The membrane decoloring and activated carbon decoloring of sulfate polymyxin B were compared. The results showed that the decoloration rate of sulfate polymyxin B was 86% when it was treated by membrane decoloring under the conditions of pressure of 25 kgf/cm2, pH of 2.5, feeding temperature of 50 ℃. The decoloration conditions with activated carbon A were as follows： decoloration time of 50 min, feeding temperature of 55 ℃ ,the addition amount of activated carbon was 2.5% of feed solution, its decoloration rate was up to 75%.

Cassava liquefied supernatant was used as sugar, and corn syrup and soybean meal were added as nitrogen for citric acid fermentation according to the proportion of 3：1 to prepare the fermentation medium with total protein content of 0.6% （m/m）. Under the conditions, the fermentation cycle was 60 h; the ratio of citric acid was 16.8% （m/v）; the total sugar residues was 0.8% （m/v）; and the ratio of transforming was 98.8%.

In order to study the characteristic biological phenomenon of Tylototriton verrucosus under the condition of artificial breeding, T. verrucost samples under condition of artificial breeding in Mojiang County of Pu＇er City, Luxi City of Dehong State, Tengchong County of Baoshan City, Fengqing County of Lincang City and Xinping County of Yuxi City were observed, meanwhile forest rangers and local residents in above areas were visited, reading related literature. The survey showed that the T. verrucosus grew slowly, and all of them had the phenomenon of exuviation. The samples from different areas under the same breeding condition would have difference, such as, growth condition, food requirement, the time and the amount of exuviation.

Some Muscovy duck No. 1 farmer in Yunfu City of Guangdong Province was as basic unit, and contrast test for feed nutrition was carried out by taking self-produced feed as tested group and outsourcing feed as control group to study the feed nutrition standard for Muscovy duck No. I. The results showed that Muscovy duck No. 1 should be raised according to three stages, such as, Muscovy duckling material for 1-18 days of age, Muscovy middle duck material for 19-40 days of age and Muscovy big duck material for 41 days of age to listing. Muscovy middle duck material should be used in the ultra low metabolic energy standard to limit the speed of growth. As compensation, later could use high metabolic feed to effectively control the feed cost for duck per kilogram. Under the conditions in summer, when Muscovy big duck material crude protein standard was set at 15% and metabolizable energy was set at 12.33 MJ/kg, the feed cost for duck per kilogram and secondary-duck rate of listed Muscovy big duck were superior to outsourcing feed.

The aim was to analyze significant factors which impacted forage harvester＇s applicability through some tests. The test methods were based on GB/T 10394.3-2002 ＂The Test Methods of Forage Harvester＂. According to the variance analysis of the test data, it was found that the significant factors which impacted forage harvester＇s applicability uncommonly were crop＇s lodging conditions, vegetation coverage, vegetation types and planting patterns.

Choosing green shell eggs of black-feather black-skin chicken with three different productive periods in northern Jiangsu as research objects,its egg quality was studied from four aspects of egg weight,yolk color, albumen height and Haugh unit. The results showed that the yolk color value of green shell egg in early period was mainly between 7-9. The yolk color value in early period had significant differences with that in middle period and yolk color value in late period had no significant difference with that in early period and middle period. The albumen height in early period, middle period and late period had no significant difference. The egg weight in early period had significant differences with that in middle period and late period. The egg weight was relatively stable in middle period and late period. From the egg quality classification, the proportion of A and AA degree in early period was higher than that in middle period and late period. The green shell egg quality of scatter-fed black- feather black-skin chicken with middle period and late period in shelterbelt had higher consistency.

A strain of Antagonistic actinmycete T12 with bacteriostatic effects on several kinds of pathogenic bacteria was isolated from soil sample. And it was preliminarily identified by morphological characteristics, biological and physical characteristics. The stability of its fermentation liquid was determined. The results showed that T12 had better antibacterial effects on Gram-positive bacteria. At above 70 ℃, the antibacterial activity of the fermentation liquid was slightly weakened with the rise of temperature. And it still showed some antibacterial activity at 100 ℃. The fermentation liquid had stronger stability to temperature. When pH was lower than 6, the antibacterial activity of the fermentation liquid decreased with the reduce of pH, but it showed stronger stability to alkali.

Because the seed coat of Iris lactea Pall. had mechanical and physical obstacles,it had the characteristics of deep dormancy and it was difficult to germinate under normal circumstances. The seed coat of L lactea was treated by hot water treatment ,roller compaction, acid etching and alkaline etching and other method. The results showed that roller compaction, acid etching and alkaline etching had a significant effect on seed germination （P〈0.05）. The best treatment method was alkaline etching for 20 h.

In order to satisfy employing needs of the feed enterprise, feed science experimental teaching was reformed according to the actual situation involved with the teaching practice. Through the reform of experimental content and teaching method, etc., the learning interest, experimental ability, practical ability and ability of comprehensive use of knowledge could be increased. Finally, the teaching quality of feed science experiment was improved.

Feed Science is an important professional course for students in animal science speciality, which is of great significance for improving their professional qualities and comprehensive competitive ability. According to the actual situations of school ,the experiment teaching of Feed Science was reformed from the experiment teaching contents, teaching methods and the assessment system. The experimental skill ,practical ability and integrative skills of applying knowledge of students were strengthened and the quality of experiment teaching was improved.

γ-aminobutyric acid （GABA） is a kind of non-protein natural amino acid. It widely existed in animals and plants, and it is one of main inhibitory neurotransmitters in central nervous system of mammal. It has functions of sedation, anticonvulsant, brain tonic action, strengthening the animal immunity, stress resistance, antioxidation, etc. It has significant effects on the production performance, heat stress resistance, reproductive performance and carcass quality of animals. The biological properties of GABA and its application in animal production were discussed.

Epithelial tight junction is an intercellular junctional complex that is composed of occludin, claudins and ZOs, etc. The tight junction is closely related with gastrointestinal nutrition absorption ,microbial adhesion, the permeability and barrier function of epithelial cell. The molecular structure, biological function and signal regulation of tight junction were reviewed.

The related research of piglet nutrition is always a hot spot in the field of animal nutrition research. Starting from the function research of nutrients （protein,trace elements,polysaccharide,acidification agent, etc.） and additives, the research achievements of piglet nutrition and health care in China in recent years were reviewed. The studies on new materials in piglet nutrients and new technologies of piglet nutrition were expounded.

China has rich Chinese herbal resources and a long history of the application. Meanwhile, China has a big animal husbandry production industry, and has a broad development prospects in additive research and development, further use of Chinese herbal medicine, and produce high quality of animal products. The functions, application, existing problems and development trend of Chinese herbal medicine additive were summarized in order to provide reference for the reasonable development and application of Chinese herbal feed additive in animal production.

Probiotics viable products are directly used for feeding livestock and poultry, can coordinate digestive microbial balance of livestock and poultry, and can add the beneficial physiological or normal flora to improve animal immunity, resistance to disease and diet digestibility so as to prevent and cure diseases and promote the growth. The application technology and research of probiotics in formula feed were reviewed.

The composition, properties, residue in meat, harm to human body, the present detection methods and their problems of Clenbuterol-like agents illegally added in animal feed were summarized.

36 Zhongwei goat wethers with good health, similar birth and weaning time （five months old）and similar weight were randomly divided into four groups, and fed four different levels of nutrition diet. The results showed that the average daily gain of group II was the highest after 50 d fattening, which increased respectively by 18.67%, 18.70% and 23.82% than group ｜ , group HI and 1V group （P〈0.05）. However, the feed to gain ratio of group IV was the lowest, and the economic benefit was the highest group IV, which increased respectively by 0.25 times, 0.15 times and 1.56 times compared with group I, group II and group HI.

Seven kinds of mutton flavor plants among Ningxia tan sheep distribution areas including Ephedra sinica Stapf, Glycyrrhiza uralensis Fisch., Caragana korshinskii Kom., A llium victorialis L., Thymus mongolicus Ronn., Hedysarum scoparium Fisch., Lespedeza daurica （Laxm.）Schindl were collected, and the nutritional compositions and minerals were analyzed. The results showed that the seven mutton flavor plants had high crude protein and mineral contents, so it could meet animals＇ nutrition needs and good forages.

Grassland ecosystem is one of important components in the terrestrial ecosystem, which has a critical effect on the global change and ecosystem functions. The current utilization condition and problems in the grassland management were summarized, and the impacts of grazing, as a key utilization method, on the plants, soil and animals in the grassland ecosystem were reviewed. It was concluded that feasible grazing could promote the increase of grassland productivity and keep the high biodiversity, so it was the key to control the appropriate stocking rate in the grassland management for the sustainable animal husbandry.

Forsythiaside,one of main effective components of forsythia,is currently widely studied. Forsythiaside is a kind of reducing agent. It has a variety of pharmacological actions ,including strong antibacterial activity ,broad anti-bacterial spectrum, stronger antiviral and anti-oxidative activities, antipyretic analgesic and immunity regulation effects. Therefore, forsythiaside is a kind of traditional Chinese medicine with multiple functions, which has greater research value.

The anti-inflammatory effect, toxicity and the effect on immune function of compound Shen Qi oral liquid were studied through animal test. The results showed that the compound Shen Qi oral liquid had obvious anti-inflammatory effect, had obvious inhibition to ear swelling of small white rat caused by xylene, and also had obvious inhibition to the foot swelling of big white rat caused by fresh egg white. High dose of compound Shen Qi oral liquid had significant inhibition to granuloma formation of big white rat caused by cotton ball, and low dose of compound Shen Qi oral liquid had obvious inhibition to that. The compound Shen Qi oral liquid was safe, and had no bad drug reaction and small effect on immune function. Thereby, the compound Shen Qi oral liquid has advantages of obvious anti-inflammatory effect, no side effect, safety and reliability.

Eprinomectin is a kind of broad-spectrum antiparasitic agent that was firstly used in dairy cattle and beef cattle without a withdrawal period. The research advances of eprinomectin in animal medicine were reviewed.

With deepening and boosting the Development of the West Regions, the society and economy in Inner Mongolia are rapidly developing. The agriculture and animal husbandry of the primary industry has stably developed, and the industrial production of the secondary industry has rapid growth. Especially coal ,rare earth, natural gas and other industries have rapid development. Subsequently, environmental pollution with the characteristics of wide influencing range and great treatment difficulty are becoming more and more serious, which has become the main cause of intensification of social contradiction. Meanwhile, more attentions should be paid to the difficulties in environmental protection work because of the particularity of terrain, weather, water bodies and ecological environment of Inner Mongolia. Therefore, the characteristics should be fully considered in environmental pollution work in the process of economic development. Only when the environmental pollution was accordingly controlled, a significant effect can be achieved.