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(1)

number of hens

exceeds (on

2.75 m of

feeders)

and to an inter-individual attraction for values below 7. It was

possible

to

compute

feeder

ethological

standards which are 13.5 cm of double- sided feeder

by hen,

i. e. about twice the standards used.

III.

-

Nutrition - feeding

MANIOC AND SWEET

POTATOES,

CARDOHYDRATE CONTAINING

FEEDSTUFFS

FOR BROILERS

M. PALISSE

J. BARATOU

Société

Sanders, 17, Quai

de

l’Industrie,

91260 Juvisy

sur

Orge

It is

quite possible

to introduce manioc and sweet

potatoes

into Broiler feeds on condition that

they

are

supplied

in the form of

pellets.

The entertained characteristics seem to be correct for these two raw materials.

Only

the ener-

gy value is

perhaps

a little underestimated.

FEEDING VALUE OF STORED

AND ORGANIC

ACID

TREATED MAIZE FOR

BROILERS

J.

CASTAING

J. MOAL

Association

générale

des Producteurs de maïs, 64000 Pau

The

following organic acids,

lactic and

formic,

have been used either alone or in association with

propionic

acid in order to preserve

high

moisture maize. The effect of

propionic

acid alone

was also studied. The maize treated with lactic acid had to be

rejected

because of deterioration

during storage.

After introduction of such treated maize into broiler

diets,

the

growth

rate and food consump- tion

slightly

decreased

(6 to

p. 100

and

5 p. 100

respectively). Therefore,

it seems that the treat- ments

by organic

acids decrease the

palatability

of stored maize.

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