scholarly journals The frequency of respiratory diseases in broiler chickens during 1992-2001

2017 ◽  
Vol 56 (3) ◽  
pp. 219 ◽  
Author(s):  
J. GEORGOPOULOU (Ι. ΓΕΩΡΓΟΠΟΥΛΟΥ) ◽  
P. IORDANIDIS (Π. ΙΟΡΔΑΝΙΔΗΣ) ◽  
P. BOUGIOUKLIS (Π. ΜΠΟΥΠΟΥΚΛΗΣ)
Keyword(s):  
Respiratory Disease ◽  
Broiler Chickens ◽  
Respiratory Diseases ◽  
Chicken Anemia Virus ◽  
Economic Losses ◽  
Poultry Industry ◽  
Salmonella Spp ◽  
Vaccination Programs ◽  
Poultry Houses ◽  
Mycoplasma Spp

The respiratory diseases of broiler chickens are included among the very important problems in the poultry industry. The pathogenic causes of these diseases are viruses (NDV, IBV, ILTV, etc), bacteria (Mycoplasma spp, Haemophilus paragallinarum, E.coli, ORT, etc), fungi and parasites. These factors can act either alone, leading in complete disease or in combinations, causing respiratory syndromes. In broiler flocks the most frequent respiratory disease with considerable economic losses is Colibacillosis. It is either the result of primary infection of the birds with the pathogenic E.coli or secondary as complicated agent leading in the CDR syndrome. The evaluation of the respiratory diseases incidents in the Clinic of Avian Medicine showed that there has been a gradual decline in the number of the respiratory diseases during the last decade 1992 - 2001. More specifically, the percentages of the incidents of respiratory diseases were: 26,49% (1992), 22,14% (1993), 17,24% (1994), 18,00% (1995), 10,04% (1996), 9,93% (1997), 11,92% (1998), 7,79% (1999), 7,77% (2000) and 6,99% (2001). This significant reduction of the respiratory disease percentages was probably caused by factors relative with a series of measures applied in breeder flocks, in hatcheries and in poultry houses. These measures concern the continuous improvement of the poultry houses and equipment, the application of systematic vaccination programs in breeders and chicks, the good collaboration between farmers and veterinarians, the improvement of nutrition, the supplying of chicks free of bacteria, such as Mycoplasma spp, Salmonella spp, etc, and viruses, such as Reovirus, Chicken anemia virus, e.t.c, and the strict application of appropriate disinfections. The application of the above measures reduces the poultry stress, enhances their immunity, eliminates the presence and the spread of pathogens and secures better health and growth in the birds of the poultry industry. Keywords: Respiratory diseases, broilers, incidents' frequency, decade 1992-2001

scholarly journals Concurrent Respiratory Disease in Broiler Chickens in Egypt during 2020

2021 ◽  
Vol 11 (3) ◽  
pp. 384-394
Author(s):  
Nahed Yehia ◽  
Fatma Amer ◽  
Abdelhafez Samir ◽  
Mohamed Samy ◽  
Ahmed Sedeek ◽  
...  
Keyword(s):  
Respiratory Disease ◽  
Broiler Chickens ◽  
Respiratory Diseases ◽  
Antigenic Site ◽  
Economic Losses ◽  
Single Infection ◽  
Poultry Production ◽  
Receptor Binding Site ◽  
Ha Gene ◽  
Group B

Poultry production has been affected by multiple respiratory diseases triggering serious economic losses in Egypt. The current study aimed to investigate the situation and genetic evolution of respiratory diseases in Egypt during 2020. A total of 53 samples were collected from infected flocks suffering from respiratory signs and variable mortality rates from nine governorates in Egypt during 2020. The collected samples were examined for the detection of respiratory disease viruses (Avian influenza virus (AIV (H5N8, H9N2), Infectious bronchitis virus (IBV), and Newcastle disease virus (NDV)) by rRT-PCR. The single infection was confirmed in 90.6% (37.7% I.B, 30.2% AIV (H5N8), 9.4% I.B and 5.7% NDV) and co-infection of HPAIV (H5N8) + I.BV and LPAIV (H9N2) +IBV were detected in 3.8% of nine governorates. The HA gene of HPAIV (H5N8) was cluster to clad 2.3.4.4.1b in a new branch with characteristic specific mutations especially in T140A in antigenic site A and R72S in the receptor-binding site, compared to A/duck/Egypt/F446/2017 with low A.A identity percent with vaccinal strains of H5N1 and H5N2 reaching to 91.9-94% and 84.6%, respectively. The HA gene of AIV (H9N2) belonged to A/quail/Hong Kong/G1/97-like virus clustered with group B with a specific mutation (212I) that may affect the human transmission of the virus. The HVRs of S1 gene of IBV cluster to GI23 (Egy Var I) clad with multiple mutations in HVR1 and HVR2, compared to IBV/CU/4/2014 and low identity percent (68.3-78.8%) with vaccine strains (H120, M41, 4/91). In conclusion, respiratory disease continues to circulate and rapidly evolve in Egypt during 2020.

scholarly journals An In Vitro Antibacterial Activity Test of Meniran Herbs’(Phyllanthus Niruri L.) Ethanol ExtractAgainst Mycoplasma gallisepticum causes Chronic Respiratory Disease (CRD) in Broiler Chickens

2017 ◽  
Vol 3 (6) ◽  
pp. 48 ◽  
Author(s):  
Emy Koestanti Sabdoningrum ◽  
Sri Hidanah ◽  
Retno Sri Wahjuni ◽  
Sri Chusniati ◽  
Arimbi Arimbi
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Respiratory Disease ◽  
Broiler Chickens ◽  
Inhibitory Concentration ◽  
Mycoplasma Gallisepticum ◽  
Chronic Respiratory Disease ◽  
Economic Losses ◽  
Dilution Method ◽  
Phyllanthus Niruri

Chronic Respiratory Disease (CRD) is a chicken respiratory disease that attacks both broilers and layers. Chronic Respiratory Disease (CRD) has important economic significance in the intensification of chicken farms because this disease can cause huge economic losses. Meniran plant (Phyllanthus niruri Linn) is one of the plants that can be used as prevention and alternative treatment as a substitute of antibiotic caused by Mycoplasma galisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. The chemicals contained in meniran include tannins, saponins, alkaloids as antibacterials. The purpose of this study is to determine the activity of meniran herbs’ (Phyllanthus Niruri Linn) as antibacterial to eradicate Mycoplasma galisepticum. The method of this study is dilution method which included Minimum Inhibitory Concentration [MIC) and Minimum Bactericidal Concentration (MBC). Minimum Inhibitory Concentration [MIC) was taken by making the concentration of meniran extract as much 65%, 62,5%; 60%; 55%; 50%; 45%; 40%. It was then added Mycoplasma gallisepticum bacteria. The result of this study is Meniran’s activation test on Mycoplasma galisepticum obtained a dose of 62,5% could eradicate Mycoplasma galisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. Meniran herbs’ (Phyllanthus niruri linn) is effective as antibacterial at concentrations of 30% against Mycoplasma gallisepticum causes Chronic Respiratory Disease (CRD) in broiler chickens. Keywords: Meniran herbs’ (Phyllanthus Niruri Linn), Mycoplasma Galisepticum, Chronic Respiratory Disease (CRD)

scholarly journals Near-Complete Genome Sequence of GI-17 Lineage Infectious Bronchitis Virus, Circulating in Iowa

2021 ◽  
Vol 10 (20) ◽  
Author(s):  
Amro Hashish ◽  
Yuko Sato ◽  
Ganwu Li ◽  
Ying Zheng ◽  
Phillip C. Gauger ◽  
...  
Keyword(s):  
Respiratory Disease ◽  
Genome Sequence ◽  
Causative Agent ◽  
Infectious Bronchitis Virus ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Economic Losses ◽  
Avian Infectious Bronchitis Virus ◽  
Poultry Industry ◽  
Infectious Bronchitis

ABSTRACT Avian infectious bronchitis virus (AvIBV) is the causative agent of a highly contagious respiratory disease in chickens which results in significant economic losses in the poultry industry. Here, we report a near-complete genome sequence of the strain, designated IA1162/2020, identified in tracheal swabs from chickens in Iowa in 2020.

scholarly journals EPIZOOTIOLOGICAL IMPORTANCE OF SALMONELLA SPP. ISOLATED IN VARIOUS ASPECTS OF POULTRY PRODUCTION IN THE SOUTHERN BAČKA AND SREM REGION

2016 ◽  
Vol 8 (1) ◽  
pp. 67-76
Author(s):  
Marko Pajić ◽  
Dalibor Todorović ◽  
Maja Velhner ◽  
Dubravka Milanov ◽  
Vladimir Polaček ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Salmonella Enteritidis ◽  
Horizontal Transmission ◽  
Significant Risk ◽  
Economic Losses ◽  
Poultry Production ◽  
Salmonella Spp ◽  
Increasing Trend ◽  
Systemic Infections ◽  
Research Period

Salmonella causes local and systemic infections of poultry, which may lead to substantial direct and indirect economic losses, presenting also significant risk to human health. Th e aim of this study was to monitor the occurrence of certain serotypes of Salmonella spp. isolated on poultry farmsin Southern Bačka and Srem regions in the period from 2010 to 2014, as recommended by the Book of rules of early detection, diagnostic, prevention of spreading and eradication of Salmonella spp. We analyzed the results obtained from the laboratory for clinical bacteriology to determine number of salmonella cases. From all samples that have been submitted for bacteriology analysis, salmonellas were isolated from 7.3% samples. Salmonella infantis was isolated from 50.3% of all salmonella-positive samples, mostly from materials supplied from broiler farms. Salmonella enteritidis was most frequently isolated in broiler chickens at the rate of 48.2%. Th ere is an increasing trend in the occurrence of Salmonella enteritidis and Salmonella infantis on poultry farms from year to year. Our research revealed the highest incidence of salmonella isolates in broilers that died during transportation or within the fi rst three days upon arrival of chickens. During the five-year research period, 65 samples from parent fl ocks (63 from broiler breeders and 2 from parent fl ocks of layers) were salmonella positive, which makes 8.03% of all positive isolates. It is most likely that salmonella infection occurs due to infection of parent flocks and young chickens are infected trough both vertical and horizontal transmission.

scholarly journals Implementation of Meniran Extract (Phyllanthus Niruri Linn) on the Performance of Broiler Chickens Infected by Mycoplasma gallisepticum Caused Chronic Respiratory Disease

2017 ◽  
Vol 3 (6) ◽  
pp. 296
Author(s):  
Sri Hidanah ◽  
Emy Koestanti Sabdoningrum ◽  
Retno Sri Wahjuni ◽  
Arimbi Arimbi
Keyword(s):  
Respiratory Disease ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Mycoplasma Gallisepticum ◽  
Chronic Respiratory Disease ◽  
Economic Losses ◽  
Feed Conversion ◽  
Inhibit Protein Synthesis ◽  
Phyllanthus Niruri ◽  
The World

Chronic respiratory disease (CRD) of chicken is a disease that has great economic losses in poultry industry in the world. The losses are mainly due to the decrease of body weight gain, feed efficiencies, hatchabilities and increase conversion of the feed, of embryo mortality. The main causative agent of Chronic Respiratory Disease (CRD) is Mycoplasma gallisepticum. Mycoplasma gallisepticum attacks the respiratory tract, especially in young broiler chickens with age ranged 3-5 weeks. CRD treatment usually uses macrolide antibiotics, because it has proven effective to inhibit protein synthesis. However, it is not recommended to continuously given because the chicken can be resistant to the medicineand leave a harmful reside to consumers. The development of herbal medicine utilization currently is mostly implemented for the treatment of diseases that infected livestock. Meniran plants (Phyllanthus niruri Linn) is one of the plants that can be used as prevention and alternative treatment caused by Chronic Respiratory Disease (CRD). Meniran (Phyllanthus niruri Linn) has the content of bioactive compounds that have antibacterial activity, including terpenoids,alkaloids, flavonoids, saponins, and tannins. The purpose of this study is to test and evaluate the effectiveness of Meniran extract (Phyllanthus Niruri Linn) on the performance of broiler chickens infected by Chronic Respiratory Disease (CRD), seen from the feed conversion.Keywords: Meniran, Mycoplasma galisepticum, Chronic Respiratory Disease (CRD), performance of Broiler Chickens, Feed Conversion

Therapeutic role of vegetables in Respiratory Diseases – A critical review from Ayurvedic classics.

2016 ◽  
Vol 1 (3) ◽  
Author(s):  
Dr. Raghavendra Naik ◽  
Shweta Vekariya ◽  
R. N. Acharya ◽  
Sneha D. Borkar
Keyword(s):  
Clinical Practice ◽  
Respiratory Disease ◽  
Respiratory System ◽  
Critical Review ◽  
Critical Analysis ◽  
Respiratory Diseases ◽  
Unique Contribution ◽  
Pharmacological Activities ◽  
The Family

The concept of Pathya (wholesome diet) is an unique contribution of Ayurveda, which plays an important role in prevention and management of many diseases. “Shakavarga”, a category under dietetics in classical texts of Ayurveda enlisted different vegetables with their properties and indications in different disease conditions. These vegetables can be prescribed as Pathya (wholesome diet) in clinical practice. In the present review, plants described under Shakavarga, indicated as Pathya in different diseases related to Pranavaha Srotas (Respiratory system) were compiled from 15 different Ayurvedic classical texts. Critical analysis of the compiled data reveals that out of 332 vegetables described under Shakavarga, 44 are indicated in respiratory disease like Shvasa (Dyspnoea/Asthma), Kasa (Cough), Peenasa (Chronic rhinitis) and Hikka (Hiccup). Among them, botanical identity of 42 classical plants has been established and maximum number of vegetables belongs to the family cucurbitaceae (10) followed by solanaceae (4). Some of these vegetables have been reported for their various pharmacological activities related to prevention and management of diseases related to Pranavaha Srotas (Respiratory system). These vegetables are reported for their anti-inflammatory (16), antioxidant (14), anti-allergic (6) and antitussive (3) activities. The observed result may be helpful in use of vegetables as Pathya (wholesome diet) and planning further scientific studies about the efficacy of these plants on prevention as well as management of respiratory diseases.

Molecular Detection of Bacterial Pathogens Directly from the Nasal Swabs and Lung Tissue of Sheep and Goats

2019 ◽  
Vol 15 (02) ◽  
pp. 22-25
Author(s):  
Sunaina Thakur ◽  
Subhash Verma ◽  
Prasenjit Dhar ◽  
Mandeep Sharma
Keyword(s):  
Pasteurella Multocida ◽  
Direct Detection ◽  
Bacterial Species ◽  
Economic Losses ◽  
Isolation And Identification ◽  
Sheep And Goats ◽  
Histophilus Somni ◽  
Nasal Swabs ◽  
Mycoplasma Spp

Respiratory infections of sheep and goats cause heavy morbidity and mortality, leading to huge economic losses. Conventional methods of diagnosis that include isolation and identification of incriminating microbes are time-consuming and fraught with logistic challenges. Direct detection of incriminating microbes using molecular tools is gaining popularity in clinical, microbiological settings. In this study, a total of 50 samples (44 nasal swabs and 6 lung tissues) from sheep and goats were screened for the detection of different bacterial species by in vitro amplification of genus or species-specific genes. Histophilus somni was detected in 2% goat samples, Trueperella pyogenes in 20% goat nasal swabs, whereas 22% goat nasal swab samples were found positive for Mycoplasma spp. None of the samples from sheep was detected positive for H. somni, T. pyogenes, Mycoplasma spp. Similarly, all samples, irrespective, whether from sheep or goats, showed negative results for Pasteurella multocida, Mannheimia haemolytica, and Corynebacterium pseudotuberculosis.

scholarly journals Pretreatment with probiotics ameliorate gut health and necrotic enteritis in broiler chickens, a substitute to antibiotics

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Danish Sharafat Rajput ◽  
Dong Zeng ◽  
Abdul Khalique ◽  
Samia Sharafat Rajput ◽  
Hesong Wang ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Production Systems ◽  
Economic Losses ◽  
Necrotic Enteritis ◽  
Poultry Production ◽  
Gut Health ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Antibiotic Growth Promoters ◽  
Microbial Strains

AbstractNecrotic enteritis (NE) is being considered as one of the most important intestinal diseases in the recent poultry production systems, which causes huge economic losses globally. NE is caused by Clostridium perfringens, a pathogenic bacterium, and normal resident of the intestinal microflora of healthy broiler chickens. Gastrointestinal tract (GIT) of broiler chicken is considered as the most integral part of pathogen’s entrance, their production and disease prevention. Interaction between C. perfringens and other pathogens such as Escherichia coli and Salmonella present in the small intestine may contribute to the development of NE in broiler chickens. The antibiotic therapy was used to treat the NE; however European Union has imposed a strict ban due to the negative implications of drug resistance. Moreover, antibiotic growth promoters cause adverse effects on human health as results of withdrawal of antibiotic residues in the chicken meat. After restriction on use of antibiotics, numerous studies have been carried out to investigate the alternatives to antibiotics for controlling NE. Thus, possible alternatives to prevent NE are bio-therapeutic agents (Probiotics), prebiotics, organic acids and essential oils which help in nutrients digestion, immunity enhancement and overall broiler performance. Recently, probiotics are extensively used alternatives to antibiotics for improving host health status and making them efficient in production. The aim of review is to describe a replacement to antibiotics by using different microbial strains as probiotics such as bacteria and yeasts etc. having bacteriostatic properties which inhibit growth of pathogens and neutralize the toxins by different modes of action.

scholarly journals Molecular detection and genetic diversity of Leucocytozoon sabrazesi in chickens in Thailand

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Runglawan Chawengkirttikul ◽  
Witchuta Junsiri ◽  
Amaya Watthanadirek ◽  
Napassorn Poolsawat ◽  
Sutthida Minsakorn ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Egg Production ◽  
Control Strategies ◽  
Amino Acid Sequences ◽  
Economic Losses ◽  
Nested Polymerase Chain Reaction ◽  
Blood Samples ◽  
Tropical Regions ◽  
Vaccination Programs ◽  
High Entropy

AbstractLeucocytozoon sabrazesi is the intracellular protozoa of leucocytozoonosis, which is transmitted by the insect vectors and affects chickens in most subtropical and tropical regions of the globe, except South America, and causing enormous economic losses due to decreasing meat yield and egg production. In this study, L. sabrazesi gametocytes have been observed in the blood smears, and molecular methods have been used to analyse the occurrence and genetic diversity of L. sabrazesi in blood samples from 313 chickens raised in northern, western and southern parts of Thailand. The nested polymerase chain reaction (nested PCR) assay based on the cytb gene revealed that 80.51% (252/313) chickens were positive of L. sabrazesi. The phylogenetic analysis indicated that L. sabrazesi cytb gene is conserved in Thailand, showed 2 clades and 2 subclades with similarity ranged from 89.5 to 100%. The diversity analysis showed 13 and 18 haplotypes of the sequences from Thailand and from other countries, respectively. The entropy analyses of nucleic acid sequences showed 26 high entropy peaks with values ranging from 0.24493 to 1.21056, while those of amino acid sequences exhibited 5 high entropy peaks with values ranging from 0.39267 to 0.97012. The results; therefore, indicate a high molecular occurrence of L. sabrazesi in chicken blood samples with the associated factors that is statistically significant (p < 0.05). Hence, our results could be used to improve the immunodiagnostic methods and to find appropriate preventive control strategies or vaccination programs against leucocytozoonosis in order to mitigate or eliminate the harmful impact of this infection on chicken industry.

scholarly journals Molecular mechanisms of growth depression in broiler chickens (Gallus Gallus domesticus) mediated by immune stress: a hepatic proteome study

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Aijuan Zheng ◽  
Anrong Zhang ◽  
Zhimin Chen ◽  
Shoaib Ahmed Pirzado ◽  
Wenhuan Chang ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Molecular Mechanisms ◽  
Gallus Gallus ◽  
Gallus Domesticus ◽  
Economic Losses ◽  
Poultry Production ◽  
Gallus Gallus Domesticus ◽  
Growth Depression ◽  
Stress Group ◽  
Immune Stress

Abstract Background Immunological stress decreases feed intake, suppresses growth and induces economic losses. However, the underlying molecular mechanism remains unclear. Label-free liquid chromatography and mass spectrometry (LC-MS) proteomics techniques were employed to investigate effects of immune stress on the hepatic proteome changes of Arbor Acres broilers (Gallus Gallus domesticus) challenged with Escherichia coli lipopolysaccharide (LPS). Results Proteomic analysis indicated that 111 proteins were differentially expressed in the liver of broiler chickens from the immune stress group. Of these, 28 proteins were down-regulated, and 83 proteins were up-regulated in the immune stress group. Enrichment analysis showed that immune stress upregulated the expression of hepatic proteins involved in defense function, amino acid catabolism, ion transport, wound healing, and hormone secretion. Furthermore, immune stress increased valine, leucine and isoleucine degradation pathways. Conclusion The data suggests that growth depression of broiler chickens induced by immune stress is triggered by hepatic proteome alterations, and provides a new insight into the mechanism by which immune challenge impairs poultry production.

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