Swine production has undergone rapid transformation from family owned operation to a large scale industrial enterprise. Since increasing number of pigs are reared on a large scale in confined buildings, some of the swine barn workers may be employed to work eight hours per day. Swine barn workers suffer from higher incidences of impaired air flow and lung inflammation, which is attributed to hi...

I denna artikel vill vi bidra till den teoretiska diskussionen om att ”lyssna på barn” i relation ”barns delaktighet” genom föreslå en fenomenologisk reflektion kring lyssna barnets sociala värld. Genom använda exempel från forskningsintervjuer med barn och unga som beskriver sin levda erfarenhet av delta familjerättsliga processer, är vårt syfte visa hur kan möjliggöra förståelse för vad konst...

BACKGROUND People working in cattle, swine and poultry barns have a higher prevalence of respiratory symptoms and decreased lung function. There is scant evidence regarding the respiratory health of humans working in horse barns, although it is well documented that stabled horses have a high prevalence of airway disease. AIMS To determine whether people spending time in horse barns have a hig...

Little is known of the normal seasonal variation in redox state and biotransformation activities in birds. In long-distance migratory birds, in particular, seasonal changes could be expected to occur because of the demands of migration and reproduction. In this study, we measured several redox parameters in the barn swallow (Hirundo rustica L.) during the annual cycle. We captured the wintering...

McGraw et al. (2004) have recently presented evidence that barn swallow (Hirundo rustica) feathers from the forehead and throat do not contain carotenoids, and melanins are the determinants of their chestnut coloration. This contradicts evidence I presented in a book entitled The colour of flight: carotenoids in bird plumage (Stradi, 1995, 1998), where a tridimensional high-performance liquid c...

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A13STRACT.--Genomic DNA libraries of the Barn Swallow (Hirundo rustica) and the Pied Flycatcher (Ficedula hypoleuca) were screened for the presence of dinucleotide microsatellite repeats. Two thymine-guanine repeats, "(TG),," and two thymine-cytosine repeats, "(TC),," were isolated and sequenced from the two species, respectively. Polymerase-chain-reaction (PCR) analysis of 25 unrelated Barn Sw...

The barn owl is a nocturnal hunter, capable of capturing prey using auditory information alone [1]. The neural basis for this localization behavior is the existence of auditory neurons with spatial receptive fields [2]. We provide a mathematical description of the operations performed on auditory input signals by the barn owl that facilitate the creation of a representation of auditory space. T...

The use of bedded hoop barns in finishing systems for beef cattle has not been widely researched. In this management system, beef cattle are confined to hoop barns throughout finishing, and bedding is used to absorb animal waste, which results in minimal effluent. The objective of this study was to compare the performance and carcass characteristics of finishing beef steers (n = 1,428) managed ...