Effects of feeding rate and formula fineness degree of ring die pellet mill on mechanical property, physical quality, energy requirements, and production cost of poultry diets  

作　　者：Khaled A.Metwally Reda I.Zaki Sally S.Fouda Reem S.Alruhaimi Haifa A.Alqhtani Nouf Aldawood Ayman M.Mahmoud Mohammed A.E.Naiel 

机构地区：[1]Department of Soil and Water Sciences,Faculty of Technology and Development,Zagazig University,44511,Egypt [2]Fish Nutrition and Feed Technology Department,Central Laboratory for Aquaculture Research,Agriculture Research Center,Abbassa 44661,Abu-Hammed,Sharkia,Egypt [3]Bio Engineering Department,Agricultural Engineering Research Institute(AENRI),Agriculture Research Center,Egypt [4]Department of Biology,College of Science,Princess Nourah bint Abdulrahman University,Riyadh 11671,Saudi Arabia [5]Physiology Division,Zoology Department,Faculty of Science,Beni-Suef University,Beni-Suef 62514,Egypt [6]Department of Life Sciences,Faculty of Science and Engineering,Manchester Metropolitan University,Manchester M15GD,UK [7]Department of Animal Production,Faculty of Agriculture,Zagazig University,Zagazig 44511,Egypt

出　　处：《International Journal of Agricultural and Biological Engineering》2023年第3期30-36,共7页国际农业与生物工程学报（英文）

摘　　要：The effect of a machine feeding rate(FR;1,1.5 and 2 Mg/h)and/or three levels of selected fineness degree(FD;3,5 and 7 mm)on machine performance,pellet physical parameters,required energy and production cost of three main types of broilers diets were examined in this experiment.The examined broiler diets were formulated to meet the Ross 308 strain requirements.A complete factorial design(3×3×3)was used to identify the effects of studied factors on the pellet mill machine and pellet production.The obtained results indicated that the pellet mill productivity significantly(p˂0.001)improved through increased pellet mill feeding rate level.In addition,the machine pelleting efficiency was found to be significantly affected by all studied variables and their interactions.While the total power consumption of the machine showed no variations under the impact of the tested factors or with any of their combinations.Regarding the pellet physical quality indices,all broiler diets with all selected FD and lower FR had the maximum durability and bulk density levels.Furthermore,lower feeding rates were associated with higher hardness degrees.The lowest production costs were substantially correlated with high FR and intermediate FD(5 mm).Furthermore,production costs were determined to be reduced in finisher broiler diets under different feeding rates.Moreover,manufacturing costs of finisher broiler meals were observed to decrease in several feeding rates.Overall,these findings indicate the capabilities of producing high-quality pellets and reducing the needed production costs by optimizing feeding rates to 2 Mg/h and 2 mm fineness in broiler diets.

关 键 词：feeding rate fineness degree broiler diets pellet quality production cost 

分 类 号：S831[农业科学—畜牧学]