Effects of monobutyrate on meat quality and amino acid content in broilers

QUAN Jinmei; WU Zhilei; WANG Xiaowen; ZHAO Sumei; CUN Jinquan; LI Yongneng

doi:10.13557/j.cnki.issn1002-2813.2025.04.005

Abstract：The experiment aimed to investigate the effects of monolaurate on the meat quality and amino acid content in broilers.A total of 240 healthy one-day-old AA broilers(half male and half female)were randomly divided into five groups,with six replicates per group and eight broilers per replicate.The CK group was fed a basal diet,the Anti group was fed a diet containing 0.1％kitasamycin,and broilers in the experimental groups were fed diets containing 0.15％(M1 group),0.30％(M2 group)and 0.45％(M3 group)monobutyrate,respectively.The trial lasted for 42 days,after which the breast and leg muscles were collected to measure muscle quality,conventional nutritional components,and amino acid content.The results showed that compared to the CK and Anti groups,there were no significant differences in water loss rate,cooking loss,shear force,and meat color in the breast and leg muscles of the experimental groups(P＞0.05),but the pH value of the breast and leg muscles in the M3 group was significantly higher(P＜0.05).Compared to the CK and Anti groups,the addition of monolaurate to the diet had no significant effect on the crude fat,crude protein,crude ash,and moisture content in the breast and leg muscles of the broilers(P＞0.05).The isoleucine content in the breast muscles of the M2 group was significantly higher than that of the CK group(P＜0.05),the lysine content in the breast muscles of the M3 group was significantly higher than that of the CK and Anti groups(P＜0.05),the methionine and histidine concentrations in the leg muscles of the M3 group were significantly higher than that of the CK group,and the alanine and leucine concentrations were significantly higher than that of the Anti group(P＜0.05).The results show that the supplementation of monobutyrin can improve the meat quality of broilers to a certain extent,and the effect is better when the supplemental level of monobutyrin is 0.45％.