Effects of dietary fiber levels on the performance of Khaki Campbell Thai native ducks
1994
Narin Thongwittaya | Tasaki, Iwao (Maejo Institute of Agricultural Technology, Chiang Mai (Thailand). Faculty of Agricultural Production. Dept. of Animal Technology)
Experiment to determine the effects of five levels of dietary fiber (3.5-7.5 percent) in feed rations for Khaki Campbell x Thai Native ducks was conducted at three stages: starting (0-4 weeks old), growing (4-18 weeks old), and laying (18-36 weeks old). Each treatment was replicated three times and all rations were isonitrogenic and isocaloric. Ducks confined together in bamboo slatted floor pens were fed diets as moist mash ad libitum under practical environmental conditions. Starting stage. Ducks given 6.5 percent dietary fiber showed the least consumption rate (1.51 kg), FCR (2.48) and feed cost (10.13 Baht/bird). Best weight gain (613 g) was observed from ducks fed 3.5 percent and 4.5 percent dietary fiber. However, no significant difference existed among treatments. Results also showed that dietary fiber levels had no effect on the retention of CP although increased digestibility of EE and decreased NFE are due to increased fiber levels. Growing stage. Ducks given 5.0 percent dietary fiber showed best weight gain (761 g), feed consumption (10.3 g), FCR (13.5) and feed cost (67.6 Baht/bird). No significant differences existed among treatments. Also, no effect was exerted by dietary fiber levels on age at first laying and retention of CP yet decreased EE and NFE digestibilities were found at increased dietary fiber levels.
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