Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"Growth promoters"”.
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Impact of virginiamycin on the development of intestinal structure and functional capacity in growing pigs
… Understanding the mechanisms behind antibiotic growth promoters is an important step in determining the safety of in-feed antibiotics. Our study tested the hypothesis that diets with virginiamycin would increase intestinal surface area and nutrient processing capacity compared with diets without …
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Effect of a Fermented Yeast Product on the Gastrointestinal Tract Microbial Diversity of Weaned Pigs Challenged With Salmonella Enterica Typhimurium Dt104
… offers an alternative to antimicrobial growth promoters by stimulating key populations of the GIT bacteria that can ferment these non-digestible compounds, producing various short chain fatty acids used by the animal. The objective of this study was to quantify the effects of a …
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Isolation and biological characterisation of plant-derived chemicals for antibacterial purposes in food animals and humans
… the food chain. Recently the use of antibiotic growth promoters for the prevention of animal disease and growth promotion was banned in the EU as a part of measures geared toward preventing emergence of resistance to antibiotics especially those used in human medicine. This EU-wide ban has …
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The effects of yarrow (<i>Achillea millefolium</i>) and herbal supplements on growth performance and nutrient utilisation of broiler chickens
The use of antimicrobial growth promoters in European poultry production will be banned in 2006, which has made it economically viable to investigate the use of other acceptable compounds, such as botanical products. Botanical products have a wide range of known pharmacological effects which could …
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A Molecular Approach to Understanding the Effects of Original-XPC on the Modulation of the Cecal Microbiota and the Survival of Salmonella in the Poultry Host
… levels of antibiotics (also known as antibiotic growth promoters; AGP) from poultry due to concern over antibiotic-resistant bacteria spreading to the human population. Therefore, various feed additives have been researched for their ability in providing protection against harmful pathogens and …
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Intestinal Inflammation Model Inducing Gut Leakage by Different Methods in Broiler Chickens Using FITC-d as a Marker
<p>Traditionally, antibiotic growth promoters (AGP) have been used in food animals to reduce enteric inflammation and maintain intestinal homeostasis, thus improving performance. Due to increasing restrictions regarding the use of AGP, precise and high throughput enteric inflammation models and …
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Hormonal therapies during recovery from neonatal malnutrition in rats
Malnutrition leads growth stunting and low serum insulin-like growth factor-I (IGF-I) concentration in humans and animals. Nutritional repletion alone does not support the full body wt recovery or normalize serum IGF-I concentrations. As growth-promoters and anabolic agents, growth hormone (GH) and …
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Occurrence, Fate and Transport of the Primary Metabolites of Trenbolone Acetate in CAFO Soils and Surface Water Runoff
Metabolites of synthetic growth promoters used in industrial cattle production pose a demonstrated ecological risk to waterways adjacent to beef feedlot operations. For example, numerous studies have linked reproductive abnormalities in fish species to the presence of 17-α trenbolone and 17-β …
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The effects of a yeast probiotic, saccharomyces cerevisiae boulardii, on common sow stressors and their effect on maternal-fetal programming
… 2016). The European-wide ban on antibiotics as growth promoters initially has had detrimental effects with reported increased morbidity and mortality in pigs, increases in enteric infections leading to increases in clinical diarrhea, and reduced weight gains (Hao et al., 2014). The utilization …
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Broiler Performance and Intestinal Alterations When Fed Drug-Free Diets
… 1) negative control (NC): basal diet without growth promoter or coccidiostat; 2) positive control (PC): diet 1 + Lincomycin; 3) Program 1 (PG1): diet 1 + Bio-Mos®, Vegpro®, MTB-100®, Acid Pak 4-Way®, and All-Lac XCL®; 4) Program 2 (PG2): diet 1 + Bio-Mos® and All-Lac XCL®. Additives …
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Growth Characteristics of Bifidobacteria in Infant Formulas
… similar (P> .05) trends. Results suggest that growth characteristics of bifidobacteria in infant formula were strain specific and that maximum growth occurred in milk-based formula. In another experiment growth promoters, lactulose and fructooligosaccharides (FOS), were inoculated at .5% into …
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Untersuchungen zum Einsatz Seltener Erden als Leistungsförderer beim Schwein
Studies on the effect of rare earth elements as growth promoter in pigs In China, rare earth elements were used in agriculture already for some decades. Rare earth elements are 17 elements which include scandium, yttrium, lanthanum and the 14 lanthanides. They were used as fertilizer in plant …
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Evaluation and Selection of a Bacillus based Direct-Fed Microbial Candidate for In situ Enzyme Production to Improve Gut Health Integrity, Bone Quality and Growth Performance in Poultry
… Social concerns regarding the use of antibiotic growth promoters (AGP) and the development of antibiotic resistant microorganisms. One alternative among others is the utilization of direct-fed microbials (DFM) as substitutes of AGP and also as a prophylactic practice to reduce the incidence of …
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Coated butyric acid and C12 monoglyceride supplementation of broiler feed to improve performance and gut health
… were sectioned from the gut. Results showed that growth was not significantly different between the treatments.The feed intake showed no significant difference either, but the birds that were not supplemented with the Zinc Bacitracin showed a lower FI (3747 g) compared to the group with Zinc …
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The interaction between dietary crude protein and amino acid levels in weaner pigs in an antibiotic-free environment with or without Bacillus amyloliquefaciens supplementation
… themselves as increased diarrhoea and reduced growth performance in weaner pigs. Many of the negative consequences could in the past be rectified through the use of antibiotic growth promoters (AGPs). However, AGPs are becoming more closely scrutinised by the general public and government …
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Chemically Induced Phytoextraction of Lead (Pb) Contaminated Soil by Switchgrass (Panicum virgatum L.)
… chemistry manipulation, using chelates and plant growth promoters could provide an effective field method for phytoremediation using switchgrass. In this study chemically enhanced phytoextraction using the soil-fungicide Infuse (active ingredient propiconazole), the chelator nitrilotriacetic acid …
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Impact of dietary fiber and exogenous carbohydrases in weaned pigs
… negative effects on nutrient utilization and growth performance of young pigs, exogenous carbohydrases are widely used. However, the results regarding the impact of carbohydrases on performance have been inconsistent and a better understanding of associated mechanisms of carbohydrases in pigs …
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Managing Poultry Gut Integrity, Immunity and Microbial Balance During Necrotic Enteritis
… with low mortality rates. The use of antibiotic growth promoters (AGPs) is proving to be an effective tool in maintaining gut health and modifying gut microbiota, thus improving broiler performance and reducing NE. Removal of AGPs has led to an increase in NE occurrence, particularly the …
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Toxicology of endocrine disrupting chemicals
… current use pesticides, pharmaceutical agents, growth promoters and personal care products, metals and organometallic chemicals, natural hormones and phytoestrogens. Sources of exposure include point sources from industries and homes, and diffuse sources from agricultural farm lands and …
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Regulation of Intestinal Development and Function in Early-Life Pigs
… on overall health and productivity. Attenuated growth performance and feed efficiency may exacerbate production losses and have significant economic implications on the swine industry. Historically, the industry used in-feed antibiotics as growth promoters, but their ban has left the need for …
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