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Nitrogen requirements for maintenance of growing Thai native buffalo fed with rice straw as roughage |
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| รหัสดีโอไอ | |
| Creator | 1. Paengkoum, P. 2. Tatsapong, P. 3. Pimpa, O. 4. Traiyakun, S. 5. Hare, M.D. |
| Title | Nitrogen requirements for maintenance of growing Thai native buffalo fed with rice straw as roughage |
| Publisher | International Buffalo Information Centre, Office of The University Library, Kasetsart University, Bangkok (Thailand) |
| Publication Year | 2556 |
| Journal Title | Buffalo Bulletin |
| Journal Vol. | 32 |
| Journal No. | 1 |
| Page no. | 35-40, 52 |
| Keyword | Thai native buffaloes,Swamp buffalo,Bubalus bubalis,Rice straw,Protein requirement,Nitrogen requirement,N balance,Roughage,Thailand |
| ISSN | 1256726 |
| Abstract | This study was aimed to investigate protein requirement for maintenance in swamp buffalo calves. Four male swamp buffalo calves (12-18 months of age and 218 kg average body weight) were randomly assigned according to a 4 * 4 Latin square design to receive four levels of crude protein (5, 7, 9 and 11 percent CP). The experimental consisted of four periods of 21-d, 14 days for adaptation and the last 7 days for sampling feces and urine. Animals were fasted for measuring N-retention on the last 4 days of the experiment. The N requirement for maintenance was estimated by the N balance and N intakes were inserted into a regression equation. The crude protein intake, N excretion in urine and N balance increased (P LT 0.05) with the increase CP content in the diet. However, dry matter intake and fecal N were not different. The result indicated that the nitrogen requirement for maintenance of growing Thai swamp buffalo calves is 0.75 g N or 4.69 g CP/ kg BW0.75. |
