Nutritive value and voluntary feed intake of African tulip (Spathodea campanulata) and lemon (Citrus limon) foliage as supplements in untreated and urea treated maize stover diets by growing goats
2008
Aregheore, E.M.,The University of the South Pacific, Apia (Samoa). School of Agriculture and Food Technology | Siasau, M.,The University of the South Pacific, Apia (Samoa). School of Agriculture and Food Technology
Four growing crossbred Anglo-Nubian goats (10-15 months old, pre-trial mean live weight 14.8 kg) were used in a randomized 4 x 4 Latin Square design with a 2 x 2 factorial arrangements to investigate the nutritive value and voluntary feed intake of African tulip (Spathodea campanulata) and Lemon (Citrus limon) foliage as supplements in untreated and urea treated maize stover diets. The four diets used were as follows: 1) untreated maize stover + Spathodea campanulata; 2) untreated maize stover + Citrus limon; 3) urea treated maize stover + Spathodea campanulata; 4) urea treated maize stover + Citrus limon. Crude protein concentration (CP) and gross energy conc. (GE) were 13.1% CP and 14.8 MJ/kg DM GE in S. campanulata, and 14.8% CP and 14.3 MJ/kg DM GE in C. limon. Urea treatment increased the CP of the stover from 4.6 to 5.3%. Supplementation with S. campanulata and C. limon reduced the crude fibre (CF) content in urea treated maize stover. Feed intake was higher (P less than 0.05) for urea treated maize stover with S. campanulata than for untreated maize stover with C. limon. The digestibility of the nutrients and protein intake were significantly higher in urea treated diets than in untreated ones. Supplementation of the maize stover with S. campanulata and C. limon improved the dry matter intake and nutrient digestibility of the diets above 50%. In conclusion, the foliage of Spathodea campanulata and Citrus limon can be effectively utilized as supplements in goats' nutrition without adverse effects on feed intake, digestibility and utilization. The leaves of Spathodea campanulata were preferred over those of Citrus limons.
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