不同水平金针菇菌糠对育肥猪生长性能、养分表观消化率及经济效益的影响

Effect of different levels of mushroom bran on growth performance,nutrient apparent digestibility,and economic benefit of finishing pigs

试验旨在研究不同水平的金针菇菌糠对育肥猪生长性能、养分表观消化率及经济效益的影响。选择200头体重相近、健康的“杜×长×大”三元杂交育肥猪,随机分成4组,每组5个重复,每个重复10头猪。对照组育肥猪饲喂基础饲粮,试验组育肥猪分别饲喂含有2.5%、5.0%和10.0%的金针菇菌糠的试验饲粮。试验期8周。结果表明,与对照组相比,5.0%菌糠组育肥猪的平均日增重显著升高(P<0.05),料重比显著降低(P<0.05);2.5%、5.0%菌糠组育肥猪对干物质的表观消化率显著提高(P<0.05),5.0%菌糠组育肥猪对粗纤维的表观消化率显著提高(P<0.05),2.5%、5.0%、10.0%菌糠组育肥猪对粗蛋白的表观消化率显著提高(P<0.05);2.5%、5.0%、10.0%菌糠组的增重收入分别提高了21.60、43.20、21.28元/头,利润分别提高了14.45%、25.29%和18.13%;5.0%、10.0%菌糠组育肥猪血清球蛋白水平显著提高(P<0.05),血清尿素氮、胆固醇及甘油三酯水平显著降低(P<0.05)。研究表明,育肥猪饲喂适量的金针菇菌糠可以提高生长性能、养分表观消化率、养殖利润,改善部分血清生化指标,且金针菇菌糠的适宜添加量为5.0%。

The experiment was conducted to investigate the effect of different levels of mushroom bran on the growth performance,nutrient apparent digestibility,and economic benefit of finishing pigs.A total of 200 healthy'Duroc×Landrace×Yorkshire'three-way crossbred finishing pigs with similar body weight were randomly divided into four groups,with five replicates per group and 10 pigs per replicate.Pigs in the control group were fed a basal diet,and pigs in the experimental groups were fed the experimental diets containing 2.5%,5.0%,and 10.0%of mushroom bran,respectively.The experiment lasted for eight weeks.The results showed that compared with the control group,the average daily gain of finishing pigs in the 5.0%mushroom bran group significantly increased(P<0.05),and the feed to gain ratio significantly decreased(P<0.05).The apparent digestibility of dry matter of pigs in the 2.5%,5.0%mushroom bran groups significantly increased(P<0.05),the apparent digestibility of crude fiber of pigs in the 5.0%mushroom bran group significantly increased(P<0.05),and the apparent digestibility of crude protein of pigs in the 2.5%,5.0%,and 10.0%mushroom bran groups significantly increased(P<0.05).The weight gain income of the 2.5%,5.0%,and 10.0%mushroom bran groups increased by 21.60,43.20 and 21.28 yuan per pig,respectively,and the profit increased by 14.45%,25.29%,and 18.13%,respectively.The serum globulin level of finishing pigs in the 5.0%and 10.0%mushroom bran groups significantly increased(P<0.05),and the serum urea nitrogen,cholesterol and triglyceride levels significantly decreased(P<0.05).The study indicates that feeding an appropriate amount of mushroom bran can improve growth performance,nutrient apparent digestibility,breeding profit and some serum biochemical indexes of finishing pigs,and the appropriate amount of mushroom bran is 5.0%.