Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (5): 129-133.doi: 10.11924/j.issn.1000-6850.casb17010076

Special Issue: 畜牧兽医

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Ensiled Rice Straw Affecting Growth Performance and Blood Biochemical Indexes of Goat

  

  • Received:2017-01-16 Revised:2018-01-19 Accepted:2017-04-20 Online:2018-02-26 Published:2018-02-26

Abstract: The study aims at the effects of different treatments on fermentation of ensiled rice straw and effects of ensiled rice straw on growth performance and blood biochemical indexes of goat. The ensiled rice straw with 2.5 g/t lactic acid bacteria, 600 g/t cellulase, 4% molasses and 200 kg/t water could reduce pH value (P < 0.01), concentrations of butyric acid and propionic acid (P <0.05), while increase the contents of dry matter (P <0.01), crude protein (P <0.05) and water soluble carbohydrate (P <0.01). However, the contents of crude fat, neutral detergent fiber and acid detergent fiber had the reverse results. The goats were fed with the diets, in which 30%, 60% and 100% roughage was replaced by ensiled rice straw, respectively. The results showed that the final body weight and average daily gain of goats in group of 100% roughage replaced by ensiled rice straw were significantly higher than those of other groups (P <0.01), but the feed to gain ratio was the lowest. Average daily feed intake showed no significant difference among the groups. Compared with those in the control group, the alkaline phosphatase concentration (P <0.01) and total cholesterol content (P <0.05) in serum of goats in group of 60% roughage replaced by ensiled rice straw decreased significantly. In conclusion, the ensiled effect of rice straw mixed with 2.5 g/t lactic acid bacteria, 600 g/t cellulose, 4% molasses, and 200 kg/t water was better. Replacing 100% roughage by ensiled rice straw could improve growth performance of goat, and reduce breeding cost.