Productive performance and ruminal variables of lambs fed urea-treated maize stover

Authors

  • Guillermina Martínez-Trejo Campo Experimental Valle de México- INIFAP. Carretera Los Reyes-Texcoco, km 13.5. Coatlinchán, Texcoco, Estado de México, C. P. 56250. Tel. 01 595 92 1 27 38. Ext. 172
  • Ma. Esther Ortega-Cerrilla Posgrado en Ganadería, Colegio de Postgraduados. Carretera México-Texcoco. km. 36.5, Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 95 2 02 00. Ext. 1706
  • Luis L. Landois Palencia Posgrado en Ganadería, Colegio de Postgraduados. Carretera México-Texcoco. km. 36.5, Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 95 2 02 00. Ext. 1706
  • Armando Pineda Osnaya Posgrado en Ganadería, Colegio de Postgraduados. Carretera México-Texcoco. km. 36.5, Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 95 2 02 00. Ext. 1706
  • Jorge Pérez Pérez Posgrado en Ganadería, Colegio de Postgraduados. Carretera México-Texcoco. km. 36.5, Montecillo, Texcoco, Estado de México. C. P. 56230. Tel. 01 595 95 2 02 00. Ext. 1706

DOI:

https://doi.org/10.29312/remexca.v3i6.1369

Keywords:

lambs, maize stover, urea

Abstract

The objective of this study was to investigate the effect of feeding lambs with maize stover treated with urea or supplemented with urea diluted or mixed in the feed. Daily feed intake (DFI), daily weight gain (DWG), and feed conversion (FC) were determined, as well as dry matter (DM), organic matter (OM), crude protein (CP), cell wall (CW), cell content (CC), cellulose (CEL) and hemicellulose (HEM) in vivo digestibility, rumen pH (pH), rumen ammonia (CRA), volatile fatty acids concentration (VFA), and in vitro degradability of dry matter (DDM). Four treatments were randomly assigned to 20 male Criollo sheep (20 ± 5 kg) in a completely randomized design. Diets fed to animals contained 30% concentrate and 70.0% of either untreated maize stover (UM); treated with urea (TM) (4 kg of diluted urea in 20 L of H2O 100-1 kg of maize stover, treated for 30 days); supplemented with diluted urea (SM) (38g de urea 50 mL-1 H2O), or urea mixed in the feed (MM) (38g animal-1day-1) at the moment lambs were fed. The addition of urea did not affect DFI, DWG, or FC. In vivo digestibility of DM, OM, CW, HEM and CEL was higher (p<0.05) in TM, whilst CP and CC was higher in SM. There were no differences due to treatment (p> 0.05) for rumen pH and VFA concentration. CRA and in vitro degradability at 24, 48, and 72 h, were higher in the diets containing urea.

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Vol. 3, Núm. 6

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Published

2018-06-25

How to Cite

Martínez-Trejo Guillermina, Ma. Esther Ortega-Cerrilla, Luis L. Landois Palencia, Armando Pineda Osnaya, and Pérez Pérez Jorge. 2018. “Productive Performance and Ruminal Variables of Lambs Fed Urea-Treated Maize Stover”. Revista Mexicana De Ciencias Agrícolas 3 (6). México, ME:1157-70. https://doi.org/10.29312/remexca.v3i6.1369.

Issue

Vol. 3 No. 6 (2012)

Section

Articles

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