Sheep growth in a Javanese village in relation to feed intake, composition and quality and Leucaena supplement
1983
Chaniago, T.D. | Mahijuddin, P. | Yates, N.G. (Balai Penelitian Ternak, Research Institute for Animal Production, Bogor (Indonesia))
Sheep offered only village feedstuffs, had an initial liveweight of 20.7 kg liveweight gain of 54 g per day, and a dry matter intake of 720 g per day (2.8% of liveweight with a feed conversion ratio of 13.3 whereas sheep with a similar initial liveweight (20.4 kg) offered the Leucaena supplement, had a significantly higher (P0.001) daily dry matter intake (910 g or 3.5% of liveweight) but a similar liveweight gain (63 g per day) with a feed conversion ratio of 14.4. Carcass weights were similar (14.3 and 14.2 kg for Groups 1 and 2, respectively) at the end of the study. The major components of the village feedstuffs were tops (17 +- 14%) and tuber peelings (12 +- 11%) of Manihot utilissima (cassava), tops of Ipomoea batatas (sweet potato) (38 +- 18%) and natural grass (14 +- 11%) consisting mainly of Ischaemum timorensis. Although their proportions in the diet varied substantially from week to week, as indicated by the high standard errors of the means, the NDF, protection, as and in vitro dry matter digestibility percentages for composite samples of feedstuffs taken at weekly intervals showed relatively small variations with means and standard errors of 55.3 +- 3.9, 11.9 +- 1.3 and 51.5 +- 3.6, respectively. There were significant negative correlations between the percentage cassava tops and the dietary NDF content (r
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