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| Registros recuperados: 123 | |
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| Dungan, R.S.; Leytem, A.B.; Bjorneberg, D.L.. |
| In this study, we monitored total airborne endotoxins at upwind and downwind sites at a large open-lot dairy each month for a year. At the upwind site, the average airborne concentration was 28.5 endotoxin units (EU) m-3, while at the downwind edge of the lot and 200 m from the lot edge, the average concentrations were 169 and 72 EU m-3, respectively. At the downwind edge of the lot, there was a significant correlation between the airborne endotoxin concentration and wind speed or air temperature. A comparison between total and inhalable airborne endotoxin concentrations, near the end of the study, revealed no significant differences between the two endotoxin collection methods. Our data suggest that endotoxin exposure can be reduced as one increases their... |
| Tipo: Article |
Palavras-chave: Animal. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1368/1/1351.pdf |
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| Ippolito, J.A.. |
| Dairies utilize copper sulfate (CuSO4) foot baths to control hoof infections. Typical solutions are 5 or 10% CuSO4 (pH ~6), equal to 12,500 or 25,000 ppm Cu, respectively. When spent, hoof bath solutions are usually disposed of in waste lagoons and subsequently utilized for irrigation. In the Magic Valley, this practice appears to be causing soil Cu concentrations to increase. The goal of our research was to use local waste products to sequester Cu from a simulated hoof bath solution and to use waste products to adsorb excessive Cu from Cu-affected soils. |
| Tipo: Technical Bulletin |
Palavras-chave: Animal; Chemistry. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1365/1/1342.pdf |
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| Leytem, A.B.; Seefeldt, S.S.. |
| Sheep and lamb production is an important industry in Idaho, with summer sheep grazing in the mountains a common practice. Sheep are concentrated in bedding areas at night leading to concentrated grazing and manure and urine accumulation in these areas. To address the effects of bedding on soil nutrient status, we monitored 16 bedding areas in the Centennial Mountains, with a general survey performed in 2004 followed by more intense monitoring of six sites from 2005 to 2006. In 2004, soils were analyzed for total carbon (C) and nitrogen (N), organic C, total P, Olsen P, water-soluble phosphorus (WSP), soluble nitrate, and soluble ammonium. Over the period 2005–2006, soils were analyzed for soluble nutrients including Olsen P, WSP, soluble... |
| Tipo: Article |
Palavras-chave: Animal. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1322/1/1299.pdf |
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| Leytem, A.B.; Kwanyuen, P.; Thacker, P.A.. |
| Increased interest in ethanol production in North America has led to increased production of distillers dried grains with solubles (DDGS), the majority of which are fed to livestock. To determine the impact of including wheat DDGS in broiler diets on nutrient excretion and P characterization and solubility, 125 one-day-old male broiler chicks were fed wheat and soybean meal-based diets containing 0, 5, 10, 15, or 20% wheat DDGS. There were 5 replicate pens per treatment, with 5 birds per pen arranged in a randomized block design. Apparent retention of both N and P were determined by using the indicator method. Nutrients excreted per kilogram of DM intake were also calculated. Characterization of excreta P was determined by 31P-solution... |
| Tipo: Article |
Palavras-chave: Animal; Phosphorous; Chemistry. |
| Ano: 2008 |
URL: http://eprints.nwisrl.ars.usda.gov/1326/1/1303.pdf |
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| Leytem, A.B.; Taylor, J.B.; Raboy, V.; Plumstead, P.W.. |
| Greater production demands for ruminants require increased dietary inclusion of high-energy feeds. Grains and oil seeds are most commonly used to enhance diet energy density. However, use of such feeds proportionally increases the amount of dietary phytate phosphorus (P), which the ruminant may not be able to fully utilise. Our objectives for this study were to determine the extent of phytate degradation and mineral digestion in wethers fed high-grain diets consisting of either a non-mutant or low-phytate mutant barley grain. In two separate experiments, mature Columbia wethers (n = 7) fitted with rumen and duodenal cannulas and Columbia × Polypay wether lambs (n = 8) were individually fed one of two finishing diets formulated with either non-mutant... |
| Tipo: Article |
Palavras-chave: Animal health; Animal. |
| Ano: 2007 |
URL: http://eprints.nwisrl.ars.usda.gov/1282/1/1259.pdf |
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| Leytem, A.B.; Dungan, R.S.; Bjorneberg, D.L.. |
| The volatilization of NH3 from dairy production facilities is not only a loss of valuable N, but also an air quality concern because NH3 plays a role in the formation of airborne particulate matter, which can be a health hazard. The ambient NH3 concentrations over several seasons at 3 locations (open lots, compost yard, lagoon) throughout a large openlot dairy were determined, as well as the spatial distribution of NH3 over the open-lot area. There was a significant main effect of location (P < 0.0001), which followed the trend of lot > lagoon = compost > background, with averages of 0.58, 0.33, 0.30, and 0.04 mg NH3/m3, respectively. The effect of weather and lot conditions on the spatial distribution of NH3 across the lots was evident, with... |
| Tipo: Article |
Palavras-chave: Manure; Soil; Animal. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1367/1/1344.pdf |
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| Massey, M.S.; Ippolito, J.A.; Davis, J.G.; Sheffield, R.E.. |
| Phosphorus (P) recovery and re-use will become increasingly important for water quality protection and sustainable nutrient cycling as environmental regulations become stricter and global P reserves decline. The objective of this study was to examine and characterize several magnesium phosphates recovered from actual wastewater under field conditions. Three types of particles were examined including crystalline magnesium ammonium phosphate hexahydrate (struvite) recovered from dairy wastewater, crystalline magnesium ammonium phosphate hydrate (dittmarite) recovered from a food processing facility, and a heterogeneous product also recovered from dairy wastewater. The particles were analyzed using ‘‘wet” chemical techniques, powder X-ray diffraction... |
| Tipo: Article |
Palavras-chave: Manure; Animal; Chemistry. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1338/1/1315.pdf |
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| Leytem, A.B.; Dungan, R.S.; Bjorneberg, D.L.; Koehn, A.C.. |
| Concentrated animal feeding operations emit trace gases such as ammonia (NH3), methane (CH4), carbon dioxide (CO2), and nitrous oxide (N2O) to the atmosphere. The implementation of air quality regulations in livestock-producing states increases the need for accurate on-farm determination of emission rates. The objective of this study was to determine the emission rates of NH3, CH4, CO2, and N2O from three source areas (open-lots, lagoon, compost) on a commercial dairy located in southern Idaho. Average emissions per cow per day from the open-lots were 0.12 kg NH3, 0.49 kg CH4, 26.9 kg CO2, and 0.01 kg N2O. Average emissions from the lagoon (g per m square per day) were 1.5 g NH3, 132 g CH4, 391 g CO2, and 0.36 g N2O. Average emissions from the compost... |
| Tipo: Article |
Palavras-chave: Manure; Animal; Chemistry. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1392/3/1365.pdf |
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| Leytem, A.B.; Willing, B.P.; Thacker, P.A.. |
| Eighty, 12-day-old, male broiler chicks, were fed one of four diets to determine the effects of feeding grains varying in phytate phosphorus (P) and intrinsic phytase activity on ileal and excreta P digestibility and composition. The diets contained approximately 970.7 g grain kg?1 (maize, high fat–low lignin oat, normal barley or low-phytate barley) with the cereal supplying the sole source of dietary P. The diets were fed for a 7-day acclimation period followed by a 2 day excreta collection while ileal digesta was collected at slaughter on day 21. The coefficients of ileal apparent digestibility (CIAD) for P and phytate P ranged from 0.79 (normal barley) to 0.86 (maize and low-phytate barley) and 0.76 (low-phytate barley) to 0.89 (maize),... |
| Tipo: Article |
Palavras-chave: Soil; Animal; Chemistry. |
| Ano: 2008 |
URL: http://eprints.nwisrl.ars.usda.gov/1323/1/1300.pdf |
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| Rushton, Jonathan. |
| This Working Paper presents a framework for assessing the impact of livestock diseases on the household economy and at local level. The framework is designed to help decision and policy makers in their selection of pro-poor livestock interventions. It should also help to protect them from making decisions under unwanted pressure from strong, non-objective political voices. The immediate users of the assessment methods presented in the Working Paper are expected to be consultants who have to evaluate interventions on behalf of their clients. These clients may be multi and bi lateral donors and, possibly, NGOs. Other users of the output could be governments receiving aid and communities receiving support. The author has drawn upon past experience to... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Livestock; Animal; Production; Health; Interventions; Prioritisation; Modelling; Households; Bolivia; Kenya; India; Livestock Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/23769 |
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| Reis-Silva, Thiago; Lima, Ana Paula; Moreira, Natalia; Calefi, Atilio; Sandini, Thaísa Meira; Florio, Jorge Camilo; Bernardi, Maria Martha. |
| High and low immobility on the tail suspension test is a common tool for assessing antidepressant drug effects. However, those parameters might be a natural phenotype present in the mice population and could be selected through behavior evaluation without an induced-drug behavior need. High immobility has been also related to depressed-like behavior, that in humans are characterized by wide range of symptoms, such as anhedonia, anxiety and tiredness. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stress; Mice; Behavior; Animal. |
| Ano: 2016 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/31107 |
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| Gomes, Luciana Hardt; de Almeida, Marilene Fernandes; Paranhos, Noêmia Tucunduva; Garcia, Rita de Cássia; Nunes, Vânia de Fátima Plaza; Montenegro Neto, Hildebrando; Cardoso, Sônia Maria Sodré. |
| Objective: To carry out a situational diagnosis of interactions among man, animal and environment, to test intervention and control model in dogs and cats and lo make local population aware in order to improve human and animal health. Material and Method: The project "Evaluation of risks to the heath and local intervention associated to living together with dogs and cats" was carried out in the area invaded in Jardim Paraná, District of Brasilândia, São PauLo city, Brazil, in 2003 by the Center of Zoonosis Control of the São Paulo Municipality. Animal census, vaccinations, treatment of ectoparasitosis and endoparasitosis, animal register, animal sterilization, serological and soil examinations and removal of animals was carried through. Forty seven percent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zoonoses; Community health; Local planning; Animal health; Environment; Risk factors; Human; Animal; Interactions; Intervention; Population control; Sterilization; Dogs; Cats Zoonosis; Planificación en salud comunitaria; Estrategias locales; Salud animal; Medio ambiente y salud publica; Factores de riesgo; Hombres; Animales; Vínculo ser humano-animal; Estudios de intervención; Regulación de la población zoonoses; Planejamento em saúde comunitária; Estratégias locais; Saúde animal; Meio ambiente e saúde pública; Fatores de risco; Homens; Animais; Vínculo homem-animal; Estudos de intervenção; Controle da população; Esterilização reprodutiva; Cães; Gatos. |
| Ano: 2003 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3262 |
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| Registros recuperados: 123 | |
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