By proliferating cell nuclear antigen(PCNA) immunohistochemisty,terminal deoxynucleotidyl transferase mediated dUTP-biotin nick end labeling(TUNEL),light and electron microscopy techniques,the changing patterns of lymphocyte proliferation and apoptosis during the embryonic and post embryonic development of the Tianfu duck bursa of Fabricius were studied.

By the methods of routine anatomic,morphology,transmission electron microscope and immunhistochemistry,the structure of the bursa of fabricius in Tianfu duck and the distribution of five neuropeptides in the bursa were studied during the embryonic and post embryonic development.

Preparation of flavor mutton silk and de-odoring of mutton with wash;

The Present Situation and Trends of the Mutton Processing in China;

Effect of three kinds of preservative agent on quality of mutton at ambient temperature;

The effect of compound protein on the productive performance and serum parameters of sheep;

Effect of glutathione on growth performance,carcass traits and meat quality in sheep;

The Lab.testing techniques of key pestilences of mutton sheep

Effects of different accession of cysteamine in daily feed on carcass quality and serum parameters of mutton sheep were studied by random trial.

Breeding three times within two gears were selected as the best suitable way of breeding in scale mutton sheep farm in Ningxia according to the basic principle of proceed from actual condition and suit measure,in order to stably develop millionmutton sheep industralization of Ningxia a gricultural and cultivation groups and companies.

Analysis for the prospect of mutton sheep production and its potentialities of market based on the present state of mutton sheep production and fully investigation about present state and developing trend of mutton sheep production.