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Paper

Written Paper

Digestion and digesta flow kinetics in goats fed two diets differing in forage to concentrate ratio  [2005]

Ranilla, M.J.(Departamento de Producción Animal I, Universidad de León (Spain)) Carro, M.P. Valdés, C. González, J.-S.

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Two diets consisted of chopped alfalfa hay and concentrate (barley, corn and soybean meal; 39:44:17) with forage:concentrate ratios of 80:20 (C20 diet) and 20:80 (C80 diet) were fed (1.04 kg dry matter) to four Alpine goats according to a cross-over design Digestibility was determined by total faecal collection and Cr and Co were used as markers to estimate solid (kp) and liquid (kliquid) digesta passage rates. Rumen pH was higher (P less than 0.05) for C20 than for C80 diet (6.69 vs 6.15, respectively). kliquid tended to be slower (P less than 0.10) for diet C80 than for diet C20 (0.0475 and 0.0810 h-1, respectively), but kp was not affected (P more than 0.05) by diet. NMFD was higher (P less than 0.05) for the C80 than for the C20 diet (13.7 vs 8.9 g/d, respectively). Goats could be fed diets with high grain-based concentrate levels without negatively affecting NMFD.

From the journal

Options Méditerranéennes. Série A : Séminaires Méditerranéens (CIHEAM)

ISSN : 1016-121X

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