Supplementation of Non-Starch Polysaccharide Enzymes Cocktail in a Corn-Miscellaneous Meal Diet Improves Nutrient Digestibility and Reduces Carbon Dioxide Emissions in Finishing Pigs
Supplementation of Non-Starch Polysaccharide Enzymes Cocktail in a Corn-Miscellaneous Meal Diet Improves Nutrient Digestibility and Reduces Carbon Dioxide Emissions in Finishing Pigs
复制标题
在玉米杂粮日粮中补充非淀粉多糖酶混合物可提高肥育猪的营养消化率并减少二氧化碳排放
DOI：
10.3390/ani10020232
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发表时间：
2020-02-01
期刊：
影响因子：
3
通讯作者：
Zhang, Hongfu
中科院分区：
文献类型：
--
作者：
Chen, Yuxia;Shen, Dan;Zhang, Hongfu
本试验旨在研究非淀粉多糖酶混合物（NSPEC）对育肥猪生长性能、营养物质消化和气体排放的影响。在玉米-杂粕型饲粮中添加NSPEC提高了育肥猪的饲料系数，提高了干物质、中性洗涤纤维、酸性洗涤纤维、粗蛋白质和总能的表观全消化道消化率。此外，饲粮中添加NSPEC也提高了饲粮的消化能。此外，在玉米杂粕日粮中添加NSPEC可减少育肥猪舍的二氧化碳排放量。粪肥的堆积会增加猪舍氨的释放。摘要本试验旨在研究在玉米-杂粕型饲粮中添加非淀粉多糖酶混合物（NSPEC）对育肥猪生长性能、营养物质消化率和气体排放的影响。NSPEC是一种纤维素酶、木聚糖酶、β-葡聚糖酶、β-甘露聚糖酶、α-半乳糖苷酶和果胶酶的组合，采用体外模拟生长猪胃和肠道消化的方法，通过评估玉米-杂粕型饲粮的体外干物质消化率（IVDMD）进行优化。测定营养物质和能量的生长性能、表观全消化道消化率（ATTD）。测定了环境评价室中氨、二氧化碳、氧化亚氮和甲烷的气体浓度。气体检测周期分为每隔1d、2d、3d三个除粪频率。玉米-杂粕型饲粮中添加NSPEC降低了猪的饲料转化率（FCR），提高了猪的干物质、粗蛋白质、总能、中性洗涤纤维和酸性洗涤纤维的ATTD （p< 0.05）。饲粮中添加NSPEC也显著提高了消化能（p< 0.05）。此外，NSPEC的添加降低了试验室内的二氧化碳浓度（p< 0.05）。按平均去除率1d、2d和3d计算，氨排放量显著增加（p< 0.01）。上述结果表明，在玉米-杂粕型饲粮中添加最佳NSPEC可提高育肥猪的生长性能、营养物质消化率并降低二氧化碳排放量。积累的粪便会增加猪舍氨的释放。
Simple SummaryThe objective of the present study was to investigate the effect of the non-starch polysaccharide enzymes cocktail (NSPEC) on growth performance, nutrient digestion and gas emissions on finishing pigs. The addition of the NSPEC into a corn-miscellaneous meal diet improved feed conversion ratio and increased the apparent total tract digestibility of dry matter, neutral detergent fiber, acid detergent fiber, crude protein and gross energy of the finishing pigs. Furthermore, the digestible energy of the diet was also increased by the NSPEC supplementation in the diet. In addition, the inclusion of NSPEC in the corn-miscellaneous meal diet reduced carbon dioxide emissions of a finishing pig house. The accumulation of manure could increase the release of ammonia in a pig house.AbstractThis study was carried out to evaluate the effect of the addition of the non-starch polysaccharide enzymes cocktail (NSPEC) on growth performance, nutrient digestibility and gas emissions in a corn-miscellaneous meal-based diet for finishing pigs. The NSPEC is a combination of cellulase, xylanase, β-glucanase, β-mannanase, α-galactosidase and pectinase optimized by assessing the in vitro dry matter digestibility (IVDMD) of corn-miscellaneous meal diet using an in vitro method of simulating digestion in the stomach and intestine of growing pigs. Growth performance and apparent total tract digestibility (ATTD) of nutrients and energy were measured. The gas concentration of ammonia, carbon dioxide, nitrous oxide and methane in the environmental assessment chambers were determined. The gas detecting period was divided into three frequencies of manure removal of every 1d, 2d and 3d. The addition of NSPEC into the corn-miscellaneous meal diet decreased feed conversation rate (FCR) and increased the ATTD of dry matter, crude protein, gross energy, neutral detergent fiber and acid detergent fiber of pigs (p< 0.05). The digestible energy was also improved (p< 0.05) significantly by NSPEC supplementation in the diet. Furthermore, the supplementation of the NSPEC reduced (p< 0.05) carbon dioxide concentration in the chambers. The ammonia emissions were significantly increased according to average 1d, 2d and 3d manure removal procedures (p< 0.01). These results indicated that the inclusion of optimal NSPEC in a corn-miscellaneous meal diet improved growth performance, nutrient digestibility and reduced carbon dioxide emissions on finishing pigs. The accumulated manure could increase the release of ammonia in a pig house.