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Registros recuperados: 7
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An application of Data Envelopment Analysis (DEA) to Evaluate Economic Efficiency of Poultry Farms in Bangladesh AgEcon
Begum, Ismat Ara; Buysse, Jeroen; Alam, Mohammad Jahangir; Van Huylenbroeck, Guido.
This study estimates the technical, allocative and economic efficiency obtained from the Data Envelopment Analysis (DEA) approach using farm level survey data to a sample of 100 poultry farmers in Bangladesh for the year 2007. The results from the DEA approach show that there is substantial technical, allocative and economic inefficiency in poultry production in Bangladesh. The results of the study reveal that under constant return to scale (CRS) and variable returns to scale (VRS) specification, on average, the farms technical, allocative and economic efficiencies were 88%, 70%, 62% and 89%, 73%, 66% respectively. Thus the results indicate that efficiency scores vary substantially across the sampled farms. To explain some of these variations, the...
Tipo: Conference Paper or Presentation Palavras-chave: Economic efficiency; DEA; Poultry farms; Farm Management; Livestock Production/Industries; Production Economics.
Ano: 2009 URL: http://purl.umn.edu/50900
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Assessment of the risks of rats (Rattus norvegicus) and opossums (Didelphis albiventris) in different poultry-rearing areas in Argentina BJM
Villafañe,Isabel E. Gómez; Miñarro,Fernando; Ribicich,Mabel; Rossetti,Carlos A.; Rossotti,Daniel; Busch,María.
We have studied the prevalence of Trichinella spiralis, Leptospira spp. and Salmonella spp. in rats and opossums that inhabit poultry farms of Exaltación de la Cruz, Buenos Aires, Argentina, to determine the potential sanitary risk for humans that are in contact with these animals. The study was carried out on 48 poultry farms between spring 1999 and winter 2001. The study of opossums began in winter 2000. During the study period we captured 152 Rattus norvegicus, 3 Rattus rattus, 16 Didelphis albiventris and 1 Lutreolina crassicaudata. We have registered the presence of rats and opossums in 70% and 27% of the studied farms, respectively. The percentage of farms with rats was independent of the presence or absence of pigs. We did not detect the presence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zoonosis; Salmonella; Poultry farms; Rats; Opossum.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300017
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Consumption Pattern of Bromadiolone in Presence of Alternative Food by House Mice (Mus musculus) Infesting Poultry Farms Rev. Bras. Ciênc. Avic.
Aristegui,E; Miño,MH; Mansilla,PR; Guidobono,JS; Cueto,GR.
ABSTRACT Poultry farms in Central Argentina are often infested by Mus musculus L., despite the regular application of the rodenticide bromadiolone. This failure may be explained by the consumption pattern of mice, which may prefer alternative foods available on the farms to bromadiolone baits. Here we examine the consumption pattern of bromadiolone in the presence of wheat by M. musculus infesting poultry farms compared with the laboratory CF1 mouse strain. Overall, the poultry farm mice had longer survival and lower total food consumption in comparison with the CF1 mice. On the first day of the experiment, rodents from both strains and sexes consumed bromadiolone in the same proportion as wheat. On the second day, female mice of both origins showed a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poultry farms; Mus musculus; Rodent control; Rodenticides.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100095
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Movements of Norway rats (Rattus norvegicus) in two poultry farms, Exaltación de la Cruz, Buenos Aires, Argentina Mastozool. neotrop.
Gómez Villafañe,Isabel E.; Muschetto,Emiliano; Busch,María.
The aim of this work was to study the range of movements of Norway rats in two poultry farms in Exaltación de la Cruz, Buenos Aires Province. Three female and three male rats were followed by radio-telemetry. The mean home range was 0.024 ha (0.0024 to 0.0525 ha) and the mean maximum distance between localization points was 33.70 m (10 m to 66 m). The maximum daily movement registered was 65 m. Individuals captured near sheds or pigpens did shorter displacements than those captured on the perimeter of each farm. Our results indicate that Norway rats moved only short distances in poultry farms.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Home range; Movements; Poultry farms; Radio-tracking; Rodentia.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832008000200007
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Respiratory and Other Health Risks among Poultry-Farm Workers and Evaluation of Management Practices in Poultry Farms Rev. Bras. Ciênc. Avic.
Hamid,A; Ahmad,AS; Khan,N.
ABSTRACT The current study was conducted on eight poultry farms in Lahore and Sheikhupura to monitor environmental conditions, determine workers’ health status and assess the implementation of standard management practices. Environmental monitoring, a health questionnaire survey and a respiratory function test were carried out. Seventy-one respondents were selected for the health assessment survey and lung function test. The results showed that the evaluated air-quality parameters, except for temperature and humidity, were well below the permissible occupational limits. Maximum temperature recorded was 32.75 ºC, while the highest humidity level was 85.5%. Farms were shown to be compliant with standard guidelines and management practices. The workers’...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Best management practices; FEV/FVC; Occupational hazards; Poultry farms; Spirometry..
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100111
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SURVEILLANCE FOR NEWCASTLE DISEASE VIRUS, AVIAN INFLUENZA VIRUS AND MYCOPLASMA GALLISEPTICUM IN WILD BIRDS NEAR COMMERCIAL POULTRY FARMS SURROUNDED BY ATLANTIC RAINFOREST REMNANTS, SOUTHEASTERN BRAZIL Rev. Bras. Ciênc. Avic.
Guimarães,MB; Hurtado,R; Bello,CP; Vanstreels,RET; Ferreira,AJP.
ABSTRACT The geographic overlap between areas of Atlantic rainforest and human activities allows interactions to occur between humans and wild and domestic animals. Despite the great importance of the domestic animal-wildlife-human interface that occurs at poultry farms in terms of public health, economic production and wildlife conservation, there are few studies in Brazil examining the distribution and health of wild birds that interact with poultry farms. From January to December 2010, mist nets were used to capture 166 free-ranging birds that were within close proximity to three poultry farms in Atlantic rainforest remnants in south-eastern Brazil. The species composition was examined, and molecular methods were used to test for avian influenza virus,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Surveillance; Atlantic rainforest; Poultry farms; Wild birds; Influenza virus; Newcastle disease virus; Mycoplasma gallisepticum.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300387
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Using nonparametric analysis (DEA) for measuring technical efficiency in poultry farms Rev. Bras. Ciênc. Avic.
Heidari,MD; Omid,M; Akram,A.
The objective of this study was to determine the economic efficiency of resource utilization in broiler production farms using a non-parametric production function, data envelopment analysis (DEA). Data for the analysis were collected from a cross section of 44 farmers using a multi-stage sampling procedure. In DEA models the farmers that produce their level of output with the least amount of input serve as benchmarks against which the input use inefficiency of all other farmers can be measured. The total variable costs, net return and benefit cost ratio were calculated to be 3506.29 $ (1000 bird)-1, 1386.53 $ (1000 bird) -1 and 1.38, respectively. The average values of technical and scale efficiencies of farmers were found to be 0.92 and 0.93. The results...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Data envelopment analysis; Economic; Feed cost; Poultry farms; Technical efficiency.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400009
Registros recuperados: 7
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