Effect Of Dietary Nutrient Level And Fiber Resources On The Fiber Utilization Ability And Peformance For Hepu Geese

Effect of dietary nutritional level and fiber resources on HePu geese's performance, nutrients utilization had been evaluated by this study. Each experiment as following all contained feeding trial; metabolic trial; the evaluation of geese's carcass quality, serum parameters and chest muscle content. In feeding trial ,60 Hepu geese at age of 4 weeks were randomly divided into 3 groups (20 geese for each) and fed with diet 1 (group 1),diet 2 (group 2)and diet 3 (group 3)for 42d respectively. Metabolic trial was conducted with 12 or 15 geese from 3 feeding groups.Experiment 1: Geese were fed with diet 1 (ME 10.03MJ/Kg) ,diet 2(11.00MJ/Kg),diet 3(11.85MJ/Kg). The results showed that there was no difference in average daily gain among 3 groups and BUN decrease with increasing ME intake (P<0.05). The metabolizability of NDF and Hemicelluloses of group 1 was significantly higher than other groups' at age of 5-week. At age of 9-week, the metabolizability of CF of group 1 was significantly higher than other groups'.Experiment 2:Geese were fed with diet 1 (CP12.50%),diet 2(15.80%), diet 3(17.83%).The results showed that:(1)Average daily gain decreased with increasing dietary CP (P>0.05).(2)BUN increase with increasing CP intake(P<0.05). (3) At age of 5-week, the metabolizability of NDF and hellicellucose of group 2 was significantly higher than other groups'; but Dietary 1 was fit for metabolizing of crude fiber ( P<0.05 )and of other nutrients for geese at age of 9-week.Experiment 3 : Geese were fed with diet 1 (straw as fiber resources) ,diet 2 (corn straw as fiber resource) or diet 3 (peanut vine as fiber resource) respectively. The results showed that:(l) There was no difference in average daily gain among 3 groups. (2)Different fiber resources can not affected serum biochemical parameters carcass quality and the shape of small intestine villi significantly.(3) Diet of group 3 was fit for metabolizing of NDF and Hemicelluloses for geese at age of 8 weeks ( P<0.05 ) .Above all, it was concluded that1 .The metabolizability of CF , NDF, ADF, Hemicelluloses of dietary (concentrate + grass) was 12.76-21.41%, 24.12-39.74% > 8-17.55% , 43.54-62.50%, respectively when dietary(concentrate) CP 15.30%, CF9.30%, ME 10.03-11.85MJ/kg.2.The metabolizability of CF , NDF, ADF, Hemicelluloses of diets (concentrate + grass)was 16.72-21.26%, 25.21-30.60% , 7.27-11.43%, 44.16-53.50%, respectively when dietary (concentrate) ME11.50MJ/kg, CF9.70 - 9.91%, CP 12.50 -17.83%.3.The metabolizability of CF -, NDF, ADF, Hemicelluloses of different fiber resources diets (concentrate + grass) was 4.41-4.88%; 23.62-31.53%; 4.93-5.20%; 46.03-66.38% respectively when dietary(concentrate) ME10.25MJ/kg, CF8.0%, CP13.80%.4. It is advised that diets (concentrate) ME 10.03-11.50 MJ/kg, CP12.50~15.80% when dietary CF8.0~9.9% for 28- 70-d HePu geese.