The Effect of Different Concentrations of Total Polyphenols from Paulownia Hybrid Leaves on Ruminal Fermentation, Methane Production and Microorganisms

Animals

Adam Cieślak¹  Julia Puchalska¹  Małgorzata Szumacher-Strabel¹  Min Gao¹  Amlan Kumar Patra²  Maria Nabzdyk³  Sylwester Ślusarczyk⁴  Daniel Petrič⁵ 

[1] Department of Animal Nutrition, Poznan University of Life Sciences, Wolyńska 33, 60-637 Poznan, Poland;Department of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, 37 K. B. Sarani, Kolkata 700037, West Bengal, India;Department of Animal Physiology, Biochemistry and Biostructure, Laboratory of Animal Anatomy, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznan, Poland;Department of Pharmaceutical Biology and Botany, Wrocław Medical University, 50-556 Wrocław, Poland;Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Šoltésovej 4-6, 040-01 Košice, Slovakia;

关键词: ruminants;    Paulownia Clon In Vitro 112;    polyphenols;    methanogens;    ruminal fermentation;   

DOI  :  10.3390/ani11102843

来源: DOAJ

【 摘 要 】

This experiment was conducted to study the effects of different concentrations of polyphenols of Paulownia Clon In Vitro 112^® leaves or their particular parts on in vitro ruminal fermentation, methane production and microbial population. Paulownia leaves with high (PLH; 31.35 mg/g dry matter (DM)), medium (PLM; 26.94 mg/g DM), and low level of polyphenols (PLL; 11.90 mg/g DM) were used from three plantation areas. Lamina (PLLA; 33.63 mg/g DM) and twigs (PLT; 2.53 mg/g DM) of leaves were also collected from the PLM plantation. The chemical analyses of Paulownia leaves indicated that the content of the most basic nutrients (e.g., crude protein concentration of 185 g/kg of DM) were similar to dehydrated alfalfa. The in vitro results showed that the use of Paulownia leaves with the highest content of total polyphenols (PLH and PLLA) decreased methane production, methanogens numbers, and acetate to propionate ratio. In PLT, lowered methane production was followed by reduced substrate degradability and volatile fatty acid (VFA) concentration along with higher acetate to propionate ratio. Therefore, reduction of methane production in PLH and PLLA was attributed to the lowered methanogen population, whereas in PLT it was caused by decreased substrate degradability with the resultant of limited hydrogen availability to the methanogens.

【 授权许可】

Unknown