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2016 | 25 | 3 |
Tytuł artykułu

In vitro gas production and degradation kinetics of elephant grass silage with dried tamarind residue

Warianty tytułu
Języki publikacji
PL
Abstrakty
EN
This study was conducted to evaluate fermentation, degradation kinetics and gas production of elephant grass silages enriched with dried tamarind (Tamarindus indica ) residue (DTR). The experimental design was 4 × 7 factorial, with 4 inclusion levels of DTR (0, 8, 16 or 24% on an as-fed basis), and 7 silo opening times (days 1, 3, 6, 12, 24, 48 and 60), and 3 replicates. The kinetics of degradation and gas production were evaluated in the samples of silages opened at day 60 by the semi-automatic gas production technique. Silages with the inclusion of DTR showed lower pH values ( < 0.05) until the day 6. The N-NH3 concentration did not differ ( > 0.05) between DTR levels and silo opening times. The inclusion of DTR in the ensiling of elephant grass increased silage dry matter (DM) content and caused a linear decrease ( < 0.05) in all parameters evaluated for gas production. At each 8% increase in DTR inclusion, the maximum total volume of gas production, gas production rate from total carbohydrates and time of colonization decreased by 6.1 ml · g–1 of DM, 0.006 ml · g–1 of DM · h–1 , and 2.4 h, respectively. However, the effective degradability increased linearly (2.2%) at each 8% increase in DTR inclusion ( < 0.05). In conclusion, it was observed that the 24% inclusion of DTR to elephant grass silage provided a more rapid reduction in pH, reduced the gas production and increased DM degradability
Słowa kluczowe
Wydawca
-
Rocznik
Tom
25
Numer
3
Opis fizyczny
p.259-265,fig.,ref.
Twórcy
autor
  • Department of Veterinary, Federal University of Sao Francisco Valley, Petrolina PE, 56306-410 Brazil
autor
  • Department of Veterinary, Federal University of Sao Francisco Valley, Petrolina PE, 56306-410 Brazil
  • Department of Animal Science, Federal University of Lavras, Lavras MG, 37200-000 Brazil
autor
  • Department of Animal Science, Federal University of Sao Francisco Valley, Petrolina PE, 56306-410 Brazil
  • Department of Animal Science, Federal University of Bahia, Salvador BA, 40170-110 Brazil
autor
  • Federal University of São Francisco Valley, Semiarid Embrapa, Petrolina PE, 56302-970 Brazil
  • Department of Animal Science, Federal University of Sao Francisco Valley, Petrolina PE, 56306-410 Brazil
autor
  • Department of Animal Science, Federal University of Lavras, Lavras MG, 37200-000 Brazil
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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