Effect of a bacillary probiotic supplementation in broilers (original) (raw)

Bioefficacy of a probiotic feed additive in broiler diets

Three experiments were conducted to evaluate the effects of a probiotic supplement on the performance of broiler chickens. In each experiment, two treatments were applied during both the starter (1-21d) and the grower (22-42d) phases: a basal diet, and the basal diet supplemented with 10 9 CFU/kg Enterococcus faecium CECT 4515. Diets were presented as mash (Experiments I and II) or pellets following local custom, and were based on wheat, barley, maize and soybean meal. 18, 12 and 16 replicates of 22, 60 and 40 Ross-308 birds per treatment were used in Experiments I, II and III, respectively. In all the Experiments, probiotic supplementation increased feed intake at 21 d (53.3 vs 55.3 g/d; 46.4 vs 47.9 g/d; 41.0 vs 46.8 g/d; P<0.050). In addition, probiotic supplementation also increased growth in Experiments I and III (36.3 vs 37.8 g/d; 26.6 vs 30.1 g/d; P<0.050), and in Experiment II (28.0 vs 28.7 g/d; P<0.100).

Use of probiotics in diets of animal or vegetable origin for broilers

ABSTRACT Objective. Evaluate the use of probiotics in diets whit ingredients of animal or vegetable origin in production variables of broilers from 1 to 42 days of age. Materials and Methods. Were used 1056 one-day-old chicks, male, of lineage Ross 308, divided in to an experimental randomized design in 2X4 factorial arrangement, two origin of diet (animal or vegetable) and four promoters (antibiotic, two probiotics and a negative control) whit 6 replicates and 22 birds per unit. Results. At 7 days old there was a difference (p<0.05) in daily food intake, weight and weight gain and 14 days for weight, weight gain and mortality among diets. The feed conversion of 1-7 days did interaction (p<0.05) between types of diet and promoters. There was a difference (p<0.05) for weight and weight gain at 14 days of age between promoters. At 21 days of age presented mortality difference (p<0.05) for the type of diets; weight, weight gain, daily feed together and feed conversion showed difference for 5337 developers. At 28, 35 and 42 days old mortality and productive efficiency index showed difference (p<0.05) between the types of diets. Conclusions. The type of diet and growth promoter did not affect production variables, however, the viability improvement animal diets.

Effect of Probiotics on Broilers Performance

International Journal of Poultry Science, 2006

A probiotic is a live microbial feed supplement, which beneficially affects the host animal by improving its intestinal balance. It has been used as a substitute of antibiotics that is being used in considerable amounts as growth promoters in broilers production and is, associated with incalculable risks for human health resulting from the use of particular feed additives. This article reviews the scientific data showing that probiotics may positively affect various physiologic functions in ways that will permit them now or in the future to be classified as functional foods for which health claims (of enhanced production or reduction in disease risk) will be authorized. The article has been prepared under various subheadings including introduction into probiotics, mode of action including immune enhancement, growth stimulation, feed conversion ratio, competition for adhesion receptors, digestion and absorption and health management of diseased animals. The authors own results have been reviewed including: i) poultry growth is promoted with the increasing doses of probiotics up to a certain limit. The growth pattern increased relative to the control, up to 1.0 gram per 10 kg feed but beyond that the pattern was reversed; ii) no difference could be detected in feed conversion ratio of broilers as compared to control; iii) crypt cells proliferation of small intestine increased with the use of probiotics as compared to control. Present/future aspect of probiotics, is the last component of the article including; discovery of more probiotic organisms through genetic engineering.

EFFECT OF DIETARY SUPPLEMENTATION OF MULTI-STRAIN PROBIOTIC ON BROILER GROWTH PERFORMANCE

The effects of a multi-strain probiotic (protexin) on broiler growth performance, carcass parameters and economic efficiency were studied. For this purpose, 270 day-old broiler chicks were randomly divided into three experimental groups A, B and C, with 90 chicks in each group having three replicates. Group A was fed commercial broiler diet without supplementation of protexin (control) and groups B and C were fed diets containing protexin 100 and 110g/t in starter and 50 and 55 g/t in finisher diets, respectively. Feed and water were offered ad libitum. The results showed that weight gain and feed conversion ratio were significantly (p<0.05) improved in chicks fed on protexin-supplemented diets compared to control diets. Weight gain of the chicks fed on diet C was significantly (p<0.05) better than chicks on diet B. Feed conversion ratio was non-significantly different in both the protexin-supplemented groups. Differences in feed intake, meat composition, dressing percentage and empty organ weights among all the diets were nonsignificant. However, abdominal fat content was reduced significantly (P<0.05) in supplemented groups. The study suggests that protexin supplementation is beneficial for better weight gains, feed efficiency and economic efficiency in broiler chicks.

Supplementation of probiotic and prebiotic on the performance of broilers

IOP Conference Series: Earth and Environmental Science, 2018

The purpose of this research was to study the effect of probiotic-prebiotic on the performance of broiler. Two hundred one day broiler age were used in this study for 35 days. The chickens were randomly divided into five treatments, each treatment consists of four replications and each repetition consist of ten chickens. This research using completely randomized design, such as: T0: control, T1: probiotic 0.2% + prebiotic 0.2%, T2: probiotic 0.4% + prebiotic 0.2%, and T3: probiotic 0.2% + prebiotic 0.4%. The treatments started at 10 day-old chick. The parameters of research were feed consumption, body weight, and feed conversion. The results of significant analysis continued by Duncan's New Multiple Range Test. Two-hundred day old chicks divided into four treatments, each treatment has five replications, and every treatment has 10 chickens. The result showed supplementation probiotic 0,4% and prebiotic 0,2% increased body weight and decreased feed conversion (P<0.05) and had no significant difference in feed consumption.

Effect of supplementation of probiotic on the growth performance of broiler chicken

Indian journal of poultry science, 2005

The effects of different levels of probiotic (Lactobacillus acidophilus, Streptococcus faecium and Yeasacc 1026) supplementation on the performance of broiler chicken were evaluated using 144, one-day old, commercial broiler chicks for a period of eight weeks. The birds were divided into three dietary treatment groups viz., standard broiler ration and standard broiler ration with 0.025 and 0.05 per cent probiotic having four replicates of twelve chicks each. Body weight, body weight gain, feed intake, feed efficiency and protein efficiency were studied upto eight weeks of age. The 0.025 per cent probiotic supplemented birds showed a significantly higher (P<0.05) body weight and weight gain upto six weeks of age. The feed intake, feed efficiency and protein efficiency were statistically non-significant at sixth and eighth weeks of age among the treatment groups. The mortality percentage was not affected by treatments. Cost of production of broilers was lower in the 0.025 and 0.05 ...

Feasibility of Probiotics Supplementation in Caged Broilers

Journal of experimental agriculture international, 2024

As part of the Sam Higginbottom University of Agriculture, Technology and Sciences in Prayagraj, this experiment was carried out at the Small Animal Lab which is part of the research unit. We investigated the "economic cost of including probiotics in the feed of caged broilers". We used a total of 96 day-old chicks and were randomly assigned four groups of 24 chicks (T0, T1, T2, and T3) and eight replicates each, these groups. T0 control group was fed the (BD), T1 was fed Bacillus coagulans at 40 ppm in BD, T2 was fed B. subtilis at 50 ppm in BD, and T3 was fed B. licheniformis and B. coagulans 20 ppm in BD. After a 35-days trial period, an analysis of the economic effects of the probiotics supplementation was calculated. The results revealed a decrease in FCR as birds achieved more weight, leading to increased body weight and resulting in a higher price per kg. Adding probiotics to the feed doesn't increase the variable cost than the control group. It was found Original Research Article

The dynamics of probiotics on growth performance and immune response in broilers

2004

The research work was conducted on "Hubbard Isa Starbro" broilers to evaluate the dynamics of probiotics relating to live weight gain, carcass yield, weight of cut up meat parts and immune response. Day old broiler chicks were divided into four groups as group A (Vaccinated probiotics fed group), B (Nonvaccinated probiotics fed group), C (Vaccinated conventional fed group) and D (Nonvaccinated conventional fed group). Groups C and D were taken as control birds fed with commercial ration and groups A and B as experimental birds were fed with commercial ration with the addition of 2gm probiotics (Protexin ® Boost)/10 litres drinking water upto 6 week of age. The result evidenced the following information: (a) The th live weight gains obtained were significantly (p<0.01) higher in experimental birds as compared to control ones at all levels during the period of 2 , 4 , 5 and 6 weeks of age, both in vaccinated and nonvaccinated nd th th th birds. (b) A significantly (p<0.01) higher carcass yield occurred in broiler chicks fed with the probiotics on the 2 , 4 and 6 week of age both in vaccinated and nonvaccinated birds. The weight of leg was found nd th th significantly (p<0.01) greater for experimental birds as compared to control ones on the 2 , 4 and 6 week nd th th of age. A significantly (p<0.01) higher breast weight in broiler chicks fed with the probiotics was observed on the 4 and 6 week of age. Analogously a significantly (p<0.05) higher breast portion weight was found in th th experimental birds as compared to control ones during 2 week of age. (c) The antibody production was nd found significantly (p<0.01) higher in experimental birds as compared to control ones. Significant differences were also observed in the weight of spleen and bursa due to probiotics supplementation. The results of the study thus revealed that probiotics supplementation promoted significant influence on live weight gain, high carcass yield, prominent cut up meat parts and immune response.

Influence of a probiotic on broiler performance

Revista Brasileira de Zootecnia, 2011

The objective of the present study was to evaluate the influence of a probiotic product (composition: Lactobacillus acidophillus (3.5 × 10 11 CFU), Streptcoccus faecium (3.5 × 10 11 CFU) and Bifidobacterium bifidum (3.5 × 10 11 CFU)) on broiler performance. A total of 1200 one-day-old broilers were reared until 42 days of age, and distributed in a completely randomized experimental design with 3 treatments (antibiotic, probiotic and control) with 10 replicates of 40 birds each. Weight gain, feed intake, feed conversion ratio and mortality were evaluated. Concerning weight gain, in the periods of 0-7 and 0-14 days of age, the group fed the antibiotic product presented higher values as compared with the other treatments. However, in the periods of 0-21, 0-28 and 0-35 days of age, birds fed the antibiotic presented higher weight gain only in relation to the control group. Feed intake differences were detected only in the initial period of 0-7 days of age, with the group fed the antibiotic product presenting higher feed intake as compared with that fed the probiotic product, although these groups were not different from the control group. No statistical difference was detected in feed conversion ratio among treatments in any of the evaluated age intervals. Mortality was different only in the period of 0-14 days of age, which was higher in the control group as compared with that of the birds fed the probiotic product, but it was not different from the group receiving the antibiotic. Treatment with probiotic product containing Lactobacillus acidophillus, Streptococcus faecium and Bifidobacterium bifidum does not affect broiler performance.