Yield and nutritive value of forage corn and sorghum at cutting time for silage making
2003
Sumon Pojun(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Animal Nutrition Research Section) | Panya Thammasal(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Sakaew Animal Nutrition Research and Development Center) | Prasert Pojun(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Sakaew Animal Nutrition Research and Development Center)
Experiment was conducted to determine The yield and nutritive value for silage making of corns and sorghums at Sakaew Animal Nutrition Research Center which soil chemical composition are 8.04 pH, 4.09 percent organic matter, 36.36 ppm phosphorus and 379.26 ppm potassium. There were seven treatments consisted of 3 lines of corn, (Supanburi 1 or UT203, Jumbo, Commercial Line and Red Sorghum.). Whole corn plant were cut while starch was at 25-50 percent of the seed pod and whole sorghum were cut while over 50 percent of spike head was found. The experiment was conducted during June-September 2000. The results showed that the commercial line of sorghum which cutting at 90 days after germinated gave higher fresh and dry matter yield (19,801 and 4,965 kg/rai) and also protein yield (271.16 kg protein/rai), respectively (P LT 0.05), which was higher than Jumbo, Red Sorghum, Nakornsawan 1 and Suwan 5 (200.31-230.59 kg protein/rai). The Supanburi 1 gave the lowest yield. For the silage quality, the results show that every lines of corn and sorghum except Red Sorghum have a good quality. When both protein yield and silage quality were considered in case of fertile soil and enough of rainy, the commercial line of sorghum was selected.
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