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INTRODUCTION Genetic selection programs emphasizing broiler growth, breast muscle deposition, and feed efficiency traits over the past 30 yr have led to a rate of change that has not slowed (Havenstein et al., 2003a,b). Photostimulation ( PS ) age, feed allocation, and BW profile of the maturing pullet can all effect nutrient partitioning between growth and ovary development (Robinson et al., 2007). Renema et al. (2007b) reported that, as a percentage of BW, Ross 708...
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Aurora Nutrition
George Entz
In order to use betaine hydrochloride with a matrix approach for poultry, and based on trials conducted in Thailand and other locations under what would be considered heat-stressed conditions, an inclusion of 2.5 kg/t (0.25%) would be required. Betaine's matrix value for digestible methionine and digestible methionine+cysteine is 42%, and 26,000 Kcal/kg. At 2.5 kg/t, supplemental choline chloride could generally be removed from the feed....
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1. Introduction As reported by the World Health Organization (WHO), salmonellosis is taking third place among foodborne diseases in humans, causing death. In European Union, Salmonella Infantis has been ranked among five most prevalent infection-causing serovars in humans [1]. Unlike S. Enteritidis, S. Infantis serovar tends to develop multidrug resistant phenotype more often. It has been recognized as a persistent clone,...
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Introduction The challenge of the contemporary production of agricultural products is intrinsically linked to optimizing processes and production costs. Ensuring thermal comfort, considering that the intense incidence of solar radiation and the high temperatures observed practically throughout the year in the Brazilian semiarid region can cause stress, causing the animals to decline in production, can increase animal production (Leitão et al., 2013). Therefore,...
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The need to reduce heat stress and oxidative stress in poultry is crucial to maintain bird performance and optimal margins for farmers. Phileo’s experts discuss how to mitigates the detrimental effects of heat stress using premium quality yeast cell walls. J...
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1 Introduction Amino acids (AAs) are the building blocks of protein, which is the major dry matter component of growth in chickens and their eggs (Baker 2009). As foods for humans, poultry and eggs provide high-quality protein that contains sufficient amounts and proper ratios of AAs, therefore playing an important role in the growth, development, and health of humans (McNeill et al. 2017; Réhault-Godbert et al. 2019). Chicken or poultry byproducts are also low-cost...
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Feed contributes about 70% of total expenses required for the modern poultry enterprises in general. As the days go by, the issue is becoming a cause of concern and it becomes almost mandatory to rethink on the feeding strategies to make the enterprises profitable & sustainable as well. Since the major reason for the concern is the rise in prices of various feedstuffs thus as a consequence practice to utilize comparatively cheaper and unconventional feed ingredients becomes time...
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INTRODUCTION It is important to estimate precisely the energy value of feedstuffs and diets, either for least-cost formulation or for adapting feed supply to the metabolizable energy requirements of broilers. Unfortunately, such energy is not used with 100% of efficiency for production, because during metabolism, around 15% of the energy is wasted as heat, and this is commonly referred to as heat increment or specific dynamic action. In fact, net energy values vary with bird...
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Rapidly growing birds may consume up to twice as much water as feed (Scantling and Watkins 2013), which means a plentiful supply of clean water is crucial for poultry health and productivity. To determine the quality of your poultry’s water resources,...
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Introduction Mycotoxins are a large group of toxins produced by moulds and they can be very toxic for animals, plants and humans. Mycotoxins occur particularly in regions or countries with climates of high temperature and humidity or where there are poor crop harvesting and storage conditions, which encourage mould growth and mycotoxin development (25). The toxic effects of mycotoxins are mainly on liver and they cause teratogenic, mutagenic,...
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DESCRIPTION OF PROBLEM Quail egg production is an important market for human consumption in some countries, including Brazil, China, and Japan. Studies are very important to enable a rational production for information on setting a correct feeding program for these birds. The level of a single essential amino acid that is either deficient or in excess may result in a diet that does not optimize the economic efficiency of a...
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INTRODUCTION Cool temperature storage of eggs prior to incubation is a frequent practice of commercial broiler hatcheries. However, continued storage beyond 7 d leads to an increase in early embryonic mortality. The cellular and molecular mechanisms responsible for early embryonic mortality associated with egg storage and means to reduce such mortality has been addressed by several investigators (Fasenko, 2007; Hamidu et al., 2011; Dymond et al., 2013)....
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1. Introduction Contamination with Salmonella affects an estimate of 20% of poultry meat [1]. This pathogen has the ability to remain viable for considerable periods of time in various biological and nonbiological habitats due to the formation of biofilms. Salmonella spp. are widely represented in the environment, and the intestinal tract of animals and birds is where they are found most [2,3]. Salmonella enterica can cause severe zoonotic disease and is transmitted to humans...
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Introduction The usage of antibiotics as a growth promoter is widely banned by European Union-wide in 2006 due to their side effects on animal health and their residues in meat for human health (EU-wide, 2005). Novel and beneficial feed additives including different dietary fibers with adequate amount promotes the growth performances and maintain their immune and gut health (Jha et al., 2020; Jha and Mishra, 2021). Fenugreek is a popular medicinal plant grown in nature, mostly...
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1. Introduction Carotenoids are natural pigments which are responsible for yellow to red colour observed in plants and vegetables (Mortensen, 2006). Carotenoids are important for its various roles in human and animals, these include immune functions, decrease in the risk of disease and antioxidant function (Johnson, 2002; Rao & Honglei, 2002; Hinds et al., 1997). There are over 700 carotenoids (Junpatiw et al., 2013); one of which is the β-carotene. β-carotene can...
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During this PSA interview, Abbey Mathew (Aviagen New Zealand) explains how this country dealt with the effects of the pandemic regarding safety and supply chain. Let's Squawk About It is a monthly interview segment by the Poultry Science Association....
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Lesley Gleason (Program Coordinator, Department of Poultry Science at Texas A&M University) comments on the benefits of becoming a student in this field, during this PSA interview. Let's Squawk About It is a monthly interview segment by the Poultry Science Association....
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Dan Wood (Potters Poultry) explains the success he's found in promoting poultry through social media in this interview with PSA. Let's Squawk About It is a monthly interview segment by the Poultry Science Association....
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The Evonik Corporation award is an annual award given as an achievement award, i.e., for distinctive contributions to poultry science advancement, covering a period of not more than seven years preceding the annual award.
Lisa...
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