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Technical and commercial information on Poultry Industry. Health, nutrition, management, genetics and reproduction in poultry industry.
Introduction Antimicrobials, including antibiotics, antivirals, antifungals, and antiparasitics, are used to prevent and treat infections in humans, animals, and plants. 1 Microbes can become resistant to antimicrobials as a result of ineffective or prolonged antimicrobial treatment. This resistance may be “innate” owing to the slow and long evolutionary process that microorganisms undergo to adapt to changing environmental conditions; this adaptation is...
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The aim of this study was to evaluate the effect of a yeast extract supplemented in feed and a vitamins-aminoacids compound in the drinking water on the performance and microbiology count of broiler chickens. A 42- day experiment was carried out and replicated twice in time at Universidad ISA. In each experiment, 240 straight run day-old chicks were randomly distributed in 4 treatments of a Completely Randomized Design with a factorial arrangement. The 4 treatments were from the combination...
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Veterinary APIs Market Overview: Cost Pressures and Post-Holiday Price Adjustments
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With the aim to evaluate the effect of the supplementation of different concentrations of a Moringa oleifera liquid extract in the drinking water on the hematology profile, and performance of broiler chickens, two experiments were carried out at Universidad ISA. Each experiment had four (4) treatments (0, 1.87, 3.75 y 7.5 liters of M. oleifera extract in 937.5 liters of drinking waters), which were randomly distributed in a Completely Randomized Design. Each treatment had six (6)...
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by Sam Shafer
Thanks to breakthroughs in poultry science, improvements in the genetic potential of broiler chickens have cut the average production cycle in half. Now producers are looking for ways to improve egg hatchability and the uniformity and quality of broiler chicks.
Hatcheries use two major methods for incubating eggs: multi-stage systems and single-stage systems. Multi-stage incubators combine eggs from different farms and incubate embryos at...
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by Sam Shafer
Looking for a golden goose? Try a goose that’s two years old. In a recent study, researchers with the Heilongjiang Academy of Agricultural Sciences found that goose egg yolks (the most valuable part of the egg) tend to be at their largest following the goose’s second laying season.
The Journal of Applied Poultry Research study links a...
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by Sam Shafer
Ethiopian scientists evaluate three promising chicken breeds in rural and small-scale systems
Improving food security around the world means boosting protein production in ways that work best for local farmers. In Ethiopia, the government and outside agencies have promoted exotic, higher-yielding chicken breeds. Unfortunately, most exotic breeds introduced in the country require a level of investment in feed, veterinary...
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FIGAP 2026: The Scientific And Technological Exhibition Of The Livestock Industry
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1. Introduction Mycotoxins are low molecular weight compounds produced as secondary metabolites by filamentous fungi contaminating crops in the field or warehouses when environmental conditions of temperature and humidity are adequate. These metabolites have no biochemical relevance to fungal growth or development, and they constitute a chemically and toxicologically heterogeneous group, which are together only because they can cause diseases, including death, to human beings...
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1. Introduction The Food and Agriculture Organization of the United Nations (FAO) estimated that 25% of the cereal production is contaminated by mycotoxins [1]. Aflatoxin B 1 (AFB 1 )—the major secondary metabolite of Aspergillus flavus, A. parasiticus, and A. nomius—has adverse effects on humans and animals that result in health disorders and economic losses. To avoid these harmful effects, many physical, chemical, and biological decontamination...
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Effects of superdoses of phytase on peaking Hy-Line W-36 laying hen egg production and egg quality
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1. Introduction Mycotoxins are secondary toxic metabolites produced by filamentous fungi which, even at low concentrations, represent an important danger for both animal and human health [1,2]. Currently, over 300 mycotoxins have been identified worldwide, being aflatoxins, ochratoxins, zearalenone, trichothecenes, and fumonisins, the most frequently found with synergistic toxic effects reported when more than one of these mycotoxins are present in the feed [3,4]. Mycotoxins are...
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During the process of digestion and absorption of ingested feed in poultry, significant losses of endogenous amino acids (EAA) occur from various digestive secretions, mucoproteins and the epithelial cells lining the gastrointestinal tract (GIT). Several factors such as the development of GIT and changes in dry matter intake (DMI) with advancing age, type of bird, method of euthanasia and ileal digesta collection may influence EAA loss. Correction for these inevitable losses is necessary to...
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Fiodor Marchenkov (Kronos Agro LLC, Kiev, Ukraine) offers his views on fat digestion and energy in animal diets....
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Infectious laryngotracheitis is an avian respiratory disease which is caused by infectious laryngotracheitis virus (ILTV), and clinical signs vary from coughing, conjunctivitis, and gasping to expectoration of bloody mucus and death (1). Whereas genomic database analysis allowed the identification of an ILTV field strain in Australia as a causative agent of outbreaks as a result of recombination between attenuated vaccine viruses (2), genomic sequence data from viral outbreaks in South...
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DESCRIPTION OF PROBLEM There are growing concerns that the continual feeding of inorganic P is leading to the development of eutrophication of surface waters. Excessive P runoff from soil causes an accumulation of P in water sources, and this can result in toxic algal blooms and fish kills [1]. The availability of P from feedstuffs of plant origin is low for poultry because a greater proportion of the total P is present in the phytate form, a form that has low availability...
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Background: FAdVs are widely distributed, and some species are associated with important poultry diseases, representing current threats of serious economic losses for the aviculture industry. Some of the diseases include the Inclusion body hepatitis (IBH) related with FAdV-C and D infections, hepatitis-hydropericardium syndrome (HHS) related with FAdV-C infections [1,2], gizzard erosion (GE) related with FAdV-A infections [3-6] among others. The family Adenoviridae is divided...
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INTRODUCTION Vitamin D is a group of closely related compounds that have antirachitic activity. It has been estimated that nearly 50% of the United States population is at risk for vitamin D deficiency or insufficiency (Holick et al., 2011). Vitamin D 3 (D 3 ) deficiency can cause rickets in young children or increase the risk of osteoporosis and osteomalacia in adults (Holick, 2005). One approach to increase D 3 intake in a population without...
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INTRODUCTION Salmonella is an important pathogen transmitted through food, water or direct contact with animals. Recently, it was estimated that this pathogen causes more than 20 million disease episodes and 144,000 worldwide deaths annually. 1 In order to prevent infections, veterinary and human health laboratories have stablished national Salmonella surveillance programs oriented to monitor prevalence, distribution and antibiotic resistance profiles of this...
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Antibacterial activity of Bacillus species-derived surfactin on Brachyspira hyodysenteriae and Clostridium perfringens (Extract)
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INTRODUCTION In poultry, phosphorus (P) is an essential nutrient in metabolic processes and a component of nucleic acids, membrane phospholipids, and bones (Nie et al., 2013). Much effort has been made to increase P absorption in poultry to improve metabolic performance and reduce the environmental impact of phosphate (Pi) release from manure (Ahmadi and Rodehutscord, 2012; Letourneau-Montminy et al., 2013). Dietary P is absorbed in the small intestine by both passive and...
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1. Background Salmonella is an important pathogen transmitted through food, water or direct contact with animals. Most Salmonella surveillance programs rely on polymerase chain reaction (PCR)-based assays for rapid and accurate detection (1, 2). Among these molecular tools, the invA-PCR assay has been accepted as the conventional method for Salmonella detection (2-4). This PCR protocol amplifies a fragment of the invA gene, a Salmonella-specific locus (5, 6) proposed as an...
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1. Introduction Salmonella is one of the most common foodborne pathogens. The intestinal tract of poultry and other food animals is considered the main foodborne Salmonella reservoir [1,2]. An increasing incidence of antimicrobial resistance (AMR) has been reported in poultry Salmonella isolates where antibiotics are extensively used in production systems [3,4]. Although the link between antimicrobial usage in food animals and clinical treatment failures in human salmonellosis...
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INTRODUCTION Antimicrobial resistance is a major threat to human health (1). Host-directed therapy has emerged as a promising antibiotic-free strategy for disease control and prevention (2, 3). Host defense peptides (HDPs), also known as antimicrobial peptides, are small molecules of the innate immune system featuring antimicrobial and immunomodulatory properties (4, 5). Inducing HDP synthesis is a host-directed antimicrobial therapy that is being actively explored for human and...
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