| Probiotics in small ruminant nutrition |
| Paper ID : 1044-WDG2017 |
| Authors |
|
hamid paya *1, Akbar Taghizadeh2 129Ų„ahman Blvd.,Tabriz, Iran 5166616471 2professor |
| Abstract |
| According to the Food and Agriculture Organization of the United Nations and the World Health Organization, probiotics are defined as live microorganisms, which when administered in adequate amounts, confer a health benefit on the host. Ruminant animals principally depend on microbial degradation of their feed rather than on direct enzyme degradation as in most non-ruminants(1). There are marked differences between the various probiotic groups regarding their properties and mode of action. Lactic acid producing bacteria (e.g. Lactobacilli and Enterococci) provide a constant lactic acid supply in the rumen, helps the overall micro flora to adapt the lactic acid accumulation, stimulate lactate utilizing bacteria and stabilize ruminal pH. Lactate utilizing bacteria (e.g. M. elsdenii) has been used to decrease concentration of lactate by converting to VFA and maintain ruminal pH. Propionibacteria ferments lactate to propionate, and an increase of propionate production in the rumen results in increases of glucose production, providing more substrates for lactose synthesis, improving energetic efficiency and reducing ketosis(2). Enterotoxin-producing strains of E. coli attach to intestinal epithelial cells and mucus to induce diarrhea. Authors reported that L. rhamonsus GG could attach to epithelial cells via hydrophobic interactions and limit pathogens from attaching to the enterocytic receptor. Probiotics for ruminants have mainly been selected to improve various ruminal digestion by increasing pH in the rumen, fiber digestion and the synthesis of microbial proteins. Also improving apparent DM, CP, NDF and ADF digestibility in meat goats fed diet supplemented with commercial probiotics than control group was reported(3). |
| Keywords |
| Probiotics, Small Ruminant, Performance, Digestibility |
| Status: Abstract Accepted (Poster Presentation) |