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Mycotoxins in feedstuffs
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As producers, nutritionists and veterinarians we are used to seeing molds on the farm. Molds are ubiquitous in the environment and it has been well documented that some of these molds have the ability to produce poisons known as mycotoxins. Because of their ability to survive many environmental conditions, different species of molds have the ability to grow on the crop in the field pre-harvest, during harvest and also post harvest. It has also been documented that mycotoxin...
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INTRODUCTION Livestock industry in West Africa has seen a tremendous growth with the best application of nutritional technologies (John Prabakaran and Dhanapal, 2009). However, feed safety is a concern for achieving productivity (Jimoh and Kolapo, 2008). Even with the best quality control systems in the world, animal producers often find themselves owning mycotoxin contaminated grains or...
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Introduction The primary objective in fish nutrition is to provide a nutritionally balanced mixture of ingredients to support the maintenance, growth, reproductive performance, flesh quality and health of the animals at an acceptable cost. The diet should also have a minimal effect on water quality and culture systems. In order to achieve these goals the diet must provide all required nutrients in the correct balance and must be formulated to keep any anti-nutritional...
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The fungus Aspergillus flavus causes Aspergillus ear rot, one of the most important diseases in corn. The fungus produces a mycotoxin — known as aflatoxin — inside the diseased corn kernels. The presence of aflatoxin will affect grain quality and marketability, as well as livestock health if the grain is consumed. Aspergillus ear rot is commonly observed during hot, dry years on stressed plants (such as those exhibiting symptoms of...
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With high temperatures and dry conditions being prevalent during this season's corn grain-fill period, the risk of Aspergillus ear rot is high. Caused by the fungus Aspergillus flavus , Aspergillus ear rot is observed as a yellowish-green mold growing on corn kernels. Areas in fields that have insect- and bird-damaged ears may be affected more severely by the disease. Aspergillus flavus produces a mycotoxin known as aflatoxin,...
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Microbial deterioration of grain, feedstuffs and animal feed is of great concern to all segments of the production animal industry. Molds are a group of microorganisms that cause deterioration of grains or feeds, various infections in livestock and intoxication due to the formation of mycotoxins in feedstuffs. It is reported that as much as 25% of the world's cereal grains may be contaminated with mycotoxins. Since mycotoxin production and feedstuff...
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Aflatoxins are a group of chemicals produced by certain mold fungi. These fungi, Aspergillus flavus and Aspergillus parasiticus , can be recognized by olive green or graygreen, respectively, on corn kernels, in the field or in storage (Figure 1). Although aflatoxins are not automatically produced whenever grain becomes moldy, the risk of aflatoxin contamination is greater in damaged, moldy corn than in corn with little mold. Aflatoxins are harmful or fatal to...
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The significant research focus on mycotoxins in recent years has dramatically increased our awareness and understanding of mycotoxin nature, occurrence and impact on modern animal production. Mycotoxins in feedstuffs represent an unavoidable risk due largely to environmental factors. As a result, analytical tools using a holistic approach are needed to understand multiple mycotoxin contamination patterns. Application of Alltech's 37+ Program...
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Introduction Paddy harvesting, threshing and its storage are major agricultural activities in south Asia during the November. Such rice straw is the major fodder for cattle and buffaloes during winter lean period. It´s a fact that rice production needs source of water supply for irrigation as water is indispensable throughout production period. The rice straw should be properly dried before feeding otherwise the undried straw might...
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Grain infected by mold may contain toxic fungal metabolites called mycotoxins. The word mycotoxin was derived from mycotoxicosis, which was a term first used in 1955 to describe diseases of animals caused by fungal toxins. The presence of mycotoxins in feed grains or ingredients may cause illness or death in livestock. Mycotoxins also pose a potential hazard to human health. The Food and Drug Administration (FDA) has established an action level of 0.5 parts per billion (ppb) of the...
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How feed can be protected from being infected from moulds? can any temperature treatment help? and how can we diagnose that feed grains are infected with moulds? Is there any specific laboratory tests that may guide us? I wil be very thankful if you people help me more about how to protect feed ingredients from being infected with moulds and how should i get checked my feed for this purpose. Thanks, Dr. Syed ...
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Mycotoxins are metabolites produced by molds (fungi) which are toxic when consumed in significant amounts by livestock. The resulting pathological syndromes are referred to as mycotoxicoses. Mold growth on grains and subsequent mycotoxin synthesis is regulated by numerous factors of which moisture content is usually the most important. Toxigenic fungi generally grow best under humid, warm, aerobic conditions. High moisture grains are, therefore, particularly susceptible to...
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The occurrence of toxins can be classified into different groups. The most frequent occurring toxins are those produced in feed grain. These toxins can be divided into toxins formed before harvest and toxins formed after harvest. Toxins can also occur in different protein sources such as soy-, rapeseed- and sunflower products. FAO estimates that about 25% of the world's crops production contains toxins. There is a big...
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The global frequency of mycotoxin contamination of feedstuffs and the severity of mycotoxicosis in livestock has increased in recent years. Wheat-based feed and food supply chains can be contaminated with mycotoxins produced by a variety of fungi, in particular by Fusarium species. Since wheat is an important source of energy in human nutrition and in nutrition of monogastric animals its quality is crucial. This paper gives an overview of the occurrence...
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Abstract:
An clinical epidemiological investigation of Acute sudden death syndrome due to which 22 mules from a herd of 1400 died within the period of 0ctober to November 2009 in Bajura District Nepal. These animals were being used for good transportation work in hilly region of Nepal. On rout these animals were being fed only whole grame.Normally healthy looking animals started dying suddenly. Initially suspected for acute bacterial disease and...
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Livestock enterprises faces the maximum loss is owed to the contamination of animal feed ingredients and compounded feeds by moulds and its toxic metabolites known as mycotoxin. Some of the primary toxigenic moulds and mycotoxins are indicated as following:
Moulds
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Livestock enterprises faces the maximum loss is owed to the contamination of animal feed ingredients and compounded feeds by moulds and its toxic metabolites known as mycotoxin. Some of the primary toxigenic moulds and mycotoxins are indicated as following:
Moulds
...
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Alberta is currently free from any Fusarium head blight outbreaks caused by Fusarium graminearum . If this fungal disease were to establish in this province, it would have major economic consequences for Alberta's cereal and animal feeding industries.
Fusarium head blight (FHB) is the most destructive fungal disease of barley and wheat in Canada. The occurrence and higher severity of FHB in cereal crops in western Manitoba and eastern Saskatchewan is cause for concern. The...
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Problems with the fungus Fusarium and the toxin it produces can be minimised. It is necessary to combine various strategies, but the positive aspect is that the problem can be controlled without the use of chemicals. Disease in wheat caused by Fusarium fungi is an important problem in several European countries and is also important in certain crop systems in Denmark. In order to solve the problem it is necessary to approach it from several angles. A new folder...
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Last week, corn farmers from Texas, North Carolina, Georgia, Mississippi and Alabama made Capitol Hill visits to advocate on important agriculture issues. The group specifically was lobbying for agricultural research funding to address ongoing concerns with mycotoxin contamination in corn.
"It's crucial that agriculture works together on this issue, which is especially important to farmers in the Southeast," said Guy Davenport, a grower from North Carolina who made the...
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