ; Diet supplementation ; Enzyme linked immunosorbent assay ; Fermentation ; Food intake ; Gene expression ; Glucose blood level ; Lymphocyte proliferation ; Mortality ; Muscle mass ; Nonhuman ; Sequence analysis
  8. Source: Antibiotics ; Volume 10, Issue 11 , 2021 ; 20796382 (ISSN)
  9. URL: https://pubmed.ncbi.nlm.nih.gov/34827365