Decision Making Effect of Double Factorial Analysis of Variance in Feeding Experiment;

The result showed that the basal feed formulae of the third group and the second group were the optimum basal feed formulae for meat ducks aged from 3 7 weeks, according to the feeding experiment、metabolism experiment and slaughter e.

The trial outcome was evaluated comprehensively from average body weight、feed payment、survival rate、feed cost per body weight increase、energy utilization、net protein utilization according to the feeding experiment and metabolism exerime.

Toxicity experiments, mutation experiments and 30-day feeding tests were conducted on rats with transgenic rice bearing mtlD/gutD gene.

Two transgenic rice pure lines, generated by particle bombardment, were challenged by the first-instar nymphs of rice brown planthopper (Nilaparvata lugens,BPH) biotype I using the standard BPH bioassay and feeding test protocol essentially the same as described by Rao et al.

The feeding trial of pigs and hens which were fed grape seed meal treated by heating or grape seed meal were carried out.

Four long-term agricultural field experiments combined with an laboratory incubation experiment were conducted to evaluate the effect of organic,inorganic and organic+inorganic fertilizer application on δ13C value of soil organic matter(SOM)and humic acid(HA)in black soil,brown soil,meadow soil and paddy soil.

The pot and incubation experiments were carried out with 10 soils by different indexes including organic matter,total nitrogen content and C/N ratio,nitrogen mineralization processes of soils are simulated using logarithmic,exponential and power functions.