Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 9(8): 1143-1149
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Riswandi1*, Asep Indra M Ali1. Afnur Imsya1, Sofia Sandi1, Basuni Hamzah2, Agus Supriadi3

1Department of Animal Science, 2Department of Agricultural Product Technology, 3Department of Fishery Product Technology, Faculty of Agriculture, Universitas Sriwijaya. Jl. Raya Palembang-Prabumulih KM. 32, Indralaya, South Sumatra, Indonesia, 30662.

Abstract | Swamp roughage haylage is produced by anaerobic fermentation of swamp roughage to provide feed for future use. Feeding haylage as a single feed source in ruminant animals cannot meet the requirements for rumen microbes and host animals to develop optimally. Supplementation of probiotic is then needed. This study aimed to assess the effects of Saccharomyces cerevisiae and Aspergillus oryzae supplementation in swamp roughage haylage-based rations on rumen fermentation characteristics and methane gas emission. Measurements were taken on dry matter digestibility (DMD), organic matter digestibility (OMD), rumen pH, N ammonia (N-NH3) content, total volatile fatty acid (TVFA) concentration, partial VFA concentration, acetate-propionate (C2/C3) ratio, methane gas concentration, and total bacterial count. A completely randomized design with 4 treatments and 4 replicates was used. Treatments consisted of rations containing 70% haylage + 30% concentrate + 0 g probiotic (control), control + 0.05 % Saccharomyces cerevisiae (SC), control + 0.05% Aspergillus oryzae (AO), and control + 0.025 % Saccharomyces cerevisiae (SC) + 0.025 % Aspergillus oryzae (AO). Data were subjected to an analysis of variance and a Duncan multiple range test. Results showed that the probiotics supplementation significantly (P<0.05) increased DMD, OMD, rumen pH, TVFA concentration, partial VFA concentration, and total bacterial count but reduced N-NH3 content, C2/C3 ratio, and methane gas production. It was concluded that combination 0.025 % Saccharomyces cerevisiae and 0.025 % Aspergillus oryzae in swamp roughage haylage-based rations gave the best increase in the ration digestibility, total rumen bacterial count, rumen fermentation characteristics, and reduced methane production.

Keywords | In vitro, Methane gas, Probiotic, Rumen fermentation characteristics, Swamp roughage haylage