Effects of feeding eubiotics as antibiotic substitutes on growth performance, intestinal histomorphology and microbiology of broilers

Italian Journal of Animal Science, Journal Year: 2023, Volume and Issue: 23(1), P. 65 - 75

Published: Dec. 14, 2023

Language: Английский

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Evaluation of Aspergillus meal prebiotic in productive parameters, bone mineralization and intestinal integrity in broiler chickens

German Journal of Veterinary Research, Journal Year: 2023, Volume and Issue: 3(3), P. 27 - 33

Published: Oct. 1, 2023

This study investigates the effects of Aspergillus meal prebiotic on a spectrum parameters, including productive performance, bone mineralization, and intestinal integrity, in broiler chickens. Day-of-hatch Cobb 500 by-product male chicks (320 total) were randomly assigned to two experimental groups (G1 G2) floor pens (150×300 cm), each pen containing separate feeders watering systems (8 replicates per treatment, 20 birds/pen). Chickens kept G1 (control) fed basal diet, while those G2 (treated) diet supplemented with 0.2% PRI-A-FERM. Performance body weight (BW), gain (BWG), feed intake (FI), conversion ratio (FCR), evaluated weekly from 7th day end trial at 42 d. Fluorescein isothiocyanate-dextran (FITC-d) was administered via oral gavage 3 chickens/replicate (n = 24), blood collected 21d 42d determine serum concentration FITC-d as biomarker evaluate permeability peptide YY an indirect short chain fatty acids. that received \textit{Aspergillus} showed significant increase BW, BWG, FI days 14, 21, 28, 35, (P<0.05) reduction FCR evaluation compared control. Moreover, chickens concentrations both evaluation, well YY. Additionally, treated animals significantly increased strength, total ash, calcium phosphorous content times In summary, results this suggest supplementation can positively influence integrity The observed improvements underscore importance gut health overall poultry performance. findings contribute growing knowledge benefits prebiotics (0.2%, PRI-A-FERM) animal nutrition highlight potential for their practical application enhancing production systems. Further research is warranted elucidate underlying mechanisms optimize utilization improved productivity

Language: Английский

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The Effect of Dietary Supplementation of a Bacillus-Based Direct Fed-Microbial on Pekin Duck Subjected to Heat Stress Challenge

Livestock Science, Journal Year: 2024, Volume and Issue: unknown, P. 105579 - 105579

Published: Oct. 1, 2024

Language: Английский

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Precision biotic as an effective replacement of hydrolyzed yeast and butyrate in antibiotic free diets of broiler chickens raised under field conditions

Poultry Science, Journal Year: 2024, Volume and Issue: 104(2), P. 104664 - 104664

Published: Dec. 11, 2024

A total of 1,436,000 Ross 380 AP broiler chicks were included in the experiment, which was conducted two cycles with 20 houses per cycle and 35,900 birds house. The objective to evaluate, under field conditions, impact a precision biotic (PB) on growth performance cecal microbiome chickens, comparison enzymatically hydrolyzed yeast (EHY) butyrate (BT) an antibiotic-free diet. Each consisted six (6) PB supplementation, 14 regular dietary program used by integration. Body weight (BW), feed intake (FI), conversion ratio (FCR) assessed at processing age, ranging from 39 45 d. Birds had ad libitum access water feed. On day 29, content 7 house (42 treatment) collected for analysis applying shotgun metagenomics approach. data analyzed ANCOVA, considered as experimental unit (n = 20; P < 0.05), bird 84; 0.05). Both treatment groups performed below strain target terms BW, but better FCR. There no significant differences (P > 0.05) between both performance, indicating that effectively replaced EHY BT without compromising growth. However, functional changes observed fed PB, enrichment pathways related carbon nitrogen metabolism. These associated increased metabolism index can lead higher endogenous short-chain fatty acids (SCFAs) production. Overall, potentially increasing SCFA production intestinal microbiome, supported chickens similar achieved BT.

Language: Английский

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Non-antibiotic growth promoters in poultry nutrition

Annals of Animal Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 24, 2024

Abstract Poultry meat and eggs are considered as major sources of food for rapidly increasing human population across the globe. During rearing poultry, different antibiotics were included in poultry diets sub therapeutic doses to attain improvements growth performance. Recently, use production has been one reasons behind emergence antibiotic resistance pathogens. The pressing issue led complete or partial bans on promoters many parts world. Moreover, there have increased concerns among consumers about residues products. These administrative an incidence bacterial disease outbreaks thus compromising performance, welfare, economic outcomes producers. This ultimately attracted attention researchers find alternative strategies that could replace bring production, health, safety benefits systems. non-antibiotic mainly include probiotics, prebiotics, synbiotics, phytogenic substances, organic acids, antimicrobial peptides, enzymes, bacteriophages, egg yolk antibodies. Inclusion these solutions demonstrates promising results terms performance birds’ health. demonstrated through nutrient absorption, proliferation beneficial bacteria, reduction pathogenic species, metabolites serve energy intestinal epithelial cells host, positive modulation immune responses. Apart from reducing colonization species also exhibited satisfactory efficacy foodborne pathogens like Salmonella Campylobacter jejuni which cause illness population. In this paper, we reviewed studies evaluated effects types poultry. A description mechanism action, advantages, disadvantages gut health parameters discussed paper.

Language: Английский

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