中国农业大学学报2024，Vol.29Issue(12)：152-164,13.DOI:10.11841/j.issn.1007-4333.2024.12.13
衢州地产农副产品营养价值评价及替代猪常规饲料原料的减排潜力
Evaluation of nutritional values of local agricultural by-products and analysis of emission reduction potential achieved by substituting conventional feed ingredients for pigs in Quzhou
摘要
Abstract
To effectively develop and utilize the feed resources of local agricultural by-products of Quzhou,the nutritional values of four primary agricultural by-products,rapeseed meal(RSM),unite bran(UB),rice bran(RB)and brown rice(BR),were accurately evaluated by employing energy and nitrogen balance techniques alongside indirect calorimetry.Based on their nutritional values,the feed formula of growing and fattening pigs used by the Quzhou Sanyiyi Ecological Agriculture Co.,Ltd.was taken as the case study for analysis of potential emission reduction of diversified diets by substituting feed ingredients like corn and soybean meal with these unique local agricultural by-products.The results showed that:Discrepancies were identified between the determined nutritional components and the published values of these four kinds of agricultural by-products in Quzhou.The net energy values as dry matter basis for RSM,UB,RB and BR were 9.27,5.11,12.64,and 11.63 MJ/kg,respectively.It was found that formulating these by-products into the diets of growing-finishing pigs could effectively reduce the proportion of corn and soybean meal in the growing and fattening periods according to the measured values of nutrients of four agricultural by-products,which led to a decrease in nitrogen emissions from the terminal ileum of pigs by 2.5％and 2.4％,respectively,along with a reduction in fecal phosphorus excretion by 16.0％and 6.3％,respectively.The reduction also mitigated the feed cost by 4.0％during the growing period and 1.3％during the fattening period.This study provides insight into promoting the exploration of unconventional feed resources,such as agricultural by-products of Quzhou,additionally,it also offers guidance on economizing and substituting key ingredients,such as corn and soybean meal in swine feed,mitigating the emission of pollutants.关键词
农副产品/营养价值/净能/替代/减排/生长育肥猪Key words
agricultural by-products/nutritional value/net energy/substitution/emission reduction/growing-finishing pig分类
农业科技引用本文复制引用
薛磊,管宇,王玉芳,臧建军..衢州地产农副产品营养价值评价及替代猪常规饲料原料的减排潜力[J].中国农业大学学报,2024,29(12):152-164,13.基金项目
国家重点研发计划项目(2023YFD1301405) （2023YFD1301405）
企业委托项目(202205410410629) （202205410410629）
