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INTRODUCTION Production of broilers with high growth rate and feed efficiency through impressive genetic improvement is often directly linked with digestive problems, such as passage of undigested feed (or) feed passage syndrome with impaired gut health function. The passage of undigested feed inside the poultry house is a sporadic problem in integration or individual farms mainly during rainy season. This may be due to the limited availability of major raw materials in diet and...
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Introduction There exist a general antagonism between growth rate and reproduction in domestic animals. Breeds selected for high growth rate allocate nutrients preferably in body mass development. This has detrimental effects egg production, fertility and livability. Therefore it is necessary to control the development of body weight development of broiler breeders through reduced feed intake. The common practice is a single meal allocation in the morning using a balanced diet....
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Amino acid pullet nutrition affects growth and development and it is important to evaluate potential effects on egg traits. One experiment was conducted to determine the effects of four amino acid (AA) dietary levels fed to broiler breeder pullets during the rearing phase from 5 to 24wk of age on egg characteristics. A total of 1,360 Cobb-500 slow-feathering pullets were placed in 16 floor pens (85/pen). Up to 4wk all pullets were fed one starter diet in crumbles and after 29d of age fed...
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Introduction The high cost of inorganic phosphate has influenced the direction of research and the industry to discover alternative sources of phosphorus (P) or improve the availability of P, for broilers. The phytase enzyme has been highlighted in the nutrition of non-ruminants as a tool to reduce the dietary inclusion of inorganic P and to decrease nutrient excretion through the excreta (WALDROUP et al., 2000; GRAÑA et al., 2013). With the growth and narrowing of an...
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Introduction Mycotoxins are secondary metabolites of low molecular weights produced by certain strains of filamentous fungi such as Aspergillus, Fusarium and Penicillium, which invade crops in the field and may grow on foods during storage under favorable conditions of temperature and humidity (Shamsudeen et al., 2013). The most common mycotoxins are aflatoxins, fumonisins, ochratoxin A, trichothecenes, zearalenone, and out of which aflatoxins (AF) commonly contaminate a wide...
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Introduction The influence of protein and energy on growth performance and carcass traits in broiler chickens have been intensively studied in the literature and the investigation is ongoing because the performance of modern broiler chickens improves every couple of years as a result of successfully selective breeding program. However, starch and lipid are the two major source of energy in typical broiler diets and little information about the influence of starch and lipid on...
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The occurrence of pasty vent is usually observed after 3 days of age when chicks are mainly depending on their feed rather than their yolk sac. Some chicken flocks present pasty vent more often than others, being their frequency variable and hard to track. How can it be prevented or treated? Could this characteristic damage the growth or feed conversion ratio at the market age? The pasty vents are produced because the cecal dropping has a sticky consistence and thereby not be released out...
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The global feed phytogenics market, an intrinsic sub-vertical of the food, nutrition, and animal feed industry, has been observing massive growth over the recent years, subject to mounting prevalence of livestock diseases and deteriorating animal health. In fact, reports suggest that livestock producers lose up to USD 21 billion to animal diseases every year. This count also disrupts the living of nearly 1 billion people who rely massively on livestock products like eggs, dairy, and meat....
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The 50-year historical review of soybean meal (SBM ) published in Feedstuffs in 1970 by Dr. J.W. Hayward highlighted many of the pertinent advancements concerned with animal nutrition, product development and promotional aspects of U.S. SBM. In fact, 1920 marked not only the beginning of the industrial production of soybean oil and SBM in the U.S., but also the year that the American Soybean Assn. was founded (Hymowitz, 1990). The use of SBM at the time this 50-year review was published was...
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The animal feed enzymes market is expected to garner noteworthy gains on account of surging concerns over disease outbreak among poultry animals. Imposition of strict regulations to encourage livestock safety is supporting animal feed enzyme adoption.
Livestock owners nowadays are willing to buy high-quality feed grades. The product mostly helps provide a nutrition-rich balanced diet to livestock. In addition, these high-quality feeds ensure animal wellbeing and help curb potential...
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Makenly Coles (University of Arkansas) discussed the results of her research regarding this drug as an option to control disease incidence, during IPPE 2020 in Atlanta, USA....
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Brian Jordan (University of Georgia) presented his research on clinical signs and replication of Infectious Bronchitis Virus, during IPPE 2020 in Atlanta, USA....
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Maarten De Gussem (Vetworks) talked about his approach regarding data analysis and its practical application in the industry, during IPPE 2020 in Atlanta, USA....
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Introduction Newcastle disease (ND) is considered one of the most important poultry viral diseases in terms of worldwide distribution and economic impacts. The NDV is classified into lentogenic, mesogenic, and velogenic strains according to the pathogenicity in chickens. The NDV is classified as a member of the orthoavulavirus genus of subfamily Avulavirinae in the Paramyxoviridae family. Its genome is single-stranded negative-sense RNA of...
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1. Introduction The CXC chemokine family consists of two subfamilies, delineated by the presence or absence of the tripeptide Glu-Leu-Arg (ELR) motif located in the NH2-terminal region and designated as ELRþ or ELR CXC chemokines, respectively (Fernandez and Lolis, 2002). CXCL8, also known as interleukin-8 (IL-8), belongs to the ELRþ CXC chemokine subfamily and functions as a neutrophil chemoattractant and potent angiogenic factor (Modi et al., 1990)....
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Mike Persia (Virginia Tech) talked about body composition and the advantages of this technology when evaluating energy status, during IPPE 2020 in Atlanta, USA....
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Mark Lyte (Iowa State University) discussed microbial communities and the role of nutrition, during AMENA 2019 in Puerto Vallarta, Mexico....
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The feeding program for poultry has a major influence on profitability as feed cost accounts for up to 75% of production cost. Conventionally, it is assumed that requirements are either listed in tables or breeder nutrition guides. The Requirement Approach stems from the broken line, which is a simplification of bird response and implies that at different levels of energy or nutrients, efficiency does not change or it is zero. Bird response is curvilinear and this implies that diminishing...
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