添加纤维素酶或甲酸对青贮菠萝茎叶饲用品质的影响

Abstract

Abstract: The research was designed to study the effect of cellulose or formic acid on feeding value of silage pineapple leaves.The treatment included the silage directly （control group），silage with 0.1 g/kg cellulose group，with 0.2 g/kg cellulose group，with 3.0 g/kg formic acid group，with 6.0 g/kg formic acid group.Nutrients content and rumen degradation of nutrients were analyzed after silage for 45 days.The results showed that compared with the control group，two groups of cellulose significantly increased the content of tannins （P＜0.05）,while the other contents of ingredients were not significantly changed （P＞0.05）.Addition of 3.0 g/kg formic acid significantly decreased the contents of ammoniacal nitrogen （NH₃-N），Ca and P （P<0.05），but significantly increased the content of water soluble carbohydrates （WSC）（P＜0.05）.Addition of 6.0 g/kg formic acid significantly increased the contents of dry matter （DM） and WSC （P＜0.05）,but significantly decreased the contents of crude protein （CP），acid detergent fiber （ADF），neutral detergent fiber （NDF），NH₃-N, Ca and P （P＜0.05）.Addition of 6.0 g/kg formic acid significantly increased the degradation rate of DM within 72 h （P＜0.05），but had no significant effect on the degradation rates of CP and NDF at 72 h （P＞0.05）.In conclusion，under this experiment condition，adding 6.0 g/kg formic acid had the best quality of silage pineapple leaves，followed by the direct silage group.

Key words: pineapple leaves; silage; cellulose; formic acid; feeding value

LI Meng-chu，WANG Ding-fa，ZHOU Han-lin，ZHOU Lu-li. Effect of Cellulase or Formic Acid on Feeding Value of Silage Pineapple Leaves[J]. .

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Effect of Cellulase or Formic Acid on Feeding Value of Silage Pineapple Leaves

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