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No. de sistema: 000058054

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 170116m20179999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
044 _ _ a| mx
245 0 0 a| Energy utilization, nitrogen balance and microbial protein supply in cattle fed Pennisetum purpureum and condensed tannins
506 _ _ a| Acceso electrónico sólo para usuarios de ECOSUR
520 1 _ a| The aim of the experiment was to assess the effect of condensed tannins (CT) on feed intake, dry matter digestibility, nitrogen balance, supply of microbial protein to the small intestine and energy utilization in cattle fed a basal ration of Pennisetum purpureum grass. Five heifers (Bos taurus × Bos indicus) with an average live weight of 295 ± 19 kg were allotted to five treatments consisting of increasing levels of CT (0, 1, 2, 3 and 4% CT/kg DM) in a 5 × 5 Latin square design. Dry matter intake (DMI) was similar (p > 0.05) between treatments containing 0, 1, 2 and 3% of CT/kg DM and it was reduced (p < 0.05) to 4% CT (5.71 kg DM/day) with respect to that observed with 0% CT (6.65 kg DM/day). Nitrogen balance, purine derivatives excretion in urine, microbial protein synthesis and efficiency of synthesis of microbial nitrogen in the rumen were not affected (p > 0.05) by the increase in the levels of condensed tannins in the ration. Energy loss as CH4 was on average 2.7% of the gross energy consumed daily. Metabolizable energy intake was 49.06 MJ/day in cattle fed low-quality tropical grass with a DMI of 6.27 kg/day. It is concluded that concentrations of CT between 2 and 3% of DM of ration reduced energy loss as CH4 by 31.3% and 47.6%, respectively, without affecting intakes of dry and organic matter; however, digestibilities of dry and organic matter are negatively affected.
650 _ 4 a| Pennisetum purpureum
650 _ 4 a| Forraje
650 _ 4 a| Consumo de piensos
650 _ 4 a| Taninos condensados
650 _ 4 a| Recursos energéticos
650 _ 4 a| Alimento para el ganado
700 1 _ a| Piñeiro Vázquez, Ángel Trinidad
e| coaut.
700 1 _ a| Canul Solís, Jorge Rodolfo
c| Doctor
e| coaut.
700 1 _ a| Alayón Gamboa, José Armando
c| Dr.
e| coaut.
700 1 _ a| Chay Canul, Alfonso Juventino
c| Doctor
e| coaut.
700 1 _ a| Ayala Burgos, Armín Javier
e| coaut.
700 1 _ a| Solorio Sánchez, Francisco Javier
e| coaut.
700 1 _ a| Aguilar Pérez, Carlos Fernando
e| coaut.
n| 24461175400
700 1 _ a| Ku Vera, Juan Carlos
e| coaut.
773 0 _
t| Journal of Animal Physiology and Animal Nutrition
g| Vol. 101, no. 1 (February 2017), p. 159-169
x| 0931-2439
900 _ _ a| Solicítelo con su bibliotecario/a
901 _ _ a| Artículo con arbitraje
902 _ _ a| BG / MM
904 _ _ a| Enero 2017
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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*Solicítelo con su bibliotecario/a
Energy utilization, nitrogen balance and microbial protein supply in cattle fed Pennisetum purpureum and condensed tannins
Piñeiro Vázquez, Ángel Trinidad (autor)
Canul Solís, Jorge Rodolfo (autor)
Alayón Gamboa, José Armando (autor)
Chay Canul, Alfonso Juventino (autor)
Ayala Burgos, Armín Javier (autor)
Solorio Sánchez, Francisco Javier (autor)
Aguilar Pérez, Carlos Fernando (autor)
Ku Vera, Juan Carlos (autor)
Nota: Acceso electrónico sólo para usuarios de ECOSUR
Contenido en: Journal of Animal Physiology and Animal Nutrition. Vol. 101, no. 1 (February 2017), p. 159-169. ISSN: 0931-2439
No. de sistema: 58054
Tipo: - Artículo con arbitraje
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"The aim of the experiment was to assess the effect of condensed tannins (CT) on feed intake, dry matter digestibility, nitrogen balance, supply of microbial protein to the small intestine and energy utilization in cattle fed a basal ration of Pennisetum purpureum grass. Five heifers (Bos taurus × Bos indicus) with an average live weight of 295 ± 19 kg were allotted to five treatments consisting of increasing levels of CT (0, 1, 2, 3 and 4% CT/kg DM) in a 5 × 5 Latin square design. Dry matter intake (DMI) was similar (p > 0.05) between treatments containing 0, 1, 2 and 3% of CT/kg DM and it was reduced (p < 0.05) to 4% CT (5.71 kg DM/day) with respect to that observed with 0% CT (6.65 kg DM/day). Nitrogen balance, purine derivatives excretion in urine, microbial protein synthesis and efficiency of synthesis of microbial nitrogen in the rumen were not affected (p > 0.05) by the increase in the levels of condensed tannins in the ration. Energy loss as CH4 was on average 2.7% of the gross energy consumed daily. Metabolizable energy intake was 49.06 MJ/day in cattle fed low-quality tropical grass with a DMI of 6.27 kg/day. It is concluded that concentrations of CT between 2 and 3% of DM of ration reduced energy loss as CH4 by 31.3% and 47.6%, respectively, without affecting intakes of dry and organic matter; however, digestibilities of dry and organic matter are negatively affected."