Optimization of preparation process for extrusion puffing Cyperus esculentus meal pellets feed and its effects on growth performance and serum biochemical indexes in finishing pigs
LI Jia
CUI Jiangyu
QIN Lingxiang
LIU Yanqi
Abstract：This experiment aimed to investigate the optimal processing parameters for extrusion puffing Cyperus esculentus meal pellets feed and its effects on the growth performance and serum biochemical indexes in finishing pigs.Using Cyperus esculentus meal as the raw material and gelatinization degree as the evaluation index,the extrusion parameters were optimized by response surface methodology.A total of 120 finishing pigs were randomly allocated into four groups with three replicates per group,and 10 pigs per replicate.The groups were fed experimental diets containing 0(Group A),5％(Group B),10％(Group C),and 15％(Group D)of extrusion puffing Cyperus esculentus meal,respectively.The pre-test period was seven days,and the formal test period was 56 days.The results showed that the optimal extrusion parameters for Cyperus esculentus meal pellets feed were as follows:Material moisture content 22％,screw speed 320 r/min,and zone Ⅲ temperature in extrusion 172 ℃.Under these conditions,the gelatinization degree of the pellets feed reached 90.93％.Compared with Group A,the average daily gain(ADG)of Group C was significantly increased(P＜0.05),while the feed-to-gain ratio(F/G)was significantly decreased(P＜0.05).The serum total protein and albumin concentrations in Groups B,C,and D were significantly increased(P＜0.05),while the urea nitrogen content,alanine aminotransferase,and aspartate aminotransferase activities were significantly decreased(P＜0.05).The study indicates that the inclusion of 10％extrusion puffing Cyperus esculentus meal pellets feed in the diet can improve the growth performance and serum biochemical indexes of finishing pigs.
Keywords：Cyperus esculentus mealextrusion puffinggrowth performanceserum biochemical indexesfinishing pigs
Publication Date：2026-01-16
Online Publishing Date：2026-03-16(First online date of this platform, not the publication date of the document)
Pages：6( 39-44 )