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Bacterial diseases in poultry
Bacterial diseases comprise approximately half of the non–outbreak-related mortality in broiler breeders and commercial layers. During the first week of a broiler's life, approximately 50% of the mortality may be caused due to bacterial infections. Outbreaks due to bacterial infections may increase the mortality dramatically and in some cases almost eradicate flocks. E. coli and Gram-positive cocci infections are responsible for mortality and production losses in poultry of all age groups and all production systems and may be regarded as multifactorial. Subsequently, efforts in understanding and controlling these infections are highly important. Although necrotic enteritis is primarily a disease affecting young chickens, this infection is of major significance in any production system. Besides increased mortality, the production losses observed in subclinical infections may be dramatic.
1. Introduction Past reviews describe recent progress and future perspectives on the use of next-generation sequencing (NGS) in veterinary medicine. Key advances in mammalian NGS-based diagnostics include the adoption of different types of sequencing platforms and the development of specific applications of NGS for the different mammalian hosts common for human and veterinary medicine. These advances will not be discussed here, except when necessary to highlight the potential of...
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Joginder Singh Uppal, Regional Business Director, points out how Bacteriophages are an innovation for a better future...
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1. Introduction The application of antibiotics on poultry farms has been linked to the global emergence of multi-drug-resistant (MDR) bacteria in recent years (Benrabia et al., 2020; Kaonga et al., 2021). MDR bacteria can spread from food-producing animals to humans through direct contact with the food chain and the environment (Kirbis and Krizman, 2015). One-Health issues are still an important topic in the poultry industry, pre-harvest as well as post-harvest. Efforts...
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Proteon Pharmaceuticals modulates the microbiome to improve animal health. Our products allow farmers to reduce the need to use antibiotics, enable more sustainable agriculture, improve food safety/quality and increase productivity by eliminating on-farm animal health challenges....
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Mueez Ahmad (Arm & Hammer) Enterococcus faecalis is considered a normal inhabitant of the poultry gastrointestinal tract. Although it has been known to be an opportunistic poultry pathogen, high levels of this organism can be recovered from the intestinal tract of normal, healthy birds with no known disease issues. More recently, an increasing number of poultry veterinarians and diagnostic laboratories have been reporting that E. faecalis is...
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Mueez Ahmad (Arm & Hammer) comments on the best practices to achieve antibiotic-free production, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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It is important to talk about fowl typhoid in poultry egg and meat production. Firstly, because there is certain ignorance around the pathogen that causes “fowl typhoid” since it is part of an extensive bacterial group with a complex taxonomical system. Secondly, because isolating it is somewhat...
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The mechanisms through which birds are protected against Salmonella Enteritidis are one of the key considerations for developing effective vaccines. Live attenuated and inactivated vaccines against avian Salmonellosis achieve different rates of protection, related mainly to the different immune...
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Mueez Ahmad (Arm & Hammer) gives a presentation on Enterococcus faecalis and Escherichia coli and their impact on decreased hatchability, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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During July 3rd - 7th our Research & Development team participated in the Viruses of Microbes 2023 , which took place in Tbilisi, Georgia. Our Chief Research Officer, dr Ewelina Wójcik , presented the results of one of the recently conducted studies on the Host range...
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1 Introduction By 2050, the world’s population is predicted to increase to 9.8 billion people, threatening food security and causing shifts in consumer purchasing patterns (1, 2). Animal-derived meat products are central to the current food supply, accounting for 40% of the agricultural production value and 13% of the calories consumed globally. Furthermore, based on consumer patterns meat consumption is predicted to increase by between 62% to 144% by 2050, with...
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INTRODUCTION The World Health Organization recognizes antimicrobial resistance (AMR) as a major health threat in the 21st century (1). A global projection predicts that the increase of deaths linked to AMR will develop from 700,000 in 2016 to 10 million deaths per year in 2050 while 100 trillion USD could be lost by 2050 (2). In this scenario, the use of antibiotics in food animal production is one of the most important issues contributing to the AMR crisis. In fact, over 50% of...
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Phileo by Lesaffre has shown that feeding yeast (1.3)(1.6) beta-glucan Safglucan can help pigs cope better with the negative effect of enteric disorders caused by Lawsonia intracellularis. This is a new (patent pending) application for Safglucan to help the pork industry achieve profitable production while also reducing antimicrobial usage. Enteric disorders caused by L. intracellularis are often the source of reduced and heterogeneous weight gain, decreased feed...
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Conclusions Overall, feeding B. subtilis DSM 32315 significantly improved feed efficiency and growth performance under enteric challenge conditions; Furthermore, dietary supplementation of B. subtilis DSM 32315 had beneficial effect attenuating the changes caused by the C. perfringens infection by increasing the frequency of Ruminococcus and unclassified members of the...
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1. Introduction Listeria monocytogenes is a foodborne pathogen of notable concern, especially due to its growth under household refrigeration temperatures (40 ◦F, 4 ◦C) and at a pH range of 4.5 to 9.6 [1–3]. Listeria monocytogenes has been subdivided into four phylogenetic evolutionary lineages due to variations in ecology recombination rates and genomic content [4,5]. Lineage I consist of most human clinical isolates and includes serotypes 1/2b, 3b, 3c, and 4b...
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Introduction High levels of production and efficient feed conversion are the need of the modern livestock industry which to a certain extent could be achieved by using specific feed additives. Feed additives are of great interest in the poultry industry due to their property to promote growth and performance. Common feed additives used in poultry diets include antibiotics, antioxidants, emulsifiers, binders, pH control agents and enzymes. Antibiotic feed additives as growth...
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The problem of loose dropping is common in layer chickens and it is often regarded as bacterial enteritis/dysbacteriosis. Apart from coccidiosis, what are the practical field observations that a poultry veterinarian encounters?
It can be discussed here with the causes and treatment, including the management practices that have been observed and practiced. How Dysbacteriosis and Bacterial enteritis differ in the clinical outcome? What is your Observation? ...
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This study investigated the effects of Bacillus -based probiotics on performance and intestinal health in broiler challenged with Clostridium perfringens -induced necrotic enteritis. One-day-old Arbor Acre (n=480) were randomly assigned to four treatments with 10 cages of 12 birds. Dietary treatments were; basal diet negative control (NC), with no probiotics nor antibiotics formulated to contain 2,930 and 3,060 kcal/kg with 24.1 and 16.0% CP, for starter and finisher diet,...
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Joginder Singh Uppal. Regional Business Director at Proteon Pharmaceuticals India, talks about the experience and success of using bacteriophages in the Indian Subcontinent
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In a previous article, we discussed the importance of contaminated drinking water as a risk factor for colibacillosis and stressed the need to pay attention to its microbiological quality. In a recent trial made in our lab, we showed the in vitro effectiveness of DigestoCid© to...
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