Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (2): 255-265.DOI: 10.3969/j.issn.1004-1524.2022.02.06

• Animal Science • Previous Articles     Next Articles

Effects of Chenopodium quinoa in diets on growth performance, slaughter performance, organ index and intestinal morphology of Luhua chickens

WU Tao1(), WEI Yuming2, JIANG Xiaofan1, HUANG Jie2, YANG Farong2, CHEN Guoshun1, CAI Yuan1, JIAO Ting3, ZHAO Shenguo1,*()   

  1. 1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
    2. Institute of Animal Husbandry, Grassland and Green Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
    3. College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2021-05-31 Online:2022-02-25 Published:2022-03-02
  • Contact: ZHAO Shenguo

Abstract:

To investigate effects of quinoa supplementation on growth performance, slaughter performance, organ index and intestinal morphology of Luhua chickens, a total of 150 healthy 49-day-old Luhua chickens were randomly divided into five groups with three replicates per group and ten chickens per replicate. Four quinoa supplemental levels were set, 4% (Q4), 8% (Q8), 12% (Q12) quinoa seed (raw grain) and 12% quinoa bran (QS) were added into the current diet, and no quinoa raw material was used as control group (CK). The feeding experiment lasted for 75 days.Growth performance, slaughter performance, organ index and intestinal morphology were determined. The results showed as follows: compared with CK, 1) final body weight of group Q4 was significantly increased by 5.23% (P<0.05), diarrhea rate in Q8 and Q12 groups decreased by 47.7% and 52.3%, respectively, while that in QS group increased by 196%, mortality rate in all experimental groups was lower than that in CK. 2) After the end of the experiment, live body weight of Q8 group increased by 4.65% (P<0.05), slaughter percentage in Q4, Q8 and QS groups were increased by 3.29%, 3.73% and 3.54% (P<0.05), respectively; half eviscerated percentage in Q8 and Q12 groups was increased by 5.12% and 3.82 (P<0.05), respectively, and eviscerated percentage in Q8 group was increased by 4.81% (P<0.05). 3) Renal index in QS group was significantly higher than that in CK (P<0.05), and thymus index in Q8 and QS groups was 2.00 times and 2.18 times of CK, respectively (P<0.05). 4) Villus height of jejunum and ileum, ratio of villus height to crypt depth (V/C) and duodenum villus height of QS group were significantly higher than those of CK (P<0.05), Crypt depth of duodenum, jejunum and ileum in Q4 group and QS group were significantly (P<0.05) lower than those in CK. 5) Economic benefit analysis results showed that the gross profit per chicken of Q4 and QS groups was 1.75 yuan and 1.58 yuan higher than that of CK, respectively. Addition of quinoa seed and quinoa bran in diet could significantly improve growth performance and slaughter performance of Luhua chickens, and also had certain effects on improving organ index and intestinal morphology, and 4% quinoa seed had better economic benefit.

Key words: Chenopodium quinoa, Gallus domestiaus, growth performance, slaughter performance, organ index, intestinal morphology

CLC Number: