| It had to be face with that the protein feed be hard up all over the world. However, Tenebrio molitor L. is an available resource of animal protein feed, because of its high protein content, rich nutrition, low price, and easily being absorbed. So that Tenebrio molitor is the hopeful resource of protein feed. Rearing method of T. molitor and utilization as protein feed were carried out in the present study.Experiment I Tenebrio molitor L. needed to be reared in the vessel with slippery inner wall. Available water was propitious to development of T. molitor. Fast growth was reached when reared with feedstuff consisted of gooey, rather than corn flour or fish meal. The proportion of T. molitor .worm number to feed was approximately 2.5~3 tol, its cost price per kg was about 2.5 yuan.Experiment II For the purpose of evaluating the typical ration based on the larvae, pupae and adults of T. molito, analysis was conducted on the nutrients of the roughages and ration. The results showed that the protein content of larvae, pupae and adults was 41.23%, 42.86%, 53.18%, respectively, and the crude fat was 40.03%, 37.97%, 15.81%, respectively. The nutrition value of T. molito was similar to fish meal, especially the content of lysine and methionine were higher than that of fish meal, which suggested that T. molitor was a good resource of food protein and fat.Experiment III In this test, two Xinjiang Merino ewes (average initial live weigh 40±3.02kg ), fitted with a rumen fistula and abomasum fistula were fed with diets consisting of basal dietary and protein supplement of T. molito larvae, pupae, and adults. Fish meal was used as control group. The results showed that rumen degradation rate of total dietary protein of T. molito larva and adult and fish meal were 4.17%, 18.24% and 35.2% at 4h, 14.14%, 24.76%, 39.2% at 8 h and22.6%, 39.42%, 41.8% at 12 h, respectively. The rumen degradation rate of the larva and adult of T. molito, were lower than fish meal at 4h or 8h, therefore, T. molito was a protein that had low degradation and high protein through rumen.Experiment IV Effect of feed with different protein on the fry growth of African catfish clarias gariepinusThe survive rate of Clarias macrocephalus were no significant under fed with diets consisting of basal dietary with fish meal and protein supplement of living larvae, pupae and death adults, metabolize matter of T. molitor . But these diets with T. molitor could improve the water quality to raise fry. The effects of length and weightiness of Clarias macrocephalus reared with larvae, pupae of T. molitor .and fish meal were better than adult and metabolize matter.The fry of Clarias macrocephalus reared with dietary replacing fish meal with equivalent larvae and pupae of T. molitor, the food conversion ratio decreased by 0.16,0.39 respectively, which is significantly superior to other treatments (P<0.05) .,but the weight was up to 8.98, 12.57 respectively, which is significantly superior to other treatments (P<0.05) , feed utilizing rate increased by 3.28,9.69 respectively,... |
