Using high throughput phenotyping of growth and feed intake to improve adaptation of chickens to sustainable diets

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Using high throughput phenotyping of growth and feed intake to improve adaptation of chickens to sustainable

diets

Quentin Berger, Elodie Guettier, Séverine Urvoix, Elisabeth Duval, Sandrine Mignon-Grasteau

To cite this version:

Quentin Berger, Elodie Guettier, Séverine Urvoix, Elisabeth Duval, Sandrine Mignon-Grasteau. Using high throughput phenotyping of growth and feed intake to improve adaptation of chickens to sustain- able diets. XIth EUROPEAN SYMPOSIUM ON POULTRY GENETICS, Oct 2019, Prague, Czech Republic. 2019. �hal-02737886�

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Fee d C on ver sion r ati o ( g/ g)

Age (days)

Cumulative Feed conversion Ratio (LR chickens)

Using high throughput phenotyping of body weight and

feed intake to improve adaptation of chickens to sustainable diets

BERGER Quentin, GUETTIER Elodie, URVOIX Séverine, LE BIHAN-DUVAL Elisabeth, MIGNON-GRASTEAU Sandrine

Diversification of feedstuffs used in poultry diets implies that animals have to be able to adapt to alternative diets, in order to maintain their feed efficiency and growth when fed with various diets. We thus compared slow and rapid-

growing broilers fed with a corn-soybean diet or with an alternative diet including more sustainable feedstuffs. Adaptation

to the diets was assessed through a continuous and individual phenotyping of body weight and feed intake on floor-reared animals, thanks to an electronic feed station.

Context

Materials and methods

80 Slow-growing Label Rouge chickens (LR)

80 Fast-growing chickens (ST)

Alternative (A-ST) Wheat-sunflower-

fava bean diet Classical (C-ST) Corn-soybean diet

Alternative (A-LR) Wheat-sunflower-

fava bean diet Classical (C-LR) Corn-soybean diet

Feed efficiency

Carcass composition & meat quality

Breast%, Abdominal fat % Breast meat colour (L, a*, b*)

Breast meat pHu

Deep large scale phenotyping

Growth Experimental design

Feed station:

Continuous measurement of

individual feed intake and body weight

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40

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Dai ly F ee d In tak e (g /d)

Age (days)

Daily feed intake

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W eigh t ( g)

Age (days)

Growth curves

Results

A-LR<C-LR A-LR >C-LR

A-ST>C-ST A-LR >C-LR

A-ST<C-ST

Age of diet changes (ST) Starter  Grower  Finisher

Significant effect of diet (ST) C-ST : Classical diet, standard chicken

A-ST : Alternative diet, standard chicken C-LR : Classical diet, label rouge chicken A-LR : Alternative diet, label rouge chicken

Age of diet changes (LR) Starter  Grower  Finisher

Significant effect of diet (LR)

* *

* *

A-LR >C-LR

CONCLUSION

Label Rouge chickens have a similar FI, a slightly better growth until 58 days and a better efficiency during the first 40 days with the alternative diet. Except for thigh percentage, higher

with the alternative diet, no difference was observed on carcass composition nor meat quality between the two diets.

Standard chickens have the same FI, growth and FCR whatever the diet. Animals fed with the classical diet have more

abdominal fat and a more acidic and yellower meat.

Animals adapt well to the alternative diet, having periods of enhanced or identical performances than

with a classical corn-soybean diet.

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Age (days)

Fee d c on ver sion ra ti o (d/d)

Cumulative Feed conversion Ratio (STD chickens)

For each strain and at each stage of development, diets are isoproteic and isoenergetic

1 Feed Station

=

80 animals