| Gryllus testaceus, a kind of insects belonging to Orthoptera ,Gryllidae, are economically of great value which can be utilized as edible, medical and animal foods resources. Primary results in this thesis were as follows, which were mainly on the culture technology and nutrition ingredient analysis of Teleogryllus emma (Ohmachi &Matsuura , the dominant species in Yangling zone.The dominant species of crickets in Yangling zone were identified as Teleogryllus emma Ohmachi&Matsuura, and it was a kind of heterometabola insects whose development period included three forms: egg, nymph and adult, of which nymph usually had seven instars. The dominant crickets in this area led a living habit of loving cloudy place, aggregation and mixed diets. They may murder each other while being short of foods. The female had chirping habit after mature.The culture experiment in rearing cage and artificial climate case (HPG-280) showed :The development period of eggs treated by temperature bellow 4℃ and then reared in 28℃ artificial climate case was shortened from 113 days to 13 days while hatching rate increased from 16.7% to 67% compared to eggs without treatment of temperature bellow 4℃. The treatment time of temperature bellow 4℃ had nothing to do with the development and hatch of cricket eggs as long as it was above one day.Development period (Y) of eggs after being treated by temperature bellow 4℃ varied with rearing temperature (X) from 20 ℃ to 32 ℃ and followed an curve correlation (Y=0.15X2-9.4X+160.5 , R=0.988) between them. The optimum temperature, thermal threshold and thermal sum of eggs were 31.5℃, 13.86℃ and 199.96 + 20.59 day-degrees respectively.Nymph can't normally develop into adult at 16℃ or 36℃ . Reared at different temperature varying from 20 ℃ to 32℃ , Morphological items of Teleogryllus emma Ohmachi&Matsuura were different at different temperature, and development period of nymph, MRGR,longevity and oviposition capacity of adult changed with the temperature. The development period(Y) of nymph was correlated with temperature (X) following a curve regression formulation (Y=0.61X2-37.9X+628.2, R=0.990) . The optimum temperature,thermal threshold and thermal sum of eggs were 30.82 ℃, 12.96 ℃,and 789.86 + 78.52 day-degrees respectively. MRGR of nymph increased while Longevity of adult decreased with the increasing of the temperature. From 20 ℃ to 32 ℃, Oviposition capacity of adult strengthened first and then weakened and the maximum oviposition number per female was 1879 at 26 ℃, the optimum temperature. Above 30℃ were observed dropping of the oviposition capacity , hatch rate and quality of the laid eggs .Eggs were brown and incapable of hatching at 32 ℃. Thermal sum of the total generation was 2438.42 day-degrees.In addition, the oviposition habit of adult had the tendency to choose moist and rarefaction medium. The hatch rate was higher in 10%~20% water containing sandy soil.The culture technology of cricket was proposed: Mixed matured adult with the ratio of $? $=1:2 and reared at 26 ℃, providing 10%~20% water containing sandy soil for oviposition. Eggs were reared at 31.5℃ after being treated at temperature bellow 4℃ for one day and hatched nymphs were reared at 30.82℃ for harvest before mature.Nutrition ingredient analysis revealed abundant nutrition in the body of Teleogryllus Qmma Ohmachi&Matsuura containing 74.29% protein ,11.24 % fat and plentiful vitamin B ,B2, E and mineral element. Eight essential amino acid and proper ratio human needed were found in the body of cricket. Unsaturated fatty acid composed of 80% the fatty acid and the value of P/S was 2.89, which was very suitable for diet. The nutrition value of cricket also included its mineral elements among which were 1260mg potassium and 371 mg sodium per 100g dried material, abundant iron, zinc, calcium, selenium, manganese, and so on.In all, the cricket was worthy of being utilized and developed with a bright prospect because of its nutrition character titled as "high protein and low fat,...
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