scholarly journals Comparison of performance and feed digestibility of the non-antibiotic feed supplement (Novacid) and an antibiotic growth promoter in broiler chickens

2019 ◽  
Vol 98 (2) ◽  
pp. 904-911 ◽  
Author(s):  
Milad Manafi ◽  
Mahdi Hedayati ◽  
Nasrollah Pirany ◽  
Apeh Akwu Omede
2021 ◽  
Vol 883 (1) ◽  
pp. 012013
Author(s):  
B P Mahardhika ◽  
R Mutia ◽  
M Ridla

Abstract This study has been carried out to evaluate the use of drinking water-soluble probiotics as an alternative to Zinc bacitracin Antibiotic Growth Promoter (AGP) in an effort to reduce the concentration of ammonia excreta as a result of increased feed digestibility. The probiotic used contains 2.0 × 107 CFU mL−1 Lactobacillus sp, 1.6 × 107 CFU mL−1 Bacillus sp, and 7.4 × 109 CFU mL−1 Streptomyces sp. The excreta sample was obtained from 15 male Lohmann strain broiler chickens aged 35 days from a total population of 300 chickens that had previously been reared since Day Old Chick. The chickens were distributed into three treatments and five replications in a metabolic cage with a size of 50 cm × 30 cm × 56 cm for three days. This study used Completely Randomized Design (CRD) with Analysis of Variance (ANOVA). The addition of probiotic significantly reduced (P <0.01) water content and ammonia concentration of broiler chicken excreta. The addition of drinking water-soluble probiotics significantly increased (P <0.01) the feed intake and feed digestibility of broiler chicken. The use of probiotics was better than Zinc bacitracin in reducing excreta ammonia concentration and feed digestibility.


2021 ◽  
Author(s):  
Avishek Biswas ◽  
Namit Mohan ◽  
Kapil Dev ◽  
N A Mir ◽  
Ashok Kumar Tiwari

Abstract Antibiotics have revolutionized the intensive poultry production system as a feed additive by promoting growth, production and meat quality through improving gut health and reduction of sub-clinical infections during last five decades. However, currently, the usage of antibiotics in poultry production is under severe scientific and public scrutiny, because antibiotic growth promoter (AGP) has been linked to the possible development of antibiotic-resistant pathogens, which may pose a threat to human health. After European Union ban on in feed antibiotics as growth promoter in poultry, since 2006, prebiotics offer a potential substitute to in feed antibiotics. In this effort, the objective of this present study was to investigate the potentiality of prebiotics (mannan oligosaccharides-MOS and fructo-oligosaccharides-FOS) in replacement of antibiotic growth promoter and their relationship with physio-biochemical indices, antioxidant and oxidative stability and carcass traits of broiler chickens meat. 240 day-old broiler chicks (1 d) of uniform body weight were divided into 30 replicate groups having 8 birds in each. Six corn based dietary treatments were formulated viz. T1 (control diet), T2 (T1 + Bacitracin methylene di-salicylate @ 20 mg/kg diet), T3 (T1 + 0.1% MOS), T4 (T1 + 0.2% MOS), T5 (T1 + 0.1% FOS), and T6 (T1 + 0.2% FOS). Significant (P<0.05) increase in cut up part yields (%) and reduction in cholesterol and fat content in T4 (0.2 % MOS) group. The water holding capacity (WHC) and extract release volume (ERV) were increase (P<0.05) in 0.1 or 0.2 % MOS supplemented group. DPPH (1, 1-diphenyl-2-picrylhydrazy) was higher (P<0.05) and lipid oxidation (free fatty acid and thio-barbituric acid reactive substances) was lower (P<0.05) in T4 group. The standard plate count (SPC), staphylococcus and coliform counts were decreased (P<0.05) in T3 or T4 group. Thus, it can be concluded that mannan oligosaccharides (MOS) may be incorporated at 0.2% level in diet for improved physio-biochemical indices, antioxidant and oxidative stability and carcass characteristics of broiler chickens meat and it may be suitable replacer of antibiotic growth promoter.


1981 ◽  
Vol 61 (4) ◽  
pp. 977-981 ◽  
Author(s):  
S. LEESON ◽  
J. D. SUMMERS

Two trials were conducted with Nicholas strain turkeys. In trial 1, 300 male poults were reared to 49 days using either initial stages of 'large-turkey' feeding regime, or a situation allowing for diet self-selection of protein and energy. Within these programs, diets were supplemented with 10 ppm avoparcin, while a comparable number of controls received no growth promoter. Avoparcin improved growth rate (P < 0.01) irrespective of age, and improved feed utilization to 35 days of age. This effect was not confounded with the form in which diets were offered. In a second trial a 'broiler-turkey' feeding schedule was used, with birds slaughtered at 88 days. Diet treatments consisted of a control diet containing 33 ppm robenz and test diets containing either 33 ppm robenz + 10 ppm avoparcin or 10 ppm avoparcin alone. Avoparcin improved weight gain (P < 0.05) irrespective of coccidiostat inclusion. Feed utilization and carcass grades were not influenced by diet. The 7% improvement in body weight noted here with avoparcin was substantially greater than that previously observed with broiler chickens.


2006 ◽  
Vol 5 (4) ◽  
pp. 395-397 ◽  
Author(s):  
H. Rajaian . ◽  
J. Jalaee . ◽  
A. Aghajani .

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ali Daneshmand ◽  
Hassan Kermanshahi ◽  
Mohammad Hadi Sekhavati ◽  
Ali Javadmanesh ◽  
Monireh Ahmadian ◽  
...  

Abstract Three hundred and sixty 1-day-old male broiler chicks were randomly allocated to 4 treatments of 6 replicates to evaluate the effects of cLFchimera, a recombinant antimicrobial peptide (AMP), on gut health attributes of broiler chickens under necrotic enteritis (NE) challenge. Treatments were as follows: (T1) unchallenged group fed with corn-soybean meal (CSM) without NE challenge and additives (NC); (T2) group fed with CSM and challenged with NE without any additives (PC); (T3) PC group supplemented with 20 mg cLFchimera/kg diet (AMP); (T4) PC group supplemented with 45 mg antibiotic (bacitracin methylene disalicylate)/kg diet (antibiotic). Birds were sampled for villi morphology, ileal microbiota, and jejunal gene expression of cytokines, tight junctions proteins, and mucin. Results showed that AMP ameliorated NE-related intestinal lesions, reduced mortality, and rehabilitated jejunal villi morphology in NE challenged birds. While the antibiotic non-selectively reduced the count of bacteria, AMP restored microflora balance in the ileum of challenged birds. cLFchimera regulated the expression of cytokines, junctional proteins, and mucin transcripts in the jejunum of NE challenged birds. In conclusion, cLFchimera can be a reliable candidate to substitute growth promoter antibiotics, while more research is required to unveil the exact mode of action of this synthetic peptide.


Author(s):  
LD Parker ◽  
H Smith ◽  
DW Rock

Avoparcin is a feed antibiotic growth promoter used widely in Europe for broiler chickens, pigs and beef cattle.This paper presents the results of 17 trials conducted in the UK (13), France (3) and Germany (1) to determine the efficacy of avoparcln at levels of 50-150mg per head per day for improving milk production of lactatlng dairy cows.


2021 ◽  
Author(s):  
Magdalena Krauze

Genetic advance aimed at accelerating the growth rate of slaughter birds have reduced the natural resistance of poultry to infections. It also increased susceptibility to stress, which resulted in deterioration of the welfare and productivity of poultry. Additionally, intensive poultry production poses a risk of exposure of chickens to unfavorable zoo-hygienic conditions and contamination with pathogens from the external environment (bedding, water, feed, hen house staff, sick birds in the flock). Due to the potential production losses, measures are taken to improve the health and effectiveness of bird rearing, for example by using growth stimulants and improving the composition of the gastrointestinal microbiome and improving metabolism and the work of the immune system. The addition of phytobiotics to feed or drinking water supports digestion and metabolism in the body, stimulates the growth and development of a useful microbiome, limits the multiplication and adhesion of pathogens, and improves the structure and functioning of enterocytes. The aim of this study is to present the health benefits resulting from the use of phytobiotics in poultry production, as well as to make people aware of the dangers of incompetent incorporation of herbs into feed mixtures or into drinking water. Due to the fact that not all species of animals react equally to a given plant, the selection of plant materials should be carefully considered and matched to the expected benefits. By using phytobiotics you can improve growth and performance of broiler chickens, through greatly improve digestion and nutrient assimilation. Plant additives can improve health through stimulate immunity and increase resistance to stress. Using of phitobiotics improve the quality of meat and eggs, increase the weight of valuable parts of carcass (pectoral and leg muscles) and stimulate laying. Unfortunately, due to the potentially toxic effect of an excess of certain herbs on the work of the liver, and the adverse changes in the palatability of eggs, use caution in the use some herbs e.g. of garlic, turmeric, rapeseed, alfa alfa, shiny privet or moringa.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Avishek Biswas ◽  
Namit Mohan ◽  
Kapil Dev ◽  
Nasir Akbar Mir ◽  
Ashok Kumar Tiwari

AbstractThe objective of this present study was to investigate the potentiality of prebiotics (mannan oligosaccharides-MOS and fructo-oligosaccharides-FOS) in replacement of antibiotic growth promoter and their relationship with physico-chemical indices, antioxidant and oxidative stability and carcass traits of broiler chickens meat. Accordingly, 240 day-old broiler chicks of uniform body weight divided in 6 treatment groups with 5 replicate each (5 × 6 = 30) having 8 birds in each replicate. Six corn based dietary treatments were formulated viz. T1 (control diet), T2 (T1 + Bacitracin methylene di-salicylate @ 0.002%), T3 (T1 + 0.1% MOS), T4 (T1 + 0.2% MOS), T5 (T1 + 0.1% FOS), and T6 (T1 + 0.2% FOS). Significant (p < 0.05) increase in cut up part yields (%) and reduction in cholesterol and fat content in T4 (0.2% MOS) group. The water holding capacity (WHC) and extract release volume (ERV) were increase (p < 0.05) in 0.1 or 0.2% MOS supplemented group. DPPH (1, 1-diphenyl-2-picrylhydrazy) was higher (p < 0.05) and lipid oxidation (free fatty acid and thio-barbituric acid reactive substances) was lower (p < 0.05) in T4 group. The standard plate count (SPC), staphylococcus and coliform counts were decreased (p < 0.05) in T3 or T4 group. Thus, it can be concluded that mannan oligosaccharides (MOS) may be incorporated at 0.2% level in diet for improved physico-chemical indices, antioxidant and oxidative stability and carcass characteristics of broiler chickens meat and it may be suitable replacer of antibiotic growth promoter.


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