China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (8): 2395-2403.doi: 10.16431/j.cnki.1671-7236.2020.08.007

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Wolfberry Residue and Liquorice Mixed Additives on Production Performance and Meat Quality of Yellow-feathered Chickens

LI Songqiao, LI Rui, HUANG Liqin, TANG Jing, LI Guoxiang, SHEN Weijun, YAN Jingcai   

  1. 1. Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China;
    2. College of Agronomy, Hunan Agricultural University, Changsha 410125, China
  • Received:2020-02-10 Online:2020-08-20 Published:2020-08-15

Abstract: To investigate the effects of dietary supplementation of wolfberry residue and liquorice mixed additives (LWRMA) on the production performance and meat quality of Yellow-feathered chickens,a total of 240 healthy one-day-old (half male and half female) Liangfenghua Yellow-feathered chickens were randomly divided into 4 groups according to the principle of similar body weight,and with 6 replicates per group (10 broilers per replicate).The control group (CS) was fed with a basal diet supplemented with 45 mg/kg chlortetracycline,while the groups Ⅰ,Ⅱ and Ⅲ were fed with basal diet supplemented with 1%,2% and 4% LWRMA,respectively.The study was lasted for 56 days.The results showed as follows:① Compared with CS group,the average daily feed intake (ADFI) of group Ⅲ was significantly increased (P<0.05),the ADFI showed a significant linear effects on the amount of LWRMA added in multiple periods (1 to 14,29 to 41,42 to 56,1 to 28,29 to 56,1 to 56)(P<0.05);There was no significant difference in average daily gain (ADG) and feed to gain ratio (F/G) among the experimental groups (P>0.05).②Compared with CS group,the breast muscle rate of group Ⅲ was significantly increased (P<0.05),and the breast muscle rate showed a significant linear effect on the amount of LWRMA added (P<0.05).The yellowness (b*) of the breast muscle and leg muscle of groups Ⅱ and Ⅲ were significantly increased (P<0.05),the shear force of leg muscle of group Ⅲ was significantly reduced (P<0.05);The yellowness of the breast muscle and leg muscle,redness (a*) values and water holding capacity (WHC) of the breast muscle and the shear force of the leg muscle showed a significant linear effect on the amount of LWRMA added (P<0.05).The average muscle fiber cross-sectional area and average muscle fiber density showed significant linear effects on the addition of LWRMA (P<0.05).③There was no significant difference in T-AOC,CAT,SOD and GSH-Px among the experimental groups (P>0.05).In conclusion,adding 4% LWRMA to the diet of Yellow feather chickens could not only achieve the same effects as chlortetracycline in production performance and muscle antioxidant performance,but also improve meat quality.

Key words: wolfberry residue; liquorice; Yellow-feathered chickens; production performance; meat quality

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