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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.
ABSTRACT : The principal objective of this experiment was to determine the effects of dietary betaine on IGF-I, IGFBP-3 and IGFBP-1 secretion and IGF-I mRNA gene expression in the serum and liver of laying hens. A total of 72 ISA-Brown laying hens were fed with four different levels of betaine (0, 300, 600, 1,200 ppm) based on a corn-soybean meal diet containing 2,800 kcal/kg of metabolizable energy (ME) and 16% crude protein (CP) for four weeks. The results...
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Most of published trials are conducted in experimental farms, under good conditions, and generally give better performance than average field ones. We can then question about the practical use of these results in field conditions. In order to evaluate the influence of the conditions under which a product evaluation is done on the conclusion of the test, a 2x2 factorial study was conducted with broilers from 1 to 42 days of age : animals were...
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Which is the amount in grams of daily food for laying hens? Here is an answer from our Spanish community, by Giovanni Cabrera Ortega from Chile: Hello, It is advisable to provide between 110 and 120 grams of food for pondering chickens per day, but this has to be broken down as follows: Base energy (wheat, corn, wheat middlings, corn middlings, soybean, oats, etc), between 68 to 82 percent. Base protein (fish meal, middlings and other bone),...
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1. Introduction Diet formulation and the reduction in dietary protein levels, considered essential for the achievement of economic goals and to protect the environment, necessitate a better understanding of amino acid requirements. The concept of ideal protein for layers is limited by our understanding of the «requirements». The determination of a daily Lysine requirement has been attempted by many researchers. The results...
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How to treat a layer flock with history: poor egg shell quality, vaccinated against EDS, use of DCP in feed but no results? Can we use Milfone -C or Calcium Borrogluconate in water for treating flock? ...
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Managing broiler breeders is a new challenge with every flock as breeder companies produce new and improved "models" that have better growth efficiency and productivity than the year before. At the same time producers have been getting better at raising highly uniform flocks. All this progress means that the way we have allocated feed in the past might not be the most effective way to feed new and improved strains. Getting the right amount of feed to your broiler breeder pullets at...
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The increase in demand for cheap food and advent of modern production methods in agriculture have given rise to the use of synthetic compounds in feed, for example, sub-therapeutic antibiotic supplementation. For the past half-century, low, prophylactic doses of antibiotics have been standard practice. Although the response to antibiotic growth promoters (AGP) depends on a number of factors, including farm management, exposure to pathogens, environmental stresses and diet, their use is well...
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An experiment was conducted at Research & Development Centre, Islamabad Feed Mills, Rawat, Pakistan, from July 26 to September 01, 2007. The trial used 4,356 day old broiler chicks and was conducted to 35 days of age to determine bio-efficacy of a phytase enzyme (Phyzyme XP 10000 TPT, Danisco) on the growth performance of broiler chicks. Eight treatment diets were prepared as follows: 1. Without DCP&MCP and no phytase...
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Meeting the nutrient needs of modern intensively reared broilers is a challenge to the feed formulators. The high yielding broiler birds require diets with high nutrient density. Commercial feeds are, therefore, often supplemented with fats and oils to achieve the high energetic density. The fats added to the diet enter the gastro-intestinal tract as part of the digesta in rather big coagulated particles. Under the influence of bile salts these fat particles are emulsified into smaller...
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All recognised vitamins with the exception of vitamin C are dietary essentials for poultry nutrition, and each is required for normal metabolism, health and growth. Feed ingredients such as corn, soybean meal and meat meal, all contain natural sources of vitamins and in some situations could theoretically contain enough to meet the nutritional needs of poultry.
However the concentration of vitamins contained in these raw...
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Mycotoxin detection: VICAM builds a stronger and more sustainable future for food
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Poultry production is a business, which like any other enterprise seeks to generate profit. This is done by keeping production costs as low as possible. Wilson & Bayer (2000) found that feed cost is about 60 -70% of the total cost of production, and energy alone contributes about 70% of the feed cost (Saleh et al. 2004). Poultry were observed to eat the amount of feed that approximately meets their energy requirements (Rose, 2001). In addition, they consume a daily amount of food that...
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Dear Users,
This is an interesting forum from our Spanish community, generated by Gabriella Olivieri from Venezuela:
Hi, I want to ask a question about the supply of minerals in broilers:
I provided 200 grams of mineral (FOSVIT 20 of the CIA. Turtle Brazil) for every 40 kilos of concentrate, at 2 days after arriving the chicks, it has improved the yield in weight, but there is mortality at 16 days by infarction, and at 35 days this mortality is increased to 13.
I thank you any...
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Dear Users,
This is an interesting forum from our Spanish community, generated by the Veterinarian Fabián Ruiz Herrera from Peru:
I wonder if there is any scientific experience in the addition of B Complex in drinking water in poultry production?? ...
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Summary During the last decades important triggers for innovation have been the reduction of the output of minerals and nitrogen to the environment and the ban by the EU on the preventive addition of antibiotic growth promoters (AGP’s) to feeds. A good protein evaluation system with an accurate estimation of requirements will minimise the output of nitrogen to the environment, improve intestinal health and performance. AGP’s have a direct effect on the numbers of...
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An impact of Deoxynivalenol produced by Fusarium graminearum on broiler chickens
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Very little data is available on the fiber fractions of different feed ingredients e.g (arabinoxylnas, beta glucans, mannans, pectins, lignin, cellulose etc). What is the percentage of different fiber fractions in a particular ingredient and how much of these are degradable with particular enzyme addition? Before addition of enzyme in any ration substrate identification is compulsory. Enzyme addition in the form of single or cocktain preprations without knowing the exact proportions of fiber...
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Paper from the Australian Poultry Science Symposium The degree of grain grinding may influence the efficacy of exogenous enzymes in poultry diets, but published data on this aspect are limited. Amerah et al. (2008) reported that the effectiveness of exogenous xylanase in broiler diets is influenced by the particle size (PS) of wheat. The aim of the present experiment was to examine the interaction between maize PS and...
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Dear Users, This is an interesting forum from our Spanish community, generated by Joaquin A. Paulino from República Dominicana: Birds do not have a crude protein requirement, they only need an amount of nitrogen for the synthesis of essential amino acids. The ideal protein concept, investigated by Boorman (University of Nottingham) and Baker University of Illinois), is defined as the exact contribution of all amino acids with no excess or deficit for...
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Adisseo attended the XI Symposium of South Brazil Poultry, held in Chapecó from the 6th to the 8th of April. The company presented Cecile Berri, from the Institut National de la Recherche Agronomique (INRA) of France, who talks about her lecture: Nutritional effects on the carcass quality of broiler chickens. The interview was recorded by the Portuguese Area Team, who made a complete coverage of the event.
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Introduction. The most vital nutrient in the poultry ration is considered 'dietary energy' even though energy itself is not converted into Glucose in meat or egg except for liponeogenesis. Moreover; it is used as fuel for the synthesis of meat or egg. Therefore 60-65 % of the metabolisible energy in the poultry ration is imputed to carbohydrate. Other nutrients are normally adjusted based on the feed intake of the bird. There exists a relationship between energy and digestible...
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