Effects of a protected inclusion of organic acids and essential oils as antibiotic growth promoter alternative on growth performance, intestinal morphology and gut microflora in broilers

2017 ◽  
Vol 88 (9) ◽  
pp. 1414-1424 ◽  
Author(s):  
Yanli Liu ◽  
Xin Yang ◽  
Hongliang Xin ◽  
Si Chen ◽  
Chengbo Yang ◽  
...  
Keyword(s):  
Organic Acids ◽  
Essential Oils ◽  
Growth Performance ◽  
Intestinal Morphology ◽  
Gut Microflora ◽  
Growth Promoter

scholarly journals Effects of antibiotic growth promoter and dietary protease on growth performance, apparent ileal digestibility, intestinal morphology, meat quality, and intestinal gene expression in broiler chickens: a comparison

2020 ◽  
Vol 98 (9) ◽  
Author(s):  
Peng Lu ◽  
Janghan Choi ◽  
Chongwu Yang ◽  
Marion Mogire ◽  
Shangxi Liu ◽  
...  
Keyword(s):  
Amino Acid ◽  
Growth Performance ◽  
Meat Quality ◽  
Amino Acid Transporter ◽  
Intestinal Morphology ◽  
Mrna Abundance ◽  
Growth Promoter ◽  
Ctrl Group ◽  
Ileal Digestibility ◽  
Acid Transporter

Abstract This study aimed to evaluate the effects of supplementing broiler diets with a dietary protease on growth performance, digestive function, intestinal morphology, and meat quality as compared with feeding diets with or without an antibiotic growth promoter (AGP). A total of 240 1-day-old male chicks (Cobb 500, 48.3 ± 3.3 g) were distributed to three treatments with eight replicates (10 birds per replicate). Three treatments were: 1) corn–soybean meal basal diets (CTRL), 2) basal diets with 0.003% avilamycin (AB), and 3) basal diets with 0.0125% protease (PRT). The diets were provided as mash form, and birds were fed ad libitum during the whole experimental period. On day 45, birds were euthanized, and tissue and digesta samples were collected. On day 46, the remaining birds were processed in a commercial slaughterhouse, and breast muscle samples were collected. Despite a trend for a decreased feed conversion ratio (FCR) in the AB group during the whole phase (P = 0.071), no significant differences in growth performance parameters and relative weights of organs were observed (P > 0.05) among the groups. The AB and PRT groups showed significantly greater apparent ileal digestibility of amino acids (AA) compared with the CTRL group (P < 0.05). The PRT group significantly improved the morphology of duodenum and jejunum (P < 0.05). No differences were detected for meat quality, white striping, and woody breast among the groups (P > 0.05). For the gene expressions, the AB group showed a greater level of B0-system neutral amino acid co-transporter 1 and excitatory amino acid transporter 1 mRNA abundance compared with PRT group, while a significantly lesser level of cationic amino acid transporter 1 mRNA abundance was observed in the AB group compared with CTRL group (P < 0.05). The PRT group had a lesser level of peptide transporter 1 mRNA abundance in the jejunum than the CTRL group (P < 0.05). The highest mRNA abundances of zonula occludens-1 and cadherin 1 were observed in the CTRL group (P < 0.05). In conclusion, supplementation of avilamycin tended to reduce FCR and significantly improved AA utilization, and supplementation of dietary protease significantly enhanced intestinal morphology and AA utilization in broilers. In that respect, exogenous protease use appears to be an interesting tool to be considered in AGP reduction strategies.

scholarly journals PSIX-15 Effects of mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length and intestinal morphology in broilers

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 347-348
Author(s):  
Hanjin Oh ◽  
Shudong Liu ◽  
Won Yun ◽  
Jihwan Lee ◽  
Jiseon An ◽  
...  
Keyword(s):  
Essential Oils ◽  
Organic Acid ◽  
Growth Performance ◽  
Basal Diet ◽  
Feed Additives ◽  
Intestinal Morphology ◽  
Acid Supplementation ◽  
Bone Length ◽  
Significant Difference ◽  
Blood Profiles

Abstract This study was conducted to evaluate the effects of mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length and intestinal morphology in ROSS broilers. A total of 40 Ross 308 broiler (1140 ±80g) were randomly allocated to 2 groups, basal diet (CON), basal diet+0.05% Avi-protect® (AVI), with 20 replicates every group, and 1 chicken per replicate per cage. The BW (P < 0.05) and weight gain (P < 0.05) of broilers were increased in the AVI group compared with the CON group. The content of triglyceride (P < 0.05) and LDL (P < 0.05) significantly decreased in the AVI group compared with the CON group. There was no significant difference on leg bone length between the AVI and the CON group (P > 0.05). the villi height (P < 0.05) and goblet cell count (P < 0.05) significantly increased in the AVI group compared with the CON group. In conclusion, the Avi-protect® as feed additives improved the growth performance and lipid metabolism and promoted the development of intestinal morphology in broilers.

scholarly journals Alternatives to antibiotics in diets of weaned piglets

2017 ◽  
Vol 47 (12) ◽  
Author(s):  
Soraia Viana Ferreira ◽  
Lívia Maria dos Reis Barbosa ◽  
Marcos Henrique Soares ◽  
Camila Schultz Marcolla ◽  
Débora Muratori Holanda ◽  
...  
Keyword(s):  
Organic Acids ◽  
Basal Diet ◽  
Negative Control ◽  
Intestinal Morphology ◽  
Daily Weight Gain ◽  
Experimental Unit ◽  
Average Weight ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Randomized Design

ABSTRACT: This experiment was conducted to evaluate the effect of growth promoter additives an alternative to antibiotics on performance, intestinal morphology and on microbiota of 21-to-35-day-old piglets. A total of 160 commercial crossbred piglets (males and females) with initial weight of 6.10±0.709kg were allotted in a completely randomized design with five treatments: Basal diet - Negative Control (NC); Basal diet + antibiotic (PC); Basal diet + mannanoligosaccharides (MOS); Basal diet + organic acids (OA), Basal diet + mannanoligosacharides + organic acids (MOS+OA), eight replicates and four piglets per experimental unit. The inclusion of additives in the diets had no effect (P>0.05) on the final average weight of piglets. Similarly, no effects (P<0.05) were observed on average daily feed intake and on average daily weight gain. The feed conversion improved (P<0.01) with the inclusion of additives in the diets compared to piglets fed with the NC. There was no effect (P>0.05) of the dietary additives on intestinal morphology and microbiota composition (enterobacteria and lactobacilli). Use of antibiotics, prebiotics, organic acids or prebiotics associated with organic acids in the diet improves feed conversion of piglets from 21 to 35 days of age. The additives have no major effects on piglets’ intestinal morphology and microbiota.

scholarly journals Eucommia ulmoides Flavones as Potential Alternatives to Antibiotic Growth Promoters in a Low-Protein Diet Improve Growth Performance and Intestinal Health in Weaning Piglets

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1998
Author(s):  
Daixiu Yuan ◽  
Jing Wang ◽  
Dingfu Xiao ◽  
Jiefeng Li ◽  
Yanhong Liu ◽  
...  
Keyword(s):  
Growth Performance ◽  
Intestinal Morphology ◽  
Coliform Bacteria ◽  
Feed Ratio ◽  
Growth Promoter ◽  
Eucommia Ulmoides ◽  
Intestinal Health ◽  
Villus Height ◽  
Low Protein ◽  
Weanling Piglets

Eucommia ulmoides flavones (EUF) have been demonstrated to attenuate the inflammation and oxidative stress of piglets. This study aimed to test whether EUF could be used as an alternative antibiotic growth promoter to support growth performance and maintain intestinal health in weanling piglets. Weaned piglets (n = 480) were assigned into three groups and fed with a low-protein basal diet (NC), or supplementation with antibiotics (PC) or 0.01% EUF (EUF). Blood, intestinal contents, and intestine were collected on days 15 and 35 after weaning. The results showed the PC and EUF supplementations increased (p < 0.05) body weight on day 35, average daily gain and gain: feed ratio from day 15 to day 35 and day 0 to day 35, whereas decreased (p < 0.05) the diarrhea index of weanling piglets. EUF treatment increased (p < 0.05) jejunal villus height: crypt depth ratio, jejunal and ileal villus height, and population of ileal lactic acid bacteria on day 15 but decreased (p < 0.05) the population of ileal coliform bacteria on day 15 and day 35. These findings indicated the EUF, as the potential alternative to in-feed antibiotic growth promoter, could improve growth performance and intestinal morphology, and decrease colonization of coliform bacteria and diarrhea index in weanling piglets.

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