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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.
The modern broiler breeder is more of a challenge to manage and feed than their predecessors.
The end user has demanded changes in the broiler that they will purchase that results in breeding companies putting pressure on various traits including but not limited to; growth rate, feed intake, breast meat yield and feed conversion ratio. Improved selection techniques and better analytical methods have resulted in significant...
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I. INTRODUCTION The application of exogenous enzymes to counteract anti-nutritive properties of targeted dietary components and improve broiler growth performance is routinely practiced. The performance of broilers offered sorghum-based diets may be inconsistent and is not usually enhanced by non-starch polysaccharide-degrading enzymes. However, amongst cereal grains, sorghum contains relatively high phytate concentrations (Selle et al., 2003)...
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I. INTRODUCTION Juncea canola (Brassica juncea) was developed as a drought and heat tolerant alternative oilseed to canola in Australia. Its oil and meal qualities are similar to canola. The level and types of glucosinolates in the juncea canola meal meet the specification of canola meal with total glusinolates of less 30 umoles/g. (NSW DPI, 2009). Juncea canola oil is low in erucic acid (<2%) and moderate (57-63%) in oleic acid...
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Importance of chromium as a dietary supplement Reducing stress in poultry remains a topic of concern amongst producers and scientists. An increased concentration of glucose in blood and a decreased protein level are associated with stress induction along with an increase in circulatory cortisol level. A temperature >30 o C represents a heat-stressed condition for birds and is one of the most common stressors that affect the production criteria in poultry in the...
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INTRODUCTION Poultry industry present and future is focused on becoming a sustainable industry, on one side by decreasing the consumption of ingredients used also as human food, by increasing the use of alternative feedstuffs, and also by developing technologies to allow an increase on the digestible fraction of the feed, to diminish environmental pollution, for example exogenous enzymes addition to the feed. In the case...
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Introduction Rapid growth, efficient feed conversion and low mortality rate are the prerequisite for a successful poultry enterprise. The importance of calcium and phosphorus in poultry is quite obvious, as they constitute the major part of the mineral contents of the bones. Calcium and phosphorus are very closely related to each other, and the deficiency or excess of one can interfere with the proper utilization of the...
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Summary A total of 144 Cobb 500 broilers were used to investigate if modern broilers can regulate calcium intake using choice feeding. Birds were fed diets containing 0.25, 0.50, 0.75 or 1.00% total Ca and a separate Ca source (CaCO 3 ) from 1-21d. Consumption of the separate Ca source increased with decreasing Ca concentration of the mixed ration (P < 0.0001) indicating that modern broilers retain a Ca-specific appetite. Further,...
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Introduction Methionine, choline and Lysine are universally recognized as the most two limiting amino acids in broiler diets based on corn and soybean meal (Baker, 1997; Han and Baker, 1991). The supplementation of broiler feeds with these amino acids is very common in the poultry industry. However, Synthetic methionine and choline are metabolized into highly toxic compounds such as methylpropionate ,...
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The main goal of this experiment was to test the effect of sex, age and live weight of male and female broilers fattening to a high live weights on the quantity and quality of fats and its fatty acid content from nutritional point of view. In an experiment with 200 male and 130 female hybrid broiler chickens ROSS 208 fed on a litter ad libtum for 9 and 16 weeks for the females and males respectively, with a mash starter BR1 of 12.58 MJ and 86% dry matter...
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Distillers´ dried grains with solubles (DDGS) are increasingly becoming important in poultry feeding. Research into the use of this material has focused largely on maize DDGS from North America and less work has been done on the predominantly sorghum DDGS that are produced in Australia. In preliminary tests, we investigated the variation in nutrient composition of sorghum DDGS and then conducted a feeding trial on broiler chickens. The trial involved 432...
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Myths that have erroneously limited feed-grade amino acid inclusion in poultry diets have been dispelled in these proceedings by presentation of a historical perspective. In addition, recent research has been presented which has allowed for aggressive feed-grade amino acid inclusion that maintains good bird performance in diets with reduced costs and environmental impact. Namely, in the past 10 to 15 years numerous research reports have delineated threonine,...
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INTRODUCTION Animal feed ingredients can provide appropriate environmentfor fungi growth and many toxic metabolites (mycotoxins) are produced by these molds. In this context, aflatoxin, a secondary toxic metabolite produced by Aspergillus flavus and Aspergillus parasiticus species, play an important role in the food chain (Pimpukdee et al , 2004). Vitamins and mycotoxin binders can be...
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INTRODUCTION Animal husbandry suffers from losses due to contamination with pathogenic bacteria. Their resultant impacts in animals include lower weight gains and increased mortality. Banning the use of in-feed antibiotics (AGPs) in livestock, as has happened in the EU, placed more pressure on animal producers and feed millers. In this context, organic acids have long been used to counteract gram-negative pathogenic bacteria in animal feed; and...
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INTRODUCTION The use of additives in feed for broilers is increasing every day. Enzymes are the most commonly used in this segment, they are very effective in increasing nutrient availability to broilers and guarantees the farmer a lower cost feed formulations and also an improvement in rearing conditions. Enzymes in the diet and improves the efficiency of poultry production by...
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Eddy Decuypere from the Katholieke Universteit Leuven, Belgium, was invited by Adisseo to discuss about early feeding of chicken in a Seminar at the WPC 2012, Brazil. ...
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INTRODUCTION Improving the efficiency of the use of nutrients and causing a formulation to be more precise are the most effective methodologies intended to reduce losses of nutrients and improve performance parameters. According to GUENTER (2002), enzyme supplementation to animals is intended to remove or destroy anti-nutritional factors of grains and increase total digestibility of...
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INTRODUCTION Major advances have occurred in poultry in the last decades, thus making it one of the most developed segments of world agriculture. Many researchers have been conducted in nutrition area in search of alternatives to enable the formulation of rations and more efficient economical, in view of that power has the largest cost in the production of broilers. The use of enzymes...
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INTRODUCTION According World Health Organization (2000) antimicrobial growth promoter is antimicrobial agent used for the purpose of increasing daily weight gain or feed efficiency (feed-weight gain ratio) of food-producing animals. But the growing concern over the transmission and the proliferation of resistant bacteria via the food chain has led to a complete ban of the feed use of antibiotic growth promoters in...
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Summary Dietary lipids and fatty acids are not only fundamental in determining animal performance, but also determine the eating qualities of animal products. Several methods have been used to quantify fatty acid metabolism but most involve expensive in vitro approaches that are not suitable for most laboratories. Furthermore, there is considerable variation between methods with regard to enzyme activity, which makes comparison of results between...
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INTRODUCTION
The biggest challenge of commercial poultry production is the availability of good quality feed on sustainable basis at stable prices. In spite of this challenge, commercial poultry production ranks among the highest source of animal protein (Iyayi, 2008). The increase in the size of the poultry industry has been faster than other food-producing animal industries. The trade volume of poultry products has also increased...
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