Artículos de revistas
Indigestible cellulose and lignin in determining feces production and apparent digestibility in horses
Celulose e lignina indigestíveis na estimativa da produção fecal e digestibilidade aparente em equinos
Fecha
2012Registro en:
Acta Sci., Anim. Sci., v.34, n.3, p.267-272, 2012
1807-8672
10.4025/actascianimsci.v34i3.10577
Autor
Oliveira, Kátia de
Costa, Ciniro
Bittar, Carla Maris Machado
Santos, Vanessa Pillon dos
Oliveira, Vinícius Antonio Baptista
Sá, Janaina Carolina de
Institución
Resumen
Four crossbred geldings were used in a randomized blocks experimental design. The objective was to study the use of the internal markers indigestible cellulose (iCEL) and indigestible lignin (iLIG), obtained in situ (cattle) or in vivo (equine) to predict nutrient apparent digestibility in horses. Treatments consisted of different methodologies to determine digestibility: direct method with total feces collection (TC), and indirect method using internal markers iCEL and iLIG obtained either by in situ incubation in bovine rumen or in vivo (IV) using the mobile nylon bag (MNB) technique in horses. Feces production was 2.80 kg in DM, and average recovery rate (p > 0.05) was 101%. Nutrient digestibility coefficient (p > 0.05) estimates were adequately predicted by iCEL and iLIG, obtained in situ or in vivo, with average values of 52.63, 54.17, 64.90, 43.73 and 98.28% for dry matter, organic matter, crude protein, neutral detergent fiber and starch, respectively. It can be concluded that iCEL and iLIG may be obtained in vivo by MNB in horses consuming a forage-concentrate diet, to predict nutrient digestibility coefficients.