Abstract:
Limited data exist about the production of extruded
linseed as a feed ingredient in farm
animal nutrition. The objective of this study was t
o produce and evaluate extruded linseed
mixed with alfalfa hay, pistachio by-products, and
sugar beet pulp or corn grain in
different proportions of linseed: alfalfa hay: pist
achio by-products at ratios of 70:15:15,
70:20:10, 70:10:20, and 80:10:10 for quality parame
ters and
in situ
rumen Dry Matter
(DM) degradability. Using a completely randomized d
esign, the treatment containing
alfalfa hay had higher Extrusion Effectiveness (EE)
, Water Holding Capacity (WHC),
and Angle of Repose (AR), but lower Oil Loss (OL) a
nd Bulk Density (BD) than other
treatments (P< 0.05). There were no differences amo
ng extruded linseed products with
different ratios of linseed: alfalfa: pistachio by-
products for EE, WHC, and AR (P> 0.05).
The treatment with an 80:10:10 ratio had the highes
t OL among all treatments and the
treatment with a 70:15:15 ratio had lower BD than t
he others (P< 0.05). The DM
degradability parameters of extruded products was a
ffected by the absorbents and the
treatment containing alfalfa hay had higher potenti
al DM degradability than other
treatments (P< 0.05). In conclusion, extruded treat
ment with alfalfa hay had the highest
EE, oil retention capacity and potential rumen DM d
egradability compared to other
treatments. In addition, extruded linseed product w
ith an 80:10:10 ratio of linseed: alfalfa
hay: pistachio by-products had higher OL than the o
ther ratios.
Keywords:
Alfalfa,
Fat absorption capacity, Pistachio by-products.
