Comparative utilization of urea and fungal treated mustard straw by sheep
2000
Mishra, A.S. | Chaturvedi, O.H. | Misra, A.K. | Karim, S.A. (Central Seep and Wool Research Institute, Avikanagar (India)).
The present study was conducted to determine relative efficacy of urea and fungal treated mustard straw in maintaining adult sheep. Mustard straw (MS) treated with urea (UTMS) and fungus (FTMS) was fed ad lib. to ewes in G1 and g2, respectively, along wiht 200 g concentrate mixture/head/day. Urea treatment of Ms increased its CP content from 3.7 to 7.2% which further increased to 7.7% in FTMS. hemicellulose and cellulose content decreased in FTMS. Daily DMI in unit body weight or metabolic body size was higher (P0.01) in FTMS fed animals. Digestibility of DM, NDF and ADF increased (P0.01) and hemicellulose decreased (0.01) in G2 compared to G1. Although nutritive value of the test diets was similar, DE intake in metabolic body size was higher in G2. Both G1 and G2 were in positive N balance, however, per cent N retention was comparatively lower (13.2%). Feeding of UTMS or FTMS along with 200 g concentrate maintained sheep, whereas treatment of MS with Corprinus fimetarius did not add advantage over the urea treated MS.
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