Welcome to Acta Prataculturae Sinica ! Today is Share:

Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (8): 199-205.DOI: 10.11686/cyxb2020283

Previous Articles    

Effect of moisture content and additives on the fermentation quality of Neolamarckia cadamba leaf silage

Xiang GUO1(), De-kui CHEN2, Na CHEN2, Yun LI3, Xiao-yang CHEN1(), Qing ZHANG1()   

  1. 1.College of Forestry and Landscape Architecture,South China Agricultural University,Guangdong Research Center of Woody Forage Engineering Technology,Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm,Guangzhou 510642,China
    2.College of Animal Science,South China Agricultural University,Guangzhou 510642,China
    3.College of Biological Sciences and Technology,Beijing Forestry University,Beijing 100083,China
  • Received:2020-06-23 Revised:2020-09-24 Online:2021-07-09 Published:2021-07-09
  • Contact: Xiao-yang CHEN,Qing ZHANG

Abstract:

In order to study the effects of moisture content and additives on the fermentation quality of Neolamarckia cadamba leaf silage, two batches of N. cadamba leaves with different water contents of 60% and 75% were chopped and ensiled without additive, or with one of three additive treatments: inoculant containing 6.00 log10 cfu·g-1Lactobacillus plantarum (LP), 120 U·g-1 cellulase (C), or 6.00 log10 cfu·g-1 LP and 120 U·g-1 cellulase (LP+C). Six replicates of each treatment were weighed into plastic bags and stored at ambient temperature (about 30 ℃) for 60 days. Before ensiling the contents of crude protein and water-soluble carbohydrate in leaf dry matter were 12.48% and 4.49%, respectively. Compared to 60% water content, 75% water content caused a significant decrease in pH value, numbers of lactic acid bacteria and yeast cells, content of neutral detergent fiber, tannin content and ammonia nitrogen content of the silage (P<0.05), while the contents of lactic acid and acetic acid increased significantly (P<0.05). Treatments LP and LP+C significantly decreased the pH value, the number of lactic acid bacteria and the content of condensed tannins (P<0.05), while increasing the content of lactic acid (P<0.05). At the same time, C and LP+C significantly decreased the neutral and acid detergent fiber contents (P<0.05), and increased crude protein content (P<0.05). For the treatment with 75% water content and the additions of LP and LP+C, content of condensed tannins was were significantly reduced (P<0.05). In conclusion, the 75% water content treatment had a positive effect on the fermentation quality of N. cadamba leaf silage. Silage quality was improved by additives, and the combined application of LP and C gave optimal results.

Key words: Neolamarckia cadamba leaves, moisture, additive, silage, fermentation quality