scholarly journals The efficacy of selected feed additives in the prevention of broiler chicken coccidiosis under natural exposure to Eimeria spp

2015 ◽  
Vol 15 (3) ◽  
pp. 725-735 ◽  
Author(s):  
Anna Arczewska-Włosek ◽  
Sylwester Świątkiewicz
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Negative Control ◽  
Feed Additives ◽  
Herbal Extract ◽  
Thymus Vulgaris ◽  
Performance Parameters ◽  
Mannan Oligosaccharide ◽  
Natural Exposure ◽  
Eimeria Spp

Abstract The aim of this study was to investigate, under conditions similar to commercial broiler production, the effect of the herbal extract blend (HE) at a quantity of 1 g per kg feed (200 mg of each herbal extract, Allium sativum, Salvia officinalis, Echinacea purpurea, Thymus vulgaris and Origanum vulgare), used individually or in combination with mannan oligosaccharide (MOS; 1 g per kg feed) or chitosan (3 ml containing 2% deacetylated chitin per kg feed) on the performance parameters of broiler chickens, the results of the slaughter analysis, litter moisture and the number of oocysts excreted in feces. The experiment was conducted on 4,500 broiler chickens of both sexes kept in straw-bedded pens. Chickens were randomly assigned to 5 experimental treatments with 5 replicates (pens) of 180 birds. The experimental design included negative and positive (diclazuril, 1 mg per kg feed) control groups. The examined herbal extract blend used individually during natural exposure to the coccidia improved, compared to the negative control diet, the performance parameters to a greater extent than coccidiostat, lowered the litter moisture content and reduced the oocyst output. Combined dietary supplementation with a herbal extract blend of chitosan or mannan oligosaccharide did not result in further improvement.

Effect of yeast based mannan oligosaccharide (Actigen™) supplementation on growth, carcass characteristics and physiological response in broiler chickens

2018 ◽  
Author(s):  
M. Waqas ◽  
S. Mehmood ◽  
A. Mahmud ◽  
Saima . ◽  
J. Hussain ◽  
...  
Keyword(s):  
Antibody Response ◽  
Broiler Chickens ◽  
Control Diet ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Mannan Oligosaccharide ◽  
Treatment Groups ◽  
Blood Biochemical ◽  
Randomized Design ◽  
Completely Randomized Design

The effect of a prebiotic mannan oligosaccharides (Actigen™) supplementation for 35 days was analyzed on growth, carcass traits and blood physiology of broilers. A total of 360-day-old broilers distributed under completely randomized design into four treatment groups with 24 replicates of 15 birds each was fed with Actigen™ supplemented diets @ 0.2, 0.4 and 0.6 g/Kg and a control diet. Data for growth performance were collected weekly while slaughtering data at 35th day. Results showed that the birds fed with Actigen™ added diet @ 0.6 g/Kg exhibited improved livability% (98.88±1.11), feed intake (3391.68±38.70 g), body weight (2157.66±31.52 g), weight gain (2111.49±30.89 g), FCR (1.57±0.03), dressing% (72.28±0.40), breast yield% (29.58±0.05), thigh yield% (31.61±0.30) and blood biochemical parameters. Superior (P£0.05) antibody response against ND and IB were recorded in birds exposed to Actigen™ supplemented diet @ 0.6 g/Kg. It was concluded that Actigen™ supplementation @ 0.6 g/Kg corroborated to improve growth, carcass traits, blood biochemistry and antibody response in broilers.

scholarly journals Study influence of Salinomycin and Anticoccidial Vaccine on Pathological changes in intestine of Broiler Chickens experimental infected with Eimeria spp.

2008 ◽  
Vol 32 (2) ◽  
pp. 147-158
Author(s):  
Dalia Ahmed Kalef
Keyword(s):  
Broiler Chickens ◽  
Treated Group ◽  
Negative Control ◽  
Control Group ◽  
High Dose ◽  
Broiler Chicks ◽  
Pathological Changes ◽  
Endothelial Layer ◽  
Eimeria Spp ◽  
Epithelial Layers

To conduct the influence of salinomycin & anticoccidial vaccine onpathological changes in intestine of broiler chickens experimentalinfected with Eimeria spp. By using 40 broiler chicks divided randomlyto four groups( 10 chicks of each group ) First group vaccinated withanticoccidial vaccine (coccivac) at 8 days of age in drinking water whilethe second group feeded salinomycin in concentration 60ppm from oneday old ,the third group left non vaccinated nor given salinomycin as acontrol group at(26 days )of age chicks in that three groups infected withdifferent species of Eimeria spp .with high dose (744x74³) Oocyst /chickby group inoculation & the fourth group consider negative control notvaccinated or treated .At (33 days)of chicks age all the chicks were killedfor measuring lesion score of intestine which their results +1.75 , +3, +4with mortality rate 0%,10%,20% for vaccinated ,salinomycine treated &control groups respectively then took samples for Histopathologicalchanges the results pointed high pathological changes in intestine ofpositive control group with sever necrosis & degeneration of epitheliawith sever tissue damage companied with maturation first & secondgeneration sporozoite in the endothelial layer of intestine. While thepathological changes was less sever in salinomycine treated group withnecrosis & degeneration of epithelial layers accompanied with exist ofsporozoite in endothelial layer of intestine . while the vaccinated groupshowed no clear pathological changes in intestine except hyperplasia ofglobal cells & infiltration of lymphocytes cells in the layers of intestine ,it was concluded that the vaccine which was given to chicks provide goodprotection & decrease dangerous of coccidiosis infection .

scholarly journals Meat Productivity of the Ross 308 - Cross Roosters by the Adding in to a Diet of Organic Acids and their Salts

2021 ◽  
Vol 937 (3) ◽  
pp. 032007
Author(s):  
Kristina Lavrinenko ◽  
Ivan Koshchaev ◽  
Antonina Ryadinskaya ◽  
Sergey Chuev ◽  
Nadezhda Sorokina
Keyword(s):  
Organic Acids ◽  
Broiler Chickens ◽  
Control Diet ◽  
Feed Additives ◽  
The Body ◽  
Standard Diet ◽  
Slaughter Performance ◽  
Meat Productivity ◽  
Feeding Diets ◽  
Poultry Farming

Abstract The article presents the results of studies conducted on the inclusion of Presan and Selko pH feed additives produced on the basis of organic acids in the feeding diets of Ross-308 cross broiler chickens. Organic acids and their salts are used in poultry farming as an alternative to feed antibiotics, and also has the ability to prevent the development of intestinal bacterial infection, increase the resistance of the body, thereby improving the absorption of feed nutrients and increasing poultry productivity. The largest preslaughter weight was in the groups of cockerels getting the T6 diet without antibiotics adding, which is 1.92% more than the groups getting the T1-control diet. In addition, the output of the pectoral and femoral muscles was higher by chickens getting a T6 diet by 0.5 and 0.3%, in contrast to groups getting a standard diet. Thus, it has been experimentally proven that the tested feed additives Presan and Selko pH do not reduce the slaughter performance of broilers.

scholarly journals Effect of supplementation with Escherichia coli phytase for broilers on performance, nutrient digestibility, minerals in the tibia and diet cost

2019 ◽  
Vol 40 (2) ◽  
pp. 767
Author(s):  
Gabriel Villela Dessimoni ◽  
Nilva Kazue Sakomura ◽  
Daniella Carolina Zanardo Donato ◽  
Fábio Goldflus ◽  
Nayara Tavares Ferreira ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Control Diet ◽  
Positive Control ◽  
Negative Control ◽  
Nutrient Digestibility ◽  
Conversion Ratio ◽  
Feed Conversion ◽  
Diet Cost

Although phytase has been researched, new enzymes have been produced, leading to different animal responses. In this scenario, the present study proposes to evaluate the inclusion of a bacterial phytase produced by Escherichia coli in broiler diets based on corn and soybean meal, with or without nutrient reductions, on the performance, nutrient digestibility, phosphorus bioavailability, and bone minerals of those animals and on the economic viability of this practice. A total of 896 male broiler chickens were distributed into 32 experimental units, each housing 28 broilers. The experiment was set up as a completely randomized design with four treatments (Positive Control (PC)- diet meeting the nutritional requirements of the broiler chickens; Negative Control (NC) with reductions of 100kcal/kg of ME, 0.14% avP and 0.11% tCa; NC + phytase (500 FTU/kg); PC + phytase (500FTU/kg)) and 8 replicates. Phytase increased (p < 0.05) feed intake and body weight gain and improved feed conversion ratio in starter (1 to 21 days) and total (1 to 42 days) phases, respectively, compared with Negative Control diet without supplementation. The Negative Control + phytase diet also led to a feed intake similar to Positive Control in the starter and total phases. The inclusion of phytase without nutrient reductions improved (p < 0.05) feed conversion ratio in the starter phase, compared to Positive Control diet. There was an increase (p < 0.05) in the digestibility of dry matter, crude protein and phosphorus and in apparent digestible energy in the Negative Control + phytase diet compared to the Negative Control diet. Phytase supplementation increased (p < 0.05) the digestibility of crude protein, calcium and phosphorus, and apparent digestible energy compared to Positive Control diet. Ash, phosphorus, and calcium contents were higher in the Negative Control + phytase diet compared with those observed in the Negative Control diet without enzyme (p < 0.05). The Positive Control + phytase diet provided higher ash contents (p < 0.05), but calcium and phosphorus deposition was similar to those obtained with Positive Control diet. Phytase inclusion allows for a reduction in the diet cost per ton of produced feed. In conclusion, dietary supplementation with bacterial phytase produced from Escherichia coli for broiler chickens is recommended, as it provided increases in production performance, nutrient digestibility, and energy metabolizability and a reduction in the diet cost.

scholarly journals Effects of supplemental microbial phytase on performance of broiler chickens

1994 ◽  
Vol 3 (5) ◽  
pp. 457-466
Author(s):  
Tuomo Koskinen ◽  
Jari Piironen ◽  
Tiina Hakonen
Keyword(s):  
Broiler Chickens ◽  
Bone Mineralization ◽  
Control Diet ◽  
Live Weight ◽  
Positive Control ◽  
Negative Control ◽  
Phytase Activity ◽  
Broiler Chicks ◽  
Microbial Phytase ◽  
Soya Bean Meal

Three trials were conducted on a total of 5100 broiler chicks (0-5.5 weeks) to study the effects of different microbial phytase (Aspergillus niger) supplementations (250-1000 phytase units = PU/g) on the performance and bone mineralization of birds and on the utilization of phosphorus compared with the effects of mineral P additions as dicalcium phosphate. The basal diets (negative controls) were principally composed of soya bean meal (SBM) and grain (wheat, barley, oats) supplemented with up to 0.10% mineral P; the positive control diets were supplemented with 0.24-0.30% mineral P. Compared with the negative control groups, which were fed diets with 0.05% mineral P either during the whole rearing period or during the starting period only, phytase addition increased live weight by 4-7% and feed intake by 3-9% (Trials 1 and 2). Tibia values indicated that with low mineral P supplementations (0.05 and 0.10%), phytase additions have a non-significant effect on bone mineralization. If mineral P is not added, the tibia values show a marked response to phytase (Trial 3). Utilization of P increased from 50.9% to 60.0% when phytase (1000 PU/g) was added to the diets without mineral P supplementation (Trial 3). Utilization of P was only 34.5% in the positive control diet (0.3% mineral P). The results were obviously affected by the intrinsic phytase activity in grain and the dietary calcium level, and suggest that, in SBM-grain-based diets with very low (0.05%) or no mineral P supplementation, weight gain can be increased by adding phytase up to 1000 PU/g. This supplemented phytase activity is apparently sufficient for adequate bone mineralization.

scholarly journals Dietary supplementation of mannan-oligosaccharide enhances neonatal immune responses in chickens during natural exposure to Eimeria spp

2009 ◽  
Vol 51 (1) ◽  
pp. 11 ◽  
Author(s):  
Gabriela Gomez-Verduzco ◽  
Arturo Cortes-Cuevas ◽  
Carlos Lopez-Coello ◽  
Ernesto Avila-Gonzalez ◽  
Gerardo M Nava
Keyword(s):  
Immune Responses ◽  
Dietary Supplementation ◽  
Mannan Oligosaccharide ◽  
Natural Exposure ◽  
Eimeria Spp

scholarly journals Effect of Thyme Essential Oil Supplementation on Thymol Content in Blood Plasma, Liver, Kidney and Muscle in Broiler Chickens

2016 ◽  
Vol 11 (10) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Vladimíra Ocel'ová ◽  
Remigius Chizzola ◽  
Jana Pisarčíková ◽  
Johannes Novak ◽  
Oksana Ivanišinová ◽  
...  
Keyword(s):  
Essential Oil ◽  
Muscle Tissue ◽  
Broiler Chickens ◽  
Solid Phase ◽  
Kidney Tissue ◽  
Feed Additives ◽  
Breast Muscle ◽  
Feed Additive ◽  
Gas Chromatography Mass Spectrometry ◽  
Thymus Vulgaris

The absorption and metabolism of phytogenic feed additives in poultry is studied related to the metabolism and deposition of their main compounds in tissues intended for food production. Fifty-six non-sexed Ross 308 broilers were allocated to seven dietary treatments and fed a diet containing graded levels of thyme ( Thymus vulgaris L.) essential oil (EO) (0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.1%, w/w). Thymol concentration was measured in plasma, liver, kidney and breast muscle tissue using solid phase micro-extraction followed by gas chromatography/mass spectrometry. We found the highest concentrations of thymol in kidney and plasma, and the lowest in breast muscle and liver. Thymol content in plasma and kidney significantly increased when 0.05 and 0.1%, w/w, EO and in liver and breast muscle only when 0.1%, w/w, EO was added to the diet ( p<0.05). Our results indicate intensive metabolism of thymol in liver and its accumulation in kidney tissue. We confirm low deposition of thymol in the muscle tissue. It is necessary to keep in mind the selection of a sufficient concentration of EO in the feed additive for animals without the risk of thymol residues in edible tissues.

scholarly journals Performance and physiological parameters in broilers fed different enzyme complexes

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2765
Author(s):  
Thiago Dos Santos Andrade ◽  
Ricardo Vianna Nunes ◽  
Idiana Mara da Silva ◽  
Lucas Wachholz ◽  
Vitor Barbosa Fascina
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Abdominal Fat ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Blood Profile ◽  
Carcass Yield ◽  
Protease Enzyme

The effects of enzyme supplementation on the performance, yield, and blood profile of broilers fed corn and soybean diets from 1 to 42 days of age were evaluated. A total of 960 male broilers were used, distributed in a completely randomized design, with six treatments and eight replications. Two diets were used: a positive control formulated to meet the birds’ nutritional requirements (Diet 1) and a negative control diet with reduction of 150 kcal.kg-1 of metabolizable energy (Diet 2) and 12% amino acid in the initial phase and 18% during the growing and finishing phases. Further diets were based on the negative control with enzymes: enzyme complex 1, composed of 125 g ton-1 protease; enzyme complex 2, composed of 100 g ton-1 amylase, protease, and xylanase; enzyme complex 3, composed of 500 g ton-1 amylase, protease, and xylanase; and enzyme complex 4, composed of 125 g ton-1 protease and 500 g ton-1 beta-mannanase. Enzymatic supplementation did not improve performance during the initial and growing phases due to nutritional imbalance, resulting in the worst weight gain and feed conversion during the finishing phase. Carcass yield, leg yield, abdominal fat, and pancreas were altered by enzymatic supplementation. Triglyceride levels influenced abdominal fat deposition, and the serum levels of albumin and alanine aminotransferase were altered by enzymatic supplementation. Enzymatic supplementation was not effective in restoring broiler performance, carcass yield, and cuts, with changes in the serum biochemical profile of the broiler chickens.

scholarly journals Influence of dietary lanthanum oxide (La O ) on the blood characteristics and 2 3 ovarian morphometry of broiler chickens

2020 ◽  
Vol 46 (2) ◽  
pp. 40-46
Author(s):  
P. O. Ozung ◽  
O. O. K. Oko ◽  
A. J. Henry ◽  
N. P. Jimmy ◽  
P. O. Eburu ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Lanthanum Oxide ◽  
Positive Control ◽  
Negative Control ◽  
Feed Additives ◽  
Health Concern ◽  
Broiler Chicks ◽  
Serum Biochemical ◽  
Blood Characteristics ◽  
Dietary Treatments

The use of antibiotics as feed additives in animal production has been a source of health concern. A practical approach is the supplementation of animal feeds with rare earth element. Thus, this study was carried out with 225 day – old broiler chicks (CHI strain) to evaluate the influence of dietary Lanthanum oxide (La O ) on the blood characteristics and 2 3 ovarian morphometry. The feeding trial lasted eight weeks before the parameters were determined. The dietary treatments were designated as T , T , T , T and T . The T served as 1 2 3 4 5 1 the negative control without La O while T was the positive control with antibiotic. La O was 2 3 2 2 3 supplemented to T , T , T , and T at 100, 200 and 300 ppm, respectively. The birds were 3 4 3 5 divided into five groups of 45 each and randomly assigned to the five experimental diets using a completely randomized design (CRD). Each treatment was further divided into three replicates of fifteen (15) birds each and reared in a brooding unit and later on a deep litter house. Feed and water were provided ad-libitum. Results showed that the haematologicalparameters were not significantly (P>0.05) influenced by dietary treatments, except the differential leucocytes (eosinophils, lymphocytes and  neutrophils); while in terms of the serum- biochemical indices, only cholesterol and bi-carbonate contents were significantly (P<0.05) influenced by dietary treatments. The ovarian weight was significantly (P<0.05)influenced by dietary treatments. The results of this study suggest that dietary La O up to 300 2 3 ppm will not adversely affect the blood (haematological and serum biochemical) characteristics and ovarian morphometry of broiler chickens.

Sign in / Sign up

Export Citation Format

Share Document