Performance of indigenous pigs of upland and lowland Irian Jaya [Indonesia]
1994
Sangle Yohannes Randa
Results of study showed that the average daily gain of pigs in the lowland (0.099 kg) was significantly higher than that in the upland (0.087 kg). The feed conversion of lowland pigs (29.74 was significantly better than the feed conversion of the upland pigs (37.01). However, the difference in sex in each area was not significant. The study on reproductive performance showed that most of the sows were bred at the age of 7 to 7.5 months in both areas. The litter size at first farrowing varied from 4 to 9 piglets at birth, and 4 to 6 at weaning (3 months). In raising the pigs, the use of semi-confined system was mostly found. In breeding, all farmers practiced only the natural breeding. In the upland the most common feed provided was sweet potato; while in the lowland, it was the combination of local feed and cassava. The common style of housing in the upland was ground level, while stage level in the lowland. In both areas, the housing was simply and roughly constructed. The prominent traits of indigenous pigs in the upland and the lowland were similar. Compared to the upland pigs, however, the native pigs in the lowland have longer body, smaller heart girth, and lower height at withers
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