China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (8): 3065-3072.doi: 10.16431/j.cnki.1671-7236.2023.08.004

• Nutrition and Feed • Previous Articles    

Study on Mixed Silage Quality of Calotropis gigantea and Pennisetum sinese with Different Proportions

CHEN Yakun1, YAN Weiming1,2, BU Dengpan1, ZHAO Liansheng1, XU Jianchu3, SHEN Yifan1, ZHENG Airong4, ZHANG Jianyong5   

  1. 1. State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, China;
    3. Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
    4. Henan Provincial Animal Husbandry Technology Extension Station, Zhengzhou 450008, China;
    5. Ningxia Hui Autonomous Region Husbandry Station, Yinchuan 750004, China
  • Received:2023-02-09 Published:2023-07-27

Abstract: 【Objective】 This study was aimed to investigate the quality of Calotropis gigantea and Pennisetum sinese silage with different mixed ratio,and provide a theoretical basis for the preparation of high-quality mixed silage and the development of new feed resources.【Method】 The proportions of Calotropis gigantea and Pennisetum sinese were 1∶0,2∶1,1∶1,1∶2 and 0∶1 (1C0P,2C1P,1C1P,1C2P and 0C1P groups),respectively.After 60 days ensilaging,the sensory score,nutrient components,fermentation qualities and cardiac glycosides contents in different groups were measured to identify the optimum mixed ratio of two plants.【Result】 The sensory evaluation of 1C1P,1C2P and 0C1P groups were better than that of 1C0P and 2C1P groups,which could reach the excellent grade.Different mixed proportions had significant effects on the nutritional components of mixed silage (P<0.05).The content of lactic acid in 1C1P group were significantly higher than those in other groups (P<0.05),and the content of butyric acid was not detected.Compared with before ensilaging,the contents of cardiac glycosides in 1C0P,2C1P,1C1P and 1C2P groups decreased by 4.87%,6.59%,11.49% and 9.52%,respectively.【Conclusion】 The mixed silage showed a significant effect on improving the quality of Calotropis gigantea silage,and played a degrading effect role on the content of cardiac glycoside.The best silage effect was obtained when the ratio of Calotropis gigantea and Pennisetum sinese was 1∶1.

Key words: Calotropis gigantea; Pennisetum sinese; mixed silage; nutrient component; fermentation quality; cardiac glycoside

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