1,721,127 research outputs found
Impatto ambientale da pascolamento suino
No full textOutdoor pig farming has been reappraised in the last two decades in many European
nations: the United Kingdom, the Scandinavian countries and some Mediterraneans states
such as France, Portugal and Spain. In Italy this extensive, free farming system has drawn
some attention for several reasons linked to the use of marginal lands, the safeguard of dying
breeds, the appeal of the organic farming systems, and the care of consumers for high
quality products. Feeding the pig with “natural” feeds improves pork organoleptic and
dietetic properties, but at the same time it might have negative environmental effects due to
a difficult management of natural resources. The pig is the animal who can originate the
greatest environmental problems, particularly in the woodlands. Scientific research in this
field has just started, mainly in Northern Europe (Germany, United Kingdom, Sweden,
Denmark), focusing on the damages of free grazing pig farming. Therefore it would be
interesting to make similar investigations on free rooting pig farming in woodlands and
bush, habitat more and more utilized for outdoor pig farming. The environmental impact
of pig rooting depends on many factors among which: excessive exploitation of herbage
and shrubs, trunk scraping, soil rooting and compacting, particularly along paths. Pigs
select the vegetation, consequently damages vary among different plant species; this is
due also to specific resistance of tree trunks and shrub roots to scraping and rooting,
respectively. Soil damages, particularly in slopes, and an alteration of the natural phytocoenosis,
can lead to a progressive deterioration of the physical (decrease of stability),
chemical (decrease of organic matter) and biochemical (reduction of microbial activity)
characteristics of the soil, with increased risk of soil erosion, hydrogeological instability
and desertification
Digeribilità "in vivo" e degradabilità "in situ" del sorgo integrale disidratato e pellettato
No full textProve di utilizzazione di un prato-pascolo naturale. Nota II: Conservazione e valore nutritivo del foraggio sfalciato
No full text
Prove di utilizzazione di un prato-pascolo naturale. Nota I: Andamento produttivo ed epoca di sfalcio del foraggio
No full text
Indagine sul livello di ingestione di diversi tipi di fieno in rapporto alle modalità della loro somministrazione a vacche da latte
No full text- …
