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ESTIMATING CARCASS COMPOSITION OF DUCKS

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V.

-

Technology

ESTIMATING CARCASS COMPOSITION OF DUCKS

P. DELPECH Miroslava MILOVANOVIC Chaire de

Zootechnie,

7. N.

A., Paris-Grignon

78850 Thiverval

* Chaire de Zootechnie Faculté

d’Agronomie

Novi Sad

(Yougoslavie)

Carcass

composition

of ducks has been studied

according

to the method of RICARDet Rou-

VIER

( 19 6 7 ),

on

3 8

drawn carcasses

(birds

were bled,

plucked

and eviscerated

by evagination

of

cloaca)

of male and female

Muscovy,

Pekin and different breeds of crossbred ducks and Mallard X Commun crossbred ducks.

Proportion

of breast is

highest

for

Muscovy

ducks. But

relationships

between total

weight

of carcass and

weight

of

breast,

between total

weight

of carcass and

weights

of the different

tissues in the

leg,

are rectilinear.

Size of breast may be

predicted

from width of kell

(r

= +

0 .86). Weight

of inner fat is

closely

and

linearly

related to circumference of Parson’s nose

(r

= -+-

0 . 7 8).

RELATIONSHIP BETWEEN THE CONDITIONS OF PRODUCTION AND THE

QUALITY

OF PRESENTATION OF THE BROILER

G. de BARBUAT Institut

technique

de

l’Aviculture, Département

Zootechnie et

Technologie,

28,

Rue du Rocher, 75008 Paris

A

study

was made to determine the main factors of alteration in the

presentation

of broiler

carcasses in order to find the cause

chargeable

either to conditions of

production (poultry house,

stock, diseases, feed)

or to the methods of

capture

and

shipping,

or the conditions

during processing.

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