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1

Reducing protein and energy rates in diet while maintaining broiler zootechnical performances: Case study of Nor-Spice AB® supplemented dietAmine BENARBIA, DVM, PhD

15/12/08Présentation Nor-Feed Sud 2

2mois année

Titre 2

Introduction

The use of antibiotics as growth promoter have several sides effects:

Chemical residues in the food chain

Development of resistant strain of pathogenic bacteria

Gut Health is important for the expression of the zootechnical performance of broilers.

The intestinal flora plays a key role in maintaining gut health.(Chahine and Bahna, 2010)

Beneficial bacteria

Pathogenic bacteria

15/12/08Présentation Nor-Feed Sud 3

3mois année

Titre 3

Nor-Spice AB® : a natural product

Limonene

essential oils of citrus

Citroflavonoïdes

organic acids

POSPoly-OligoSaccharides

Control the development of pathogenic bacteria

Prebiotic effect

A complex composition for a complementary action.

15/12/08Présentation Nor-Feed Sud 4

4mois année

Titre 4

Experimental design

Group 1Optimal feed

D0 D18 D36 D42

Feed intake weight

Group 2 Optimal feed

+ NSAB 250 ppm

Group 3Low cost feed

Group 4 Low cost feed

+NSAB 250 ppm

Mortality

Trials has been conducted in the BARC station.

Low cost feed : -7% energy, 5% Digestible AA

15/12/08Présentation Nor-Feed Sud 5

5mois année

Titre 5

Results: Final live weight

Supplementation with the NOR-Spice AB® increases the final live weight.

3000

3200

3400

3600

Live

wei

ght (

g)

*

15/12/08Présentation Nor-Feed Sud 6

6mois année

Titre 6

Results: feed intake

Feed supplementation with the NOR-Spice AB® tends to increase feed intake.

low c

ost fe

ed

low c

ost fe

dd ns

optimal

feed

optimal

feed

ns

4000

5000

6000

Fee

d in

take

(g)

*

15/12/08Présentation Nor-Feed Sud 7

7mois année

Titre 7

Results: Feed Conversion Rate (FCR)

Feed supplementation with NorSpice AB® improves the FCR.

low c

ost fe

ed

low c

ost fe

dd ns

optimal

feed

optimal

feed

ns

1.3

1.4

1.5

1.6

1.7

FC

R

*

15/12/08Présentation Nor-Feed Sud 8

8mois année

Titre 8

Results: livability

Feed supplementation with NorSpice AB® improve livability

optimal

feed

optimal

feed

ns

low c

ost fe

ed

low c

ost fe

dd ns

80

90

100

110

livab

ility

(%

)

*

15/12/08Présentation Nor-Feed Sud 9

9mois année

Titre 9

Discussion

• Increase in feed intake.• Increase in final body masse.• Improvement of feed conversion rate.• Decrease in mortality.

The effect of NSAB® Supplementation was more pronounce in case of use of economic feed.

15/12/08Présentation Nor-Feed Sud 10

10mois année

Titre 10

Discussion: Effects on intestinal microbiota

• Pathogenic Flora

• E. coli • Campylobacter • Brachyspira • Salmonella

• Bacteroïde • Pasteurella • Prevotella

NSAB®

Ctrl

0 5 10 15 20 250

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Lactobacillus acidophilus growth

Negative Control

Positive Control (inulin)

NS AB

Lemon EO

Limonene

Citric acid

Time (hour)

Abs

orba

nce

Beneficial lactic flora

15/12/08Présentation Nor-Feed Sud 11

11mois année

Titre 11

Discussion: healthy gut= healthy bird= more efficient use of elements

Stabilization of the Microbiome=

Reduction of microbial toxins(Windisch et al., 2008; Perič et al., 2010; Steiner, 2006)

Improving gut healthIncreasing digestibility

Mitsch et al., 2004; Kroismayr et al., 2008)

Reduction of the inflammatory process

Steiner, 2006; Kroismayr et al., 2008

NORSPICE AB®

Helathy birds More efficient

15/12/08Présentation Nor-Feed Sud 12

12mois année

Titre 12

Advantages

• Complex composition for a complementary action:

• No risk of developing resistant strains.

• An alternative for the use of AB as growth promotors.

• Natural product:• No withdrawal period.• No residues.

• Improve health and animal welfare=> Improve productivity.

15/12/08Présentation Nor-Feed Sud 13

13mois année

Titre 13

Summary

• The action of supplementation of NSAB® was more marked in the case of a “low cost” diet.

• Economic feed= charge less.• Equivalent performance with a 11.47% cheaper feed.• Efficient at low dose: 250 ppm (250 g/T feed).

ROI = 1:3 minimum