The future of feed formulation for poultry:Toward more sustainable production of meat and eggs

作     者：Gene M.Pesti Mingan Choct Gene M.Pesti;Mingan Choct

作者机构：Poultry Hub AustraliaArmidaleNSW 2351Australia The University of GeorgiaAthensGA 30602USA The University of New EnglandArmidaleNSW 2351Australia 

出 版 物：《Animal Nutrition》 (动物营养（英文版）)

年 卷 期：2023年第15卷第4期

页      面：71-87页

核心收录：

学科分类：090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学] 

主　　题：Feed formulation Linear programming Non-linear Programming Econometrics 

摘      要：Current methods for feed formulation are based on minimizing costs,not maximizing *** models of bird growth and reproduction as functions of genetic,feed and other environmental variables are being developed,but their adaptation has been *** development of profit maximizing models will evolve to center on the production functions of broilers and *** production functions are the relationship between the value of products(mainly meat and eggs)and the cost of *** production function is the tool used to maximize profits subject to all the various inputs,not just feed or *** production function is subject to the law of diminishing *** most profitable output levels are those where the marginal value(price)of the meat or eggs is just equal to the marginal cost of the inputs including feed,housing,processing and all other *** that affects the production function,bird genetics,feed quality,housing and environment,will be considered to maximize profits for the poultry *** profit maximizing models of poultry firms will improve as various technical improvements are made:metabolizable energy to describe ingredients will evolve to net energy systems that consider that the heat production(and therefore energetic efficiency)of broilers is different depending on the ingredients used to formulate the feed and the environmental temperatures under which they are *** acid needs will include a method to find the birds’needs for the nonessential amino acids.“Digestibleamino acid assays will differentiate between digestion and absorption to best balance various *** carbohydrate fractions of feed ingredients will be determined to optimize the use of exogenous *** value of meat and egg co-products will reduce overall costs(e.g.,organic fertilizer for crop enhancement).Future profit maximizing production models will be ever evolving processes where field conditions and results are continually being utiliz