Resumen de Efectos del tratamiento con tiosulfinato sobre la fermentación ruminal y producción de metano en caprino
G. Martínez Fernández, Leticia Abecia, A. I. Martín García, Eduarda Molina Alcaide, David R. Yáñez Ruiz
Twelve non-lactating goats were used to test the effect of the treatment of propyl propane thiosulfinate (PTS) on dry matter intake, body weight and rumen fermentation for 30 days. Goats received a diet based on alfalfa hay and a concentrate (F:C 1:1), and were divided in two groups, treated with 0,2 g/kg BW per day of PTS or without treatment (control). Dry matter intake, body weight, VFA and methane production (L/kg dry matter intake) were analysed on days 7, 14, 21 and 28. Neither dry matter intake, body weight, methane production, total VFA concentration and acetate:propionate ratio were affected (P 0,211) by the PTS treatment after 28 days of treatment. No time effect was observed (P 0,167). Probably the dose, the type of compound or the lack of homogenous distribution of compound within the rumen and the higher dilution rate in vivo were responsible for the lack of significant effects compared with in vitro experiments. Whether a reduction in CH4 emissions would be achieved in vivo with higher doses of the active compound requires further research.
