Effect of cultivar and storage on laboratory quality traits of rice straw
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Rice straw from sixteen cultivars were analyzed for crude protein
(CP), neutral (NDF) and acid (ADF) detergent fiber, acid detergent
lignin (ADL), Silica, in vitro organic matter digestibility (IVOMD) and
metabolizable energy (ME) at the time of harvest and after three
months of storage under shed. Surprisingly storage significantly (P
< 0.0007) increased straw quality traits. Correlations between quality
traits at harvest and after storage varied (CP: r = 0.86, P < 0.0007;
NDF.· r =0.75, P = 0.008, ADF. r = 0.50, P = 0.05, ADL r = 033, P =
0.27, Silica. r = -0.02, P = 0.95, IVOMD. r = 058, P = 0.02; MEr= 0.58,
P = 0.02) suggesting that changes in fodder quality ranking among
cultivar could occur because of storage.
Palabras clave
crops, rice straw, storage