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| Registros recuperados: 95 | |
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| Lawrence, John D.; Ibarburu, Maro A.. |
| Cattle production is the largest single agricultural sector in the U.S. with cash receipts of $49.2 billion in 2005. Like the rest of agriculture cattle producers have adopted efficiency and quality improving technology to meet consumer demands for a safe, wholesome, and affordable food supply. This research uses meta analysis to combine over 170 research trials evaluating pharmaceutical technologies in the cow-calf, stocker, and feedlot segments of beef production. These results were used to estimate the farm level economic value of parasite control, growth promotant implants, sub-therapeutic antibiotics, ionophores, and beta agonists for the industry in 2005. The Food and Agriculture Policy Research Institute (FAPRI) model of U.S. agriculture was used to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Cattle; Production cost; Growth promotants; Ionophores; Antibiotics; Parasite control; Beta-agonists. |
| Ano: 2007 |
URL: http://purl.umn.edu/37560 |
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| Wineland, Nora. |
| In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states. The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were 82,040 operations with sheep as of 1995;... |
| Tipo: Report |
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/32743 |
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| Bernard, John C.; Pesek, John D., Jr.; Pan, Xiqian. |
| Typical supermarket chickens are produced with novel or controversial attributes. This continues despite contrasting growth in consumer interest in organic and natural foods. This study surveyed Delaware consumers’ likelihood to purchase chicken given different attributes: free range, given antibiotics, irradiated, fed genetically modified (GM) fee, GM chicken, and price. Examining conjoint analysis data with a heteroskedastic two-limit tobit model, GM chicken and other novel attributes were found to lower purchase likelihood significantly. Understanding these results should help the industry meet consumer preferences while aiding its continued expansion to benefit workers and growers across the South. |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Chicken; Conjoint analysis; Genetically modified; Heteroskedastic; Irradiated; Tobit; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; Q13; D12; C24. |
| Ano: 2007 |
URL: http://purl.umn.edu/6058 |
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| Miller, Gay Y.; Liu, Xuanli; McNamara, Paul E.; Bush, Eric J.. |
| Antibiotics have been used by pig producers for several decades, and are now used routinely. This study documents the current productivity and economic impacts of the use of antibiotics for growth promotion (AGP) by pig grower/finishers at the farm level. We evaluate the impacts of an AGP ban, and use of AGP by all pig grower/finishers for 61S90 days (a more production-efficient level), using data from the National Animal Health Monitoring System Swine 2000 Survey. Findings indicate that pig productivity improves with AGP. Relative to current use, an AGP ban would decrease producer profits by $1,400 per 1,020-head barn, and profits would increase by $1,992 for each grower/finisher barn when AGP is fed for 61 to 90 days. There is increasing concern about... |
| Tipo: Journal Article |
Palavras-chave: Antibiotics; Antimicrobial resistance; Growth promotion; Pigs; Production; Agricultural and Food Policy; Health Economics and Policy; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/59680 |
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| Dargatz, David. |
| The NAHMS Cattle on Feed Evaluation (COFE) was designed to provide both participants and the industry with information on the nation's feedlot animal population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid producer sample (3,214 producers) to provide inferences to the nation's feedlot animal population. Included in the study were 13 states that accounted for 85.8 percent of the U.S. cattle-on-feed inventory as of January 1, 1994. State and Federal Veterinary Medical Officers (VMO's) collected data from feedlots of 1,000 head or more capacity through personal interviews from October 3 through December 21, 1994, for Part II. Contact for this paper: David... |
| Tipo: Report |
Palavras-chave: NAHMS; Beef; Feedlot cattle; Antibiotics; Injections; Vaccinations; Parasites; Livestock Production/Industries. |
| Ano: 1995 |
URL: http://purl.umn.edu/32759 |
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| LIMA,MARCELO AGUIAR COSTA; GARCIA,RENATA DE OLIVEIRA; MARTINS,GILBERTO SACHETTO; MANSUR,ELISABETH. |
| Foi avaliada a morfogênese in vitro a partir de explantes de folha imatura excisados de plantas de duas variedades nacionais (RB739735 e RB72454) de cana-de-açúcar (Saccharum officinarum L.), mantidas em campo. Os explantes foram obtidos de plantas com 6-9 meses e cultivados em meio MS sólido suplementado com 2,4-D a 9 miM. As culturas foram mantidas no escuro, durante quatro semanas. A eficiência de formação de calos foi influenciada pelo genótipo. Os calos derivados da variedade RB72454 eram mucilaginosos e não originaram plantas. Explantes da variedade RB739735 formaram calos amarelos friáveis e embriogênicos (tipo II), que mantiveram sua capacidade proliferativa por, pelo menos, seis meses. Após transferência para meio MS sem reguladores de crescimento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugarcane; Antibiotics; In vitro morphogenesis. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000100008 |
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| Ghazanfari,S; Mohammadi,Z; Adib Moradi,M. |
| ABSTRACT Present study was conducted to investigate the effects of the dietary supplementation of coriander oil on broiler performance, blood characteristics, microbiota, and small intestine morphology measurements. A number of one-day-old broiler chickens (Ross 308) were allocated to five treatments, with four replicates according to a completely randomized design (CRD). Birds were offered either a corn-soybean meal basal diet (control), or the basal diet supplemented with 600 mg/kg of a flavophospholipol antibiotic, 100, 200, or 300 mg/kg coriander essential oil. At 42 days of age, two birds per replicate were selected for blood collection, slaughtered, and its intestinal microbiota and morphology were investigated. The results indicated that weight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative growth promoters; Antibiotics; Broiler; Extract; Performance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400419 |
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| Barbosa,Lima R; Figueiredo-Lima,DF; Givisiez,PEN; Rabello,CBV; Gonzales,E; Silva,JHV. |
| The use of probiotics in animal and human feeding has been a subject of increasing interest both for the academia and the industry, mostly due to their potential positive effects on health and profitability. However, the knowledge on the composition of bacterial gastrointestinal communities in humans and animals, as well as its respective nutritional requirements, is far from being elucidated. Due to the ban of the use of antibiotic growth promoters in animal feeds, there has been an increasing interest on the utilization of probiotics to improve animal intestinal health under commercial settings. However, the possibility of horizontal transference of antibiotic-resistant genes between probiotic bacteria and pathogenic species has become a concern of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibiotics; Microbiota; Prebiotics; Probiotics; Phytogenics. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400001 |
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| Meurer,Régis Fernando Pastorelo; Leal,Paula Carvalho; Rocha,Chayane da; Bueno,Ivânio José Martins; Maiorka,Alex; Dahlke,Fabiano. |
| This work was carried out to evaluate the use of Bacillus subtilis probiotic C-3102 (10(10)cfu/g) in diets with or without growth promoters on the performance of broilers in the period from 1 to 42 days of age. It was used 1,200 Cobb line broilers, distributed in a complete randomized block with five diets: negative controller (without promoters); Bacillus subtilis (30 g/t ration); Bacillus subtilis (50 g/t ration); Bacillus subtilis (30 g/t ration) + colistin (10 ppm); avilamycin (10 ppm) + colistin (10 ppm). Each diet was evaluated in 10 repetitions with 24 birds. From 21 to 42 days of age, feed intake, weight gain and feed conversion were evaluated, and at 42 days of age, productive efficiency index was evaluated. At the end of the experimental period,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additives; Alternative products; Antibiotics; Performance. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001200019 |
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| Bitterncourt,Letícia Cardoso; Silva,Claudia Cassimira da; Garcia,Paula Duarte Silva Rangel; Donato,Daniella Carolina Zanardo; Albuquerque,Ricardo de; Araújo,Lúcio Francelino. |
| The objective of the present study was to evaluate the influence of a probiotic product (composition: Lactobacillus acidophillus (3.5 × 10(11) CFU), Streptcoccus faecium (3.5 × 10(11) CFU) and Bifidobacterium bifidum (3.5 × 10(11) CFU)) on broiler performance. A total of 1200 one-day-old broilers were reared until 42 days of age, and distributed in a completely randomized experimental design with 3 treatments (antibiotic, probiotic and control) with 10 replicates of 40 birds each. Weight gain, feed intake, feed conversion ratio and mortality were evaluated. Concerning weight gain, in the periods of 0-7 and 0-14 days of age, the group fed the antibiotic product presented higher values as compared with the other treatments. However, in the periods of 0-21,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additives; Antibiotics; Growth promoter; Nutrition. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200018 |
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| Fascina,Vitor Barbosa; Sartori,José Roberto; Gonzales,Elisabeth; Carvalho,Fabyola Barros de; Souza,Ivan Mailinch Gonçalves Pereira de; Polycarpo,Gustavo do Valle; Stradiotti,Ana Cristina; Pelícia,Vanessa Cristina. |
| The experiment evaluated the influence of isolated or associated phytogenic additives (PA) and organic acids (OA) on nutrient digestibility, performance and carcass characteristics of broiler chickens. Two experiments were conducted in a completely randomized design with a 2 × 2 + 1 factorial arrangement of treatments (with or without PA × with or without OA + antibiotic performance enhancer and anticoccidial). In the first experiment, two metabolic tests were conducted to determine the metabolizability coefficients of the nutrients of starter and growth diets. In the second experiment, 2520 one-day-old chicks were housed in 40 experimental units to evaluate the performance and carcass characteristics. The phytogenic additives and organic acids, isolated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidifier; Additive; Antibiotics; Herbal extract; Metabolism; Sanitary challenge. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000008 |
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| Olguín,Hugo Juárez; Portugal,Miriam Carrasco; Pérez,Janett Flores; Vieyra,Angélica Camacho; Pérez,Carmen Flores; Rodríguez,Alfonso Alfaro. |
| The study analyzed the effect of mannitol on the pharmacokinetics (PK) of amikacin. Adult Wistar rats were treated as follows: Group 1 (G1) received mannitol for three days, Group 2 (G2) received mannitol plus 10 mg/kg of amikacin simultaneously, and Group 3 only amikacin. The PK study was conducted on the 4th day. For which, blood samples were drawn at fixed times during 24 h and immunoenzymatically analyzed. Results revealed significant differences (p<0.05) between the groups, e.g. Cmax were 62.26 ± 15.75 µg/ml for G1, 72.63 ± 24.80 µg/ml for G2 and 68.61 ± 27.40 µg/ml for G3. The AUC also differed in the three groups, being largest for G2, 222.52 ± 47.30 µg/ml/h, and smallest for G1, 135.59 ± 39.00 µg/ml/h. Alteration of the PK parameters observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pharmacokinetics; Interactions; Amikacin; Mannitol; Antibiotics; Diuretics. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400006 |
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| Dutta,Devanushi; Puzari,Keshab Chandra; Gogoi,Robin; Dutta,Pranab. |
| Endophytes are symptomless fungal or bacterial microorganisms found in almost all living plant species reported so far. They are the plant-associated microbes that form symbiotic association with their host plants by colonizing the internal tissues, which has made them valuable for agriculture as a tool in improving crop performance. Many fungal endophytes produce secondary metabolites such as auxin, gibberellin etc that helps in growth and development of the host plant. Some of these compounds are antibiotics having antifungal, antibacterial and insecticidal properties, which strongly inhibit the growth of other microorganisms, including plant pathogens. This article reviews the endophyte isolated from different plants, mode of endophytic infection and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibiotics; Auxin; Endophytism; Insecticidal; Symbiotic. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500621 |
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| Registros recuperados: 95 | |
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