The effects of dietary energy density and lysine:calorie ratio on the growth performance of the 20 to 55 lb pig

摘要

A total of 336 barrows (initially 21.8 lb and 31 ± 2 d of age) was used to evaluate the results of increasing levels of choicewhite grease and lysine:calorie ratio on pigperformance. Increasing levels of both choicewhite grease and lysine:calorie ratio improved the growth rate and efficiency of pigs fed from 20 to 55 lb.