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DESCRIPTION OF PROBLEM Phytase has been regularly incorporated into commercial poultry diets due to its relatively low cost and effectiveness at hydrolyzing phytate (IP6; myo-inositol 1, 2, 3, 4, 5, 6-hexakis dihydrogen phosphate; Bedford and Cowieson, 2009). Dephosphorylation through phytase supplementation is needed for birds to access this source of P and also to prevent the chelation of IP6 with other nutrients such as amino acids and minerals (Nelson, 1967; Ravindran et...
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1. Introduction The process of industrialization of the poultry sector has achieved a high degree of automation, however, such progress does not translate into an improvement in the quality of the meat, rather, they contribute to increase the microbial load of the poultry carcasses gaining importance today Campylobacter spp, among other microorganisms involved in food-(ETAs) transmitted diseases [1]. Infections among species of the family or Campylobacteraceae ...
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Introduction Salmonellosis is one of the major foodborne diseases in developed countries [1]. It is known to be closely related to the consumption of contaminated food of animal origin, including eggs and poultry meat [2,3]. Salmonella enteritidis phage type 6 (PT6) is suspected to be the cause of epidemics of foodborne diseases in many countries [4]. Other severe outbreaks of S. enteritidis PT1 infection have been observed [5]. Salmonella typhimurium, a redoubtable pathogen,...
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What is avian influenza?
Avian influenza (AI) is a viral disease affecting birds, including several species of domestic poultry, as well as pet and wild birds. While AI viruses are highly species-specific, on certain occasions they have crossed the species barrier and have been isolated from mammalian species, including humans. The many strains of AI viruses can generally be classified into two categories according to the...
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Identifying behavioral signs is key to managing heat stress in poultry Every year, high summer temperatures have important effects on poultry health and welfare. Heat stress occurs when poultry cannot adapt to high environmental temperatures and need to expend energy to...
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Biosecurity is a major consideration for egg farmers across the world, and can be regarded as the ecosystem of measures capable of preventing the spread of harmful organisms to animals to reduce the risk of transmission of infectious diseases. Strong biosecurity requires all preventative measures to work collaboratively, from vaccines to physical barriers, hygiene practices, personal protective equipment (PPE) and bio-monitoring. It is essential that all elements are working in sync, with no...
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Light plays an important role in controlling the age at sexual maturity in birds; attaining sexual maturity at an appropriate age and weight is the key to reproductive success and the present study was an effort in the same direction. To develop specific practice for quail production and to optimize the best age for photo-stimulation present experiment was conducted. In total 225 females and 75 males of 5 week old were studied. A completely randomized design with three treatment of 5...
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Although the first mentions to “choline” date from XIX century (In 1850, Theodore Gobley already described a substance “lecithin”, and then, in 1862, Adolph Strecker heated lecithin from bile, which generated a new nitrogenous chemical termed “choline”), choline’s role nutrition was not well known until 1930s. Since then, several researches have established it as an essential nutrient, which main functions could be summarized...
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INTRODUCTION The domestic chicken has been an essential animal model and constitutes a remarkable source of high-quality protein for humans (Stern, 2005). Within the last 60 years, genetics of the domestic chicken ( Gallus gallus domesticus) have been able to create a bird that reaches commercial body weight in 5 weeks (Burt, 2007). Unfortunately, with this astonishing genetic development, other disapproving conditions such as adiposity, leg, metabolic and reproduction...
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Standardised Ileal Amino Acid Digestibility of Ingredients for Broiler Chickens is Influenced by Feed Form
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From January to now, the manufacturers have been mainly executing the previous vitamin E orders, and the market quotation remains stable at 70 RMB/kg. On February 22,ZMC announced to raise the price to 85RMB/kg which ignited the market.
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Precision poultry farming is the use of advanced technologies to optimize the contribution and health/welfare management of individual animals. UGA poultry science Extension team will host the 2021 Georgia Precision Poultry Farming Conference to...
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It is necessary that animals have a balanced intake of Feed and water.
Intake of water alongwith intake of Feed is an important indicator of the health of the animal.
Pigs and Poultry drink water twice the feed intake. Whereas Cattle drink water four to five times the feed intake. Hence, any deficiency in the feed can be supplemented by nutrients through water.
To improve the efficiency of animal functions, there are a number of nutritional supplements available but...
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I. INTRODUCTION Papers have been presented at the past two APSS meetings on the subject of low protein diets (Kidd and Choct, 2017; Hilliar and Swick, 2018; Lambert and Corrent, 2018). Few, if any, have taken note of the economics of such diets. This paper is an examination of the costs of low protein diets. A brief history of amino acids is worth reviewing. Each time a limiting amino acid became available commercially, and was used, the protein level of broiler diets was...
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Both glucose and amino acids are essential for muscle protein deposition and feed conversion efficiency. Total tract nitrogen retention was reported to be influenced by protein and starch digestion in broiler chickens (Liu et al., 2013). Embracing the concept of digestive dynamics and applying it in practical diet formulation requires understanding of the variations of protein and starch digestion rates in different ingredients. This present study evaluated protein and starch digestion rates...
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I. INTRODUCTION Improved FCR was observed in broiler chickens fed a slow digestible starch diet compared with a fast digestible starch diet (Weurding et al., 2001). Furthermore, Enting et al. (2005) indicated that a slow digestible starch diet fed to broiler chickens can spare amino acids (AA). Finally, Liu et al. (2017) and Truong et al. (2017) concluded that starch digestion kinetics play a role in broiler performance, but that protein digestion kinetics may be more important...
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I. INTRODUCTION Owing to the increased efficiency, growth rate and reduced mortality achieved, antibiotics have been used continuously in the broiler industry for decades (Cromwell, 2002) and are being questioned for antibiotic resistance. Some of the alternatives include vitamins, minerals, herbal drugs, plant extracts, phytobiotics and antimicrobial peptides and beneficial bacteria (Yadav et al., 2016). Recently, there has been increased interest given to polyphenols...
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