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Julián Melo (Universidad Nacional de Luján / Dietaxion) In a context of rising prices of feed ingredients, the improvement of the overall feed digestibility and maximum utilization of nutrients in the feedstuffs should be a priority. Previous studies have shown the benefit of a double-buffered sodium butyrate (DBSB) on the performance and intestinal health of broilers fed low energy and protein diets (LEP). The aim of the study was to...
Jodi Delago (Arm & Hammer) Hatchability rates in the US broiler industry have been declining since 2014. The average weekly hatchability rate in the US in 2023 has been approximately 80.7%, a decrease of more than 4% since 2014. Published studies of nonviable embryos in Canada indicated that Enterococcus faecalis and Escherichia coli are frequently recovered from nonviable embryos and that infection by one or both bacteria may be contributing to...
Amine Benarbia (NOR-FEED) Eimeria spp. completes its life cycle within the host’s gastrointestinal tract. its reproduction has been known to damage enterocytes, leading to decreased growth performance and welfare in chickens. Controlling the reproduction cycle and limiting oocyst excretion could explain the observed efficacy of steroidal saponin-based standardized premixture -Norponin XO- (NPXO) supplementation in chicken. The objective of this...
Kalen Cookson (Zoetis) Infectious bursal disease virus (IBDV) infections within the first 2 weeks of age cause significant immune suppression while infections after 3 weeks are less severe and more transient. The purpose of this study was to see if a 3-week IBDV challenge could significantly reduce immunity against an infectious bronchitis virus (IBV) challenge given 4 days later. Study Design: Ross 708 broilers with high maternal antibodies to IBDV...
Dr. Markus Wiltafsky-Martin, Director of Service Commercialization at Evonik Animal Nutrition, explains what NIR is, how it operates, and demonstrates how AMINONIR® swiftly and accurately determines the nutritional quality of your feeds and raw materials – ensuring fast, reliable results of the highest quality.
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Mr. O.P. Singh, Managing Director of ABTL Enzymes, speaks about the challenges and opportunities that the Indian Poultry Sector has to face in order to improve its business operation...
Joshua Jendza (Qualitech) talks about avoiding pathogen growth while providing iron to the bird, and how iron works against Salmonella and other bacteria, during this Engormix interview....
Dr. Alain Riggi (Phileo by Lesaffre) speaks about boosting beneficial microbial diversity in poultry with Postbiotic...
I. INTRODUCTION Nutrient requirements are established by means of dose-response studies. Data is subjected to appropriate regression analysis and the level needed to maximise a given response (body weight gain, feed efficiency, carcass yield, etc.,) is defined as ‘requirement’. The estimates are compiled as ‘tables of nutrient requirement’ e.g., NRC, CVB, Brazilian Tables, nutrition guides by the genetic suppliers, and are used by field nutritionists as...
I. INTRODUCTION In the 1990s, researchers from the American Soybean Association (ASA) showed that soybean meal with similar proximate analysis can perform very differently in poultry and swine feeding. Subsequently, Creswell and Swick (2008) carried out feeding trials, AME and digestible amino acid analysis of 4 soybean meals. They found that there was a large difference between the soybean meals in BWG and FCR from the broiler feeding trials as well as in AME and digestible lysine....
I. INTRODUCTION With ongoing genetic selection for improved persistency of lay and feed efficiency (FE) in laying hens, the egg industry is pursuing the opportunity to extend layer hen lifespan until they are 100 weeks of age (WOA), with an aim for each hen to produce up to 500 eggs. This presents some challenges for the hen as during this longer laying cycle she will be producing more than 31 kg of egg product (Muir et al., 2022c) and using approximately 1 kg of calcium (Ca) to...
I. INTRODUCTION Feeding the world’s projected burgeoning human population increase of 2.2 billion people by 2050 will place tremendous pressure on food security. The poultry industry is innovative and well positioned to address this problem through increased efficiency and waste reduction. Globally, 32% (by weight) of produced food − equivalent to 1.3 billion tons − is lost or wasted every year. Conversion of food waste into raw materials for production of poultry...
I. INTRODUCTION In Australia, the cost of tallow and vegetable oil has more than doubled over the past two years (www.finvis.com), prompting broiler nutritionists to re-evaluate dietary energy content for meat-type chickens. Globally, a wide range of lipids with diverse chemical composition, are routinely included in poultry feed including soapstocks or acid oil, crude vegetable oil, hydrogenated material, recycled vegetable oil, restaurant grease, animal tallows and even products...
I. INTRODUCTION The welfare of all farmed livestock is of importance to the consuming public. Australian consumers especially have some concerns about welfare within more intensive animal production systems, such as commercial egg farms (Rachel et al., 2017). Most consider cage-free and free-range production systems to be more `natural` and associate this with `good` animal welfare (Buddle et al., 2021). Commercial egg farms experiencing smothering and mortality events as a result of...
I. INTRODUCTION The quality of poultry feed and litter are important for maintaining and improving poultry production. Poultry feed (raw materials and formulated diet) is highly variable and large safety margins are needed to buffer the nutritional variability in feed ingredients when formulating diets (Moss et al., 2021). Feed ingredients delivered to feed mills are not comprehensively analysed using current methods (i.e., wet-chemistry and NIR). This is because the large quantities...
I. INTRODUCTION Determination of range usage by hens can be difficult for researchers and free-range egg farmers, particularly usage on the outer sections of the range (i.e., > 50 m from the hen shed). Live counts only give a snapshot of numbers of hens on the range at a defined time point and do not show the frequency of range usage. Camera traps, also referred to as trail cameras and wildlife cameras, are relatively cheap and useful tools that could produce valuable information...
I. INTRODUCTION Modern broilers grow quickly because they have tremendous genetic potential due to intensive selection for increased growth rate and efficiency (Zuidhof et al., 2014). The parents, broiler breeders, carry this genetic potential and when fed ad libitum, easily become overweight (Heck et al., 2004), compromising reproductive performance (Renema and Robinson, 2004; Chen et al., 2006) and reducing welfare (Mench, 2002). Thus, broiler breeder hens are typically feed...
I. INTRODUCTION Phytase is commonly used in broiler diets at a typical dose level of 1000 FTU/kg feed to increase the P availability from phytate and reduce the need for inorganic phosphate inclusion. Increasing the phytase dose above this level is expected to further reduce the need to add inorganic phosphate and further reduce P excretion. In addition, if a phytase can break down phytate quickly and completely in the upper gastrointestinal tract, it will mitigate the...
I. INTRODUCTION Calcium (Ca) is an important nutrient for skeletal development, muscle contraction, nerve impulses, acid-base balance, and a cofactor for blood clotting and endogenous enzymes. Due to the involvement of Ca in numerous functions in the body, accurate supply of dietary Ca is essential for optimal growth, feed efficiency and nutrient utilisation. Oversupply of dietary Ca or an imbalance between dietary Ca and phosphorus (P) has been linked to significant reductions in...
I. INTRODUCTION Calcium (Ca) is a dietary essential mineral for poultry and the requirements for poultry have been investigated extensively for more than 75 years (Driver et al., 2005). Calcium is the most prevalent mineral in the body and is important for many physiological processes such as enzyme activation, intracellular signalling, acid base balance, eggshell formation and bone mineralisation (Li et al., 2017). Almost 99% of Ca is stored in the skeleton as hydroxyapatite...