Department of Animal Science, Agricultural Faculty, Ondokuz Mayis University, Samsun, Turkey.
Department of Animal Science, Agricultural and Natural Science Faculty, Bozok University, Yozgat, Turkey.
Poult Sci. 2018 Jan 1;97(1):47-53. doi: 10.3382/ps/pex265.
A total of 200 guinea fowl was reared in either barn or free-range systems and slaughtered at 14, 16, or 18 wk of age in order to determine the effects of production system on live weight, feed consumption, and some carcass and slaughter traits. Production system had a significant effect on live weight until 14 wk of age. Live weights were similar between free-range and indoor production systems at 16 (1,150 g vs. 1,152 g) and 18 (1,196 g vs. 1,203 g) wk of age. Guinea fowl reared in a free-range system consumed more feed (7,693 g vs. 6,983 g), and guinea fowl reared in a barn had better feed conversion ratio (5.80 vs. 6.43) (P < 0.05). Production system, gender, and slaughter age did not affect the dressing percentage. Guinea fowl reared in a free-range system had significantly less abdominal fat (P < 0.05).
总共饲养了 200 只珍珠鸡，分别采用舍饲或放牧制饲养，于 14、16 或 18 周龄时屠宰，以确定生产系统对活重、饲料消耗以及一些屠体和屠宰特征的影响。生产系统对 14 周龄前的活重有显著影响。16 周龄（1150 克对 1152 克）和 18 周龄（1196 克对 1203 克）时，放牧制和室内生产系统的活重相似。放牧制饲养的珍珠鸡饲料消耗更多（7693 克对 6983 克），舍饲珍珠鸡的饲料转化率更好（5.80 对 6.43）（P < 0.05）。生产系统、性别和屠宰年龄对屠体率没有影响。放牧制饲养的珍珠鸡腹部脂肪显著较少（P < 0.05）。
