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COMPARISON OF MEAT PERFORMANCE OF PEKIN DUCKS FROM TWO CONSERVATIVE FLOCKS
Darius KOKOSZYŃSKI
Zenon BERNACKI
Sažetak
Pekin ducks from P44 and P55 conservative flocks were compared for body weight
and dimensions, feed intake, dressing percentage and carcass composition. P44
ducks, compared to P55 birds, had greater body weight (3124 vs. 3051 g), longer
trunk with neck (47.8 vs. 47.5 cm), trunk (25.8 vs. 25.3 cm), keel (13.3 vs. 12.8 cm)
and shanks (6.3 vs. 6.2 cm) as well as significantly greater chest circumference (34.6
vs. 33.7 cm). P55 ducks were characterized by lower feed intake per bird (7.48 kg)
and per kg body weight (2.45 kg) and greater European Production Index (259
points) compared to P44 ducks (7.73 kg, 2.53 kg, 251 points). The carcasses of P44
ducks contained more breast muscles (12.6%) and skin with subcutaneous fat
(31.4%) but less leg muscles (13.2%) compared to P55 birds (12.3, 29.7 and 13.9%
of carcass with neck, respectively).
Ključne riječi
duck; conservative flock; body dimensions; feed intake; carcass composition
Hrčak ID:
71103
URI
Datum izdavanja:
13.7.2011.
Posjeta: 1.750 *