Utilization of silkworm pupa meal on pregnancy and lactating sow diets
1994
Sompoch Tubcharoen | Nattayaton Sumon | Sane Thongear (Kasetsart Univ., Bangkok (Thailand). National Swine Research and Training Center)
Effects of substitution of silkworm pupa for fish meal and soybean meal were studied in pregnant and lactating sow. A total of 80 sows composed of 27 Large White, 26 Landrace and 27 Duroc Jersey ranging from 1-3 parities were divided into 4 groups of equally parities distributed in each breed. Each group of the animals was randomly fed an experimental diet as following for 2 consecutive cycles of reproduction. Diet 1: A control corn-soybean meal-fish meal diet; Diet 2: Diet 1 but 100 percent of fish meal protein was replaced by silkworm pupa; Diet 3: Diet 1 but 100 percent of soybean meal protein was replaced by silkworm pupae; Diet 4: Diet 1 but both fish meal and soybean meal protein were replaced by silkworm pupae. Results of the fiest reproductive cycle have indicated that the number of pig born alive, conception rate and empty days of sows on diet 1, 2, 3 and 4 were 8.30, 9.59, 9.52 and 7.46 (P0.05); 94.64, 88.87, 77.76 and 91.98 percent (P0.05) and 6.95, 17.31, 11.97 and 12.80 days (P0.05), respectively. The number of pigs born alive and empty days of sows on Diet 1, 2, 3 and 4 in the second reproductive cycle were 9.61, 9.12, 8.31 and 9.30 (P0.05); and 8.05, 12.96, 8.33 and 14.23 days (P0.05), respectively. The production costs of a piglet were not significantly differences among the sows fed every experimental diets.
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