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1. Introduction Commercial poultry farming is one of the fastest growing and most promising industries in Bangladesh. Intensive production system, however, depends solely on compound feeds and ingredients cost of which represents 65–70% of total production cost of the poultry farming. Animal originated feed protein materials such as fish meal and meat & bone meal are usually added to poultry feed as high protein sources. Driven by a booming need for livestock...
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On-Farm Welfare Assessment: Laying Hens In this newsletter we will provide an overview of animal-based indicators that can be used to assess laying hen welfare on the farm, using measures from the Welfare Quality® Assessment protocol (2009). The...
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Haemorrhagic enteritis virus (HEV) is an immunosuppressive adenovirus that causes haemorrhagic enteritis in young turkey poults with increased incidence of secondary bacterial infections, such as colibacillosis (Pierson and Fitzgerald, 2013). Worldwide live vaccines propagated in cell culture or turkeys (crude spleen homogenates) are used to prevent the disease. In Australia, there is currently no licensed HEV vaccine due to inability to import the only cell line known to support HEV...
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I. INTRODUCTION The optimum utilization of nutrients, especially energy and protein, by poultry is essential in commercial production. The efficiency of feed utilization has been improved through genetic development (Rege 1994), alongside feed processing and use of feed additives, especially microbial enzymes. Energy utilization in poultry can be measured by assessing metabolizable energy or net energy, which may be for production (NEp) or for maintenance (NEm). The NEp is...
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Introducing Afla-V ONE: Fast, precise aflatoxin detection for complete feeds and pet foods
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I. INTRODUCTION In Bangladesh, duck flock management is practiced using two systems: viz. stationary and nomadic. ‘Nomadic ducks’ are those which scavenge in post-harvest paddy fields during the day and stay in temporary enclosures or tents overnight near the scavenging area (Henning et al., 2012). Stationary or household ducks are kept overnight near the farmer’s house; they travel only over short distances and are often reared by families in subsistence...
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I. INTRODUCTION Feed efficiency (FE) is an important production trait in poultry. A commonly used measure of efficiency is feed conversion ratio (FCR), which is defined as feed intake (FI) per unit of egg mass (EM) in laying hens. It is widely recognised that behaviour is an important aspect of the physiological status of animals (Pennisi, 2005). Feeding behaviour may reflect animal meal habit as a potential predictor of FE (Schwartzkopf-Genswein, 2002). With the help of...
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Veterinary APIs Market Update: Price Trends & Key Insights – February 2025
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I. INTRODUCTION Infectious laryngotracheitis (ILT) is an important respiratory disease of chickens caused by ILT virus (ILTV, Gallid herpesvirus 1) that infects the upper respiratory tract and conjunctiva resulting in high morbidity and sometimes mortality (García et al., 2013). Vaccination with live attenuated vaccines administered by eye drop is generally effective: however for commercial meat chickens mass vaccination in drinking water via nipple drinkers is generally...
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Infectious laryngotracheitis (ILT) is an ongoing problem in meat chickens in important production areas of Australia. In response to outbreaks, live vaccines are typically administered at 7-14 days of age in drinking water via nipple drinkers which may not provide optimal contact with susceptible tissues. The efficacy of vaccination is not routinely assessed. As part of a series of experiments investigating the kinetics of ILT virus (ILTV) in meat chickens after water vaccination via nipple...
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Mycotoxins semiannual survey of mycotoxin in feed in 2023 Taiwan - Second Half
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I. INTRODUCTION Salmonella serovars can invade the host by inducing their own uptake into intestinal epithelial cells. This uptake is induced by virulence proteins delivered into cytoplasm of infected cells by a specialized mechanism known as type III protein secretion system (TTSS) (Bertelsen et al., 2003). These proteins activate signaling pathways involved in cytoskeleton rearrangements and cellular uptake processes (Galán and Zhou, 2000). Besides facilitating...
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I. INTRODUCTION Field success of mass ILT vaccination in young meat chickens is often accompanied by reports of vaccine reactions, often rolling through the flock for some time, and even apparent vaccination failure with wild strain outbreaks in vaccinated flocks. This is in spite of laboratory challenge studies often describing good protection of vaccines against an artificial challenge with the field outbreak strain (Arzey and Arzey, 1993). Laboratory studies (Rodrigues-Avila...
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Poor leg health in Australian fast growing meat chickens is a major welfare issue, resultant from long-term genetic selection for bird size and growth rate (Bessei 2006). Anecdotal evidence and preliminary data suggest perches may have the potential to improve leg health, decreasing the prevalence of associated leg disorders and lameness (Groves and Muir 2013). The following study sought to assess the potential role of perches in improving leg health in the context of Australia’s fast...
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I. INTRODUCTION A number of factors including the global population growth, shift towards high protein diets, finite land availability for crop production, climate uncertainties, increase in fossil fuel prices and diversion of feed ingredients, especially of cereals, to biofuel manufacture presents challenges to the global feed supply. This is a major threat for sustainable poultry production, in both the developing nations, as they move towards animal protein food regimen due...
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Phasing out of in-feed antibiotics in the poultry industry has caused necrotic enteritis (NE) to become a primary concern in commercial poultry production in many countries. Damage to the intestinal mucosa caused by this disease leads to impaired broiler productivity. To gain a better understanding of the impact of NE on transcriptome changes, a whole transcriptome sequencing (RNA-seq) was performed on jejunal RNA of challenged broilers to identify the pathways affected by this...
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Evonik's animal feed solutions based on low-protein, amino acid enriched diets make animal husbandry more efficient and help save resources. With a growing global population and rising affluence in many regions, the appetite for meat is picking...
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I. INTRODUCTION
One of the most sustainable types of production of animal protein is chicken meat production. Chicken production needs less feed consumption per kilogram of produced meat and uses less land and water for both farming and feed production. The major reason for this is the continuous improvement of animal performance, reflected in an ever decreasing feed conversion (kg feed consumed per kg body weight) and reduced time to achieve market...
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I. INTRODUCTION Forecasting is fraught with difficulties associated with poor data and unknown unknowns. Fortunately, in the case of laying hens, this is not true. We have an excellent history of how our birds have improved over the past decade (Table 1), and a fair idea of what can be expected in future breeding programmes used by the primary breeding companies. Our understanding is that the requirements for energy and protein per unit of output have remained unchanged and that...
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I. INTRODUCTION Right now, there are two different models of production in the world and they are based on the income of the people. We have 7% of the population that lives on more than US$50 per day (Pew Research Centre, 2015) and the percentage of food expenses is a minimal part of their income. These rich countries are moving towards production where cages are banned and the birds need to be provided with space outside of the barn. However, 71% of the world population lives...
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Supplementing poultry diets with xylanase partially depolymerizes the xylans present in the dietary cereals, reducing the number of sugars in the molecular chains. The resulting oligosaccharides can be selectively fermented by beneficial intestinal bacteria, resulting in improved nutrient utilization (De Maesschalck et al., 2015). The study aim was to investigate the production of xylo-oligosaccharides (XOS) in different batches of Australian wheat, in the presence or absence of xylanase....
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I. INTRODUCTION As we learn more about the negative impacts of calcium (Ca) on the availability of phosphorus (P) in broiler diets, it highlights how little we know about Ca requirements, digestibility of Ca in ingredients and optimal Ca to P ratios. The interactions through which Ca exerts some of its negative effects can be direct or through chelation’s with phytate and the latter having a profound impact on the efficacy of phytase and on P digestibility....
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I. INTRODUCTION Antibiotics as growth promoters (AGPs) have been extensively used at sub-therapeutic levels in poultry production to prevent diseases and promote growth performance. However, the persistent use of antibiotics can increase antibiotic-resistant bacteria and antibiotic residue accumulation in the animal products as well as potentially transferring resistant strains to humans through the food chain (Jazi et al., 2018a). Consequently, the poultry industry has been...
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