Intensification and specialisation of agriculture in developed countries enabled productivity to be improved but had detrimental impacts on the environment and threatened the economic viability of a huge number of farms. The combination of livestock and crops, which was very common in the past, is assumed to be a viable alternative to specialised livestock or cropping systems. Mixed crop-livest...

The aim of this study was to analyse whether automatic milking has an effect on reproduction in dairy cows. Probably the most important consequence of automatic milking is an increased milking frequency. More frequent milking means more production and thereby an extra threat for the energy balance during the first months of lactation. A deep negative energy balance (NEB) is often followed by ne...

Aquaculture of the geoduck, Panopea generosaGould, 1850, has increased dramatically during the past decade in southern Puget Sound, WA, and the effects of these intertidal aquaculture geoduck beds on local fauna is mostly unknown. This study examined the species composition, relative abundances, and biodiversity indices of mobile benthic fauna in geoduck farm areas of southern Puget Sound. Surv...

Salmonid farming in Ireland is mostly organic, which implies limited disease treatment options. This highlights the importance of biosecurity for preventing the introduction and spread of infectious agents. Similarly, the effect of local network properties on infection spread processes has rarely been evaluated. In this paper, we characterized the biosecurity of salmonid farms in Ireland using ...

machine harvesting of legumes in iran is not being done due to unsuitable variety of the plant, lack of farmers' technical knowledge and farms of small scale sizes.currently the plant is harvested by hand and carried to the thresher: yet application of these threshers is not common; they are few in number, and not very suitable for iran. this presentation shows the design and construction ...

This article discusses two strategiesused in field trials to control the spread of porcine reproductive and respiratorysyndrome(PRRS)virus in a breeding herd. In the first experiment, two breeding herds were closed to outside replacements and replacement males and females were raised on the farms. In the second experiment, replacement gilts were held in an off-site holding facility and the nurs...

Dietary enrichments with the arachidonic acid (ARA)-rich microalga, Parietochloris incisa, on the survival of guppy (Poecilia reticulata) fry were examined. Diets were applied via Artemia enrichment to fish from two commercial farms for 34 and 36 days of experimental period (trials 1 and 2, respectively). In trial 1, Artemia nauplii were enriched with dry biomass of whole algal cells at 0 (cont...

Reliable estimation of nutrient concentrations is required to manage animal manure for protecting waters while sustaining crop production. This study was conducted to investigate sample variability and reliable nutrient analysis for several manure types and handling systems. Serial samples were collected from dairy, swine, and broiler poultry operations while manure was being loaded onto hauler...