Effect To Growth And Development Of Locusta Migratoria Manilensis (Meyen) Reared On Different Kinds Of Diets And Preliminary Identification Of Intestinal Bacterium Of Locusta Migratoria Manilensis (Meyen)

Locusta migratoria(Linnaeus),belonging to Locusta Linnaeus,Oedipodidae, Acridoidea,Orthoptera,is a kind of common pest distributed widely in china.There are ten subspecies in the world in Locusta migratoria(Linnaeus),among them three subspecies(L,m.manilensis(Meyen),L,m..migratoria(Linnaeus),L,m.tibetensis Chen) distributed in China.Locusta migratoria manilensis(Meyen) can cause damage,at the same time,it is a kind of important biological resource that has much value in the sides of eating,medicine,feed,et.,a kind of experimental material of entomology,physiology and biochemistery,anatomy study and a new kind of protein resources.At present,the recyclical use of L.raigratoria manilensis(Meyen) has been grew vigorously.Using L.migratoria manilensis(Meyen) as material,the amount of eating,weight gain extent and the rate of death as main quota,this text tested the breeding effect of some kinds of low-priced artificial diets;using wheat bran as material,using the above quotas,tested the breeding effect of the same artificial diet with different moisture contents;separated 16 swain dominant bacteria.The results are as follows:1.Using four kinds of artificial diets(made of(No.1:lettuce leaf,wheat bran and water),(No.2:carrot,wheat bran and water),(No.3:Lolium perenne),(No.4:corn leaf)), the results of test indicated that the diet of No.1 is worth popularizing for better feeding effect and lowest price;the diet of No.2 can be a kind of auxiliary diet for common feeding effect;the diet of No.3 is especially perfect fo the feeding in winter for better feeding effect and lower price;the diet of fresh corn leaf can be a kind of auxiliary diet for best feeding effect but highest price.At the same time,we can draw an important conclusion:The inclined diets of L. migratoria rnanilensis(Meyen) don't only consist of plant of Gramineae and Cyperaceae; L.migratoria manilensis(Meyen) has a inclined direction to some kinds of plant of Compositae and Umbelliferae.2.Using wheat bran with different moisture contents to feed L.migratoria manilensis(Meyen),the results of experiment indicated that the feeding effect of the same diet but with different moisture contents is different;limited in scope,the higher the moisture content of diet,the better the feeding effect;the diet with moisture 80%has the best feeding effect,and the moisture content of diet is higher than 40%at best.The result of experiment also testes the scientific thesis——L.migratoria manilensis(Meyen) eats for water to a certain extent not only for food.3.Sixteen strains of bacteria were isolated from the adult of L.migratoria manilensis(Meyen)(♀and(?)).The bacteria morphology,cultural characters,dyeing and physiological and biochemical reactions were studied systematically.The genus names of bacteria are Serratia,Brachybacterium,Yokenella,Penterobacter,Microbacterium, Citrobacter,Paenibacillus,Salmonella,Clavibacter,Actinobacillus,Moelleralla,Acinetobac ter,Escherichia,Staphylococcus,Kluyvera,Klebsiella.There are 12 in♀and 10 in♂kinds of bacteria in the intestines of the adults of L.migratoria manilensis(Meyen) and six kinds of them are the same.Distinct diversity exists in the quantity of bacteria in different genus.