ASSELDOR, Goose and Duck Breeding Station, La Tour de Glane, 24420 Coulaures, France.
GenPhySE, University of Toulouse, INRA, INPT, INP-ENVT, Castanet Tolosan, France.
Poult Sci. 2017 Sep 1;96(11):3928-3937. doi: 10.3382/ps/pex210.
The aim of this work was to study the effects of incorporating sugar beet pulp (SBP) into the diet of geese in two feeding systems (complete pelleted feed or loose-mix feeding system) on crop development and performance. A total of 480 1-d-old male geese were divided into three groups whose diet differed from d 56 to 90: a complete pelleted diet containing 50% corn (control diet: AMEn 11.5 MJ/kg; CP 161 g/kg), and no SBP; a complete pelleted diet containing 50% corn and 10% SBP (SBPcp diet: AMEn: 11.5 MJ/kg; CP: 161 g/kg); and a mix in the same feeder (SBPlm diet) of 500 g/kg of protein-rich pellets containing 20% SBP (SBPprp: AMEn: 9.0 MJ/kg; CP: 250 g/kg) and 500 g/kg of whole corn (WC: AMEn: 14.0 MJ/kg; CP: 72 g/kg). Body traits, including crop volume, were measured at d 91. From d 91 to 106, 88 birds/group were overfed with a mixture containing mainly corn and water before slaughter to measure fatty liver performance. Feed intake from d 56 to 90 was higher (+10%; P = 0.004) in the SBPcp group than the other two, but at d 90, the body weight (BW) of the birds was higher (+7%; P = 0.002) in the SBPlm group than the other two. At d 91, the volume of the crop was greater in the SBPcp group (80.4 mL/kg of BW, P < 0.001) than in the control group (60.3 mL/kg of BW), the SBPlm group being intermediate (64.1 mL/kg of BW). Feed intake (13,321 g), weight gain (2,733 g), and feed-to-gain ratio (4.9) during the overfeeding period, as well as fatty liver weight (963 g) and commercial grading, were similar (P > 0.05) between the three groups. In conclusion, the use of sugar beet pulp in the diet of finishing geese helps the adaptation of the digestive tract to the overfeeding period, even in a loose-mix feeding system based on whole corn.
本研究旨在研究在两种饲养系统（全颗粒饲料或自由混合饲料系统）中添加糖蜜糟（SBP）对鹅育肥性能的影响。共选取 480 只 1 日龄雄性鹅，随机分为 3 组，从 56 日龄到 90 日龄，各组的饲料不同：含有 50%玉米的全颗粒饲料（对照组：代谢能 11.5 MJ/kg；粗蛋白 161g/kg），不添加 SBP；含有 50%玉米和 10%SBP 的全颗粒饲料（SBPcp 组：代谢能 11.5 MJ/kg；粗蛋白 161g/kg）；以及在同一个料槽中添加 500g/kg 高蛋白 SBP 颗粒料（SBPprp：代谢能 9.0 MJ/kg；粗蛋白 250g/kg）和 500g/kg 整粒玉米（WC：代谢能 14.0 MJ/kg；粗蛋白 72g/kg）的自由混合饲料（SBPlm 组）。91 日龄时测量鹅的体尺，包括嗉囊体积。从 91 日龄到 106 日龄，每组 88 只鹅在屠宰前通过过量投喂主要由玉米和水组成的混合物来测定脂肪肝性能。从 56 日龄到 90 日龄，SBPcp 组的饲料采食量更高（增加 10%；P = 0.004），但在 90 日龄时，SBPlm 组的体重（BW）高于其他两组（增加 7%；P = 0.002）。91 日龄时，SBPcp 组的嗉囊体积大于对照组（80.4mL/kg BW，P<0.001），SBPlm 组居中（64.1mL/kg BW）。在过量投喂期间，饲料采食量（13321g）、增重（2733g）和饲料增重比（4.9）以及脂肪肝重量（963g）和商业分级在三组间无显著差异（P>0.05）。综上所述，在育肥鹅的日粮中添加糖蜜糟有助于鹅的消化道适应过量投喂期，即使在以整粒玉米为基础的自由混合饲料系统中也是如此。
