Effects of Different Juncus acutus: Maize Silage Ratios on Digestibility and Rumen Cellulolytic Bacteria

Cetinkaya N., Erdem F.

KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI, vol.21, no.4, pp.499-505, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 4
  • Publication Date: 2015
  • Doi Number: 10.9775/kvfd.2014.12767
  • Journal Name: KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.499-505
  • Keywords: Cellulolitic bacteria, Juncus acutus, Maize silage, Metabolizable energy, Organic matter digestibility, VITRO GAS-PRODUCTION, MICROBIAL PROTEIN-SYNTHESIS, NEUTRAL DETERGENT FIBER, NUTRITIVE-VALUE, CHEMICAL-COMPOSITION, FERMENTATION, ROUGHAGE, PCR, DEGRADATION, POPULATION
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The objectives of this study were to estimate the digestibility of different ratios of Juncus acutus and maize silage and to investigate the effects of them on rumen bacteria. Three different ratios of Juncus acutus and maize silage 100:0 (A), 50:50 (B) and 0:100 (C) were prepared and their gas productions were determined at 0, 3, 6, 12, 24, 48, 72 and 96 h incubation times by ANKOM (RF) gas production system. OMD%, MEOMD, MEGP, and b values of A, B, C were 42.06, 51.06 and 60.21%; 6.72, 8.16 and 9.63 MJ/kg DM; 5.15, 6.28 and 7.55 MJ/kg DM; 20.85, 35.24 and 48.11 mL respectively. There were significant variations between the chemical composition, gas production, OMD%, MEGP and MEOMD values of A, B and C (P<0.05). Abundance of ruminal bacteria were as following Fibrobacter succinogenes>Ruminococcus flavefaciens>Ruminococcus albus values at all incubation times. In conclusion, mixing of Juncus acutus with maize silage in 50:50 ratio increased the amount of rumen cellulolytic bacteria and 22% of both OMD and ME of Juncus acutus. Supplementation of maize silage to Juncus acutus in ruminant diet may improve the utilization of Juncus acutus through providing of nitrogen and fermentable carbohydrates to rumen bacteria.