Analysis of feed quality of soft pellets aged at different pelleting temperatures and their effects on growth performance of tilapia
LIU Li
PAN Wenjing
FANG Yufen
LIU Hao
XIANG Yuxin
WAN Meng
ZHU Aixia
Abstract：The aim of this experiment was to determine the quality of soft pellet feed at different pelleting temperatures and its effects on growth performance of tilapia.A single factor experimental design was used to prepare the aged soft pellet feed by setting different pelleting temperatures(90,100,110,120,130 ℃)under the condition of fixing other processing parameters,and the effects of different pelleting temperatures on the quality of the aged soft pellet feed and on the growth performance and muscle quality of tilapia were measured.The results showed that when the granulated temperature was 130 ℃,the cohesion,viscosity,hardness,sinking speed,dissolution loss rate and starch gelatinization degree were 0.4,1 032.01 cP,2 508.48 g,8.22 cm/s,8.83％and 80％respectively.With the increase of pelleting temperature,the final weight,weight gain rate(WGR)and specific growth rate(SGR)of tilapia gradually increased,and reached the maximum value at 130 ℃(P＞0.05).The study indicates that when the pelletizing temperature is 130 ℃,the comprehensive quality of tilapia soft pellet feed and growth performance of tilapia were better.
Keywords：tilapiapelleting temperaturemature soft pellet feedfeed qualitygrowth performance
Publication Date：2025-02-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 45-50 )