The Technology Of Pure And Mixture Sousing Baled Silage Forage And The Effect Of Feeding Lamb

This experiment has studied the technology of pure and mixture soiling haled silage and the effect of feeding lamb.The experimental forage species are Qinghai oats 444(produced in Qinghai),ximu vetch 881(produced in Hexi,Gansu province,4 kinds of forage products has been made,fresh dry oat forage,oat+fresh dry vetch,baled silage oat,baled silage oat+vetch,the method of baled silage is to cylindrical use C.A.B.E baled machine to form cylindrical baled forage(diameter 65cm,height 70cm),making forage bale 3-5 layer with bale machine and 2PEX film(green,black,white,the thick of 25um),average weigh of forage bale is 10kg,pilily in the open sky.The experimental animals are 40tibetan aged 9-month.Two stage of feeding animals experiment were divided.First stage is different treatment forage products effects on lamb performance,second stage is combing of different treatment forage products and concentrate feed effect on feeding results of lamb.The results showed that baled silage forage of pare and mixture solding have good quality.Accounting for over 80%for good quality and middle quality from bed quality for 20%.December to February of second year.Bad quality silage forage dominated most from March to May,good quality and middle-quality forage account for 45%in May,while bad quality forage is 55%pH value is between 4.0-5.4.With increasing to silay time,the quality of silage forage decreased,nutrition varying of pure and mixture sowing be through different treatment is mainly embodying in CP content.Comparing with fresh oat,dry oat of CP content decreased by 20%,but CF increased by 3.8%.But cp content oat baled silage rise,increased by 7.7%than harvest oat and 34.6%than dry oat.The content of crude fibre increased by 18%than harvest oat's,and 13.7%than dry oat's. Comparing dry mixture of dry oat and vetch with harvest mixture of oat and vetch,CP decreases by 31.3%,but CF rise by 5.0%.It is almost same in crude protein;crude fibre comparing baled silage with fresh forage.The crude protein of oat and vetch baled silage increase by 64.4%than mixture of dry oat and vetch,but crude fibre decreases by 10.8%.The fresh forage intake of experimental sheep doubled:but decreasing in intaking of silage forage and dry forage.The intake of baled silage oat decreased by 6.0%than dry forage and 12.3%than mixture of oat and vetch. For changing trend of dry matter intake;dry forage＞baled silage forage,pure sowing forage＞mixture sowing forage.Following is order of 4 groups:dry oat forage(611.4g)＞oat baled(574.7g)＞mixture of oat and vetch dry forage(572.2g)＞oat and vetch baled(502.0g).There is not significant difference among the former three groups by deviation analyze.But there is significant difference between oat and vetch baled and other three groups(P＜0.05).There is extern significant difference between dry oat and oat and vetch baled(P＜0.01).The intake of crude protein for each experimental sheep respectively is,miture baled group＞miture dry forage group＞pure baled group＞pure dry forage group.If only feed forage products as daily food,comuring feeding of baled oat and baled oat and vetch group with dry forage group,the body weight of sheep decreased by 1.60kg and 1.72kg respectively.The lamb intake oat and dry mixture of oat and vetch forage is DM 611.4kg and DM 572.2g respectively in average day.The energy of sheep gained can basically maintain the needs for growing.But for oat silage forage group and oat and vetch silage forage,lamb intake DM 574.4g and DM 502.0g respectively;such energy can not meet the maintain needs.The body weight tends to decrease.For group of dry oat and vetch supplement 150g concentrate the average body weight of lamb increased by 3.4kg(P＜0.05)than controlling group,for supplement 300g concentrate food,the average body weight of lamb increased by 5.8 kg(P＜0.01),the rate of gaining weight increased by 5666.67%and 966.67%respectively.For group of baked oat and vetch silage supplement 150g and 300g concentrate food,the average body weight of lamb increased by 3.5kg and 5.32kg respectively.The rate of gaining rised by 402.30%and 611.49%;For group of dry oat and vetch supplement 150g and 300g concentrate,the forage digestion rate rised by 125.66%and 116.09% respectively;For group of baled oat and vetch supplement 150g and 300g concentrate food.The forage digestion rate rised by 142.51%and 128.2%respectively.