Effect Of Extrusion Of Swine Grower Feed On Nutrient Digestibility And Production Performance In Large White Yorkshire Pigs
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Date
2021-07
Journal Title
Journal ISSN
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Publisher
TANUVAS, Chennai
Abstract
A study was conducted to determine the effect of extrusion of swine
grower feed on the nutrient digestibility and production performance in twentyfour
conventionally weaned LWY piglets 30 days of age and 7.60 kg average body
weight. They were grouped in to two groups with twelve piglets in each group and fed
individually with mash feed (MF) and extruded feed (EF) ad libitum.The experiment
was conducted for 90 days. The feed was formulated with maize (62.5%), soybean
meal (10%), fish meal (6%), wheat bran (8%), deoiled rice bran (11%), mineral
mixture (2%) and salt (1%). The extrudate was air-dried overnight and analysed for
its chemical composition.The results indicated that the moisture (MF- 9.54% and
EF - 5.17%), total ash -TA (MF- 7.77% and EF - 6.35%), crude protein-CP (MF-
18.14% and EF - 17.36%), ether extract -EE (MF- 2.04% and EF - 1.74%), crude
fibre– CF (MF- 6.13% and EF - 5.04%), nitrogen free extract – NFE (MF- 65.05%
and EF - 69.51%), calcium (MF- 0.07% and EF - 0.06%), phosphorus (MF- 0.44%
and EF - 0.45%) and gross energy– GE (MF- 3870.55 kcal/kg and EF - 4105.75
kcal/kg). The extrusion process decreased moisture, TA, EE and CF significantly
(P<0.05) and also increased NFE and GE significantly (P< 0.01) in the extruded
feed.The digestibility of dry matter (MF- 84.19% and EF -87.28%), CP (MF-
91.29% and EF -93.21%), EE (MF- 69.21% and EF - 1.74%), CF (MF- 81.44%
and EF -87.54%) and energy (MF- 77.94% and EF -83.36%) were recorded.The
digestible nutrients of EE and CF were increased significantly (P<0.05) and energy
of (MF – 77.94%) extruded feed was increased significantly (P<0.01) by 7 per cent
than the mash feed (EF- 83.36%).The average feed intake was significantly (P<0.05)
different from MF (2417.43g/day) to EF (2106.97g/day) group.
Description
TNV_IJVASR_50(4)_July-Aug.2021_29-35
Keywords
Veterinary Science, Animal Nutrition