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《Pratacultural Science》 2007-01
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Effect of cutting time on the nutritional contents of alfalfa leaf meal

TIAN Yu-min~1,HE Li-tao~2(1.College of Animal Husbandry and Veterinery Medicine of Jingzhou Medical College,Jingzhou 121001,China;2.Aminal Husbandry & Veterinary Extension Station of Jingzhou City,Jingzhou 121001,China)  
The trial was conducted to determine the feasible cutting time for producing alfalfa leaf meal.The effect of cutting time on the quality of alfalfa meal was investigated,sampled at four phases: bud appering,10% flowering,50%flowering and 80% flowering,and determined stalk: leaf ratio,crude protein and crude fiber.The result showed that: with the delay of cutting time,leaf ratio reduced evidently after 10% flowering(P0.01);The differences of leaf meal crude protein between four phases were remarkable(P0.01);The differences of leaf meal crude fiber increased significantly with the delay of cutting time(P0.05),after 50% flowering,the crude fiber content was significantly higher than bud appearing phase and 10% flowering phase(P0.01).Feasible cutting time for producing alfalfa leaf meal was bud appearing to 10% flowering phase.On basis of bud appearing phase,leaf ratio,leaf crude protein and leaf meal volume weight was negatively correlated to the delayed days of cutting time after bud appearing,positively correlated to leaf crude fiber.Leaf crude protein was positively correlated to leaf volume weight;thus leaf meal volume weight could be used to estimate leaf meal crude protein.
【CateGory Index】: S541.9
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