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http://ri.uaemex.mx/handle20.500.11799/95166| Title: | Potential impact of prickly pear cactus flour and Salix babylonica extract on cecal fermentation and methane production in horses | Keywords: | Cecal fermentation;Corn grain;Horse nutrition;Prickly pear cactus;Salix babylonica extract;info:eu-repo/classification/cti/2 | Publisher: | Agroforestry Systems | Project: | DOI;http://dx.doi.org/10.1007/s10457-016-0051-8 | Description: | The cecal gas (GP) and methane (CH4) production and cecal fermentation kinetics when corn grain (CG) was replaced with prickly cactus (PC) in a horse’s diet at different levels of Salix babylonica (SB) extract was investigated. Three total mixed rations where CG was replaced with PC at three levels (/kg): 0 g (Control), 75 g (PC75) or 150 g (PC150) were prepared and SB extract added at four levels: 0, 0.6, 1.2 and 1.8 mL/g dry matter (DM) of substrates. No ration type 9 SB extract dose interaction was observed (P [0.05) for GP kinetics and CH4 production. Increasing the level of PC in the ration quadratically increased (P \0.01) the asymptotic GP and decreased (P\0.01) the rate and lag time of GP. Increasing the level of PC in the ration, increased GP values (P\0.05). Increasing the level of SB extract linearly decreased (P = 0.001) the lag time of GP of all diets without affecting the asymptotic GP or the rate of GP. Ration type and SB level had no effect (P [0.05) on CH4 production; however, at 36 h of incubation, SB extract decreased CH4 production. The rations PC75 and PC150 increased cecal pH compared with the control ration. The PC150 ration had the highest (P\0.05) DM degradability, short chain fatty acids production, and gas yield after 24 h of incubation, with no effect (P[0.05) of SB inclusion on all investigated fermentation kinetic parameters. It is concluded that increasing the level of PC in the diet of horse and replacing CG up to 60%, increased GP and improved cecal fermentation kinetics without affecting CH4 production. Inclusion of S. babylonica extract in the tested rations had weak effects on fermentation kinetics although it decreased the lag time of GP. | URI: | http://ri.uaemex.mx/handle20.500.11799/95166 | Other Identifiers: | http://hdl.handle.net/20.500.11799/95166 | Rights: | info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0 |
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