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Mycotoxins in dairy cattle
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From the field to the feed, mycotoxin production is a cumulative process. It is controlled by several factors, the most important being climatic conditions and agronomic practices during cultivation. However, each mycotoxin has its own...
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Mycotoxins are naturally occurring compounds produced by fungi growing on plants in the field or during storage. Even though toxigenic molds may grow under a given set of environmental conditions, they do not always produce mycotoxins. However, under the right conditions, mycotoxins can be generated fairly rapidly in the field or in storage. Mold identification can provide a direction to test for potential mycotoxins but does not confirm the presence...
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Corn from the two 2020 harvests was found to have low to medium levels of five mycotoxins: AFB1, FB1, ZEA, DON and NIV (multiple mycotoxin contamination). The possible synergism, or additive effect of mycotoxins, also needs to be considered. Multiple mycotoxins at low to medium levels can have negative effects on animal health, reproduction and performance. Based on the results of this survey, the 2020 Brazilian corn crop should not automatically be...
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Dr. Oscar Queiroz, Agricultural Engineer and M.Sc. in Animal Nutrition at Teknal, speaks about main concerns that producers have regarding mycotoxins and especially aflatoxin contamination. ...
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A scientific paper developed by the R&D team was published in the journal Food Research International.
The company is currently investing R$1 million in research for new animal health and nutrition solutions.
A study by ICC Brazil, a pioneer in the production of innovative yeast-based solutions for animal health and nutrition, has been featured in Food Research International , a...
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1. Introduction Bovine mycotoxicosis is a disorder most commonly caused by the ingestion of fungal toxins (mycotoxins) within feed. Though acute manifestations exist, bovine mycotoxicosis most frequently constitutes a range of chronic and non-specific symptoms including digestive problems, such as gastroenteritis, diarrhea, and depressed feed intake [1,2], reproductive problems such as ovarian cycle irregularities and infertility [3,4], immunosuppression [5,6], and neurological...
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When addressing mycotoxin issues the fact that multiple ingredients make up a dairy cattle diet can be viewed both positively and negatively. Multiple feeds dilute the toxins from any given feed, resulting in a safer diet. On the other hand, since the effect of toxins can be additive, if there are multiple contaminated feeds, toxicity of individual feeds will be compounded. This article addresses the potential for individual feeds in a typical dairy cow diet to contribute the most...
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On the past two decades, diseases caused by food have been emerging as a major and growing public health and economic issue in many countries. Due to recent world crisis with some animal products,food safety is one of the most important and valued attributes by consumers. According to FAO and USDA, 25% of world agricultural crops are contaminated with some kind of mycotoxin and, as a consequence over, 532 million/ton of grains are contaminated. Considering that the base of animal feed...
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INTRODUCTION Mycotoxin contaminations pose growing problem in animal production from the economic and toxicological point of view (Marczuk et al., 2012). The adverse effects of mycotoxins manifest both on the health status, production and reproduction in ruminants, (dairy cows specifically) (Violeta-Elana et al., 2010). Feedstuff can be infected by more than one fungus, each of them can produce several mycotoxins consequently, and it is common that many mycotoxins occur...
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Geert Van de Mierop, Managing Director at Nutrex, introduces EndoBan®, a unique product that combines different strategies to minimize the negative effects caused by endotoxins, thereby improving performance, during Eurotier 2018
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Under ideal conditions, livestock should be fed grains and byproducts that are "clean" (i.e., free of fungi and/or mycotoxins). Although feeding clean grains and byproducts is ideal, there are times when clean grains are not available locally and farm finances do not allow for substitution of home-harvested grain with purchased grain. When grains or feeds test positive for mycotoxins, there are several approaches that can be taken to reduce the toxic effects to...
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Tall fescue (Festuca arundinacea) is the most economically important cool season forage grass grown in the United States and is the predominant forage in the southeastern part of the country (Figure 1). It is desirable because of its ease of establishment, tolerance to close grazing, ability to stand up to heavy animal traffic, survival during drought conditions, and resistance to insects, diseases and competition by weeds (Stuedemann and Hoveland, 1988). In addition, tall fescue can grow in a...
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Since mycotoxins were first identified in the 1960s, there has been an increased focus on contaminated feed due to global trading, increased monitoring and technology, changing agricultural practices, unexpected weather, food safety regulations and mycotoxin interactions.
Today, forage quality is a top priority on dairies as producers now recognize the risk poor feed ingredients can pose to the health and performance of lactating dairy cows.
Reductions in milk yield...
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1. Introduction Mycotoxins are a class of low molecular weight compounds that are produced by toxigenic strains of moulds that infect food and feed commodities. They can cause serious animal health related problems as they may be hepatotoxic, nephrotoxic [1,2] and may impair immune responses resulting in increased risk to secondary infection [3]. In addition, these toxins also compromise animal performance arising from...
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Pancosma & Associates released its annual mycotoxin survey, in partnership with Labocea, covering 1740 raw material and animal feed samples, evaluating the risk posed to livestock animals by 46 different mycotoxins, mainly in Europe. The comprehensive analysis extended beyond simply detecting contamination, to take into account the differing levels of sensitivity across various animal species. The data gathered show large variations in levels of mycotoxin...
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Mycotoxins, often one of the most neglected considerations in ruminant diets, should be a major animal health and welfare concern in modern animal husbandry, according to one leading researcher and veterinarian.
“Under the conditions of modern agricultural practice, mycotoxin contamination of feed materials cannot entirely be avoided,” said Dr. Johanna Fink-Gremmels, Utrecht University. “It is...
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Dairy and beef producers should keep a watchful eye over the remaining 2014 crop in their bins as both corn silage and total mixed rations (TMR) are now trending at high risk for mycotoxin contamination, according to Alltech’s recent storage analysis.
“Producers often ask how this is possible once the forage has been fermented. Mycotoxins are produced by soil-born molds and these not only infest the plant but are...
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Introduction The FAO, Food and Agriculture Organization of the United Nations, has estimated that as much as 25% of the world’s grain supply is affected by mycotoxins (CAST, 1989). The presence of mycotoxins in animal feedstuffs is of great concern worldwide due to the impact on the human population’s food supply. In 1995, the FAO/WHO conducted a survey that revealed aflatoxin testing in feed and food by...
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When transitioning cattle from ranch to rail, feed intake of a nutrient-dense diet is of utmost importance. Research indicates only 20 percent of cattle will eat on the day of arrival to the feedyard and by day five, only two-thirds are eating a sufficient ration from the bunk.
“Shipping stress, the health and nutritional status of the calf, unfamiliar surroundings and foreign feedstuffs are all factors that can take...
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Abstract An outbreak of a syndrome of unknown etiology associated with the feeding of moldy maize grain and green fodder to the male goat in a herd of 3853 meant for sale for Dashahara festival during the month of October-2010 in Kathmandu valley of which in a period of 10 days 500 goats suddenly became ill with symptoms of anorexia, apathy, diarrhea and ruminal stasis .On clinical examination these goats were...
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