scholarly journals Aerobic stability of alfalfa silage and methods of its improvement

2021 ◽  
Vol 901 (1) ◽  
pp. 012001
Author(s):  
Yu A Pobednov ◽  
A A Mamaev ◽  
B A Osipyan ◽  
G Yu Laptev ◽  
E A Yildirim ◽  
...  
Keyword(s):  
High Resistance ◽  
Vital Activity ◽  
Gaseous Products ◽  
Aerobic Stability ◽  
Alfalfa Silage ◽  
Aspergillus Sp ◽  
Bacterial Preparations

Abstract Alfalfa is a non-silage crop, the silage of which became possible after the effect of drying was detected. A special feature of alfalfa is the intensive proteolysis that occurs during silage, and the prolonged development of undesirable microflora due to the slow acidification of feed. The objective of the research was to determine the effectiveness of the use of Biotrof, Biotrof 111, Biotrof 2+ and Biotal Axfast NS Gold in the silage of dried (37.07% SV) alfalfa mass. It was found that the use of these drugs contributed to the rapid acidification of feed to a pH of 3.97-4.08, against a pH of 4.96 in silage without additives, which led to the suppression of the vital activity of undesirable bacteria, a decrease in the breakdown of nutrients to gaseous products by 1.7-2.3 times and the accumulation of ammonia by 1.5-4.0 times. Due to the high resistance of alfalfa silage to aerobic spoilage, the use of bacterial preparations did not lead to an improvement in the aerobic stability of the silage, but by restraining the development of some yeasts, including pathogenic ones, and fungi of the Aspergillus sp. species, it helped to improve the sanitary status of the feed. Yeasts of the genera C. gattii and D. hansenii serve as marker organisms, an increase in the number of which indicates the occurrence of aerobic spoilage in the feed.

scholarly journals Effects of calcium propionate on the fermentation quality and aerobic stability of alfalfa silage

2017 ◽  
Vol 30 (9) ◽  
pp. 1278-1284 ◽  
Author(s):  
Zhihao Dong ◽  
Xianjun Yuan ◽  
Aiyou Wen ◽  
Seare T. Desta ◽  
Tao Shao
Keyword(s):  
Aerobic Stability ◽  
Fermentation Quality ◽  
Calcium Propionate ◽  
Alfalfa Silage

scholarly journals Effects of Class IIa Bacteriocin-Producing Lactobacillus Species on Fermentation Quality and Aerobic Stability of Alfalfa Silage

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1575
Author(s):  
Fuhou Li ◽  
Zitong Ding ◽  
Adegbola T. Adesogan ◽  
Wencan Ke ◽  
Yun Jiang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactobacillus Plantarum ◽  
Crude Protein ◽  
Ammonia Nitrogen ◽  
Water Soluble ◽  
Neutral Detergent Fiber ◽  
Lactobacillus Delbrueckii ◽  
Aerobic Stability ◽  
Fermentation Quality ◽  
Alfalfa Silage

The effects of two strains of class IIa bacteriocin-producing lactic acid bacteria, Lactobacillus delbrueckii F17 and Lactobacillus plantarum (BNCC 336943), or a non-bacteriocin Lactobacillus plantarum MTD/1 (NCIMB 40027), on fermentation quality, microbial counts, and aerobic stability of alfalfa silage were investigated. Alfalfa was harvested at the initial flowering stage, wilted to a dry matter concentration of approximately 32%, and chopped to 1 to 2 cm length. Chopped samples were treated with nothing (control, CON), Lactobacillus delbrueckii F17 (F17), Lactobacillus plantarum (BNCC 336943) (LPB), or Lactobacillus plantarum MTD/1 (NCIMB 40027) (LPN), each at an application rate of 1 × 106 colony-forming units/g of fresh weight. Each treatment was ensiled in quadruplicate in vacuum-sealed polyethylene bags packed with 500 g of fresh alfalfa per bag and ensiled at ambient temperature (25 ± 2 °C) for 3, 7, 14, 30, and 60 days. The samples were then subjected to an aerobic stability test after 60 days of ensiling. Compared with the CON silage, the inoculants reduced the pH after 14 days of ensiling. After 60 days, pH was lowest in the LPB-treated silage, followed by the F17 and LPN-treated silages. Inoculation of F17 increased concentrations of lactic acid in silages fermented for 7, 14, 30, and 60 days relative to other treatments, except for the LPN-treated silages ensiled for 30 and 60 days, in which the lactic acid concentrations were similar to that of F17 silage. Application of F17 and LPB decreased the number of yeast and mold relative to CON and LPN-treated silages. Compared with the CON silage, inoculant-treated silages had greater aerobic stability, water-soluble carbohydrate, and crude protein concentrations, and lower neutral detergent fiber, amino acid nitrogen, and ammonia nitrogen concentrations. The LPB-treated silage had the greatest aerobic stability followed by the F17-treated silage. Both class IIa bacteriocin producing inoculants improved alfalfa silage fermentation quality, reduced the growth of yeasts and molds, and improved the aerobic stability of the ensiled forage to a greater extent than the proven LPN inoculant. However, higher crude protein concentration and lower ammonia nitrogen concentration were observed in LPN-treated silage relative to other treatments.

scholarly journals Effects of citric acid residue and lactic acid bacteria on fermentation quality and aerobic stability of alfalfa silage

2020 ◽  
Vol 19 (1) ◽  
pp. 744-752
Author(s):  
Xuxiong Tao ◽  
Sifan Chen ◽  
Jie Zhao ◽  
Siran Wang ◽  
Zhihao Dong ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Citric Acid ◽  
Lactic Acid Bacteria ◽  
Aerobic Stability ◽  
Fermentation Quality ◽  
Alfalfa Silage

Inoculants for alfalfa silage: Effects on aerobic stability, digestibility and the growth performance of feedlot steers

1998 ◽  
Vol 53 (2) ◽  
pp. 171-181 ◽  
Author(s):  
T.A McAllister ◽  
R Feniuk ◽  
Z Mir ◽  
P Mir ◽  
L.B Selinger ◽  
...  
Keyword(s):  
Growth Performance ◽  
Feedlot Steers ◽  
Aerobic Stability ◽  
Alfalfa Silage

scholarly journals Essential oil and apple pomace affect fermentation and aerobic stability of alfalfa silage

2021 ◽  
Vol 51 (3) ◽  
pp. 371-377
Author(s):  
M. Besharati ◽  
V. Palangi ◽  
V. Ghozalpour ◽  
Z. Nemati ◽  
T. Ayaşan
Keyword(s):  
Essential Oil ◽  
Crude Protein ◽  
Dry Matter ◽  
Apple Pomace ◽  
Aerobic Stability ◽  
Low Carbohydrate ◽  
Acid Detergent Fibre ◽  
Fermentation Quality ◽  
Alfalfa Silage ◽  
Experimental Treatments

This study assessed the effects of the additions of an essential oil (EO), composed of ricinoleic acid, cardol, cardanol, and apple pomace, on fermentation quality and aerobic stability of alfalfa silages. The experimental treatments consisted of T1) alfalfa (control), T2) alfalfa with EO, T3) alfalfa (75%) with apple pomace (25%), T4) alfalfa (75%) with apple pomace (25%) and EO, T5) alfalfa (50%) with apple pomace (50%), T6) alfalfa (50%) with apple pomace (50%) and EO, T7) alfalfa (25%) with apple pomace (75%), and T8) alfalfa (25%) with apple pomace (75%) and EO. The addition of apple pomace decreased the silage pH compared with the control (P <0.01). Apple pomace at 25% level increased the total volatile fatty acid (iVFA) content (P <0.05). Essential oil (EO) decreased tVFA and increased dry matter (DM) content 90 days after ensiling (P <0.01). Apple pomace decreased ammonia (N-NH3), crude protein (CP), and crude ash (CA) content and increased the amounts of neutral detergent fibre (NDF) and acid detergent fibre (ADF) (P <0.01). Essential oil and apple pomace (level 75%) increased effective digestibility (P <0.05). Apple pomace decreased aerobic stability and the addition of EO increased aerobic stability (P <0.05). Thus, use of apple pomace as a source of fermentable carbohydrate and/or the addition of EO in the preparation of high-quality alfalfa silage is recommended to offset its high buffering capacity and low carbohydrate content.

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