1,721,077 research outputs found
Il comportamento alimentare degli ovini. Nota 1: Il ruolo del sistema nervoso centrale nella regolazione dell'assunzione alimentare
No full textIl comportamento alimentare degli ovini. Nota 2: Il ruolo della replezione rumino-reticolare
No full textSostenibilità delle produzioni biologiche zootecniche con alimenti OGM free in Umbria: aspetti produttivi, sanitari ed economici
No full textCritical evaluation of essential oils as rumen modifiers in ruminant nutrition: A review
No full textRuminant livestock systems contribute significantly to emission of methane, a potent greenhouse gas as they waste a portion of the ingested energy (2–15%) as methane and a large proportion (75–95%) of the ingested nitrogen as ammonia. Recently, numerous researches have been conducted to evaluate plant secondary metabolites, including essential oils (EO), as natural feed additives in ruminant nutrition and to exploit their potential to improve rumen fermentation efficiency. Essential oils appeared to be very promising compounds as they selectively reduced methane production and protein breakdown in both in vitro and in vivo studies. However, in some studies, the use of EO as feed additives was accompanied with decreased feed degradability and lowered volatile fatty acid. These adverse effects could be attributed to their broad and often non-specific antimicrobial activities within the rumen. Future research should be directed to identification of the active and useful EO compounds, optimization of EO doses, and use of a whole-farm approach with a focus on animal welfare, performance and economic benefits
Selezione alimentare in cervi (Cervus elaphus L.) e caprioli (Capreolus capreolus L.) in ambiente appenninico
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Evaluación del consumo voluntario y de la composición botanica de la dieta seleccionada por alpacas pastoreando en ambiente Mediterraneo
No full text
Post mortem proteolysis and tenderization of beef muscle through infusion of calcium chloride
No full textA study involving 48 beef carcasses was conducted in order to evaluate the effects
of 0.3 M calcium chloride (CaCl2) injection on final tenderness in muscle Longissimus thoracis et lumborum.
Injection of beef carcasses with CaCl2 accelerated post mortem tenderization process.
Ca2+-dependent proteases (m-calpain and m-calpain) and their inhibitor (calpastatin) activities were
all significantly (P < 0.01) decreased in CaCl2 injected animals (n = 24) compared with control animals
(n = 24). Tenderness, assessed by measuring shear force, was significantly improved (P < 0.05)
by CaCl2 injection both at two and eight days post mortem
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