Evaluating Nutritional Value And Potential Of Graciousness In Different Stage

This study explores Triarrhena,Miscanthus,Giantreed,Pennisetum,Erianthus and awn 6tall crops undergraduate in nutritional evaluation and forage resources development in early stage.A total of 3 experiments were conducted.In Experiment 1,explore the impact of different growth period of nutrition content of 6gramineous plants.In May 25^th,June 10^th,June 25^th,July 10^th and July 25^th 5 time point samples were collected,and the routine analysis.The determination of CP,EE,ASH,NDF,ADF and ADL..The results show that with the growth period over time,the nutrient content of 6 crops fluctuation?p<0.05?,but not with a trend of crop fluctuation from May to July.This Giantreed stage,the CP with the increase of period of growth and lower,while ADF and NDF will increase and Triarrhena,Miscanthus Napiergrass and Erianthus CP at a point in time from May to July rose to a maximum and then decreased,which showed significant difference between species of.6 grasses and its protein content was above 6%,the development of forage.In summary,Giantreed,Pennisetum,Miscanthus,e.arundinaceus of the 4 crops in the CP at the end of 5 to 7 at the end of period,the content of CP was 7%,as compared with the quality of pasture development,and reed and awn at this stage,the content of CP was more than 6%,protein content is low.In Experiment 2,explore the impact of different harvest time on the 6 Gramineae rumen fermentation.In May 25^th,June 10^th,June 25^th,July 10^th and July 25^th samples were collected.By in vitro gas production was evaluated on its nutritional value.The results show that there is a big difference between the different harvest period cut plant the gas production performance and DMD.DMD,GP and the content of nutrition,Pennisetum reed and e.arundinaceus,respectively,should do in the pasture of Miscanthus floridulus before June25^th,July 25^thh and May 25^thh is appropriate.In summary,Arundo donax,Pennisetum,e.arundinaceus,the optimal harvest time of forage plant growth respectively about 80D growth about 140d,about 105d and about 70D.And the family is in the stage of Di awn cutting at different time points,there was no significant difference.Experiment 3 explores the influence of processing on the nutritional value of silage fermentation parameters and rumen of 6 gramineous plants.The experiment in May 25^th,June25^th,July 25^th were collected in Miscanthus reed and e.arundinaceus,Pennisetum and awn reed grass samples silage silage 45d.After using in vitro gas production development evaluation of its nutritional value.The results showed that the nutritional value 6 the fresh grass kind of large to small respectively:Pennisetum>Erianthus>Giantreed>Miscanthus>Triarrhena>awn Silage nutrient inhibition and the loss of effective Giantreed Pennisetum,and improve the digestibility of silage.But arundinaceus and Jidi nutrients loss much,it is not recommended to separate SilageConclusion:In the period from May 25th to July 25th,different cutting time has significant effect on 6 kinds of gramineous crop nutrient content in the period from May 25th to July 25th.Giantreed,CP content of 6 species of grasses are more than 6%,can do grass development.And Arundo donax,Pennisetum,e.arundinaceus,section five of the best cutting grass awn period should be respectively growth of about 80D,about 140d growth,nutritional value of about 105d and 70D.6 for the grass family forage samples from big to small are:pennisetum>bamboo reed>miscanthus floridulus>mans>saccharum>arundinaceum.