攀西地区甘蔗渣营养成分和饲用价值分析

为评定攀西地区甘蔗渣作为反刍动物粗饲料的饲用价值，从营养成分、总能、总糖、霉菌毒素含量和饲料相对值（RFV）对攀西地区3个甘蔗渣样品进行综合评定。结果表明：1）以干物质计算，3个甘蔗渣的营养成分都无显著差异（P>0.05）。2）3个甘蔗渣的黄曲霉素（AFB1）、呕吐毒素（DON）和玉米赤霉烯酮（ZEN ）含量都存在显著差异（P<0.05），但3种霉菌毒素含量都在限定范围内。3）3个甘蔗渣的总能、总糖和RFV都无显著差异（P>0.05），总能分别为16.34、16.41和16.40MJ/kg，总糖含量分别为4.33%、4.46%和4.51%，RFV分别为52.89、53.25和54.74。综上：攀西地区甘蔗渣CP、EE、Ca和TP水平较低，而CF、NDF、ADF和ADL水平都较高，攀西地区3个甘蔗渣的AFB1、DON和ZEN含量都在限定范围内。总体来看，攀西地区甘蔗渣的饲用价值较低。

Analysis of nutritional composition and feeding value of sugarcane bagasse in Panxi area

In order to evaluate the feeding value of sugarcane bagasse as roughage for ruminant, three sugarcane bagasses were comprehensively evaluated from the nutritional composition, total sugar content, gross energy, mycotoxin content and feed relative value (RFV). The results showed as follows: 1) based on dry matter(DM), there was no significant difference in the nutritional component of three sugarcane bagasses (P < 0.05).2)There were significant differences in the mycotoxin contents of aflatoxin(AFB1), vomit toxin(DON) and zearalenone(ZEN) (P < 0.05),but contents of three mycotoxin were within the limited range.3) There was no significant difference in the gross energy, total sugar content and RFV(P < 0.05). The gross energy contents of three sugarcane bagasses were 16.34,16.41 and 16.40MJ/kg, respectively.The total sugar contents of three sugarcane bagasses were 4.33%, 4.46%, and 4.51%, respectively. The RFV of three sugarcane bagasses were 52.89,53.25, and 54.74, respectively. In conclusion, the level of CP, EE, Ca and TP was low in Panxi area, while the contents of CF, NDF, ADF and ADL were high.The contents of AFB1, DON and ZEN were all within the limited range. In general,the feeding value of bagasse in Panxi was low.