Potential impact of prickly pear cactus flour and Salix babylonica extract on cecal fermentation and methane production in horses

Autor: Nicholas E. Odongo, M.M.Y. Elghandour, Abdelfattah Z.M. Salem, L.M. Camacho, Armando Parra-Garcia
Rok vydání: 2016
Předmět:
Zdroj: Agroforestry Systems. 92:1145-1154
ISSN: 1572-9680
0167-4366
DOI: 10.1007/s10457-016-0051-8
Popis: 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 × 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 0.05) 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) 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.
Databáze: OpenAIRE
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