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.

scholarly journals Effect of organic acid treated diets on growth, apparent nutrient digestibility and faecal moisture of broiler chickens

2021 ◽  
Vol 43 (2) ◽  
pp. 218-223
Author(s):  
E. K Ndelekwute ◽  
E. D Assam ◽  
P. C Ekere ◽  
U. E. Ufot
Keyword(s):  
Organic Acids ◽  
Organic Acid ◽  
Broiler Chickens ◽  
Live Weight ◽  
Basal Diet ◽  
Protein Digestibility ◽  
Nutrient Digestibility ◽  
Randomized Design ◽  
Dietary Treatments ◽  
Daily Gain

An experiment was conducted to determine the effect of four organic acids (acetic, butyric, citric and formic acids) inclusion in the diets of broilers on growth, nutrient digestibility and faecal moisture. One hundred and fifty one day old Arbor-Acre - plus chicks were used. There were five dietary treatments. Basal diet which served as control contained no organic acid was formulated, while diets 2, 3, 4 and 5, respectively contained 0.25% acetic, butyric, citric and formic acids formed by adding 0.25% of each acid to the basal diet. Each treatment was replicated three times with 10 birds per replicate, arranged in completely randomized design (CRD). Diets were both isocaloric and isonitrogenous. The experiment lasted for 4 from the fourth to the eight week. Feed and water were given ad libitum. There were no significant differences (P>0.05) in live weight, daily gain, feed intake, feed: gain ratio and protein efficiency ratio. Acetic acid significantly (P<0.05) increased water intake. Fecal moisture was significantly reduced by citric and butyric acids. Higher crude protein digestibility was achieved by butyric acid (69.98%) citric (69.67%) and formic acid (71.33%) than the control (63.75%). Digestibility of CF, EE and ash was significantly (P<0.05) higher in all the organic acid groups. Feeding of diets treated with 0.25% of the test organic acids at the finisher phase, in that despite improved digestibility of nutrients the practice should not be encouraged for reasons of insignificant growth performance.

scholarly journals Effect of organic acid treated diets on growth, apparent nutrient digestibility and faecal moisture of broiler chickens

2021 ◽  
Vol 43 (1) ◽  
pp. 218-225
Author(s):  
E. K. Ndelekwute ◽  
E. D. Assam ◽  
P. C. Ekere ◽  
U. E. Ufot
Keyword(s):  
Organic Acids ◽  
Organic Acid ◽  
Broiler Chickens ◽  
Live Weight ◽  
Basal Diet ◽  
Protein Digestibility ◽  
Nutrient Digestibility ◽  
Randomized Design ◽  
Dietary Treatments ◽  
Daily Gain

An experiment was conducted to determine the effect of four organic acids (acetic, bubric, citric and formic acids) inclusion in the diets of broilers on growth, nutrient digestibility and faecal moisture. One hundred and fifty one day old Arbor-Acre-plus chicks were used. There were five dietary treatments. Basal diet which served as control contained no organic acid was formulated, while diets 2, 3, 4 and 5, respectively contained 0.25% acetic, butyric, citric and formic acids formed by adding 0.25% of each acid to the basal diet. Each treatment was replicated three times with 10 birds per replicate, arranged in completely randomized design (CRD). Diets were both isocaloric and isonitrogenous. The experiment lasted for 4 from the fourth to the eight week. Feed and water were given ad libitum. There were no significant differences (P>0.05) in live weight, -daily gain, feed intake, feed: gain ratio and protein efficiency ratio. Acetic acid significantly (P<0.05) increased water intake. Fecal moisture was significantly reduced by citric and butyric acids. Higher crude protein digestibility was achieved by butyric acid (69.98%) citric (69.67%) and formicucid (71.33%) than the control (63.75%). Digestibility of CF, EE and ash was significantly (P<0.05) higher in all the organic acid groups. Feeding of diets treated with 0.25% of the test organic acids at the finisher phase, in that despite improved digestibility of nutrients the practice should not be encouraged for reasons of insignificant growth performance.

Interaction effects of dietary ginger Zingiber officinale and yeast Sacharomyces cerevisiae supplementation on performance, carcass yield and gut micro flora of broiler chickens

2020 ◽  
Vol 47 (2) ◽  
pp. 89-99
Author(s):  
W. A. Olayemi ◽  
L. A. Rabiu ◽  
A. O. Akapo ◽  
O. A. Oso ◽  
T. Ogunleye
Keyword(s):  
Broiler Chickens ◽  
Animal Feed ◽  
Control Diet ◽  
Zingiber Officinale ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Improved Performance ◽  
Dietary Treatments

Consumer concern for drug residues in meat and eggs as well as ban imposed on the use of antibiotics in animal feed as growth promoter call for alternative search. A 56days feeding trial was conducted to investigate the effect of ginger inclusion with and without yeast supplementation on performance, carcass characteristics, gut micro flora of broiler chickens. A total of One hundred and eighty day, one old Arbor acre broiler chicks wereallotted on weight equalization basis to 6 dietary treatments in a 3 × 2 factorial arrangements (3 levels of ginger (0%, 4% and 5%) with and without yeast (0%, 1% levels). The treatments were replicated thrice with ten birds per replicate. Feed and water were provided ad- libtum. Performance showed that birds on combination (5% ginger and 1% yeast) recorded highest weight (1527g) with better feed conversion while least weight (1202g) and least feed conversion were recorded with birds on ginger only. Highest eviscerated weight (1362.50g) and dressing percentage (72.79%) were recorded in broiler chicks on 1%Yeast + 5% Ginger while least values (1087.50g, 62.39%) were recorded with birds on yeast only. Total bacteria count increased from 1.20 x106cfu/ml (control) to 1.70 x106cfu/ml in diets supplemented 1% yeast and 5% ginger as well as Lactobacillus count increased with supplementation level Total anaerobic count decreased from1.10 x106cfu/ml in control diet to 0.68 x106cfu/ml in birds fed1% yeast and 5% ginger likewise coliform, clostridium and bacillus counts decreased with the additives (yeast and ginger) inclusion. It can be concluded that inclusion of ginger and yeast at 5% and 1% respectively in the diets improved performance and reduced pathogenic biota without detrimental effects in broiler chickens and might therefore serve as a natural substitute for synthetic growth promoters.

scholarly journals Evaluation of optimum inclusion levels of as replacement for antibiotic growth promoters in broiler chickens production under field conditions in Nigeria

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
O. Moses ◽  
P.A. Onimisi ◽  
J.O. Jegede ◽  
M. Afolayan
Keyword(s):  
Bacillus Subtilis ◽  
Broiler Chickens ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Final Weight ◽  
Antibiotic Growth Promoters ◽  
Test Of Significance ◽  
Dietary Treatments ◽  
Gpx Activity

A feeding trial was conducted to evaluate the response of broiler chickens fed diets supplemented with Bacillus subtilis as replacement for antibiotic growth promoters (AGPs). A total of 510 day old Ross broiler chicks were allotted randomly to five dietary treatments each replicated thrice, with 34 chicks per replicate. Bacillus subtilis was included at 0, 75000, 150,000 and 225,000cfu/100 Kg diet for T1-T4, respectively while T5 had Oxytetracycline. Parameters collected were on growth performance, Haematology, liver function, immune response, Antioxidant capacity, villi Morphometrics and ceacum microbial contents. All data were subjected to analysis of variance and significant differences among treatment means were compared using the Turkey test of significance. The results for the starter phase showed birds on the antimicrobials had significantly (P0.05) different for the starter phase while significant (P0.05) difference in all parameters measured except for Glutathione peroxidase (GPx).The GPx activity was significantly (P< 0.05) higher for birds fed levels of Bacillus subtilis when compared with the control and AGP. The result for the finisher phase showed that Birds fed diet supplemented with 75,000 cfu showed best performance in terms of final weight, feed consumed, feed conversion and had the least cost of production. VilliMorphometric showed significant (P

scholarly journals β-mannanase and mannan oligosaccharides in broiler chicken feed

2014 ◽  
Vol 45 (1) ◽  
pp. 111-117 ◽  
Author(s):  
Victor Ramos Sales Mendes de Barros ◽  
Geraldo Roberto Quintão Lana ◽  
Sandra Roselí Valerio Lana ◽  
Ângela Maria Quintão Lana ◽  
Fabio Sales Albuquerque Cunha ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Relative Weight ◽  
Basal Diet ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Randomized Design ◽  
Dietary Treatments ◽  
Mannan Oligosaccharides

The study aimed to evaluate the use of β-mannanase and mannan oligosaccharides (MOS) to replace growth promoters in broiler diets. Four hundred male Cobb broiler chicks were used, with initial weight of 45±1g, distributed in a completely randomized design with five treatments and eight repetitions of ten birds. The treatments were: basal feed; basal feed without growth promoter; basal feed without growth promoter + β-mannanase; basal feed without growth promoter + MOS; and basal feed without growth promoter + β-mannanase + MOS. The feed intake of the birds increased in response to dietary treatments compared to basal diet during the period 1-21 days of age. A higher weight gain and improved feed conversion was found at 42 days of age among birds that had received the basal diet without growth promoter + MOS. The absolute weight at slaughter, relative carcass and prime cuts except breast weights improved in response to dietary treatments compared to the basal diet at 42 days of age. No difference was observed in relative weight of the liver, while significant differences were found in the weight of heart, gizzard, and abdominal fat. It was concluded that β-mannanase and MOS can replace the growth promoters in broiler diets without compromising production and economic performance. However, the association of these products into the feed may cause negative interaction that reduces the broiler chickens' performance

Effects of butyric acid, mannanoligosaccharide (MOS) and avilamycin on performance and small intestine morphology of broiler chickens

2009 ◽  
Vol 2009 ◽  
pp. 233-233
Author(s):  
S N Mousavi ◽  
M Shivazad ◽  
N Ghazvini
Keyword(s):  
Fatty Acids ◽  
Antibiotic Resistance ◽  
Small Intestine ◽  
Butyric Acid ◽  
Broiler Chickens ◽  
Short Chain Fatty Acids ◽  
Growth Promoters ◽  
Potential Alternative ◽  
Antibiotic Growth Promoters ◽  
Public Scrutiny

The subtherapeutic use of antibiotics in animals has been under scientific and public scrutiny as antibiotic growth promoters (AGP) have been linked to the development of antibiotic resistance in bacteria, which poses a threat to human health (Smith et al., 2003). Short chain fatty acids such as butyrate are considered as potential alternative to AGP, In addition to its bactericidal activity; butyrate appears to play a role in development of the intestinal epithelium (Leeson 2005). Prebiotics (e.g. mannanoligosaccharides, MOS) are nondigestible feed ingredients that can selectively stimulate growth or metabolic activity of a limited number of intestinal microorganisms (Gibson and Roberfroid, 1995). This study was, therefore, conducted to investigate effectiveness of mannanoligosaccharides and butyric acid as potential alternatives to AGP in broilers.

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 Comparative Effect of Potentiated Zinc Oxide and Antibiotic Growth Promoters on Intestinal  Morphometry and Nutrient Digestibility in Broiler Chickens

2021 ◽  
Author(s):  
Babylyn Alday Moog ◽  
Amado Angeles ◽  
Florinia Merca ◽  
Percival Sangel
Keyword(s):  
Zinc Oxide ◽  
Broiler Chickens ◽  
Nutrient Digestibility ◽  
Broiler Chicks ◽  
Growth Promoters ◽  
Crypt Depth ◽  
Study Results ◽  
Antibiotic Growth Promoters ◽  
Intestinal Morphometry ◽  
Dietary Treatments

Abstract This study aims to determine the comparative effects of potentiated zinc oxide (pZnO) and antibiotic growth promoters (AGP) supplementation on intestinal morphometry and nutrient digestibility in broiler chickens. Four hundred straight-run day-old broiler chicks were randomly allotted to one of four dietary treatments replicated 10 times with 10 birds per replicate. Dietary treatments were: T1: Basal diets without AGP (negative control; NC), T2: Basal diets with 500 g/ton Maduramicin 10g and 500 g/ton Zinc bacitracin 150 (positive control; PC), T3: NC added with 150g/ton pZnO, and T4: PC added with 150g/ton pZnO in a 2x2 factorial design in RCBD. At days and 35, 10 birds were randomly selected per treatment 18 for morphometry of the duodenum, jejunum and ileum. At day 38, eight birds per treatment were used for the nutrient digestibility study. Results showed significant interaction effects (P<0.05) of AGP and pZnO supplementation on day 35 intestinal morphometry of duodenum’s villi height and villi height: crypt depth, and ileum’s crypt depth; apparent CODGE, AME, CP, DM and EE. Significant differences (P<0.05) with pZnO supplementation were only observed on feed intake and FCR of birds fed with pZnO at days 8-14 and fecal quality at days 0-7. Results of the study suggest that pZnO has the potential to replace AGPs without negatively affecting the intestinal morphometry, digestibility and growth performance of broiler chickens.

Performance, blood parameters and economic indices of broiler chickens fed graded levels of chestnut (Castenea sativa) phytobiotics as replacement for antibiotics growth promoters

2020 ◽  
Vol 47 (2) ◽  
pp. 161-170
Author(s):  
N. G. Dialoke ◽  
P. A. Onimisi ◽  
M. Afolayan
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Conversion Ratio ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Treatment Groups ◽  
Feed Cost ◽  
Final Weight ◽  
Antibiotic Growth Promoters ◽  
Economic Indices

A feeding trial was conducted to evaluate the performance, serum, lipid, haematology and economic indices of broiler chickens fed diets supplemented with different levels of Chestnut (Castenea sativa) phytobiotic as a replacement for antibiotic growth promoters (AGPs). A total of 300, oneday-old cobb 500 broiler chicks were allotted in a completely randomized design to five dietary treatments each replicated thrice, with 20 chicks per replicate. Chestnutphytobiotics was included at 0, 100, 125 and 150g/100 Kg diet while Oxytetracycline was included at 111g/100kg diet. Data was collected on growth performance, haematology, serum biochemical parameters, lipid profiles and economic indices. All data collected were subjected to analysis of variance and significant differences among treatment means were compared using the Duncan's Multiple Range Test of significance. At the end of the starterphase, result showed that chicks placed on 100g phytobiotics diet had significantly (P<0.05) high final weight and weight gain than other supplemented diets and control. There was significant (P<0.05) differences in the feed conversion ratio. Feed cost per kilogram gain was significantly lower in chicks fed control diet, followed by phytobiotics, however higher feed cost per kilogram gain was recorded for chicks fed diet containing Oxytetracycline. Weight gain was significantly (P < 0.05) higher on oxytetracycline based diet (1783.2g) for finisher phase however, there was an improved values for chicks placed on phytobiotics. Glucose (206.51mg/dL) was significantly higher in treatment diet that contained oxytetracycline. Haematological indices showed that values for white blood cell (91.90x103/μL) and Heterophils (20.63%) were significantly higher in diets containing oxytetracycline than other treatment groups. Values for red blood cell, monocytes, eosinophils and basophils were significantly (P<0.05) higher in broiler chickens fed diets containing 100g phytobiotics . Chestnut phytobiotics reduced the total cholesterol values from 151.13 - 96.55mg/dL when compared to other treatment groups. There were significant(P<0.05) differences in all the villi morphometry parameters measured except for crypt depth. The mean yield cost decreased as the level of phytobiotics increased. In conclusion, supplementation of Chestnut phytobiotics reduced total cholesterol and significantly improved the final weight, weight gain, feed cost per Kg gain and feed conversion ratio for both starter and finisher at 100g/100Kg. Chestnut phytobiotic is therefore a potential replacement for antibiotic growth promoters.

scholarly journals Phytogenic additive as an alternative to growth promoters in broiler chickens

2009 ◽  
Vol 39 (2) ◽  
pp. 522-527 ◽  
Author(s):  
Gerson Neudí Scheuermann ◽  
Anildo Cunha Junior ◽  
Lucas Cypriano ◽  
Alexandre Mossate Gabbi
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Positive Control ◽  
Negative Control ◽  
Feed Additive ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
The Cost

This study evaluated a phytogenic feed additive for broiler chickens. A total of 1,632 broiler chicks were distributed into four treatments: negative control (without growth promoter); positive control (avilamycine, 10ppm + colistin, 15ppm); and two alternative treatments with 150ppm of phytogenic additive, one with a reduced Ca and P levels diet (PA-R1) and the other with lower energy, and amino acids, besides Ca and P (PA-R2). The trial was conducted with 12 replicates, each consisted of a pen with 34 birds. The alternative diets showed body weight intermediate to the two controls at 42 days, with no significant (P>0.05) treatment effect on feed conversion ratio. No treatment differences (P>0.05) on carcass yield and composition was observed. There was a tendency of abdominal fat lipids saturation, when the phytogenic additive was used, as possible consequence of a decreased level of soybean oil in the diets. A difference (P<0.001) on ingredient consumption profile was observed between the treatments. All together, this study showed a possibility to reduce the cost of total feed used to produce a broilers or a ton of body weight by the utilization of the tested phytogenic additive.

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