Effect of medicinal plants and organic acid on growth performance of Ross broilers

2009 ◽  
Vol 2009 ◽  
pp. 205-205
Author(s):  
H Ziaie ◽  
M A Karimi Torshizi ◽  
M Bashtani ◽  
H Farhangfar ◽  
P Rowlinson ◽  
...  
Keyword(s):  
Organic Acid ◽  
Gut Health ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Antibiotic Resistant ◽  
Intensive Farming ◽  
Antibiotic Growth Promoters ◽  
Prophylactic Use ◽  
Alternative Antibiotic

The prophylactic use of antibiotic (as growth promoters) in animal feeds has made intensive farming possible and improved feed conversion. In the presence of low levels of an antibiotic, resistant cells survive and grow which produces an antibiotic-resistant population. Consequently, the use of antibiotic for broilers has been limited. Therefore, a number of studies on alternative products that can aid promotion of growth, improved feed utilization, and maintenance of gut health have taken placed (Hernandez et al, 2004). Herbs and organic acid have received an increased attention as an alternative to antibiotics (Craig, 1999; Ricke, 2003). The main aim of the present research was to evaluate the efficiency of alternative antibiotic growth promoters on Ross broiler performance.

scholarly journals Pretreatment with probiotics ameliorate gut health and necrotic enteritis in broiler chickens, a substitute to antibiotics

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Danish Sharafat Rajput ◽  
Dong Zeng ◽  
Abdul Khalique ◽  
Samia Sharafat Rajput ◽  
Hesong Wang ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Production Systems ◽  
Economic Losses ◽  
Necrotic Enteritis ◽  
Poultry Production ◽  
Gut Health ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Antibiotic Growth Promoters ◽  
Microbial Strains

AbstractNecrotic enteritis (NE) is being considered as one of the most important intestinal diseases in the recent poultry production systems, which causes huge economic losses globally. NE is caused by Clostridium perfringens, a pathogenic bacterium, and normal resident of the intestinal microflora of healthy broiler chickens. Gastrointestinal tract (GIT) of broiler chicken is considered as the most integral part of pathogen’s entrance, their production and disease prevention. Interaction between C. perfringens and other pathogens such as Escherichia coli and Salmonella present in the small intestine may contribute to the development of NE in broiler chickens. The antibiotic therapy was used to treat the NE; however European Union has imposed a strict ban due to the negative implications of drug resistance. Moreover, antibiotic growth promoters cause adverse effects on human health as results of withdrawal of antibiotic residues in the chicken meat. After restriction on use of antibiotics, numerous studies have been carried out to investigate the alternatives to antibiotics for controlling NE. Thus, possible alternatives to prevent NE are bio-therapeutic agents (Probiotics), prebiotics, organic acids and essential oils which help in nutrients digestion, immunity enhancement and overall broiler performance. Recently, probiotics are extensively used alternatives to antibiotics for improving host health status and making them efficient in production. The aim of review is to describe a replacement to antibiotics by using different microbial strains as probiotics such as bacteria and yeasts etc. having bacteriostatic properties which inhibit growth of pathogens and neutralize the toxins by different modes of action.

scholarly journals The Effect of α-Monolaurin and Butyrate Supplementation on Broiler Performance and Gut Health in the Absence and Presence of the Antibiotic Growth Promoter Zinc Bacitracin

Antibiotics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 651
Author(s):  
Bakang R. Letlole ◽  
Ellen P. C. W. Damen ◽  
Christine Jansen van Rensburg
Keyword(s):  
Bacterial Resistance ◽  
Feed Additives ◽  
Growth Promoter ◽  
Gut Health ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Positive Effects ◽  
Zinc Bacitracin ◽  
The Impact

The use of antibiotic growth promoters (AGP) is common practice to improve broiler production and performance. The use of AGP is under discussion as it can induce bacterial resistance. The purpose of this study was to determine the impact of removing AGP from broiler feed and study the effect of feed additives. For those countries where in-feed AGP are still permitted, the effect of the products in the presence of AGP was evaluated. Half the number of male broilers received a diet free of AGP, whereas the other half received a diet supplemented with zinc bacitracin at 0.5 g/kg. Both diets were either without additional additives or combined with a coated sodium butyrate, α-monolaurin or a combination of these additives. Raised under optimal conditions, the incorporation of AGP had no effect on broiler performance, but negatively affected villi height and villi height to crypt depth (VH:CD) ratio in the duodenum. In the absence of AGP, butyric acid and α-monolaurin had a positive effect on villi height. In the presence of AGP, α-monolaurin resulted in the lowest feed conversion ratio and improved VH:CD ratio in the duodenum, jejunum and ileum. Both feed additives had minimal effect on performance parameters but showed small positive effects on gut health in the absence of AGP and could play a role in the strategy to replace AGP.

scholarly journals Potency of probiotics Bifidobacterium spp. and Lactobacillus casei to improve growth performance and business analysis in organic laying hens

2019 ◽  
Vol 12 (6) ◽  
pp. 860-867 ◽  
Author(s):  
Widya Paramita Lokapirnasari ◽  
Teguh Bagus Pribadi ◽  
Anam Al Arif ◽  
Soeharsono Soeharsono ◽  
Sri Hidanah ◽  
...  
Keyword(s):  
Growth Performance ◽  
Feed Efficiency ◽  
Lactobacillus Casei ◽  
Laying Hens ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Egg Weight ◽  
Business Analysis ◽  
Antibiotic Growth Promoters ◽  
Alternative Antibiotic

Aim: This study aimed to determine the use of probiotics Bifidobacterium spp. and Lactobacillus casei as alternative antibiotic growth promoters (AGPs) to improve growth performance and business analysis. Materials and Methods: This study used a completely randomized factorial design. The first factor was the time of administration (1, 2, 3, and 4 weeks) and the second was the use of probiotics (control without probiotics; 0.1% AGP and 0.5% Bifidobacterium spp. + 0.25% L. casei). One hundred and eighty laying hens (Lohmann strain), of 30 weeks old, were divided into 12 treatment groups, composed of five replicates, each consisting of three laying hens. Results: The results showed that using 0.5% Bifidobacterium spp. + 0.25% L. casei in weeks 1 and 2 showed the lowest feed intake (FI) (112.11-112.19 g/day), the highest egg weight (60.28 g) in the 1st week, the lowest feed conversion ratio (FCR) (2.21-2.23), and highest feed efficiency (44.75-45.25%) for 3-4 weeks, and the highest hen-day production (86.66-86.90%) for 3-4 weeks and the most profitable business analysis (IDR. 30,353). Conclusion: Based on the results, it can be concluded that the addition of 0.5% Bifidobacterium spp. + 25% L. casei probiotics can be used as a substitute for AGP; it can reduce the FI and FCR, increasing egg weight, feed efficiency, and hen-day production, as well as illustrating the results of the most profitable business analysis.

scholarly journals Comparative Efficacy of an Organic Acid Blend and Bacitracin Methylene Disalicylate as Growth Promoters in Broiler Chickens: Effects on Performance, Gut Histology, and Small Intestinal Milieu

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Saikat Samanta ◽  
Sudipto Haldar ◽  
Tapan Kumar Ghosh
Keyword(s):  
Small Intestine ◽  
Organic Acids ◽  
Organic Acid ◽  
Broiler Chickens ◽  
Live Weight ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Antibiotic Growth Promoters ◽  
Dietary Treatments

This study evaluated the efficacy of organic acids as a growth promoter for broiler chickens relative to antibiotic growth promoters (AGPs). Broiler chickens were supplemented with graded doses of an organic acid blend (OAB, 1 g and 2 g/kg diet) and bacitracin methylene disalicylate (BMD, 0.5 g and 1 g/kg diet) for 35 days. Supplementation of OAB improved () feed conversion ratio (FCR) and increased protein accretion (). Dietary acidification caused pH of the gizzard to decline linearly () with the dose of supplemental OAB. In the lower intestine, pH remained unaffected by dietary treatments. Unlike BMD, supplemental OAB selectively promoted growth of lactobacilli in the small intestine. Moreover, compared to BMD, OAB tended to maintain the villi in the small intestine at a greater height. Although benefits of exceeding the dose of supplemental organic acids more than 1 g/kg diet are not always conspicuous, based on the live weight and feed conversion data, supplementation of 2 g organic acid per kg diet may be recommended for total replacement of AGPs in broiler diet.

Effect of dietary probiotic, antibiotic or combination on broiler performance, cecum microbial population and ileal development

2020 ◽  
Vol 21 (3) ◽  
pp. 74-79
Author(s):  
Ahmed Elbaz ◽  
Said El-sheikh
Keyword(s):  
Control Diet ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Experimental Period ◽  
Nutrient Digestibility ◽  
Lipoprotein Cholesterol ◽  
Control Group ◽  
Gut Health ◽  
Feed Conversion ◽  
Broiler Performance

Objective: To investigate the effect of antibiotics and/or probiotics on broiler performance, some serum metabolites, cecum microflora composition, and ileum histomorphology under the Egyptian conditions. Design: Randomized controlled experimental study. Animals: Two hundred forty 1-day-old Ross (308) chicks were reared till 35 days of age. Procedures: The birds were randomly allocated into four main groups: a control diet without additives (CON); probiotic (Lactobacillus acidophilus) supplemented diet (PRO); antibiotic (Avilamycin) supplemented diet (ANT) and a mix group (AP) that received antibiotic in the diet form 1 to 4 days of age and treated during the rest of the experimental period with probiotics. Results: Chickens fed on probiotic or antibiotic diets had linear improvement in live body weight (LBW) and feed conversion ratio (FCR) compared with the control group, while the best LBW and FCR were in the AP group. An improvement in the nutrient digestibility was observed in the probiotic added groups (PRO and AP). Serum cholesterol and low-density lipoprotein cholesterol contents decreased when antimicrobial (probiotic or antibiotic) supplementations were used, while there was an increase in high-density lipoprotein cholesterol contents, serum total protein, and albumin levels. Among all groups, cecum Clostridium perfringens and Escherichia coli counts decreased; however, there was an increase in Lactobacillus count compared to the control group. In probiotic supplemented groups (PRO and AP), a significant (P<0.05) improvement in ilea architecture. Conclusion and clinical relevance: Using probiotic after initial treatment with an antibiotic in broiler diets had a positive effect on broiler growth performance, gut health (improved cecum microbial populations and ileum histomorphology), and nutrient digestibility.

scholarly journals Galacto-oligosaccharides modulate the juvenile gut microbiome and innate immunity to improve broiler chicken performance

2019 ◽  
Author(s):  
Philip J. Richards ◽  
Geraldine M. Flaujac Lafontaine ◽  
Phillippa L. Connerton ◽  
Lu Liang ◽  
Karishma Asiani ◽  
...  
Keyword(s):  
Growth Rate ◽  
Innate Immunity ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Control Diet ◽  
Innate Immune ◽  
Gut Health ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Key Species

ABSTRACTImprovements in growth performance and health are key goals in broiler chicken production. Inclusion of prebiotic galacto-oligosaccharides in broiler feed enhanced the growth rate and feed conversion of chickens relative to a calorie-matched control diet. Comparison of the cecal microbiota identified key differences in abundance ofLactobacillusspp. Increased levels ofL. johnsoniiin GOS-fed juvenile birds at the expense ofL. crispatuswas linked to improved performance (growth rate and market weight). Investigation of the innate immune responses highlighted increases of ileal and cecal IL-17A gene expression counterposed to a decrease in IL-10 and IL-17F. Quantification of the autochthonousLactobacillusssp. revealed a correlation between bird performance andL. johnsoniiabundance. Shifts in the cecal populations of keyLactobacillusspp. of juvenile birds primed intestinal innate immunity without harmful pathogen challenge.IMPORTANCEImprovements in the growth rate of broiler chickens can be achieved through dietary manipulation of the naturally occurring bacterial populations whilst mitigating the withdrawal of antibiotic growth promoters. Prebiotic galacto-oligosaccharides (GOS) are manufactured as a by-product of dairy cheese production, which can be incorporated in the diets of juvenile chickens to improve their health and performance. This study investigates the key mechanisms behind this progression and pin pointsL. johnsoniias a key species that facilitates the enhancements in growth rate and gut health. It also relates the role of the innate immune system in the response to the GOS diet.

scholarly journals PSIX-35 Alternatives to antibiotic supplementation on broiler performance under highland conditions

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 343-343
Author(s):  
Rodolfo Riboty ◽  
Christian H Ponce
Keyword(s):  
Block Design ◽  
Dietary Treatment ◽  
Negative Control ◽  
Feed Additive ◽  
Feeding Period ◽  
Limited Information ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Health Challenge

Abstract There is limited information on performance and gut microbiota balance response to alternatives to antibiotics growth promoters on broiler at high altitude and level of health challenge. Therefore, Two experiments were conducted to evaluate the effects of alternatives to antibiotics supplementation on broiler performance and health at 2500 m.a.s.l. In, Exp. 1, a total of 1080 day-old Cobb-500 male broilers were used in a completely randomized block design. Eight experimental diets containing 1) Negative Control (NC), 2) Bacitracin methylene Disalicylate at 55 mg/kg (BMD), 3) Direct fed microbial at 750 mg/kg (DFM) 2x1011 CFU/kg of lactic acid bacteria, 4) a blend of essential oils (150 mg/kg; EO), 5) combination of permeabilizers, organic acids and phytochemicals (0.1%, CN), 6) DFM+EO, 7) DFM+CN, and 8) EO +CN. Performance was evaluated through the feeding period of 42 d with a new litter. There were no significant differences in performance nor mortality rate during the whole feeding period. In, Exp. 2, 1232 one-day-old Cobb-500 male chicks were randomly divided into 56 experimental units and exposed to similar treatments as described on Exp. 1. Performance variables, and cecal-microbiota population were evaluated during 42-d with a re-used litter. Overall, daily gain was increased for BMD, DFM, and EO+CN compared to NC (P &lt; 0.05). Feed intake was not altered by dietary treatment (P = 0.892). Feed conversion rate was improved by BMD and EO compared to NC (P &lt; 0.05). Total coliform, and E. coli population was increased by DFM and CN compared to NC (P &lt; 0.005). Total Enterobacteriacea was not altered by dietary treatment with exception of EO, that increased its population compared to remaining treatments (P &lt; 0.001). Data form this experiments suggest that positive effect of organic feed additive supplementation, especially EO, depend on bird health challenge at high altitudes.

scholarly journals A direct fed microbial containing a combination of three-strain Bacillus sp. can be used as an alternative to feed antibiotic growth promoters in broiler production

2013 ◽  
Vol 2 ◽  
Author(s):  
Yueming Dersjant-Li ◽  
A. Awati ◽  
C. Kromm ◽  
C. Evans
Keyword(s):  
Large Scale ◽  
Production Efficiency ◽  
Total Mortality ◽  
Commercial Production ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Strain Combination ◽  
Bacillus Spp ◽  
Antibiotic Growth Promoters

SummaryThe objective of the study was to test the effect of a direct fed microbial (DFM) on the performance of broilers compared to an antibiotic growth promoter under large scale, commercial production settings. Three dietary treatments were tested in a completely randomized design including: 1) a control (C) diet containing 500 FTU/kg phytase and a mixture of xylanase, amylase, protease ; 2) C+ a specific three-strain combination of Bacillus spp. (DFM) and 3) C+ bacitracin methylene disalicylate (BMD). Six, similar commercial broiler houses (15,300 birds per house) were used to give two replicate houses per treatment. The birds (Hubbard x Cobb500) were fed pelleted and crumbled diets ad libitum throughout the 44 day trial period. Due to the large scale, commercial nature of the trial, no significant differences were observed in production parameters among treatments, except that DFM treatment resulted in significantly lower mortality numbers in the last two days (43 to 44d) compared to the control. However, the DFM treatment group showed numerically higher live bodyweight, lower feed conversion ratio (corrected for body weight and mortality) and lower total mortality weight compared to either the control or BMD groups, resulting in an improved production efficiency factor. When compared to control, using DFM resulted in a gross benefit of US$ 0.06 /bird, while using BMD was not cost effective. In conclusion, DFM containing a three-strain combination of Bacillus spp. may be used as an alternative to antibiotic growth promoters, resulting in economic benefit under commercial production settings in broilers fed commercial diets.

scholarly journals Alteration of the Ileal Microbiota of Weanling Piglets by the Growth-Promoting Antibiotic Chlortetracycline

2009 ◽  
Vol 75 (17) ◽  
pp. 5489-5495 ◽  
Author(s):  
Elizabeth Rettedal ◽  
S�bastien Vilain ◽  
Stacy Lindblom ◽  
Kelly Lehnert ◽  
Clay Scofield ◽  
...  
Keyword(s):  
Growth Promotion ◽  
Pcr Amplification ◽  
Growing Pigs ◽  
Rrna Gene ◽  
Significant Shift ◽  
Growth Promoters ◽  
Antibiotic Resistant ◽  
Operational Taxonomic Units ◽  
Bacterial Microbiota ◽  
Antibiotic Growth Promoters

ABSTRACT Antibiotics such as chlortetracycline (CTC) have been used to promote growth of pigs for decades, but concerns over increased antibiotic-resistant infections in humans have prompted the development of alternative strategies. Developing alternatives to antibiotic growth promoters (AGPs) could be informed by information on the mechanisms of growth promotion, notably, how AGPs affect the microbial populations of the gastrointestinal tract. Pigs from three sows were aseptically delivered by cesarean section. Six piglets were distributed to each of two foster mothers until weaning, when piglets were fed a diet with or without 50 mg/kg CTC for 2 weeks. The ileal bacterial microbiota was characterized by using a cultivation-independent approach based on DNA extraction, PCR amplification, cloning, and sequencing of the 16S rRNA gene pool. The ileal and mucosal communities of these growing pigs were dominated by Lactobacillus bacteria, various members of the family Clostridiaceae, and members of the poorly known genus Turicibacter. Overall, CTC treatment resulted in three shifts: a decrease in L actobacillus johnsonii, an increase in L. amylovorus, and a decrease in Turicibacter phylotypes. The composition of the microbiota varied considerably between individual pigs, as revealed by shared operational taxonomic units (OTUs) and similarity (SONS) analysis (θYC values). While the observed variation between untreated pigs obscured the possible effect of CTC, ∫-LIBSHUFF and SONS analyses of pooled libraries indicated a significant shift due to CTC in both the lumen and the mucosa, with some OTUs unique to either treated or control ileum. DOTUR analysis revealed little overlap between control and treated communities at the 3% difference level, indicating unique ileal communities in the presence of CTC.

scholarly journals Antimicrobial Bacillus: Metabolites and Their Mode of Action

Antibiotics ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 88
Author(s):  
Charlie Tran ◽  
Ian E. Cock ◽  
Xiaojing Chen ◽  
Yunjiang Feng
Keyword(s):  
World Health ◽  
The European Union ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Agricultural Industry ◽  
Antibiotic Growth Promoters ◽  
Health Organization ◽  
Harsh Conditions ◽  
Spore Forming Bacteria ◽  
Upper Gastrointestinal

The agricultural industry utilizes antibiotic growth promoters to promote livestock growth and health. However, the World Health Organization has raised concerns over the ongoing spread of antibiotic resistance transmission in the populace, leading to its subsequent ban in several countries, especially in the European Union. These restrictions have translated into an increase in pathogenic outbreaks in the agricultural industry, highlighting the need for an economically viable, non-toxic, and renewable alternative to antibiotics in livestock. Probiotics inhibit pathogen growth, promote a beneficial microbiota, regulate the immune response of its host, enhance feed conversion to nutrients, and form biofilms that block further infection. Commonly used lactic acid bacteria probiotics are vulnerable to the harsh conditions of the upper gastrointestinal system, leading to novel research using spore-forming bacteria from the genus Bacillus. However, the exact mechanisms behind Bacillus probiotics remain unexplored. This review tackles this issue, by reporting antimicrobial compounds produced from Bacillus strains, their proposed mechanisms of action, and any gaps in the mechanism studies of these compounds. Lastly, this paper explores omics approaches to clarify the mechanisms behind Bacillus probiotics.

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