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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: