نتایج جستجو برای: on farm

تعداد نتایج: 8422786  

2017
Jacob D. Grunnet Mohsen Soltani Torben Knudsen Martin Kragelund Thomas Bak

This paper presents the wind farm simulation model developed in the EU-FP7 project, AEOLUS. The idea is to provide a publicly available simulation package for researchers developing farm level control solutions. With the software it is possible to auto generate a wind farm simulation model in Matlab/Simulink based on turbine parameters and farm geometry. The input to the farm simulator is power...

Journal: :Applied animal behaviour science 2000
Takeda Sato Sugawara

The objective of the present study was to investigate optimal group size in cattle in communal pastures where cattle from various farms are turned out: (1) to ascertain if cows derived from each farm form an affiliative group and (2) to investigate the effect of the number of farm mates on social and maintenance behaviours when farm mates form an affiliative group. Farm mates were defined as co...

Journal: :The Annals of occupational hygiene 2007
Brian D Curwin Misty J Hein Wayne T Sanderson Cynthia Striley Dick Heederik Hans Kromhout Stephen J Reynolds Michael C Alavanja

In the spring and summer of 2001, 47 fathers, 48 mothers and 117 children of Iowa farm and non-farm households were recruited to participate in a study investigating take-home pesticide exposure. On two occasions approximately 1 month apart, urine samples from each participant and dust samples from various rooms were collected from each household and were analyzed for atrazine, metolachlor, gly...

2003
Thomas G. Johnson William J. Brown Kevin O'Grady

This paper presents a model of the farm management process. The model suggests that certain socioeconomic characteristics of farm managers will influence their decision-making process. Several characteristics are hypothesized and tested using multivariate techniques (multivariate analysis of variance, range tests, and multiple comparisons). The analysis indicates that the soil zone, value of ma...

Journal: :The ANNALS of the American Academy of Political and Social Science 1913

2014
Marijke Verhegghe Florence Crombé Larissa J Pletinckx Freddy Haesebrouck Patrick Butaye Lieve Herman Marc Heyndrickx Geertrui Rasschaert

During a previous longitudinal study, performed on four farrow-to-finish farms (A to D), samples were taken from twelve sows, their offspring, and the environment on various occasions over six months to study the MRSA presence. During the present study, a selection of the obtained MRSA isolates were typed by multiple-locus variable-number tandem-repeat analysis (MLVA), Pulsed Field Gel Electrop...

2015
Mbuvi P Mutua Lucilla Steinaa Muya M Shadrack Gicheru M Muita

BACKGROUND Activation of peroxisome proliferator activated receptor gamma (PPAR γ) in the alveolar macrophages (AM) by selective synthetic PPAR γ ligands, improves the ability of the cells to resolve inflammation. In birds, respiratory macrophages are known as free avian respiratory macrophages (FARM) and show distinct functional differences from AM. The effects of treating FARM with PPAR γ lig...

Journal: :Journal of animal science 1989
T A Van Diepen B W Kennedy

Record of performance data taken on Yorkshire pigs on-farm in 123 breeder herds and at a central test station were used to estimate genetic correlations between measures of backfat depth and days to 90 kg on boars at the test station and boars and gilts on-farm. The data involved records on 3,513 station-tested boars, 13,760 farm-tested boars and 28,203 farm-tested gilts from 838, 2,098 and 2,3...

1999
Paul Glewwe Bo Honoré Hanan Jacoby Chris Paxson Cecilia Rouse Dean Jolliffe

This article examines the impact of cognitive skills on the income of households in Ghana. It uses scores on mathematics and English tests to measure cognitive skills and estimates the returns to these skills based on farm profit, off-farm income, and total income. The article uses Powell’s censored least absolute deviations and symmetrically trimmed least squares estimators to estimate farm an...

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