Energy and nitrogen metabolism of swamp buffalo given ruzi grass hay with different levels of soybean meal
2003
Tomoyuki Kawashima(National Institute of Animal and Grassland, Ibaraki (Japan)) | Witthaya Sumamal(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Khon Kaen Animal Nutrition Research and Development Center) | Pimpaporn Pholsen(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Khon Kaen Animal Nutrition Research and Development Center) | Rumphrai Chaithiang(Department of Livestock Development, Bangkok (Thailand). Division of Animal Nutrition. Khon Kaen Animal Nutrition Research and Development Center) | Watcharin Boonpakdee(Department of Livestock Development, Bangkok (Thailand)) | Fuminori Terada(National Institute of Animal and Grassland, Ibaraki (Japan))
Metabolism trail was conducted with four swamp buffaloes, given Ruzi grass hay with different levels of soybean meal, in order to examine the effects of protein level on energy and nitrogen balances as well as fiber digestion. The Ruzi hay contained only 2.5 percent of CP. The CP content in four dietary treatments ranged from 2.6 percent , 6.1 percent, 9.7 percent and 13.3 percent by supplement of soybean meal. The CF and NDF digestibility of Ruzi grass hay in the animals given only Ruzi grass hay were not different from those given the supplement of soybean meal. The nitrogen excretion into the urine of one animal given the ration containing 13.3 percent of CP was extremely high. A high CP content in the feed might have induced the animal to exhibit some metabolic disorder. The ratio of HP to GE was significantly higher in the animals given the highest amount of soybean meal (CP 13.3 percent) than in the animals given the ratio containing 9.7 percent of CP, although it decreased according to the level of CP up to 9.7 percent. Swamp buffalo has the ability to effectively digest fiber without protein supplement. On the other hand, protein supplement, which makes the total CP content more than 10 percent, would not be effective in improving the performance of swamp buffalo, or may be harmful to the animals depending on the quality and quantity of energy sources given.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Kasetsart University