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- Title
饲粮中添加牛至精油对芦花鸡生长性能、屠宰性能、器官指数和肠道形态的影响.
- Authors
江小帆; 吴涛; 魏玉明; 杨发荣; 陈国顺; 焦婷; 蔡原; 赵生国
- Abstract
To investigate the effects of dietary supplementation with oregano essential oil on growth performance, slaughter performance, organ indexes and intestinal morphology of Luhua chickens. A total of 120 49-day-old female Luhua chickens [body weight was (1 478.75±85.81) g] were randomly divided into 4 groups with 3 replicates per group and 10 chickens per replicate. Each group was fed diets supplemented with 0 (Q8 group), 50 (QO50 group), 100 (QO100 group) and 150 mg·kg-1(QO150 group) oregano essential oil, respectively. The experiment lasted for 75 days.The results showed as follows: compared with Q8 group, addition of oregano essential oil had no significant effect on growth performance of Luhua chickens(P>0.05);Half-eviscerated weight, slaughter percentage, eviscerated percentage and bectoral muscle percentage of QO50 group and QO100 group were significantly increased (P<0.05), and there were linear and quadratic relationships between slaughter percentage, eviscerated percentage and oregano essential oil supplemental level(P<0.05) of QO100 group, half-eviscerated weight and pectoral muscle percentage showed a quadratic curve with the increase of oregano essential oil supplemental level; Glandular stomach index in QO50, QO100 and QO150 groups were increased by 21.05%, 21.05% and 26.32%, respectively (P<0.05),and had linear and quadratic relationship with oregano essential oil supplemental level (P<0.05);Ileal crypt depth in QO50 and QO100 groups was decreased by 6.07% and 6.43% (P<0.05), respectively; Jejunal crypt depth in QO100 and QO150 groups was decreased by 5.11% and 4.45% (P<0.05), respectively; Duodenal villus height in QO150 group was increased by 14.00% (P<0.05), and there were linear and quadratic relationships between jejunar crypt depth, duodena villus height and oregano essential oil supplemental level(P<0.05).In conclusion, adding 50 mg·kg-1 oregano essential oil to dietary could significantly improve the slaughter performance, glandular stomach index and crypt depth in jejunum and ileum of Luhua chickens.
- Publication
Acta Agriculturae Zhejiangensis, 2022, Vol 34, Issue 1, p41
- ISSN
1004-1524
- Publication type
Article
- DOI
10.3969/j.issn.1004-1524.2022.01.06