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Poultry nutrition - Other additives
Alternative feed additives have promising importance in broiler production due to the ban on the use of certain antibiotics. The most used antibiotic alternatives in broiler production are phytogenics, organic acids, prebiotics, probiotics, enzymes, and their derivatives. Antibiotic alternatives have been reported to increase feed intake, stimulate digestion, improve feed efficiency, increase growth performance, and reduce the incidence of diseases by modulating the intestinal microbiota and immune system, inhibiting pathogens, and improving intestinal integrity. Simply, the gut microbiota is the target to raise the health benefits and growth-promoting effects of feed additives on broilers. Therefore, naturally available feed additives are promising antibiotic alternatives for broilers.
Various environmental stressors such as high ambient temperature and relative humidity influence the performance of broilers by reducing feed intake, feed conversion efficiency and hypophyseal-adrenocortical axis that in turn stimulates corticosterone which retarded growth (Dong et al., 2007). Reactive oxygen species (ROS) are generated at cellular level during normal bodily functions; however, high ambient temperature has been shown to increase the free radicals and other ROS production in...
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1. Introduction Sorghum has been described as an enigmatic grain for chicken meat production because sorghum-based broiler diets have been associated with sub-optimal performance of chickens under Australian conditions (Selle et al., 2013). Six red 'tannin-free' grain sorghum varieties harvested on the Liverpool Plains of New South Wales in 2009 were extensively characterised and compared in broilers offered sorghum-casein diets (Khoddami et al., submitted for publication). On...
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Introduction With the increase of microbes resistance, the use of antibiotics as growth promoters is decreasing worldwide. As a consequence, there is a need for alternative products able to maintain production performances without antibiotics. In this context, a trial was conducted on laying hens to evaluate the effects of a patented activated clay (B-Safe). ...
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The quality of drinking water for poultry and its effect on performance have been of concern to poultry producers for many years. Water makes up a large proportion of the body of the chicken, from 55% to 75%, therefore it is essential for life. Chickens are able to survive much longer without feed than without water. A rule of thumb for water is that the bird consumes from 1.5 to 2 times as much water as it does feed. Therefore, it is expected that deviation in...
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INTRODUCTION Chromium is an essential trace element in animal nutrition which is required for normal metabolism of carbohydrates, proteins and lipids in humans and laboratory animals (Balk et al., 2007). Research activities of different researchers exploring the effect of chromium on the reproductive ability of livestock have been successfully performed (Lindemann et al., 1995; Amoikon et al., 1995), but research on the use of chromium in poultry is very limited. Dietary...
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Effects of dietary amino acids in ameliorating intestinal function during enteric challenges in broiler chickens
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Introduction. Energy is a major cost component in diets for high-performing animals. Due to their high energy density, fats and oils are important energy sources in feed formulation. Improving the energy efficiency of these raw materials is of great interest from an economical point of view. Dietary emulsifier can be used in poultry feed as an important tool to improve fat digestibility, resulting in better energy ultilization of diets. The...
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Mike Donohue (Agri Stats) discussed long term trends in broiler efficiency and nutrition, as well as the transition to antibiotic-free production, during the Multi-State Poultry Feeding and Nutrition Conference in Indianapolis, USA. ...
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Adam Redhead (NC State University) explained the advances of the Animal Food and Nutrition Consortium and their research goals for this year, during IPPE 2019 in Atlanta, USA....
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Dr. Randy Payawal (Nuscience) shares his research on a medium chain fatty acid and its ability to control pathogens, during the 5th IHSIG Symposium on Poultry Intestinal Health in Bangkok, Thailand....
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Ken Koelkebeck (University of Illinois), program coordinator, talked about the collaborative work to put together this traditional event and the plans for next year's meeting....
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João Batista Lancini, DVM, MSc, Poultry Health Consultant, Lavenco Consultant, comments on the experience using Silvafeed® Nutri P, a natural extract used in the Brazilian feed additive poultry market, during the 2019 Multi-State Poultry Feeding and Nutrition Conference and Silvateam’s Technical Symposium.
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The Problem Endotoxins are potentially toxic compounds from bacterial origin. The most well-known endotoxins are lipopolysaccharides (LPS), which are part of the cell wall of Gram-negative bacteria. In poultry, the GI tract is a large reservoir of microorganisms, and therefore the most important source of endotoxins. During normal bacterial division and lysis, LPS molecules are released into the lumen. Once absorbed from the lumen, endotoxins induce an inflammatory response,...
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Endotoxins (lipopolysaccharides or LPS) are part of the cell wall of Gramnegative bacteria. During growth or bacterial lysis, LPS are released and can transfer to blood and tissues. In poultry, the intestinal microflora is the most important source of endotoxins, and the GI tract the main risk site for transfer from the lumen. Several factors (e.g. heat stress, mycotoxins, pathogens, feed transition) are known to increase gut permeability, promoting leakage of endotoxins into the blood. Once...
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Abstract
It is recognized that the benefits of eubiotic feed additives are not consistently demonstrated in research trials, especially in a clean environment without any challenge. Understanding factors affecting their efficacy will facilitate mechanism of action investigation and guide practical application. A battery trial was conducted with 384 day-old male broilers to evaluate the effect of protected benzoic acid on growth performance and gut health of broilers...
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Abstract
An experimental direct-fed microbial (DFM) was evaluated in a dose- response trial to determine broiler live performance to 42 d with Coccivac® B at placement (d 0), used litter on d 4, and toxin-producing Clostridium perfringens (Cp) challenges on d 17-18 (by oral gavage and via water trough daily). There were 8 dietary treatment groups with 10 replicate pens of 30 chicks each per treatment (2,400 Cobb 500 straight- run chicks total)....
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Dr. Bob Swick, University of New England, Armidale, NSW Australia, discusses the main aspects to be considered in early chick nutrition, during VIV Asia 2019...
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I boiled cattle blood and dried it as feed for chicken. It became too hard to crush.
How do i make blood meal soft for grinding after boiling and drying...
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1. Introduction Historically, biological active substances in herbal plants are considered the main sources for preventing and treating infectious diseases. They are also applied as protective drugs in human. Many investigators have explained that some herbal plants have biological active materials are able to increase animal production and act as antibacterial drugs [1,2]. The attention on herbal plants as growth promoter has gained more focus especially after banning...
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Introduction
The basis of the modern poultry meat industry dates back to the late 1950s and nowadays, poultry meat is one of the most important protein sources in human diet. Global poultry meat production in 2000 was 69 million tons and this has been increased to over 97 million tons in 2010 (Windhorst, 2011): an annual production of approximately 70 billion broilers originating from approximately 600 million broiler breeders. These data underline how a relatively...
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