نتایج جستجو برای: feed additives
تعداد نتایج: 80136 فیلتر نتایج به سال:
Chemical substances applied in animal husbandry or veterinary medicine and in crop protection represent substantial environmental loads, and their residues occur in food and feed products. Product approval is governed differently in these two sectors in the European Union (EU), and the occurrence of veterinary drug (VD) and pesticide residues indicated by contamination notification cases in the...
The poultry industry has been accompanied by the emergence of a large variety of pathogens and bacterial resistance due to the increase in production scales and the use of Antibiotic Growth Promoters (AGP). As a result, poultry become more sensitive to harmful bacteria such as Escherichia Coli, Salmonella spp., Clostridium perfringens and Campylobacter jejunum. There are considerable numbers of...
Increasingly, feed additives for livestock, such as amino acids and vitamins, are being produced by Gram-negative bacteria, particularly Escherichia coli. The potential therefore exists for animals, consumers and workers to be exposed to possibly harmful amounts of endotoxin from these products. The aim of this review was to assess the extent of the risk from endotoxins in feed additives and to...
A confirmatory method has been developed to allow for the analysis of fourteen prohibited medicinal additives in pig and poultry compound feed. These compounds are prohibited for use as feed additives although some are still authorised for use in medicated feed. Feed samples are extracted by acetonitrile with addition of sodium sulfate. The extracts undergo a hexane wash to aid with sample puri...
Mycotoxins are metabolites of moulds that may be found in food and feed of plant and animal origin. This paper gives a short review of the agronomical methods and food and feed storage recommendations for the prevention of mould contamination. It describes the practical methods of feed decontamination and the use of feed additives where mycotoxin contamination prevention has failed. However, th...
treat diseases, improve the efficiency of feed utilization and feed acceptance, or to be beneficial to the health or metabolism of the animal in some way. They typically are administered to pigs through the feed, water or by injection. Feed additives can be divided into two broad categories, subtherapeutic (less than 200g/ton and for more than 14 days) and therapeutic (more than 200g/ton of fee...
Objective: Since the ban of antibiotics as growth promoting feed additives in the EU in 2006 research in alternatives has gained importance. Phytogenic feed additives represent a heterogenous class of different plant derived substances that are discussed to improve the health of farm animals by direct and indirect antioxidant effects and by influencing microbial eubiosis in the gastrointestinal...
The effects of some alternative feed additives for antibiotic growth promoters on performance and some slaughter characteristics were examined in broilers fed wheat-soya based basal starter and finisher diets. A total of 2160 one-day-old male broiler chicks were randomly allocated to six groups with six replicate pens per treatment. The treatments were the basal diet (Control), and the basal di...
BACKGROUND Recently, the presence of an unauthorized genetically modified (GM) Bacillus subtilis bacterium overproducing vitamin B2 in a feed additive was notified by the Rapid Alert System for Food and Feed (RASFF). This has demonstrated that a contamination by a GM micro-organism (GMM) may occur in feed additives and has confronted for the first time,the enforcement laboratories with this typ...
Piglets are highly susceptible to enteric disorders immediately after weaning. Piglets have then an immature digestive system, whose capacity for nutrient digestion is impaired by the transition from high quality liquid milk to a solid diet. Diarrhea is common post-weaning and is characterised by reduced digestive capacity in young pigs leading to poor growth performance (Pluske et al., 1997). ...
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