In vitro gas production of five rations of different maize silage and concentrate ratios influenced by increasing levels of chemically characterized extract of Salix babylonica

Authors : Mona Mohamed Mohamed Yasseen ELGHANDOUR, Ahmed Eid KHOLIF, Adrian Zaragoza BASTIDA, Dora Luz Pinzンn MARTÍNEZ, Abdelfattah Zeidan Mohamed SALEM

Pages : 186-194

Doi:10.3906/vet-1408-62

View : 10 | Download : 5

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :This study was carried out to assess the effect of the chemical substances of Salix babylonica insert ignore into journalissuearticles values(SB); extract on in vitro rumen fermentation of five mixed rations with different maize silage to concentrate ratios. Fifty-nine compounds were identified in SB extract using the retention time and mass spectral technique. Interactive effects were noted insert ignore into journalissuearticles values(P < 0.001); for the asymptotic gas production insert ignore into journalissuearticles values(GP); insert ignore into journalissuearticles values(b);, the rate of production insert ignore into journalissuearticles values(c);, the initial delay before GP begins insert ignore into journalissuearticles values(L);, pH, dry matter digestibility, metabolizable energy insert ignore into journalissuearticles values(ME);, organic matter digestibility insert ignore into journalissuearticles values(OMD);, short chain fatty acids insert ignore into journalissuearticles values(SCFAs);, gas yield at 24 h insert ignore into journalissuearticles values(GY_{24});, microbial crude protein, and in vitro GP. Both 1.2 and 1.8 mL SB/g DM had the highest insert ignore into journalissuearticles values(P < 0.05); b and c values. Addition of 1.2 and 1.8 mL SB/g DM linearly improved insert ignore into journalissuearticles values(P < 0.001); ME, OMD, SCFAs, and GY24. It could be concluded that, based on the highly detected interaction effects between ration types and extract doses for fermentation parameters and GP, the most effective dose of SB varied between incubated total mixed rations. However, the ration of 25% silage and 75% concentrate had the highest nutritive value, especially at doses of 1.2 to 1.8 mL SB/g DM total mixed ration.
Keywords : Concentrate, silage, in vitro fermentation, Salix babylonica