Performance of growing indigenous goats fed diets based on urban market crop wastes |
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Authors: | C B Katongole E N Sabiiti F B Bareeba I Ledin |
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Institution: | (1) Department of Animal Science, Makerere University, P.O. Box 7062, Kampala, Uganda;(2) Department of Crop Science, Makerere University, P.O. Box 7062, Kampala, Uganda;(3) Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, P.O. Box 7024, 750 07 Uppsala, Sweden |
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Abstract: | The effect of feeding diets including market crop wastes (sweet potato vines (Ipomoea batatas) and scarlet eggplant (Solanum aethiopicum)) on growth and digestibility was studied using 32 indigenous intact growing male goats. Adding elephant grass (Pennisetum purpureum), maize bran and Leucaena leucocephala leaves, four isocaloric and isonitrogenous diets (Sweet potato vines, Solanum, Mixed and Control) were formulated. After
the growth trial, 12 goats were randomly selected for a digestibility trial with the same diets, and 8 goats for a feed preference
test comparing the market wastes and elephant grass. Crude protein (CP) intake was highest (P < 0.05) for the Control (48 g/day)
and lowest for the Sweet potato vines diet (23 g/day). Average daily gain was between 11.0 and 14.2 g/day, and similar between
diets. The DM and CP digestibilities of the diets were 0.56 and 0.56 (Control), 0.62 and 0.56 (Mixed), 0.59 and 0.49 (Sweet
potato vines), and 0.54 and 0.45 (Solanum), respectively. Faecal and urinary N excretions were highest in goats fed the Sweet
potato vines and Solanum diets. Eggplant wastes were the least (P < 0.05) preferred. On average the goats spent 5% of their
8-hour time eating eggplant wastes, 34% on sweet potato vines and 36% on elephant grass. Growth performance and N retention
were low due to the low intake of feed, especially eggplant wastes. |
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Keywords: | Feed preference Ipomoea batatas Solanum aethiopicum Urban market crop wastes |
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