Affiliation:
1. Universidad Autonoma del Estado de Mexico
2. University of Birjand
3. University of Reading
Abstract
Abstract
This study was conducted to investigate the effects of increasing doses: 0 (control), 6 (low), 12 (medium), and 18 (high) ml/g DM of plant extracts (Moringa, Thyme, and Rosemary) on in-vitro gas production (IVGP) of four fibrous feeds (Penisetum clandestium, Alfalfa hay, Oat hay, and corn stover). IVGP were assessed using three fistulated goats and incubation of samples at specified times. At the end of incubation, the dry matter degradability (DMd), gas yield (GY24), metabolizable energy (ME), short chain fatty acids (SCFA), and microbial crude protein production (MCP) were determined. The results showed that the increasing extract dose had neither linear nor quadratic effect (P > 0.05) on gas production (GP) of all fibrous feeds. Addition of plant extract also increased (P ≤ 0.05) GP at all incubation times being higher for Thyme. Addition of Moringa, Thyme, and Rosemary extracts altered ruminal fermentation parameters including ME, MCP, SCFA, the partitioning factor at 72 h of incubation (PF72), and DMd being higher for Thyme followed by Rosemary and Moringa. As a conclusion, the inclusion of Thyme increases GP, ME, MCP, SCFA, PF72, and DMd compared with Rosemary and Moringa plant extracts. However, additional in-vivo studies should be conducted to confirm these effects.
Publisher
Research Square Platform LLC
Reference20 articles.
1. Adesegun, S.A., Fajana, A., Orabueze, C.I., Coker, H.A. 2007. Evaluation of antioxidant properties of Phaulopsisfascisepala C B Cl (Acanthaceae). Evidence-Based Complementary and Alternative Medicine, 6: 227–231. DOI:10.1093/ecam/nem098.
2. In vitro screening of plant extracts to enhance the efficiency of utilization of energy and nitrogen in ruminant diets;Alexander G;Animal Feed Science and Technology.,2008
3. AOAC. 1997. Official Methods of Analysis.16th edn. Association of Official Analytical Chemists.Arlington, VA, USA.
4. The relationship between in vitro gas production, in vitro microbial biomass yield and 15N incorporation and its implications for the prediction of voluntary feed intake of roughages;Blümmel M;British Journal of Nutrition,1997
5. Evaluation of the effects of mitigation on methane and ammonia production by using Origanum vulgare L. and Rosmarinus officalis L. essential oils on in vitro rumen fermentation systems;Cobellis G;Sustainability,2015