College of Animal Life Sciences, Kangwon National University, Chuncheon, 200-701, Republic of Korea.
J Anim Sci. 2010 Jan;88(1):181-91. doi: 10.2527/jas.2008-1741. Epub 2009 Sep 11.
Four experiments were conducted to determine the effects of dietary supplementation of corn distillers dried grain with solubles (DDGS) diets with mannanase on performance, apparent total tract digestibility (ATTD) of energy and nutrients, blood metabolites, and carcass characteristics of grower-finisher pigs. In Exp. 1, 96 grower pigs (initial BW, 57.6 kg), 6 pigs per pen and 4 pens per treatment, were fed corn-soybean meal-based diets containing 10% DDGS and 0, 200, 400, or 600 units (U) of mannanase/kg. The ADG and blood glucose increased (linear, P < 0.05) with increasing concentrations of dietary mannanase. Pigs fed diets containing increasing levels of mannanase had improved ATTD of DM and CP (quadratic, P < 0.05). In Exp. 2, 64 finisher pigs (initial BW, 92.7 kg) were allotted to 4 treatment groups with 4 pigs per pen and 4 pens per treatment. Pigs were fed corn-soybean meal-based diets containing 15% DDGS and 0, 200, 400, or 600 U of mannanase/kg. Linear increases (P < 0.05) in ADG, blood glucose, and ATTD of DM, GE, and CP were observed with increasing levels of dietary mannanase supplementation. In Exp. 3, 208 grower pigs (initial BW, 60.5 kg) were allotted to 4 treatment groups with 13 pigs per pen and 4 pens per treatment. Pigs were fed diets containing 0 or 10% DDGS and 0 or 400 U of mannanase/kg in a 2 x 2 factorial arrangement. An increase (P < 0.05) in ADG and blood glucose for pigs fed diets containing mannanase was observed. The ATTD of DM and CP (P < 0.05) was decreased with the inclusion of DDGS, whereas pigs fed the mannanase-supplemented diets had an increased (P < 0.05) ATTD of CP. In Exp. 4, 208 finisher pigs (initial BW, 86.5 kg), with 13 pigs per pen and 4 pens per treatment, were fed diets containing 0 or 15% DDGS and 0 or 400 U of mannanase/kg in a 2 x 2 factorial arrangement. The ADG and blood glucose increased (P < 0.05) when mannanase was included in the diets. The ATTD of DM (P < 0.05), GE (P < 0.10), and CP (P < 0.05) increased by the supplementation with mannanase in the diets of finisher pigs. The carcass characteristics and meat quality were not affected by the DDGS or mannanase inclusion. These results indicated that including 10 and 15% DDGS in conventional swine grower and finisher diets had no detrimental effects on growth performance or carcass characteristics. In addition, supplementation with 400 U of mannanase/kg to diets containing 10 and 15% DDGS fed to grower and finisher pigs may improve growth performance and the ATTD of CP.
进行了四项实验，以确定日粮中添加含有甘露聚糖酶的玉米酒糟及其可溶性物（DDGS）对生长育肥猪的性能、能量和养分的表观总肠道消化率（ATTD）、血液代谢物和胴体特性的影响。在实验 1 中，96 头生长猪（初始体重 57.6kg），每栏 6 头猪，每处理 4 栏，饲喂含有 10% DDGS 和 0、200、400 或 600 个单位（U）甘露聚糖酶/千克的玉米-豆粕基础日粮。随着日粮中甘露聚糖酶浓度的增加，ADG 和血糖增加（线性，P<0.05）。饲喂含有不同水平甘露聚糖酶的日粮的猪的 DM 和 CP 的 ATTD 提高（二次，P<0.05）。在实验 2 中，64 头肥育猪（初始体重 92.7kg）分为 4 个处理组，每栏 4 头猪，每处理 4 栏。猪饲喂含有 15% DDGS 和 0、200、400 或 600U 甘露聚糖酶/千克的玉米-豆粕基础日粮。随着日粮中甘露聚糖酶添加水平的增加，ADG、血糖和 DM、GE 和 CP 的 ATTD 呈线性增加（P<0.05）。在实验 3 中，208 头生长猪（初始体重 60.5kg）分为 4 个处理组，每栏 13 头猪，每处理 4 栏。猪饲喂含有 0 或 10% DDGS 和 0 或 400U 甘露聚糖酶/千克的日粮，采用 2x2 因子设计。添加甘露聚糖酶的猪的 ADG 和血糖增加（P<0.05）。DDGS 的添加降低了 DM 和 CP 的 ATTD（P<0.05），而饲喂添加甘露聚糖酶的日粮的猪的 CP 的 ATTD 增加（P<0.05）。在实验 4 中，208 头肥育猪（初始体重 86.5kg），每栏 13 头猪，每处理 4 栏，饲喂含有 0 或 15% DDGS 和 0 或 400U 甘露聚糖酶/千克的日粮，采用 2x2 因子设计。添加甘露聚糖酶时，ADG 和血糖增加（P<0.05）。甘露聚糖酶在肥育猪日粮中的添加提高了 DM（P<0.05）、GE（P<0.10）和 CP（P<0.05）的 ATTD。DDGS 或甘露聚糖酶的添加对胴体特性和肉质没有影响。这些结果表明，在常规生长育肥猪日粮中添加 10%和 15%的 DDGS 对生长性能或胴体特性没有不利影响。此外，在饲喂生长育肥猪的含有 10%和 15% DDGS 的日粮中添加 400U/kg 甘露聚糖酶可能会提高生长性能和 CP 的 ATTD。
