| The experiment was to determine the appropriate base and feed formulation by screening different proportions buckwheat and corn cob base formulation earthworms,in animal feed formulation principles formulated on the basis of earthworms feed.The experiment provided some the oretical basis for soilless cultivation of earthworm scale application by determining the effect of various base and feed treatment groups on nutrent digestibility,assess the growth and reproduction performance of earthworms.Selection 1890 OhiraⅡyoung earthworms of test species,the healty,the hatch 20 d.test uses 6x3 double factors experiment design, that were six kinds of base material(100% fermented cow dung weeds, 80% fermented chicken manure + 20%, 100% 100% buckwheat husk, corn cob, buckwheat skin + 40% corn cobs, 60% and 40% buckwheat skin + 60% cod)and three kinds of feed(feedⅠgroup is given priority to with corn flour, feedⅡgroup is given priority to with starch,feed Ⅲ group mianly carrots), a total of eight een treatments, each treatment represented by 3 replicates. Where were putted 35, until maturity earthworm up to sexual maturity,Then selection 18 earthworm cocoon in each group, there were divided into 6 groups, selecting 18 earthworm cocoons each group, 3 repeats each group, the breeding period for 90 days.(1) The changes of the basic physical and chemical properties of the base materialCompared between before and after use,the PH values of the base material groups ofⅠ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅵwere extremely reduced(P<0.01);The EC values of the base material groups of Ⅰ, Ⅱ,Ⅳ, Ⅴ, Ⅵwere extremely reduced(P<0.01); the content of the total nitrogen of the base material groups of Ⅰ, Ⅲ, were significantly increasedⅤ(P﹤0.05); the content of the total phosphorus of the base material groups ofⅠ, Ⅲ, were Ⅴsignificantly increased(P﹤0.05); the content of the total potassium of the base material groups ofⅠ, Ⅲ, Ⅴwere extremely increased(P<0.01); the content of the ammonia nitrogen of the base material groups of Ⅰ, Ⅴwere extremely reduced(P<0.01); the content of the nitrate of the base material groups of Ⅰ, Ⅴwere extremely increased(P<0.01); the content of the total carbon of the base material groups ofⅠ, Ⅲ, Ⅴ were extremely reduced(P<0.01).(2)Different digestive rate of nutrients in feedThe nutrient digestibility of crude protein, crude fat, calcium, phosphorus of feedⅡ, were significantly higher than feedⅠ, Ⅲ(P<0.05), The feedⅡwas the best.(3)Effects of different base materials and feed on body weight of the earthwormsThere had no significant between The base material Ⅰ, Ⅱand Ⅲ,Ⅳ,Ⅴ, Ⅵon the initial body weight of the earthworms(P>0.05);There had no significant among the groups of the feedⅠ, Ⅱ, Ⅲ(P>0.05). There had no interactions between the group base material and the group feed.The total weight and the average weight of each earthworm in 15 d and 30 d of the base material Ⅲ,Ⅳ,Ⅴ, Ⅵwere significantly higher than the base materialⅠ, Ⅱ(P<0.05), respectively. And the body weights of the earthworms in the group base materialⅤwas the hightest. The group base materialⅤwas significantly higher than the base material Ⅲ, Ⅳ, Ⅵ, The differences between thefeedⅠ, Ⅲand the feed Ⅱwere significantly(P<0.05),Ther e had significant interactions between the group base material and the group feed about the indicators to be measured except the measurements of crude protein.And the interactions between the base material Ⅴand the feedⅡwere significantly higher than the others(P<0.05).(4)Eeffect of different base material and feed on the reproduce performance of earthwormsGenerating endless belt(weeks), significant differences between groupsⅠ,Ⅱand Ⅲ,Ⅴ(P<0.05), significant differences between groupsⅠand Ⅵ(P<0.05), there were significant differences between the feed groups of Ⅰ,ⅢandⅡ(P<0.05),there were no interaction the base material groups and the feed groups.The weeks of the earthworm to produce cocoon there were significant differences the base material groups ofⅠ,Ⅱand Ⅲ,Ⅴ(P<0.05), significant differences between groupⅠand Ⅵ(P<0.05);there were significant differencegroupsofⅠ, Ⅲand Ⅱ(P<0.05), therewere no interaction between the Base material groups and the feed groups.there were significant differences among.the base material group of Ⅰ×the feed groups of Ⅱ, Ⅲ, the base material group of Ⅲ× the feed groups of Ⅱ, the base material group of Ⅴ× the feed groups of Ⅱ, the base material group of Ⅵ ×the feed groups of Ⅱand the base material group of Ⅱ× the feed groups of Ⅰ, Ⅲ, the base material group of Ⅳ×the feed groups of Ⅰ, Ⅲ, the base material group of Ⅵ× the feed groups of(P<0.05).ⅢThe number of cocoon production per week,there were significant differences the base material groups of Ⅰand Ⅳ,Ⅴ(P<0.05), the base material groups of Ⅱand Ⅲ,Ⅳ,Ⅴ,Ⅵ(P<0.05),no significant differences groupsⅠ,Ⅲ(P>0.05),there were significant difference groups of Ⅰ,Ⅲand Ⅱ(P<0.05),there were no interaction between the Base material groups and the feed groups.there were significant differences among the base material group of Ⅰ× the feed groups of Ⅱ, the base material group of Ⅴ× the feed groups of Ⅱ(P<0.05).About hatching time, the difference between the base material group I,II and group V were significant(P<0.05), the base material group II and group IV, V, VI had significant di fferences(P<0.05);the difference between the feed group I,III and group II were significant(P<0.05), there is interaction effect between the base material group and thefeed group.Thecocoonhatched juvenile earthworm number / week, total cocoon hatched juvenile earthworm number.the difference between the base material group I and group IV, V, VI were significant(P<0.05);the difference between the base material group II and group III,I V,V,VI were significant(P<0.05),the base material group I,II and group IV, V, VI had sign ificant differences(P<0.05), the base material group V and the other five groups had signif icant differences(P<0.05),the difference between the feed group I,III and group II were si gnificant(P<0.05), there is interaction effect between the base material group and feed gr oup.The number of fully developed hatched juvenile earthworm, the number of 30 d fully d eveloped hatched juvenile earthworm, With makings V group finally fully developed, the maximum number of young vermis with makings II group in the least.Significant difference between the feed I- III groups, the group feed II, most basic material and feed between interaction effect.(5)Effects of different base materials and feed on nutrient digestibility of the earthwormsThe content of the adsorbed water, crude protein, crude fat, ash,calcium, phosphorus of the base material Ⅲ,Ⅳ,Ⅴ,Ⅵ were significantly higher than the base materialⅠ, Ⅱ(P<0.05). And the base materialⅤwas the best, The differences between the feedⅠ, Ⅲand the feedⅡwere significantly(P<0.05); There had significant interactions between the group base material and the group feed about the indicators to be measured except the measurements of crude protein.And the interactions between the base material Ⅴ and the feed Ⅱ were significantly higher than the others(P<0.05). |
PDF Full Text Request