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Gas production in vitro from either unprocessed, micronised or extruded maize, peas, wheat, naked oats and barley using equine faeces as the source of inocula

  • B M L McLean (a1), J J Hyslop (a1), A C Longland (a2), D Cuddeford (a1) and T Hollands (a3)...

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A wide variety of starch based feeds are available for inclusion in equine diets. These feeds may be subjected to physical processing (micronisation or extrusion) prior to inclusion. This experiment evaluates a range of starch based feedstuffs using an in vitro batch culture technique.

A total of 15 feedstuffs were incubated in vitro with an inocula prepared from freshly voided faeces which was collected from six ponies fed grass hay ad libitum. The feeds were five starch based feedstuffs; i.e: maize (M), peas (P), wheat (W), naked oats (NO) or barley (Ba) in one of three physically processed forms i.e: unprocessed (Unp), micronised (Mic) or extruded (Ext). All feeds were ground through a 1.0mm screen prior to incubation. Cumulative gas production (GP) was measured using the pressure transducer technique of Theodorou et al (1994) throughout a 72 h incubation period.

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France, J., Dhanoa, M.S., Theodorou, M.K., Lister, S.J., Davies, D.R., Isac, D. 1993. A model to interpret gas accumulation profiles associated with in vitro degradation of ruminant feeds. J. Theor. Biol. 163: 99 111
Theodorou, M.K., Williams, B.A., Dhanoa, M.S.,McAllan, A.B., France, J. 1994 A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds. Anim. Feed Sci. & Tech. 48: 185197.

Gas production in vitro from either unprocessed, micronised or extruded maize, peas, wheat, naked oats and barley using equine faeces as the source of inocula

  • B M L McLean (a1), J J Hyslop (a1), A C Longland (a2), D Cuddeford (a1) and T Hollands (a3)...

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