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Fermentation of liquid feeds
SRC045
Nutreco R&D – Fermentationexperts
29 April 2011
Ronald Scholten
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II. Trials weaned piglets
HendrixUTD BV
Ashorst BV (=farm Van Asten; 1800 sows + 12.000 gr-f)
WEDA Holland BV
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Fermentmix
Lactic Acid(g/kg)
Acetic Acid (g/kg)
Ethanol(g/kg)
30.11.2010 14 1.2 5.1
08.12.2010 14 0.8 4.3
05.01.2011 19 0.8 2.9
10.01.2011 14 0.8 3.3
12.01.2011 13 0.9 6.8
15.02.2011 14 1.1 6.7
LAB: 107 to 109 cfu/ml
Yeast: 103 to 105 cfu/ml
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Trial 1: 16 Dec ’10
• Fermentation 32 - 34 ˚C (warm water)
• Batch fermentation
• Daily cleaning hot water (60-70 ˚C)
• Weekly sodium hydroxide + soap cleaning; hot water
• Ferment mix: barley (62%), wheat (35,7%), molasses (2%), palm oil (0,3%)
• Pellets, crumbled feed
• Temperature of final diets are equal (computer controlled)!
Trial 1: weaned piglets
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• Control: 65% non-fermented ferment mix + 35% conc.
• Ferment: 65% fermented ferment mix + 35% conc.
• Day 1 – 4: 90% prestarter + 10% ferment mix
• Day 5 – 20: 65% ferment mix + 35% conc.1
• Day 21 – 35: 65% ferment mix + 35% conc.2
• 856 piglets: 16 replicates per treatment
Trial 1: weaned piglets
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Trial 1: weaned piglets; day 1-35
Trial 1 Control Ferment P
Initial weight (kg) 6.9 7.0 .78
Final weight (kg) 19.5 20.0 .49
ADG (g/d) 369 380 .33
FCR (kg/kg) 1.57a 1.54b .10
Feed intake (kg/day) 0.66 0.66 .74
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Trial 2: 10 February – 16 March 2011
• Fermentation 32 - 34 ˚C (warm water)
• Batch fermentation
• Daily cleaning hot water (60-70 ˚C)
• Weekly sodium hydroxide + soap cleaning; hot water
• Ferment mix: barley (62%), wheat (35,7%), molasses (2%), palmoil (0,3%)
• Pelleted, crumbled feed
• Temperature of final diets are equal (computer controlled)!
Trial 2: weaned piglets
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• Control: 65% non-fermented ferment mix + 35% conc.
• Ferment: 65% fermented ferment mix + 35% conc.
• Day 1 - 20: 65% ferment mix + 35% conc.1
• Day 21 – 35: 65% ferment mix + 35% conc.2
• 1.039 piglets: 20 replicates per treatment
Trial 2: weaned piglets
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Trial 2: Weaned piglets; day 1-35
Trial 2 Control Ferment P
Initial weight (kg) 6.8 6.9 .59
Final weight (kg) 18.5a 19.3b .03
ADG (g/d) 343a 363b .03
FCR (kg/kg) 1.66a 1.59b .02
Feed intake (kg/day) 0.64 0.65 .45
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• Concentrates (35% of DM) are identical in both treatments
• Concentrates includes “insurances” (i.e.. organic acid)
Difference trial 1 versus trial 2:
• First 5 days after weaning both treatments got very luxury feed
• First 5 days both groups (except 10% ferment mix was fermented versus non-fermented) was identical.
Remarks: