Oh Han Jin, Yun Won, Lee Ji Hwan, An Ji Seon, Kim Tae Heon, Cho Eun Ah, Park Beom Jun, Kim Ki Hyun, Lee Sung Dae, Cho Jin Ho
Division of Food and Animal Science, Chungbuk National University, Cheongju 28644, Korea.
Animal Welfare Research Team, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Korea.
J Anim Sci Technol. 2020 Mar;62(2):180-186. doi: 10.5187/jast.2020.62.2.180. Epub 2020 Mar 31.
The objective of this study was to determine the effect of replacing corn with soy hulls on nutrient digestibility of growing pigs. Three experimental diets were tested using a 3 × 3 Latin square design using three barrows per group (Landrace × Yorkshire × Duroc, average initial body weight of 36.9 ± 4.0 kg) in individual metabolic cages. The dietary treatments were the control (CON) basal diet (corn-soybean meal based diet), whereas in the test diets, soy hulls were included at 5% (H1), 10% (H2), gradually replacing corn. The daily feed allowance was adjusted to 2.7 times the maintenance requirement for digestible energy (DE) (2.7 × 110 kcal of DE/kg BW). Intake of crude fiber (CF) was different among treatments ( < 0.05). Pigs fed with H2 diet excreted higher concentrations of dry matter (DM), and CF than pigs fed with H1 diet and basal diet ( < 0.05). Pigs fed with H1 and H2 diets excreted higher concentrations of crude protein (CP) than pigs fed with CON diet ( < 0.05). The apparent total tract digestibility (ATTD) of CF from H1 and H2 diets were higher than CON diet ( < 0.05). Pigs fed with H2 diets were significantly lower ( < 0.05) the ATTD of CP than the pigs fed with CON and H1 diets. The current data suggest that 10% inclusion soy hulls can slightly decrease CP digestibility. However, soy hulls considerably increased CF digestibility.It is concluded that 5% soy hulls may be a usable alternative to corn in growing pig diets.
本研究的目的是确定用大豆皮替代玉米对生长猪营养物质消化率的影响。采用3×3拉丁方设计，在个体代谢笼中对三组（每组三头公猪，长白×约克夏×杜洛克杂交猪，平均初始体重36.9±4.0千克）进行三种试验日粮的测试。日粮处理为对照（CON）基础日粮（玉米-豆粕型日粮），而在试验日粮中，大豆皮分别以5%（H1）、10%（H2）的比例逐渐替代玉米。每日采食量调整为可消化能量（DE）维持需要量的2.7倍（2.7×110千卡DE/千克体重）。各处理间粗纤维素（CF）摄入量不同（P<0.05）。饲喂H2日粮的猪排泄的干物质（DM）和CF浓度高于饲喂H1日粮和基础日粮的猪（P<0.05）。饲喂H1和H2日粮的猪排泄的粗蛋白（CP）浓度高于饲喂CON日粮的猪（P<0.05）。H1和H2日粮中CF的表观全肠道消化率（ATTD）高于CON日粮（P<0.05）。饲喂H2日粮的猪CP的ATTD显著低于饲喂CON和H1日粮的猪（P<0.05）。目前的数据表明，添加10%的大豆皮会略微降低CP的消化率。然而，大豆皮显著提高了CF的消化率。得出的结论是，5%的大豆皮可能是生长猪日粮中玉米的可用替代品。
