An experiment was conducted using a total of 540 one-day-old Yangzhou geese to study
the effect of rearing system on growth performance, carcass traits, and meat quality
of male and female Yangzhou geese. The birds were divided into homogeneous groups
according to initial BW and sex. The male and female geese were raised in separate
pens under 5 different treatments, with 3 replicate pens of 18 male or 18 female geese
per pen for each treatment. This experiment included 2 stages, with geese at 1 to
28 d of age (the first stage) and 29 to 70 d of age (the second stage). The 5 different
treatments were 1) system A (geese raised on a wire floor), 2) system B (geese raised
on the floor), 3) system C (geese raised on the floor and transferred to to a wire
floor), 4) system D (geese raised on a wire floor and transferred to the floor), and
5) system E (geese raised on the floor and transferred to a free range). Results showed
that feed conversion rate, BW, and BW gain were significantly affected by rearing
system and sex (P < 0.05). For carcass yield, results suggested that eviscerated carcass
yield and heart yield were affected by rearing system (P < 0.05) but not by sex (P
> 0.05). Differences between sexes, but not rearing systems, were observed for only
breast yield, thigh yield, and liver yield (P < 0.05). Rearing system and sex had
a remarkable effect (P < 0.05) on subcutaneous fat thickness, abdominal fat yield,
and gizzard yield. The nutrient composition (water, protein, and fat), water-holding
capacity, shear force, and pH of the pectoralis major muscle were not affected (P
> 0.05) by the rearing system, and only water, protein, and pH of the meat were affected
by sex (P < 0.05). This study indicates that rearing system A, in which Yangzhou geese
were raised on a wire floor, improved growth performance but had little effect on
meat quality, implying that the use of rearing system A, using a wire floor, might
be feasible and effective for Yangzhou geese.